NASA'S SERVIR Gulf of Mexico Project: The Gulf of Mexico Regional Collaborative (GoMRC)
NASA Technical Reports Server (NTRS)
Quattrochi, Dale A.; Irwin, Daniel; Presson, Joan; Estes, Maury; Estes, Sue; Judd, Kathleen
2006-01-01
The Gulf of Mexico Regional Collaborative (GoMRC) is a NASA-funded project that has as its goal to develop an integrated, working, prototype IT infrastructure for Earth science data, knowledge and models for the five Gulf U.S. states and Mexico, and to demonstrate its ability to help decision-makers better understand critical Gulf-scale issues. Within this preview, the mission of this project is to provide cross cutting solution network and rapid prototyping capability for the Gulf of Mexico region, in order to demonstrate substantial, collaborative, multi-agency research and transitional capabilities using unique NASA data sets and models to address regional problems. SERVIR Mesoamerica is seen as an excellent existing framework that can be used to integrate observational and GIs data bases, provide a sensor web interface, visualization and interactive analysis tools, archival functions, data dissemination and product generation within a Rapid Prototyping concept to assist decision-makers in better understanding Gulf-scale environmental issues.
Gulf of Mexico Initiative: NASA Capacity Building in the Gulf Region
NASA Astrophysics Data System (ADS)
Armstrong, D.; Graham, W. D.; Searby, N. D.
2012-12-01
In the wake of hurricanes Katrina and Rita, NASA created the Gulf of Mexico Initiative (GOMI) to help the region recover and to build the capacity of local and regional organizations to utilize NASA Earth science assets to establish effective policies, encourage sustainable natural resource management and utilization, and to expeditiously respond to crises. GOMI worked closely with the Gulf of Mexico Alliance (GOMA), a regional collaboration of the five US Gulf states and 13 federal agencies, to select projects that addressed high priority issues of the region. Many capabilities developed by this initiative have been adopted by end-users and have been leveraged to respond to other natural and man made disasters such as the Deepwater Horizon oil spill (2010), record breaking floods along the Mississippi River (2011), unprecedented tornado supercells (2011), and extreme drought (2012). Examples of successful capacity building projects will be presented and the lessons learned from these projects will be discussed.
Why is Coastal Community Resilience Important in the Gulf of Mexico Region?
The Gulf of Mexico Program supports the regional collaborative approach and efforts of the Coastal Community Resilience Priority Issue Team of the Gulf of Mexico Governors’ Alliance and its broad spectrum of partners and stakeholders.
Venezuelan equine encephalitis virus activity in the Gulf Coast region of Mexico, 2003-2010.
Adams, A Paige; Navarro-Lopez, Roberto; Ramirez-Aguilar, Francisco J; Lopez-Gonzalez, Irene; Leal, Grace; Flores-Mayorga, Jose M; Travassos da Rosa, Amelia P A; Saxton-Shaw, Kali D; Singh, Amber J; Borland, Erin M; Powers, Ann M; Tesh, Robert B; Weaver, Scott C; Estrada-Franco, Jose G
2012-01-01
Venezuelan equine encephalitis virus (VEEV) has been the causative agent for sporadic epidemics and equine epizootics throughout the Americas since the 1930s. In 1969, an outbreak of Venezuelan equine encephalitis (VEE) spread rapidly from Guatemala and through the Gulf Coast region of Mexico, reaching Texas in 1971. Since this outbreak, there have been very few studies to determine the northward extent of endemic VEEV in this region. This study reports the findings of serologic surveillance in the Gulf Coast region of Mexico from 2003-2010. Phylogenetic analysis was also performed on viral isolates from this region to determine whether there have been substantial genetic changes in VEEV since the 1960s. Based on the findings of this study, the Gulf Coast lineage of subtype IE VEEV continues to actively circulate in this region of Mexico and appears to be responsible for infection of humans and animals throughout this region, including the northern State of Tamaulipas, which borders Texas.
Venezuelan Equine Encephalitis Virus Activity in the Gulf Coast Region of Mexico, 2003–2010
Adams, A. Paige; Navarro-Lopez, Roberto; Ramirez-Aguilar, Francisco J.; Lopez-Gonzalez, Irene; Leal, Grace; Flores-Mayorga, Jose M.; Travassos da Rosa, Amelia P. A.; Saxton-Shaw, Kali D.; Singh, Amber J.; Borland, Erin M.; Powers, Ann M.; Tesh, Robert B.; Weaver, Scott C.; Estrada-Franco, Jose G.
2012-01-01
Venezuelan equine encephalitis virus (VEEV) has been the causative agent for sporadic epidemics and equine epizootics throughout the Americas since the 1930s. In 1969, an outbreak of Venezuelan equine encephalitis (VEE) spread rapidly from Guatemala and through the Gulf Coast region of Mexico, reaching Texas in 1971. Since this outbreak, there have been very few studies to determine the northward extent of endemic VEEV in this region. This study reports the findings of serologic surveillance in the Gulf Coast region of Mexico from 2003–2010. Phylogenetic analysis was also performed on viral isolates from this region to determine whether there have been substantial genetic changes in VEEV since the 1960s. Based on the findings of this study, the Gulf Coast lineage of subtype IE VEEV continues to actively circulate in this region of Mexico and appears to be responsible for infection of humans and animals throughout this region, including the northern State of Tamaulipas, which borders Texas. PMID:23133685
30 CFR 250.150 - How do I name facilities and wells in the Gulf of Mexico Region?
Code of Federal Regulations, 2014 CFR
2014-07-01
... 30 Mineral Resources 2 2014-07-01 2014-07-01 false How do I name facilities and wells in the Gulf of Mexico Region? 250.150 Section 250.150 Mineral Resources BUREAU OF SAFETY AND ENVIRONMENTAL... name facilities and wells in the Gulf of Mexico Region? (a) Assign each facility a letter designation...
30 CFR 250.150 - How do I name facilities and wells in the Gulf of Mexico Region?
Code of Federal Regulations, 2013 CFR
2013-07-01
... 30 Mineral Resources 2 2013-07-01 2013-07-01 false How do I name facilities and wells in the Gulf of Mexico Region? 250.150 Section 250.150 Mineral Resources BUREAU OF SAFETY AND ENVIRONMENTAL... name facilities and wells in the Gulf of Mexico Region? (a) Assign each facility a letter designation...
30 CFR 250.150 - How do I name facilities and wells in the Gulf of Mexico Region?
Code of Federal Regulations, 2012 CFR
2012-07-01
... 30 Mineral Resources 2 2012-07-01 2012-07-01 false How do I name facilities and wells in the Gulf of Mexico Region? 250.150 Section 250.150 Mineral Resources BUREAU OF SAFETY AND ENVIRONMENTAL... name facilities and wells in the Gulf of Mexico Region? (a) Assign each facility a letter designation...
30 CFR 250.150 - How do I name facilities and wells in the Gulf of Mexico Region?
Code of Federal Regulations, 2010 CFR
2010-07-01
... 30 Mineral Resources 2 2010-07-01 2010-07-01 false How do I name facilities and wells in the Gulf of Mexico Region? 250.150 Section 250.150 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT... and wells in the Gulf of Mexico Region? (a) Assign each facility a letter designation except for those...
30 CFR 250.150 - How do I name facilities and wells in the Gulf of Mexico Region?
Code of Federal Regulations, 2011 CFR
2011-07-01
... 30 Mineral Resources 2 2011-07-01 2011-07-01 false How do I name facilities and wells in the Gulf of Mexico Region? 250.150 Section 250.150 Mineral Resources BUREAU OF OCEAN ENERGY MANAGEMENT...) § 250.150 How do I name facilities and wells in the Gulf of Mexico Region? (a) Assign each facility a...
Atmospheric Science Data Center
2014-05-15
article title: Gulf of Mexico Oil Slick View ... 22, 2010, the Deepwater Horizon oil platform in the Gulf of Mexico sank in nearly 1,500 meters (4,900 feet) of water after an explosion ... appear lighter blue on the darker blue waters of the Gulf of Mexico. Some clouds are visible in the extreme lower left corner of the image. ...
INTEGRATED COASTAL MONITORING PROGRAM FOR THE GULF OF MEXICO
The Gulf of Mexico Program (GMP) Office in cooperation with Gulf State agencies, EPA Regions 4 and 6, EPA's Office of Water and Office of Research and Development (ORD), and the GMP principal partners are developing an integrated coastal monitoring program for the Gulf of Mexico....
Synthesis of Seafood Catch, Distribution, and Consumption Patterns in the Gulf of Mexico Region
DOE Office of Scientific and Technical Information (OSTI.GOV)
Steimle and Associates, Inc.
The purpose of this task was to gather and assemble information that will provide a synthesis of seafood catch, distribution and consumption patterns for the Gulf of Mexico (GOM) region. This task was part of a U.S. Department of Energy (DOE)-sponsored project entitled ''Environmental and Economic Assessment of Discharges from Gulf of Mexico Region Oil and Gas Operations.'' Personal interviews were conducted with a total of 905 recreational fishermen and 218 commercial fishermen (inclusive of shrimpers, crabbers, oystermen and finfishermen) in Louisiana and Texas using survey questionnaires developed for the study. Results of these interviews detail the species and quantitiesmore » caught, location of catch, mode of fishing, distribution of catch, family consumption patterns and demographics of the fishermen.« less
Atmospheric Science Data Center
2014-05-15
article title: Continued Spread of Gulf of Mexico Oil Slick View ... passed over the Deepwater Horizon oil slick in the Gulf of Mexico on May 8, 2010, at approximately 16:50 UTC (11:50 a.m. local time), then ...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-03-08
... the Gulf of Mexico; Gulf of Mexico Fishery Management Council; Public Meeting AGENCY: National Marine... of Gulf of Mexico Fishery Management Council Spanish Mackerel and Cobia Stock Assessment Review Workshop. SUMMARY: Independent peer review of Gulf of Mexico Spanish Mackerel and Cobia stocks will be...
Climate Change in U.S. South Atlantic, Gulf of Mexico and Caribbean Fisheries Regions
NASA Astrophysics Data System (ADS)
Roffer, M. A.; Hernandez, D. L.; Lamkin, J. T.; Pugliese, R.; Reichert, M.; Hall, C.
2016-02-01
A review of the recent evidence that climate change is affecting marine ecosystems in the U.S. fishery management zones of the South Atlantic, Gulf of Mexico and Caribbean regions will be presented. This will include affects on the living marine resources (including fish, invertebrates, marine mammals and turtles), fisheries, habitat and people. Emphasis will be given on the effects that impact managed species and the likely new challenges that they present to fishery managers. The evidence is being derived from the results of the "Climate Variability and Fisheries Workshop: Setting Research Priorities for the Gulf of Mexico, South Atlantic, and Caribbean Regions," October 26-28, 2015 in St. Petersburg Beach, Florida. Commonalities and regional differences will be presented in terms of how climate variability is likely to impact distribution, catch, catchability, socioeconomics, and management.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-09-12
.... 090206140-91081-03] RIN 0648-XC227 Reef Fish Fishery of the Gulf of Mexico; Gulf of Mexico Individual... red snapper and grouper/tilefish components of the reef fish fishery in the Gulf of Mexico (Gulf), the... INFORMATION: The reef fish fishery of the Gulf of Mexico is managed under the Fishery Management Plan for Reef...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-10-18
.... 040205043-4043-01] RIN 0648-XA766 Gulf of Mexico Reef Fish Fishery; Closure of the 2011 Gulf of Mexico... the commercial sector for greater amberjack in the exclusive economic zone (EEZ) of the Gulf of Mexico... Reef Fish Resources of the Gulf of Mexico (FMP). The FMP was prepared by the Gulf of Mexico Fishery...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-03-05
.... 120417412-2412-01] RIN 0648-XC510 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Gulf of Mexico Reef Fish Fishery; 2013 Accountability Measure for Gulf of Mexico Commercial Gray Triggerfish... measure (AM) for commercial gray triggerfish in the Gulf of Mexico (Gulf) reef fish fishery for the 2013...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-10-18
... Drum, Reef Fish, Shrimp, and Coral and Coral Reefs Fishery Management Plans (Generic ACL Amendment) for... the Caribbean, Gulf of Mexico, and South Atlantic; Gulf of Mexico Reef Fish Fishery; South Atlantic... management unit in the Fishery Management Plan for Reef Fish Resources of the Gulf of Mexico (Reef Fish FMP...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-12-16
... Coral and Coral Reefs FMPs (Generic ACL Amendment) for purposes of review by the Secretary under the... the Caribbean, Gulf of Mexico, and South Atlantic; Gulf of Mexico Reef Fish Fishery; South Atlantic... the FMP for Reef Fish Resources of the Gulf of Mexico (Reef Fish FMP). DATES: This action is effective...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-07-15
... Large Coastal Shark and Gulf of Mexico Hammerhead Shark Management Groups AGENCY: National Marine... coastal sharks (LCS) and hammerhead sharks in the Gulf of Mexico region. This action is necessary because... aggregated LCS and Gulf of Mexico hammerhead shark management groups are closed effective 11:30 p.m. local...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-04-05
... Collection; Comment Request; Southeast Region Gulf of Mexico Red Snapper IFQ Program AGENCY: National Oceanic... Clearance Officer, Department of Commerce, Room 6616, 14th and Constitution Avenue, NW., Washington, DC...-Stevens Fishery Conservation and Management Act. NMFS manages the red snapper fishery in the waters of the...
Gulf Coast Ecosystem Restoration Task Force---Gulf of Mexico Ecosystem Science Assessment and Needs
Walker, Shelby; Dausman, Alyssa M.; Lavoie, Dawn L.
2012-01-01
The Gulf Coast Ecosystem Restoration Task Force (GCERTF) was established by Executive Order 13554 as a result of recommendations from “America’s Gulf Coast: A Long-term Recovery Plan after the Deepwater Horizon Oil Spill” by Secretary of the Navy Ray Mabus (Mabus Report). The GCERTF consists of members from 11 Federal agencies and representatives from each State bordering the Gulf of Mexico. The GCERTF was charged to develop a holistic, long-term, science-based Regional Ecosystem Restoration Strategy for the Gulf of Mexico. Federal and State agencies staffed the GCERTF with experts in fields such as policy, budgeting, and science to help develop the Strategy. The Strategy was built on existing authorities and resources and represents enhanced collaboration and a recognition of the shared responsibility among Federal and State governments to restore the Gulf Coast ecosystem. In this time of severe fiscal constraints, Task Force member agencies and States are committed to establishing shared priorities and working together to achieve them.As part of this effort, three staffers, one National Oceanic and Atmospheric Administration (NOAA) scientist and two U.S. Geological Survey (USGS) scientists, created and led a Science Coordination Team (SCT) to guide scientific input into the development of the Gulf of Mexico Regional Ecosystem Restoration Strategy. The SCT leads from the GCERTF coordinated more than 70 scientists from the Federal and State Task Force member agencies to participate in development of a restoration-oriented science document focused on the entire Gulf of Mexico, from inland watersheds to the deep blue waters. The SCT leads and scientists were organized into six different working groups based on expanded goals from the Mabus Report: Coastal habitats are healthy and resilient.Living coastal and marine resources are healthy, diverse, and sustainable.Coastal communities are adaptive and resilient.Storm buffers are sustainable.Inland habitats and
Federal Register 2010, 2011, 2012, 2013, 2014
2011-05-26
... ENVIRONMENTAL PROTECTION AGENCY [FRL-9311-5] Gulf of Mexico Citizen Advisory Committee; Request... Protection Agency (EPA). ACTION: Notice. SUMMARY: The U.S. Environmental Protection Agency (EPA), invites... environmental issues affecting the five Gulf of Mexico Coastal States. Members serve as representatives of...
Early results from the Northern Gulf of Mexico Ecosystem Change and Hazard Susceptibility Project
Brock, John C.; Lavoie, Dawn L.; Poore, Richard Z.
2011-01-01
The northern Gulf of Mexico coastal region and its diverse ecosystems are threatened by population and development pressure and by the impacts of rising sea level and severe storms such as the series of hurricanes that has impacted the northern Gulf in recent years. In response to the complex management issues facing the region, the U.S. Geological Survey (USGS) organized a multidisciplinary research program to coordinate the activities of USGS and other scientists working in the northern Gulf of Mexico region (fig. 1). The Northern Gulf of Mexico (NGOM) Ecosystem Change and Hazard Susceptibility Project aims to develop a thorough understanding of the dynamic coastal ecosystems on the northern Gulf coast, the impact of human activities on these ecosystems, and the vulnerability of ecosystems and human communities to more frequent and more intense hurricanes in the future. A special issue of Geo-Marine Letters published in December 2009 is devoted to early results of studies completed as part of this project. These studies, which have been conducted at sites throughout the northern Gulf region, from the Chandeleur Islands to Apalachicola Bay, have focused on three themes: (1) The underlying geologic framework that exerts controls over coastal processes (2) The impact of human activities on nearshore water quality (3) Hurricanes and associated effects
Local and regional species diversity of benthic Isopoda (Crustacea) in the deep Gulf of Mexico
NASA Astrophysics Data System (ADS)
Wilson, George D. F.
2008-12-01
Recent studies of deep-sea faunas considered the influence of mid-domain models in the distribution of species diversity and richness with depth. In this paper, I show that separating local diversity from regional species richness in benthic isopods clarifies mid-domain effects in the distribution of isopods in the Gulf of Mexico. Deviations from the randomised implied species ranges can be informative to understanding general patterns within the Gulf of Mexico. The isopods from the GoMB study contained 135 species, with a total of 156 species including those from an earlier study. More than 60 species may be new to science. Most families of deep-sea isopods (suborder Asellota) were present, although some were extremely rare. The isopod family Desmosomatidae dominated the samples, and one species of Macrostylis (Macrostylidae) was found in many samples. Species richness for samples pooled within sites ranged from 1 to 52 species. Because species in pooled samples were highly correlated with individuals, species diversity was compared across sites using the expected species estimator ( n=15 individuals, ES 15). Six depth transects had idiosyncratic patterns of ES 15, and transects with the greatest short-range variation in topography, such as basins and canyons, had the greatest short-range disparity. Basins on the deep slope did not have a consistent influence (i.e., relatively higher or lower than surrounding areas) on the comparative species diversity. ES 15 of all transects together showed a weak mid-domain effect, peaking around 1200-1500 m, with low values at the shallowest and deepest samples (Sigsbee Abyssal Plain); no longitudinal (east-west) pattern was found. The regional species pool was analyzed by summing the implied ranges of all species. The species ranges in aggregate did not have significant patterns across longitudes, and many species had broad depth ranges, suggesting that the isopod fauna of the Gulf of Mexico is well dispersed. The summed
Hall, B.D.; Aiken, G.R.; Krabbenhoft, D.P.; Marvin-DiPasquale, M.; Swarzenski, C.M.
2008-01-01
It is widely recognized that wetlands, especially those rich in organic matter and receiving appreciable atmospheric mercury (Hg) inputs, are important sites of methylmercury (MeHg) production. Extensive wetlands in the southeastern United States have many ecosystem attributes ideal for promoting high MeHg production rates; however, relatively few mercury cycling studies have been conducted in these environments. We conducted a landscape scale study examining Hg cycling in coastal Louisiana (USA) including four field trips conducted between August 2003 and May 2005. Sites were chosen to represent different ecosystem types, including: a large shallow eutrophic estuarine lake (Lake Pontchartrain), three rivers draining into the lake, a cypress-tupelo dominated freshwater swamp, and six emergent marshes ranging from a freshwater marsh dominated by Panicum hemitomon to a Spartina alterniflora dominated salt marsh close to the Gulf of Mexico. We measured MeHg and total Hg (THg) concentrations, and ancillary chemical characteristics, in whole and filtered surface water, and filtered porewater. Overall, MeHg concentrations were greatest in surface water of freshwater wetlands and lowest in the profundal (non-vegetated) regions of the lake and river mainstems. Concentrations of THg and MeHg in filtered surface water were positively correlated with the highly reactive, aromatic (hydrophobic organic acid) fraction of dissolved organic carbon (DOC). These results suggest that DOC plays an important role in promoting the mobility, transport and bioavailability of inorganic Hg in these environments. Further, elevated porewater concentrations in marine and brackish wetlands suggest coastal wetlands along the Gulf Coast are key sites for MeHg production and may be a principal source of MeHg to foodwebs in the Gulf of Mexico. Examining the relationships among MeHg, THg, and DOC across these multiple landscape types is a first step in evaluating possible links between key zones for
Federal Register 2010, 2011, 2012, 2013, 2014
2013-02-21
.... 121004516-3064-01] RIN 0648-BC64 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Gag Management Measures in the Gulf of Mexico AGENCY: National Marine... of Mexico (FMP), as prepared by the Gulf of Mexico Fishery Management Council (Council). If...
Why is Improving Water Quality in the Gulf of Mexico so Critical?
The EPA regional offices and the Gulf of Mexico Program work with Gulf States to continue to maximize the efficiency and utility of water quality monitoring efforts for local managers by coordinating and standardizing state and federal water quality data
NASA's Contributions to the Gulf of Mexico Alliance
NASA Technical Reports Server (NTRS)
Glorioso, Mark
2008-01-01
This viewgraph document reviews the contribution that NASA has made and the plans for future missions that will assist the mission of the Gulf of Mexico Alliance (GOMA). Specific reference to the work of the Stennis Space Center is reviewed. Some of the projects are: Coastal Online Assessment and Synthesis Tool (COAST), Regional Sediment Management, Coral Reef Early Warning System, Harmful Algal Bloom, Hypoxia, Land-Use and Land-Cover (LULC) Change from 1974-2008 around Mobile Bay, AL, Satellite Estimation of Suspended Particulate Loads in and around Mobile Bay, AL, Estimating Relative Nutrient Contributions of Agriculture and Forests Using MODIS Time Series, Coastal Marsh Monitoring for Persistent Saltwater Intrusion, Standardized Remote Sensing PRoduct for Water Clarity estimation within Gulf of Mexico Coastal Waters.
Mercury in the Gulf of Mexico: sources to receptors.
Harris, Reed; Pollman, Curtis; Landing, William; Evans, David; Axelrad, Donald; Hutchinson, David; Morey, Steven L; Rumbold, Darren; Dukhovskoy, Dmitry; Adams, Douglas H; Vijayaraghavan, Krish; Holmes, Christopher; Atkinson, R Dwight; Myers, Tom; Sunderland, Elsie
2012-11-01
Gulf of Mexico (Gulf) fisheries account for 41% of the U.S. marine recreational fish catch and 16% of the nation's marine commercial fish landings. Mercury (Hg) concentrations are elevated in some fish species in the Gulf, including king mackerel, sharks, and tilefish. All five Gulf states have fish consumption advisories based on Hg. Per-capita fish consumption in the Gulf region is elevated compared to the U.S. national average, and recreational fishers in the region have a potential for greater MeHg exposure due to higher levels of fish consumption. Atmospheric wet Hg deposition is estimated to be higher in the Gulf region compared to most other areas in the U.S., but the largest source of Hg to the Gulf as a whole is the Atlantic Ocean (>90%) via large flows associated with the Loop Current. Redistribution of atmospheric, Atlantic and terrestrial Hg inputs to the Gulf occurs via large scale water circulation patterns, and further work is needed to refine estimates of the relative importance of these Hg sources in terms of contributing to fish Hg levels in different regions of the Gulf. Measurements are needed to better quantify external loads, in-situ concentrations, and fluxes of total Hg and methylmercury in the water column, sediments, and food web. Copyright © 2012 Elsevier Inc. All rights reserved.
Geologic assessments and characterization of marine sand resources - Gulf of Mexico region
Williams, S. Jeffress; Cichon, Helana A.
1993-01-01
The U.S. Geological Survey conducts geologic surveys and research in marine areas of the United States and its territories and possessions. An objective in some of the investigations is locating and evaluating marine sand and gravel resources and interpretation of the origins of the sand body deposits. Results from such studies over the past 30 years show that many extremely large deposits are located close to expanding metropolitan areas, which have a need for aggregate materials for construction, and near-developed coastal areas, where beach replenishment may be used to mitigate coastal erosion. The Gulf of Mexico continental shelf from the Florida Peninsula to the Mexico border is an enormous area, but little attention has been directed on sand and gravel resources. Based on limited surveys, the total sand and gravel resources for the entire Gulf of Mexico is estimated to be 269 billion cubic meters. However, the sand tends to be fine-grained and is often mixed with mud; gravel deposits, except for shell, are mostly nonexistent.
Regional maps of subsurface geopressure gradients of the onshore and offshore Gulf of Mexico basin
Burke, Lauri A.; Kinney, Scott A.; Dubiel, Russell F.; Pitman, Janet K.
2013-01-01
The U.S. Geological Survey created a comprehensive geopressure-gradient model of the regional pressure system spanning the onshore and offshore Gulf of Mexico basin, USA. This model was used to generate ten maps that included (1) five contour maps characterizing the depth to the surface defined by the first occurrence of isopressure gradients ranging from 0.60 psi/ft to 1.00 psi/ft, in 0.10-psi/ft increments; and (2) five supporting maps illustrating the spatial density of the data used to construct the contour maps. These contour maps of isopressure-gradients at various increments enable the identification and quantification of the occurrence, magnitude, location, and depth of the subsurface pressure system, which allows for the broad characterization of regions exhibiting overpressured, underpressured, and normally pressured strata. Identification of overpressured regions is critical for exploration and evaluation of potential undiscovered hydrocarbon accumulations based on petroleum-generation pressure signatures and pressure-retention properties of reservoir seals. Characterization of normally pressured regions is essential for field development decisions such as determining the dominant production drive mechanisms, evaluating well placement and drainage patterns, and deciding on well stimulation methods such as hydraulic fracturing. Identification of underpressured regions is essential for evaluating the feasibility of geological sequestration and long-term containment of fluids such as supercritical carbon dioxide for alternative disposal methods of greenhouse gases. This study is the first, quantitative investigation of the regional pressure systems of one of the most important petroleum provinces in the United States. Although this methodology was developed for pressure studies in the Gulf of Mexico basin, it is applicable to any basin worldwide.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-07-20
.... 110707375-1374-01] RIN 0648-BB07 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Stone Crab Fishery of the Gulf of Mexico; Removal of Regulations AGENCY: National Marine Fisheries Service (NMFS... Gulf of Mexico (FMP) and remove its implementing regulations, as requested by the Gulf of Mexico...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-12-02
... environmental documents prepared for OCS mineral proposals by the Gulf of Mexico OCS Region. SUMMARY: BOEM, in... DEPARTMENT OF THE INTERIOR Bureau of Ocean Energy Management [MMAA104000] Environmental Documents Prepared for Oil, Gas, and Mineral Operations by the Gulf of Mexico Outer Continental Shelf (OCS) Region...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-08-06
... Environmental Documents Prepared for OCS Mineral Proposals by the Gulf of Mexico OCS Region. SUMMARY: BOEM, in... DEPARTMENT OF THE INTERIOR Bureau of Ocean Energy Management [MMAA104000] Environmental Documents Prepared for Oil, Gas, and Mineral Operations by the Gulf of Mexico Outer Continental Shelf (OCS) Region...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-05-10
... Environmental Documents Prepared for OCS Mineral Proposals by the Gulf of Mexico OCS Region. SUMMARY: BOEM, in... DEPARTMENT OF THE INTERIOR Bureau of Ocean Energy Management MMAA104000 Environmental Documents Prepared for Oil, Gas, and Mineral Operations by the Gulf of Mexico Outer Continental Shelf (OCS) Region...
A study of satellite-derived moisture with emphasis on the Gulf of Mexico
NASA Technical Reports Server (NTRS)
Schreiner, Anthony J.; Hayden, Christopher M.; Paris, Cecil A.
1992-01-01
Visible-Infrared Spin Scan Radiometer (VISSR) Atmospheric Sounder (VAS) moisture retrievals are compared to the National Meteorological Center Regional Analysis and Forecast System (RAFS) 12-h forecast and to 1200 UTC rawinsondes over the U.S. and the Gulf of Mexico on a daily basis for nearly 1.5 years. The principal objective is to determine what information the current moisture retrievals add to that available from the RAFS and surface data. The data are examined from the climatological perspective, that is, total precipitable water over the seasons for three geographical regions, and also for synoptic applications, that is, vertical and horizontal resolution. VAS retrievals are found to be systematically too moist at higher values. The variance of the VAS soundings more closely agrees with the rawinsonde at locations around the Gulf of Mexico than the RAFS. An examination of a case (6 June 1989) over the Gulf of Mexico region comparing three layers of VAS-derived moisture to the RAFS forecast shows the former capable of outperforming the latter in both the horizontal and, to some extent, the vertical frame of reference.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Bartok, P.
1993-02-01
A review of the pre-breakup geology of west-central Pangea, comprised of northern South America, Gulf of Mexico and West Africa, combined with a study of the Mesozoic rift trends of the region confirms a relation between the rift systems and the underlying older grain of deformation. The pre-breakup analysis focuses attention on the Precambrian, Early Paleozoic and Late Paleozoic tectonic events affecting the region and assumes a Pindell fit. Two Late Precambrian orogenic belts are observed in the west central Pangea. Along the northern South American margin and Yucatan a paleo northeast trending Pan-African aged fold belt is documented. Amore » second system is observed along West Africa extending from the High Atlas to the Mauritanides and Rockelides. During the Late Paleozoic, renewed orogenic activity, associated with the Gondwana/Laurentia suture, affected large segments of west central Pangea. The general trend of the system is northeast-southwest and essentially parallels the Gyayana Shield, West African, and eastern North American cratons. Mesozoic rifting closely followed either the Precambrian trends or the Late Paleozoic orogenic belt. The Triassic component focuses along the western portions of the Gulf of Mexico continuing into eastern Mexico and western South America. The Jurassic rift trend followed along the separation between Yucatan and northern South America. At Lake Maracaibo the Jurassic rift system eventually overlaps the Triassic rifts. The Jurassic rift resulted in the [open quotes]Hispanic Corridor[close quotes] that permitted Tethyan and Pacific marine faunas to mix at a time when the Gulf of Mexico underwent continental sedimentation.« less
ECOLOGICAL CONDITION OF ESTUARIES IN THE GULF OF MEXICO
The Gulf of Mexico is a vast natural resource that encompasses the coastal areas of western Florida, Alabama, Mississippi, Louisiana and Texas, as well as a portion of Mexico. Many estuaries flow into the Gulf of Mexico and serve as nursery grounds for fish, habitat for a wide va...
NASA Astrophysics Data System (ADS)
McLaughlin, R. J.
2007-05-01
Finding and exploiting oil and gas resources in the ultra-deepwater areas of the Gulf of Mexico is occurring at an accelerated pace. Huge new discoveries have recently been made in a large geological structure known as the Lower Tertiary Wilcox Trend that is located in the U.S.-Mexico Maritime Boundary Region. These discoveries have been projected to boost current U.S. oil reserves by as much as fifty percent. Technological advancements and market conditions have finally reached a point where production of hydrocarbons in these ultra-deepwaters is commercially feasible. However, due to the transboundary characteristics of many of these hydrocarbons, some form of bi-national cooperation is necessary to effectively manage the shared resources, protect the oceanic environment and comply with evolving norms of international law before commercial production can begin. Well established international customary norms prohibit unilateral exploitation of transboundary oil and gas resources. Consequently, it is important for the two nations to address these issues today rather than putting them off until they become a critical political problem in their bilateral relations. The United States and Mexico have already agreed to temporarily cooperate in the exploration of potential oil and gas resources in one portion of the Gulf of Mexico known as the Western Gap. This is an area in the center of the Gulf of Mexico that falls outside of the 200 mile exclusive economic zones of the two nations. After scientific studies provided evidence that the Western Gap qualifies as part of each nation's extended continental shelf, a Delimitation Treaty was negotiated and ratified in 2000. This Treaty gave Mexico access to about 62 percent of the Gap, while the U.S. retained about 38 percent. The Treaty also established a 2.8 nautical mile buffer zone along the new boundary to account for the possibility that straddling oil and gas reservoirs may be located there. The nations agreed to a ten
Trends in marine debris in the U.S. Caribbean and the Gulf of Mexico, 1996-2003
Ribic, Christine; Seba B. Sheavly,; Rugg, David J.
2011-01-01
Marine debris is a widespread and globally recognized problem. Sound information is necessary to understand the extent of the problem and to inform resource managers and policy makers about potential mitigation strategies. Although there are many short-term studies on marine debris, a longer-term perspective and the ability to compare among regions has heretofore been missing in the U.S. Caribbean and the Gulf of Mexico. We used data from a national beach monitoring program to evaluate and compare amounts, composition, and trends of indicator marine debris in the U.S. Caribbean (Puerto Rico and the U.S. Virgin Islands) and the Gulf of Mexico from 1996 to 2003. Indicator items provided a standardized set that all surveys collected; each was assigned a probable source: ocean-based, land-based, or general-source. Probable ocean-based debris was related to activities such as recreational boating/fishing, commercial fishing and activities on oil/gas platforms. Probable land-based debris was related to land-based recreation and sewer systems. General-source debris represented plastic items that can come from either ocean- or land-based sources; these items were plastic bags, strapping bands, and plastic bottles (excluding motor oil containers). Debris loads were similar between the U.S. Caribbean and the western Gulf of Mexico; however, debris composition on U.S. Caribbean beaches was dominated by land-based indicators while the western Gulf of Mexico was dominated by ocean-based indicators. Beaches along the eastern Gulf of Mexico had the lowest counts of debris; composition was dominated by land-based indicators, similar to that found for the U.S. Caribbean. Debris loads on beaches in the Gulf of Mexico are likely affected by Gulf circulation patterns, reducing loads in the eastern Gulf and increasing loads in the western Gulf. Over the seven years of monitoring, we found a large linear decrease in total indicator debris, as well as all source categories, for the U
Deep Seismic Structure of the Texas-Gulf of Mexico Passive Margin
NASA Astrophysics Data System (ADS)
Pulliam, J.; Gurrola, H.
2013-12-01
The Texas-Gulf of Mexico region has witnessed a wide range of tectonic processes, including deformation due to orogeny, continental collision and rifting. Artifacts of these processes are likely to remain at lithospheric depths beneath the region but, until recently, the tools needed to examine structures at mantle depths were not available. With the passage of the EarthScope's USArray stations and the completion of a targeted broadband deployment, new images of the region's lithosphere have emerged. These images reveal lithospheric-scale anomalies that correlate strongly with surface features, such as a large fast anomaly that corresponds to the southern extent of the Laurentia (or 'Great Plains') craton and a large slow anomaly associated with the Southern Oklahoma Aulacogen. Other features that would not have been expected based on surface tectonics include a slow layer that we interpret to be a shear zone at the base of the cratonic root and the transitional continental lithosphere, and a zone that is bounded at its top and bottom by discontinuities and high levels of seismic anisotropy. Additionally a high velocity body underlying the Gulf Coast Plains may mark delaminating lower crust. If true it provides indirect evidence that active rifting best describes the process that led to the opening of the Gulf of Mexico. These new results are based upon the analysis of 326 USArray broadband seismic stations and a 23-station broadband deployment across Texas' passive margin, from Matagorda Island, a barrier island in the Gulf of Mexico, to Johnson City, TX, on the relatively undisturbed Proterozoic crust of central Texas.
77 FR 39998 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2012-07-06
... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery... Atmospheric Administration (NOAA), Commerce. ACTION: Notice of a public meeting. SUMMARY: The Gulf of Mexico... Ludwig Lane, Grand Isle, LA 70358; telephone: (985) 787-2163. Council address: Gulf of Mexico Fishery...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-08-12
... the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Exempted... the Gulf of Mexico (Gulf) off Louisiana, is intended to more closely monitor populations of red snapper and other reef fish to ensure public health and seafood quality are maintained. DATES: Comments...
75 FR 39495 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-07-09
.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory.... Beach Blvd, Gulfport, MS 39501. Council address: Gulf of Mexico Fishery Management Council, 2203 North... Executive Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY...
77 FR 8810 - Gulf of Mexico Fishery Management Council; Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-02-15
.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory... East Beach Blvd., Gulfport, MS 39501. Council address: Gulf of Mexico Fishery Management Council, 2203..., Deputy Executive Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630...
75 FR 7444 - Gulf of Mexico Fishery Management Council; Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-02-19
.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory...., Orange Beach, AL 36561. Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois... Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY INFORMATION...
78 FR 62587 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-10-22
... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery... Atmospheric Administration (NOAA), Commerce. ACTION: Notice of a public meeting of the Gulf of Mexico Fishery Management Council. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will hold a meeting of...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-23
... the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Exempted... and retention. This study, to be conducted in the exclusive economic zone (EEZ) of the Gulf of Mexico (Gulf), is intended to better document the age structure and life history of fish associated with...
77 FR 25144 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2012-04-27
... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery... Atmospheric Administration (NOAA), Commerce. ACTION: Notice of a public meeting. SUMMARY: The Gulf of Mexico..., May 17, 2012. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery Management Council...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-01-12
.... 100217095-1780-03] RIN 0648-AY56 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Amendment 32 AGENCY: National Marine Fisheries Service (NMFS), National... Mexico (Amendment 32) prepared by the Gulf of Mexico Fishery Management Council (Council). During the...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-02-24
... . SUPPLEMENTARY INFORMATION: The Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils, in... Workshops are appointed by the Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils and NOAA Fisheries Southeast Regional Office, HMS Management Division, and Southeast Fisheries Science...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-02-28
...: The Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils, in conjunction with... Workshops are appointed by the Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils and NOAA Fisheries Southeast Regional Office, HMS Management Division, and Southeast Fisheries Science...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-11-08
.... 110321211-1289-02] RIN 0648-BA94 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Gag Grouper Closure Measures AGENCY: National Marine Fisheries Service... interim measures to reduce overfishing of gag in the Gulf of Mexico (Gulf) implemented by a temporary rule...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-02-26
.... 040205043-4043-01] RIN 0648-XU38 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Reopening of the Gulf Group King Mackerel East Coast Subzone AGENCY..., little tunny, and, in the Gulf of Mexico only, dolphin and bluefish) is managed under the Fishery...
Gulf of Mexico Air/Sea Interaction: Measurements and Initial Data Characterization
NASA Astrophysics Data System (ADS)
MacDonald, C.; Huang, C. H.; Roberts, P. T.; Bariteau, L.; Fairall, C. W.; Gibson, W.; Ray, A.
2011-12-01
Corporate, government, and university researchers collaborated to develop an atmospheric boundary layer environmental observations program on an offshore platform in the Gulf of Mexico. The primary goals of this project were to provide data to (1) improve our understanding of boundary layer processes and air-sea interaction over the Gulf of Mexico; (2) improve regional-scale meteorological and air quality modeling; and (3) provide a framework for advanced offshore measurements to support future needs such as emergency response, exploration and lease decisions, wind energy research and development, and meteorological and air quality forecasting. In October 2010, meteorological and oceanographic sensors were deployed for an extended period (approximately 12 months) on a Chevron service platform (ST 52B, 90.5W, 29N) to collect boundary layer and sea surface data sufficient to support these objectives. This project has significant importance given the large industrial presence in the Gulf, sizeable regional population nearby, and the recognized need for precise and timely pollutant forecasts. Observations from this project include surface meteorology; sodar marine boundary layer winds; microwave radiometer profiles of temperature, relative humidity, and liquid water; ceilometer cloud base heights; water temperature and current profiles; sea surface temperature; wave height statistics; downwelling solar and infrared radiation; and air-sea turbulent momentum and heat fluxes. This project resulted in the collection of an unprecedented set of boundary layer measurements over the Gulf of Mexico that capture the range of meteorological and oceanographic interactions and processes that occur over an entire year. This presentation will provide insight into the logistical and scientific issues associated with the deployment and operations of unique measurements in offshore areas and provide results from an initial data analysis of boundary layer processes over the Gulf of
78 FR 9888 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-02-12
.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Artificial... Thursday, February 28, 2013. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery Management... INFORMATION CONTACT: Dr. John Froeschke, Fishery Biologist- Statistician; Gulf of Mexico Fishery Management...
78 FR 9372 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-02-08
.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Private.... on Tuesday, February 26, 2013. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery... INFORMATION CONTACT: Dr. John Froeschke, Fishery Biologist- Statistician; Gulf of Mexico Fishery Management...
76 FR 28733 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-05-18
.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a Web based meeting of the... the Gulf of Mexico Fishery Management Council's Web site at http://www.gulfcouncil.org for instructions. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100...
75 FR 7444 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-02-19
.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene a web based meeting of the... via internet. Please go to the Gulf of Mexico Fishery Management Council's website at www.gulfcouncil.org for instructions. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue...
75 FR 80041 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-12-21
...: The Gulf of Mexico Fishery Management Council will convene a public meeting of the Outreach and... be held at the Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100, Tampa, FL 33607. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100...
76 FR 80343 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-12-23
... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene a meeting of the...: The meeting will be held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607, telephone: (813) 348-1630. Council address: Gulf of Mexico Fishery...
75 FR 39495 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-07-09
.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Standing and Special... the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607; telephone: (813) 348-1630. Council address: Gulf of Mexico Fishery Management Council, 2203 N. [[Page 39496...
76 FR 37328 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-06-27
... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc...) 348-1630. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100, Tampa, FL 33607. FOR FURTHER INFORMATION CONTACT: Dr. Assane Diagne, Economist; Gulf of Mexico Fishery...
75 FR 19941 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-04-16
...: The Gulf of Mexico Fishery Management Council will convene a public meeting of its Outreach and... will be held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607; telephone: (813) 348-1630. Council address: Gulf of Mexico Fishery Management Council...
Metals in Bone Tissue of Antillean Manatees from the Gulf of Mexico and Chetumal Bay, Mexico.
Romero-Calderón, Ana G; Morales-Vela, Benjamin; Rosíles-Martínez, René; Olivera-Gómez, León D; Delgado-Estrella, Alberto
2016-01-01
Concentrations of seven metals (As, Cd, Cr, Cu, Pb, Ni, and Zn) were analyzed in 33 bone tissue samples of Antillean manatees (Trichechus manatus manatus) found dead in lagoons and rivers of Tabasco and Campeche in the Gulf of Mexico and Chetumal Bay in the Caribbean region. The concentrations of Cr, Cu, Pb, and Zn were significantly different between regions, with greater levels found in the Gulf of Mexico group than in the Mexican Caribbean group (p < 0.05). Pb concentrations differed significantly between adults and calves. No differences were observed between sexes. Metal concentrations detected in the manatee bones were higher than most of those reported for bones in other marine mammals around the world. Future studies are necessary to establish whether the metal concentrations represent a risk to the health of the species.
75 FR 74008 - Gulf of Mexico Fishery Management Council; Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-11-30
.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a public meeting of the Florida.... Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL... Florida/Alabama group is part of a three unit Habitat Protection Advisory Panel (AP) of the Gulf of Mexico...
76 FR 58783 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-22
.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Reef Fish Advisory.... on Friday, October 14, 2011. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607. Council address: Gulf of Mexico...
76 FR 37063 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-06-24
... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Red... held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607; telephone: (813) 348-1630. Council address: Gulf of Mexico Fishery Management Council, 2203 N...
76 FR 56171 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-12
.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Headboat... meeting will be held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607; telephone: (813) 348-1630. Council address: Gulf of Mexico Fishery Management Council...
Paz-Ríos, Carlos E; Ardisson, Pedro-Luis
2013-01-01
The southeast region of the Gulf of Mexico is considered to be biologically important, because it is a connection and transition zone between the Caribbean and the Gulf of Mexico, harboring great marine biodiversity. Nevertheless, benthic amphipods have been poorly studied in the Mexican southeast sector of the Gulf of Mexico with few studies listing species. The aim of this study is to provide an update checklist of species for the Mexican southeast sector (based on literature review and records from the present study) as well as a brief zoogeographical analysis for the Gulf of Mexico amphipod fauna, putting them in context with the fauna on the tropical western Atlantic. Fifty-five species were listed for the Mexican southeast sector; 36 of them showed a geographical extension to the Yucatan continental shelf representing 23 new records for the Mexican southeast sector, nine for the southeast region and four for the Gulf of Mexico. Based on the zoogeographical analysis, there is support of the application of Carolinian and Caribbean zoogeographic provinces to amphipods in the Gulf of Mexico.
75 FR 69402 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-11-12
.... SUMMARY: The Gulf of Mexico Fishery Management Council in conjunction with the Gulf & South Atlantic...) 873-8675. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-XA028 Gulf of...
75 FR 11846 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-03-12
.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Reef Fish..., March 31 and conclude by 4:30 p.m. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery... FURTHER INFORMATION CONTACT: Dr. Assane Diagne, Economist; Gulf of Mexico Fishery Management Council...
ESTABLISHING A NATURE CONSERVANCY GULF OF MEXICO INITIATIVE MX974946
The Conservancy will initiate a three-year pilot program to create a Gulf of Mexico Initiative within TNC to coordinate and enhance site-based conservation work at priority Gulf coastal sites. TNC would hire an ecologist to serve as the director of TNC's Gulf of Mexico Initiative...
47 CFR 22.950 - Provision of service in the Gulf of Mexico Service Area (GMSA)
Code of Federal Regulations, 2011 CFR
2011-10-01
... purposes, the Gulf of Mexico Exclusive Zone (GMEZ) and the Gulf of Mexico Coastal Zone (GMCZ). This section... Zone. (2) Gulf of Mexico Coastal Zone. The geographical area within the Gulf of Mexico Service Area... unserved area licensing procedure for the GMEZ. (d) Operation within the Gulf of Mexico Coastal Zone (GMCZ...
Day, John W.; Yáñez-Arancibia, Alejandro; Cowan, James H.; Day, Richard H.; Twilley, Robert R.; Rybczyk, John R.
2013-01-01
Global climate change is important in considerations of integrated coastal management in the Gulf of Mexico. This is true for a number of reasons. Climate in the Gulf spans the range from tropical to the lower part of the temperate zone. Thus, as climate warms, the tropical temperate interface, which is currently mostly offshore in the Gulf of Mexico, will increasingly move over the coastal zone of the northern and eastern parts of the Gulf. Currently, this interface is located in South Florida and around the US-Mexico border in the Texas-Tamaulipas region. Maintaining healthy coastal ecosystems is important because they will be more resistant to climate change.
Federal Register 2010, 2011, 2012, 2013, 2014
2010-03-12
... the Caribbean, Gulf of Mexico, and South Atlantic; Amendment 10 to the Fishery Management Plan for..., Southeast Region, in collaboration with the Gulf of Mexico and South Atlantic Fishery Management Councils (Councils) intends to prepare an EIS to describe and analyze a range of alternatives for management actions...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-02-22
... Fishery of the Gulf of Mexico; Red Snapper Management Measures AGENCY: National Marine Fisheries Service... the Fishery Management Plan for the Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the Gulf of Mexico Fishery Management Council (Council). This proposed rule would increase the commercial...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-19
... the Caribbean, Gulf of Mexico, and South Atlantic; Amendment 11 to the Fishery Management Plan for...: NMFS, Southeast Region, in collaboration with the Gulf of Mexico and South Atlantic Fishery Management... management actions to be included in Amendment 11 to the Fishery Management Plan for the Spiny Lobster...
75 FR 75173 - Gulf of Mexico Executive Council Notice of Charter Renewal
Federal Register 2010, 2011, 2012, 2013, 2014
2010-12-02
... ENVIRONMENTAL PROTECTION AGENCY [FRL-9234-8] Gulf of Mexico Executive Council Notice of Charter... provisions of the Federal Advisory Committee Act (FACA), 5 U.S.C. App. 2, the Gulf of Mexico Executive... living resources of the Gulf of Mexico. FOR FURTHER INFORMATION CONTACT: Gloria Car, Designated Federal...
75 FR 81585 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-12-28
.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Reef Fish..., January 25, 2011, and conclude by 4 p.m. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery... address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100, Tampa, FL 33607. FOR...
Impact of iodine chemistry on coastal ozone levels at the Gulf of Mexico
NASA Astrophysics Data System (ADS)
Tuite, K.; Stutz, J.; Brockway, N.; Colosimo, S. F.; Tsai, J. Y.; Grossmann, K.; Alvarez, S. L.; Flynn, J. H., III; Erickson, M.; Caicedo, V.; Griffin, R. J.; Wallace, H. W., IV; Schulze, B.; Sheesley, R. J.; Usenko, S.; Yarwood, G.; Nopmongcol, U.
2016-12-01
Reactive iodine (Ix = I + IO) is known to destroy ozone through catalytic cycles in the marine boundary layer (MBL) and can thus have a significant impact on tropospheric ozone in coastal regions. As air quality standards for ozone become stricter, accurate background levels are increasingly important for the development of ozone reduction strategies. The Texas Gulf coast is an example for the significance of MBL background ozone, as onshore flows from the Gulf of Mexico contribute to the ozone levels in Houston and other coastal areas. The Gulf coast often experiences ozone mixing ratios below 20 ppb during summer onshore flow conditions, which are currently overestimated by regional and global air quality models. Modeling with the Comprehensive Air quality Model with extensions (CAMx) and GEOS-Chem including halogen chemistry identified iodine emissions from the Gulf of Mexico as a possible explanation. However, ambient measurements of Ix species for the Gulf of Mexico are needed to test this hypothesis and, if confirmed, refine models. We measured IO, O3, and other trace gases at the Gulf coast near Galveston, TX, using UCLA's long path DOAS instrument and a suite of in-situ instruments. During the study period from May 15 through July 12, 2016, several multi-day events with MBL ozone levels below 20 ppb were encountered. Here we present the observational data with a focus on time periods with onshore flow from the Gulf. A chemical steady state analysis will be used to assess whether the observed Ix mixing ratios can explain these low ozone mixing ratios. Our results will be compared to the CAMx and GEOS-Chem model simulations.
77 FR 40859 - Gulf of Mexico Fishery Management Council; Public Meetings; Correction
Federal Register 2010, 2011, 2012, 2013, 2014
2012-07-11
... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory... Ludwig Lane, Grand Isle, LA 70358; telephone: (985) 787-2163 Council address: Gulf of Mexico Fishery...
Proposed Gulf of Mexico Intensive Study on Carbon Fluxes
NASA Astrophysics Data System (ADS)
Coble, P. G.; Robbins, L.; Lohrenz, S.; Cai, W.
2009-05-01
The Gulf of Mexico is an ideal site for the study of land-ocean carbon cycle coupling processes. A recent synthesis suggests that Gulf of Mexico air-sea CO2 flux may dominate the net flux of the entire North American margin because of the Gulf's large size and strong carbon signals. Northern Gulf waters appear to be a strong local CO2 sink due to high primary productivity stimulated by river input of anthropogenic nutrients from the North American continent. Nutrient discharge from the Mississippi River has been implicated in widespread hypoxia on the shelf. The surface drainage system of the Gulf covers more than 60% of the U.S. and more than 40% of Mexico; thus, large-scale changes in land-use and water-management practices in both countries, as well as changes in temperature and rainfall due to climate change, will profoundly affect Gulf carbon fluxes. Nevertheless, major sources of uncertainty in the North American carbon budget remain because of largely unsampled areas, undocumented key fluxes, such as air-sea exchange of carbon dioxide, associated carbon fluxes, and poorly characterized control mechanisms. An intensive study in which the Gulf is considered as a whole system, including watersheds, margins, open Gulf of Mexico, overlying atmosphere, and underlying sediments, will be discussed. The study is best addressed using a three-pronged approach that incorporates remote sensing observations, field observations and experiments, and physical and biogeochemical modeling. Societal issues related to carbon management and land-use/land-change must be an integral part of such a study. International cooperation with Mexico, Canada, and Cuba will be essential for the success of this study.
76 FR 37064 - Gulf of Mexico Fishery Management Council (Council); Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-06-24
... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a public meeting via webinar... meeting will be held via webinar. Council address: Gulf of Mexico Fishery Management Council, 2203 North... Executive Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY...
NASA Astrophysics Data System (ADS)
Simoniello, Christina; Jochens, Ann E.; Howard, Matthew K.; Swaykos, Joseph; Levin, Douglas R.; Stone, Debbi; Kirkpatrick, Barbara; Kobara, Shinichi
2011-06-01
The Gulf of Mexico Coastal Ocean Observing System Regional Association (GCOOS-RA) works to enhance our ability to collect, deliver and use ocean information. The GCOOS-RA Education and Outreach Council works to bring together industry, governments, academia, formal and informal educators, and the public to assess regional needs for coastal ocean information, foster cooperation, and increase utility of the data. Examples of data products in varying stages of development are described, including web pages for recreational boaters and fishermen, novel visualizations of storm surge, public exhibits focused on five Gulf of Mexico Priority Issues defined by the Gulf of Mexico Alliance, a Harmful Algae Bloom warning system, the Basic Observation Buoy project designed to engage citizen scientists in ocean monitoring activities, and the GCOOS Data Portal, instrumental in Deepwater Horizon mitigation efforts.
Coastal Forests of the Gulf of Mexico: A Description and Some Thoughts on Their Conservation
W. C. Barrow; L. A. Johnson Randall; M. S. Woodrey; J. Cox; E. Ruelas I.; C. M. Riley; R. B. Hamilton; C. Eberly
2005-01-01
Millions of Nearctic-Neotropical landbirds move through the coastal forests of the Gulf of Mexico each spring and autumn as they migrate across and around the gulf. Migration routes in the gulf region are not static—they shift year to year and season to season according to prevailing wind patterns. Given the dynamic nature of migration routes, coastal forests...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-11-02
.... 110819519-1640-02] RIN 0648-BB22 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Red Grouper Management Measures AGENCY: National Marine Fisheries Service... the Fishery Management Plan for the Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the...
Gulf of Mexico Hypoxia dataset
Gulf of Mexico cruise, nearshore and CTD data collected by the USEPA during 2002 - 2008This dataset is associated with the following publications:Pauer , J., T. Feist, A. Anstead, P. DePetro, W. Melendez, J. Lehrter , M. Murrell , X. Zhang, and D. Ko. A modeling study examining the impact of nutrient boundaries on primary production on the Louisiana Continental Shelf. ECOLOGICAL MODELLING. Elsevier Science BV, Amsterdam, NETHERLANDS, 328: 136-147, (2016).Feist, T., J. Pauer , W. Melendez, J. Lehrter , P. DePetro, K. Rygwelski , D. Ko, and R. Kreis. Modeling the relative importance of nutrient and carbon loads, boundary fluxes, and sediment fluxes on Gulf of Mexico hypoxia. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 50(16): 88713-8721, (2016).
Hydrocarbon reservoirs of Gulf of Mexico: spatial and temporal distribution
DOE Office of Scientific and Technical Information (OSTI.GOV)
Ray, P.K.
1988-02-01
The statistical distribution of over 12,000 producible hydrocarbon reservoirs from various biostratigraphic intervals of the Gulf of Mexico is presented. The average number, thickness, volume, subsurface depth, and ecozone of depositional environments of the reservoirs are grouped according to biostratigraphic intervals, trends, and geographic areas. The upper Pliocene and Pleistocene reservoirs account for more than 77% of the total number. Within the Miocene trend, Bigenerina H in the western Gulf and Bigenerina A and Bigenerina 2 in the central Gulf show significant concentration of reservoirs. The average depth of production for all trends gets deeper, both from west and east,more » toward Ship Shoal-South Timbalier areas. The average thickness varies slightly between trends; however, variation between areas is more significant. A significant majority of the reservoirs of all trends in the entire Gulf is reported from the outer shelf-upper slope ecozones (E3 and E4). According to volume, the E3-E5 reservoirs can be classified into three groups; (a) larger than 10,000 acre-ft/reservoir, (b) 5000 to 10,000 acre-ft/reservoir, and (c) smaller than 5000 acre-ft/reservoir. The reservoirs of the middle Miocene trend of the central Gulf and lower Miocene of the western Gulf fall into group a, those of other trends of the western Gulf into group b, and the post-Amphistegina E reservoirs of the central Gulf into group c. Information obtained from this study, in combination with regional and detailed geological information, provides valuable input in further exploration of the matured shelf and scantily explored slope of the Gulf of Mexico.« less
76 FR 60807 - Gulf of Mexico Fishery Management Council; Public Meeting; Correction
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-30
... public meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Reef... conclude by 12 p.m. on Friday, October 14, 2011. ADDRESSES: The meeting will be held at the Gulf of Mexico... INFORMATION CONTACT: Mr. Steven Atran, Population Dynamics Statistician; Gulf of Mexico Fishery Management...
78 FR 48653 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-08-09
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Meeting of the Gulf of Mexico Fishery Management Council. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will hold...
78 FR 61842 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-10-04
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Meeting of the Gulf of Mexico Fishery Management Council. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will hold...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-12-27
...), Commerce. ACTION: Final changes to management measures. SUMMARY: NMFS establishes funding responsibilities... the Fishery Management Plan for the Shrimp Fishery of the Gulf of Mexico (FMP), as prepared by the Gulf of Mexico (Gulf) Fishery Management Council (Council). Newer and more efficient ELB units have...
78 FR 12294 - Gulf of Mexico Fishery Management Council (Council); Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-02-22
... meetings. SUMMARY: The Gulf of Mexico and South Atlantic Fishery Management Councils will convene a Science.... to 4 p.m. EST on Tuesday, March 12, 2013. ADDRESSES: The meeting will be held at the Gulf of Mexico.... Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL...
78 FR 42755 - Gulf of Mexico Fishery Management Council; Public Hearings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-07-17
... Mexico Fishery Management Council; Public Hearings AGENCY: National Marine Fisheries Service (NMFS...: The Gulf of Mexico Fishery Management Council (Council) will hold public hearings for Coastal... through Friday August 15, 2013 at ten locations throughout the Gulf of Mexico. The public hearings will...
78 FR 33070 - Gulf of Mexico Fishery Management Council; Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2013-06-03
... Mexico Fishery Management Council; Public Meetings AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene a public meeting. DATES: The...; telephone: (850) 433-3336. Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois...
75 FR 29724 - Gulf of Mexico Fishery Management Council; Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-05-27
... Mexico Fishery Management Council; Public Meetings AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene public meetings. DATES: The..., 1600 E. Beach Blvd, Gulfport, MS 39501. Council address: Gulf of Mexico Fishery Management Council...
Binational collaboration to study Gulf of Mexico's harmful algae
NASA Astrophysics Data System (ADS)
Soto, Inia; Hu, Chuanmin; Steidinger, Karen; Muller-Karger, Frank; Cannizzaro, Jennifer; Wolny, Jennifer; Cerdeira-Estrada, Sergio; Santamaria-del-Angel, Eduardo; Tafoya-del-Angel, Fausto; Alvarez-Torres, Porfirio; Herrera Silveira, Jorge; Allen, Jeanne
2012-01-01
Blooms of the toxic marine dinoflagellate Karenia brevis cause massive fish kills and other public health and economic problems in coastal waters throughout the Gulf of Mexico [Steidinger, 2009]. These harmful algal blooms (HABs) are a gulf-wide problem that require a synoptic observing system for better serving decision-making needs. The major nutrient sources that initiate and maintain these HABs and the possible connectivity of blooms in different locations are important questions being addressed through new collaborations between Mexican and U.S. researchers and government institutions. These efforts were originally organized under the U.S./Mexico binational partnership for the HABs Observing System (HABSOS), led by the U.S. Environmental Protection Agency's Gulf of Mexico Program (EPAGMP) and several agencies in Veracruz, Mexico, since 2006. In 2010 these efforts were expanded to include other Mexican states and institutions with the integrated assessment and management of the Gulf of Mexico Large Marine Ecosystem (GoMLME) program sponsored by the Global Environment Facility (GEF), the United Nations Industrial Development Organization (UNIDO), the Secretaría de Medio Ambiente y Recursos Naturales (SEMARNAT), and the National Oceanic and Atmospheric Administration (NOAA).
GULF OF MEXICO AQUATIC MORTALITY NETWORK (GMNET)
Five U.S. states share the northern coast of the Gulf, and each has a program to monitor mortalities of aquatic organisms (fish, shellfish, birds). However, each state has different standards, procedures, and documentation of mortality events. The Gulf of Mexico Aquatic Mortality...
Sargassum-associated mobile fauna communities in the Caribbean, Gulf of Mexico, and Sargasso Sea
NASA Astrophysics Data System (ADS)
Martin, L.; Schell, J. M.; Goodwin, D.; Biggs, D.; Siuda, A. N.
2016-02-01
Sargassum natans and S. fluitans are entirely pelagic, offering a pseudo-benthic structural habitat for an associated community of mobile fauna. In turn, the mobile fauna community supports foraging seabirds, fish, and turtles. Recent satellite observations suggest Sargassum in the Sargasso Sea is seeded annually from the Gulf of Mexico. Furthermore, the Caribbean is in the midst of a Sargassum inundation that appears disconnected in origin from the Sargasso Sea and Gulf of Mexico. Sargassum and fauna were collected via dip net during spring and summer 2015 from the Gulf of Mexico, Sargasso Sea and Eastern Caribbean to study the impacts that region, aggregation pattern (isolated clump, windrow, mat), and Sargassum variety morphology have on mobile fauna community composition. Sargassum from all three regions shared five common (frequency >10%) species: flatworm spp., Portunus sayi, Litiopa melanostoma, Leander tenuicornis, and Latreutes fucorum). The Gulf presented the most unique species (9 unique / 16 total) followed by the Sargasso Sea (5 unique / 12 total) and the Caribbean (1 unique / 6 total). The majority of species unique to the Gulf of Mexico were juvenile fish while those in the Caribbean and Sargasso Sea were benthic-like species residing on the Sargassum itself. Differences in the morphological forms of Sargassum had a marked effect on fauna diversity and abundance. In all three regions, fewer individuals and species were found on the broad-leafed, less compact S. natans VIII than on the denser S. natans I and S. fluitans III. This study identifies the differences in macrofauna abundance and diversity between varieties of Sargassum and highlights the potential for dramatic community changes that could result from largescale Sargassum blooms and species shifts. Any shift in these keystone communities could result in negative cascading effects on seabirds, economically important fish populations, and juvenile turtles which use the seaweed as a nursery
78 FR 69649 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-11-20
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will hold a Webinar of the Outreach and.../register/787609511 to register. Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois...
77 FR 64960 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2012-10-24
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a webinar of the Standing and Special... webinar will be available on the Council Web site. Council address: Gulf of Mexico Fishery Management...
76 FR 32956 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-06-07
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ecosystem... the Gulf of Mexico Fishery Management Council Office located at 2203 N. Lois Avenue, Suite 1100, Tampa...
75 FR 11133 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-03-10
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene a meeting of the Ad Hoc Data... Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607...
78 FR 15707 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-03-12
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Standing...: (813) 874-1234. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite...
78 FR 25255 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-04-30
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Coastal Migratory..., May 15, 2013. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery Management Council...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-10-22
...), Commerce. ACTION: Proposed changes to management measures; request for comments. SUMMARY: NMFS proposes to... described in a framework action to the Fishery Management Plan for the Shrimp Fishery of the Gulf of Mexico (FMP), as prepared by the Gulf of Mexico (Gulf) Fishery Management Council (Council). Newer and more...
77 FR 26745 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-07
... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery... Mexico Fishery Management Council will convene a Web based meeting of the ABC Control Rule Working Group.... Please go to the Gulf of Mexico Fishery Management Council's Web site at www.gulfcouncil.org for...
77 FR 41376 - Gulf of Mexico Fishery Management Council; Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-07-13
... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery... Mexico Fishery Management Council will convene three web based meetings of the ABC Control Rule Working... Internet. Please go to the Gulf of Mexico Fishery Management Council's Web site at www.gulfcouncil.org for...
76 FR 57023 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-15
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Reef.... on Thursday, October 6, 2011. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery...
75 FR 10760 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-03-09
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a joint meeting of the Standing and... be held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa...
77 FR 75409 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2012-12-20
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Reef Fish Committee... located at 2225 North Lois Avenue, Tampa, FL 33607, 813-877-6688. Council address: Gulf of Mexico Fishery...
76 FR 13130 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-03-10
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Reef Fish... the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607...
75 FR 32747 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-06-09
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a web based meeting of the Ecosystem... participate, you must register for the webinar on the Gulf of Mexico's website. Directions on how to register...
47 CFR 22.950 - Provision of service in the Gulf of Mexico Service Area (GMSA)
Code of Federal Regulations, 2010 CFR
2010-10-01
... 47 Telecommunication 2 2010-10-01 2010-10-01 false Provision of service in the Gulf of Mexico... service in the Gulf of Mexico Service Area (GMSA) The GMSA has been divided into two areas for licensing purposes, the Gulf of Mexico Exclusive Zone (GMEZ) and the Gulf of Mexico Coastal Zone (GMCZ). This section...
47 CFR 22.950 - Provision of service in the Gulf of Mexico Service Area (GMSA)
Code of Federal Regulations, 2014 CFR
2014-10-01
... 47 Telecommunication 2 2014-10-01 2014-10-01 false Provision of service in the Gulf of Mexico... service in the Gulf of Mexico Service Area (GMSA) The GMSA has been divided into two areas for licensing purposes, the Gulf of Mexico Exclusive Zone (GMEZ) and the Gulf of Mexico Coastal Zone (GMCZ). This section...
47 CFR 22.950 - Provision of service in the Gulf of Mexico Service Area (GMSA)
Code of Federal Regulations, 2012 CFR
2012-10-01
... 47 Telecommunication 2 2012-10-01 2012-10-01 false Provision of service in the Gulf of Mexico... service in the Gulf of Mexico Service Area (GMSA) The GMSA has been divided into two areas for licensing purposes, the Gulf of Mexico Exclusive Zone (GMEZ) and the Gulf of Mexico Coastal Zone (GMCZ). This section...
47 CFR 22.950 - Provision of service in the Gulf of Mexico Service Area (GMSA)
Code of Federal Regulations, 2013 CFR
2013-10-01
... 47 Telecommunication 2 2013-10-01 2013-10-01 false Provision of service in the Gulf of Mexico... service in the Gulf of Mexico Service Area (GMSA) The GMSA has been divided into two areas for licensing purposes, the Gulf of Mexico Exclusive Zone (GMEZ) and the Gulf of Mexico Coastal Zone (GMCZ). This section...
The Gulf of Mexico research initiative: It takes a village
NASA Astrophysics Data System (ADS)
Colwell, Rita R.
2016-07-01
The Gulf of Mexico Research Initiative (GoMRI) was established at the time of one of the most significant ecological events in recent memory, the Deepwater Horizon oil spill. Defined by the discharge of over 150 million gallons of crude oil and the introduction of over 1.8 million gallons of chemical dispersants into the Gulf system, the impacts of the Deepwater Horizon disaster reached the Gulf Coast's wetlands and beaches and impacted the surface and deep ocean. The ecological story of the event reveals a strong linkage between the deep sea research community and research priorities in the Gulf of Mexico (coastal processes, human health, etc.). Deep Sea research efforts have revealed critical parts of the story, providing information on transport, fate, and effects of the Deepwater Horizon oil release and subsequent recovery of the Gulf of Mexico ecosystems.
77 FR 76472 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2012-12-28
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene scoping meetings on addressing issues... January 22, 2013 at seven locations throughout the Gulf of Mexico. The scoping meetings will begin at 6 p...
77 FR 13096 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2012-03-05
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene Scoping Meetings on a... locations throughout the Gulf of Mexico. The scoping meetings will begin at 6 p.m. and will conclude no...
On the Loop Current Penetration into the Gulf of Mexico
NASA Astrophysics Data System (ADS)
Weisberg, Robert H.; Liu, Yonggang
2017-12-01
The Gulf of Mexico Loop Current generally intrudes some distance into the Gulf of Mexico before shedding an anticyclonic eddy and retreating back to its more direct entry to exit pathway. The control of this aperiodic process remains only partially known. Here we describe the evolution of the Loop Current throughout the era of satellite altimetry, and offer a mechanistic hypothesis on Loop Current intrusion. As a complement to the known effects of Loop Current forcing on the west Florida shelf circulation, we argue that the west Florida shelf, in turn, impacts the Loop Current evolution. A Self-Organizing Map analysis shows that anomalous northward penetrations of the Loop Current into the Gulf of Mexico occur when the eastern side of Loop Current is positioned west from the southwest corner of the west Florida shelf, whereas the more direct inflow to outflow route occurs when the eastern side of the Loop Current comes in contact with the southwest corner of the west Florida shelf. In essence, we argue that the west Florida shelf anchors the Loop Current in its direct path configuration and that farther northward penetration into the Gulf of Mexico occurs when such anchoring is released. To test of this hypothesis heuristically, we estimate that the dissipation and buoyancy work due to known Loop Current forcing of the west Florida shelf circulation (when in contact with the southwest corner) may exceed the pressure work required for the Loop Current to advance against the ambient Gulf of Mexico fluid.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-14
... Fishery of the Gulf of Mexico; Gray Triggerfish Management Measures AGENCY: National Marine Fisheries... Act), implements interim measures to reduce overfishing of gray triggerfish in the Gulf of Mexico (Gulf). This rule reduces the gray triggerfish commercial quota (commercial annual catch target (ACT...
Coastal vulnerability assessment of the Northern Gulf of Mexico to sea-level rise and coastal change
Pendleton, E.A.; Barras, J.A.; Williams, S.J.; Twichell, D.C.
2010-01-01
A coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise along the Northern Gulf of Mexico from Galveston, TX, to Panama City, FL. The CVI ranks the following in terms of their physical contribution to sea-level rise-related coastal change: geomorphology, regional coastal slope, rate of relative sea-level rise, historical shoreline change rate, mean tidal range, and mean significant wave height. The rankings for each variable are combined and an index value is calculated for 1-kilometer grid cells along the coast. The CVI highlights those regions where the physical effects of sea-level rise might be the greatest. The CVI assessment presented here builds on an earlier assessment conducted for the Gulf of Mexico. Recent higher resolution shoreline change, land loss, elevation, and subsidence data provide the foundation for a better assessment for the Northern Gulf of Mexico. The areas along the Northern Gulf of Mexico that are likely to be most vulnerable to sea-level rise are parts of the Louisiana Chenier Plain, Teche-Vermillion Basin, and the Mississippi barrier islands, as well as most of the Terrebonne and Barataria Bay region and the Chandeleur Islands. These very high vulnerability areas have the highest rates of relative sea-level rise and the highest rates of shoreline change or land area loss. The information provided by coastal vulnerability assessments can be used in long-term coastal management and policy decision making.
75 FR 35768 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-06-23
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a web based meeting of the Red Drum... must register for the webinar on the Gulf of Mexico's website. Directions on how to register will be...
77 FR 76473 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2012-12-28
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the..., January 16, 2013 and conclude at 5 p.m. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery...
Widespread survey finds no evidence of Haplosporidium nelsoni (MSX) in Gulf of Mexico oysters.
Ford, Susan E; Paterno, Jenny; Scarpa, Emily; Stokes, Nancy A; Kim, Yungkul; Powell, Eric N; Bushek, David
2011-02-22
The advent of molecular detection assays has provided a set of very sensitive tools for the detection of pathogens in marine organisms, but it has also raised problems of how to interpret positive signals that are not accompanied by visual confirmation. PCR-positive results have recently been reported for Haplosporidium nelsoni (MSX), a pathogen of the oyster Crassostrea virginica in 31 of 40 oysters from 6 sites in the Gulf of Mexico and the Caribbean Sea. Histological confirmation of the PCR results was not undertaken, and no haplosporidian has been reported from the numerous histological studies and surveys of oysters in the region. To further investigate the possibility that H. nelsoni is present in this region, we sampled 210 oysters from 40 sites around the Gulf of Mexico and Puerto Rico using PCR and 180 of these using tissue-section histology also. None of the oysters showed evidence of H. nelsoni by PCR or of any haplosporidian by histology. We cannot, therefore, confirm that H. nelsoni is present and widespread in the Gulf of Mexico and the Caribbean Sea. Our results do not prove that H. nelsoni is absent from the region, but taken together with results from previous histological surveys, they suggest that for the purposes of controlling oyster importation, the region should continue to be considered free of the parasite.
Western Gulf of Mexico lease sale draws weak response
DOE Office of Scientific and Technical Information (OSTI.GOV)
Koen, A.D.
1992-08-24
This paper reports that puny participation in the federal lease sale for the western Gulf of Mexico reflected a lack of open acreage on attractive prospects and the crisis sweeping the U.S. offshore oil and gas industry. Thirty-eight companies participating in the Minerals Management Service's Outer Continental Shelf Sale 141 offered 81 bids for 61 tracts in the western gulf planning area. That was the fewest bids offered in a western gulf sale since operators offered 52 bids for 41 tracts at Sale 105 in August 1986. The only Gulf of Mexico minerals sale to attract less bonus money wasmore » the MMS sulfur and salt sale in the central gulf in February 1988 in which $20.8 million was exposed.« less
Estimating the Provision of Ecosystem Services by Gulf of Mexico Coastal Wetlands.
Gulf of Mexico (GOM) coastal wetlands contribute to human well-being by providing many ecosystem services (e.g., commercial and recreational fishery support, protection of coastal communities from storm surge, water quality improvement, and carbon sequestration). The GOM region c...
Storm Induced Injection of the Mississippi River Plume Into the Open Gulf of Mexico
NASA Technical Reports Server (NTRS)
Yuan, Jinchun; Miller, Richard L.; Powell, Rodney T.; Dagg, Michael J.
2004-01-01
The direct impact of the Mississippi River on the open Gulf of Mexico is typically considered to be limited due to the predominantly along-shore current pattern. Using satellite imagery, we analyzed chl a distributions in the northern Gulf of Mexico before and after the passage of two storms: Hurricane Lili and Tropical Storm Barry. Our analyses indicate that storm-induced eddies can rapidly inject large volumes of nutrient-rich Mississippi River water to the open gulf, and lead to phytoplankton blooms. Although these events last only a few weeks, they transport significant amounts of fluvial substances to the ocean. These river-ocean interactions are especially significant in tropical and subtropical regions because receiving waters are typically permanently stratified and oligotrophic.
Introduction to "northern Gulf of Mexico ecosystem change and hazards susceptibility"
Brock, J.C.; Lavoie, D.L.; Poore, R.Z.
2009-01-01
The northern Gulf of Mexico and its diverse natural resources are threatened by population and development pressure, and by the impacts of rising sea level and severe storms. In the wake of the devastating 2005 hurricane season, and in response to the complex management issues facing the region, the U.S. Geological Survey organized the multidisciplinary "Northern Gulf of Mexico Ecosystem Change and Hazards Susceptibility" project. This special issue of Geo-Marine Letters hosts a few of the early results in the form of 11 papers covering three themes: (1) the control exerted by the underlying geologic framework on geomorphology and nearshore processes and features; (2) impact of human activities on nearshore water quality; and (3) hurricanes and associated effects. ?? 2009 US Government.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Meinhold, A.F.; Holtzman, S.; DePhillips, M.P.
1996-06-01
This report reviews ecological risk assessment concepts and methods; describes important biological resources in the Gulf of Mexico of potential concern for produced water impacts; and summarizes data available to estimate exposure and effects of produced water discharges. The emphasis is on data relating to produced water discharges in the central and western Gulf of Mexico, especially in Louisiana. Much of the summarized data and cited literature are relevant to assessments of impacts in other regions. Data describing effects on marine and estuarine fishes, mollusks, crustaceans and benthic invertebrates are emphasized. This review is part of a series of studiesmore » of the health and ecological risks from discharges of produced water to the Gulf of Mexico. These assessments will provide input to regulators in the development of guidelines and permits, and to industry in the use of appropriate discharge practices.« less
Seagrasses in northern Gulf of Mexico: An ecosystem in trouble
,
2000-01-01
The USGS National Wetlands Research Center has documented that Seagrasses in the northern Gulf of Mexico constitute an ecosystem in trouble. From studies in St. Andrews Bay, Period Bay, the Chandeleur Islands, and the Gulf Islands National Seashore, scientists have discovered that declining seagrass acreage ranges from 12% to 66% in bays and estuaries of the Gulf of Mexico. Not only are seagrasses disappearing, but they are also changing in species composition, densities, and patchiness.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-07-10
...-BB72 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Amendment 34 AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric... Mexico Fishery Management Council (Council) has submitted Amendment 34 to the Fishery Management Plan for...
NASA Astrophysics Data System (ADS)
Lawton, T. F.; Molina-Garza, R. S.; Barboza-Gudiño, R.; Rogers, R. D.
2013-05-01
Major sediment dispersal systems on western Pangea evolved in concert with thermal uplift, rift and drift phases of the Gulf of Mexico Basin, and were influenced by development of a continental arc on Pangea's western margin. Existing literature and preliminary data from fieldwork, sandstone petrology and detrital zircon analysis reveal how major drainages in Mexico changed from Late Triassic through Late Jurassic time and offer predictions for the ultimate destinations of sand-rich detritus along the Gulf and paleo-Pacific margins. Late Triassic rivers drained away from and across the present site of the Gulf of Mexico, which was then the location of a major thermal dome, the Texas uplift of recent literature. These high-discharge rivers with relatively mature sediment composition fed a large-volume submarine fan system on the paleo-Pacific continental margin of Mexico. Predictably, detrital zircon age populations are diverse and record sources as far away as the Amazonian craton. This enormous fluvial system was cut off abruptly near the Triassic-Jurassic boundary by extensive reorganization of continental drainages. Early and Middle Jurassic drainage systems had local headwaters and deposited sediment in extensional basins associated with arc magmatism. Redbeds accumulated across northern and eastern Mexico and Chiapas in long, narrow basins whose locations and dimensions are recorded primarily by inverted antiformal massifs. The Jurassic continental successions overlie Upper Triassic strata and local subvolcanic plutons; they contain interbedded volcanic rocks and thus have been interpreted as part of the Nazas continental-margin arc. The detritus of these fluvial systems is volcanic-lithic; syndepositional grain ages are common in the detrital zircon populations, which are mixed with Oaxaquia-derived Permo-Triassic and Grenville age populations. By this time, interior Pangea no longer supplied sediment to the paleo-Pacific margin, possibly because the
78 FR 49477 - Gulf of Mexico Fishery Management Council; Public Meeting; Correction
Federal Register 2010, 2011, 2012, 2013, 2014
2013-08-14
... Mexico Fishery Management Council; Public Meeting; Correction AGENCY: National Marine Fisheries Service... of a public meeting notice of the Gulf of Mexico Fishery Management Council. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will hold meetings of the Sustainable Fisheries/Ecosystem...
Sperm whales (Physeter catodon) in the Gulf of Mexico
Collum, L.A.; Fritts, T.H.
1985-01-01
The distribution of the sperm whale, Physeter catodon, was documented in the Gulf of Mexico during 1979 to 1981 using regular aerial surveys and opportunistic sightings from ships. Most sightings were in the western Gulf of Mexico in deep waters near the edge of the continental shelf. A total of 47 adults and 12 young animals was sighted in groups containing from one to 14 animals.
76 FR 54375 - Safety Zone; Thunder on the Gulf, Gulf of Mexico, Orange Beach, AL
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-01
...-AA00 Safety Zone; Thunder on the Gulf, Gulf of Mexico, Orange Beach, AL AGENCY: Coast Guard, DHS... protection of crews, vessels, persons, and spectators on navigable waters during the Thunder on the Gulf high... to hold their Thunder on the Gulf high speed boat races starting on October 6, 2011. Publishing a...
Mechanistic solutions to the opening of the Gulf of Mexico
Schouten, Hans; Klitgord, Kim D.
1994-01-01
Two mechanistic models-which are unlike the traditional plate-tectonic landfill models used for most proposed Pangea reconstructions of the Yucatán block-relate the Mesozoic opening of the Gulf of Mexico directly to the movement of the North and South American plates: (1) a previous piggyback model in which Yucatán moves with South America out of the western gulf and (2) a new edge-driven model in which the motion of the Yucatán block is caused by forces applied to its margins by the movement of the North and South American plates. In the second model, Yucatán moves out of the northern Gulf of Mexico as a gear or roller bearing. On the basis of magnetic edge anomalies around the gulf, this edge-driven model predicts that from the Bathonian to Tithonian (~170 to ~50 Ma), Yucatán was rotated ~60° counterclockwise as a rigid block between North and South America with rift propagation and extension occurring simultaneously in the Gulf of Mexico and Yucatán Basin.
Multibeam mapping of the Pinnacles region, Gulf of Mexico
Gardner, James V.; Dartnell, Peter; Sulak, Kenneth J.
2002-01-01
Recent USGS mapping shows an extensive deep (~100 m) reef tract occurs on the Mississippi-Alabama outer continental shelf (Figure 1). The tract, known as "The Pinnacles", is apparently part of a sequence of drowned reef complexes along the "40-fathom" shelf edge of the northern Gulf of Mexico (Ludwick and Walton, 1957). It is critical to determine the accurate geomorphology of these deep-reefs because of their importance as benthic habitats for fisheries. The Pinnacles have previously been mapped using a single-beam echo sounder (Ludwick and Walton,1957), sidescan sonar (Laswell et al., 1990), and the TAMU2 towed single-beam sidescan-sonar system (Anonymous, 1999). These existing studies do not provide the quality of geomorphic data necessary for reasonable habitat studies.
NASA Astrophysics Data System (ADS)
Olaguer, E. P.
2010-12-01
Formaldehyde has been named by the EPA as a hazardous air pollutant that may be carcinogenic and also cause irritation to the eyes, nose, throat and lung. Moreover, it is a powerful radical and ozone precursor. The 2009 Study of Houston Atmospheric Radical Precursors (SHARP) was conceived by the Houston Advanced Research Center (HARC) on behalf of the Texas Environmental Research Consortium (TERC) to examine the relative importance of primary and secondary formaldehyde (HCHO) and nitrous acid (HONO) in ozone formation. SHARP confirmed that primary combustion sources of HCHO, such as flares end engines, may be underestimated (by an order of magnitude or more) in official emission inventories used for the purpose of air quality modeling in highly industrialized areas such as Houston. This presentation provides recently generated modeling and observational evidence that the same may be true in both rural and urban areas with oil and gas exploration and production (E&P) activities, such as the Upper Green River Basin of Wyoming and the Barnett Shale of Texas. Oil and gas E&P is increasing in the Gulf of Mexico region, particularly in the Barnett, Haynesville, Eagle Ford, Cana-Woodford, and Fayetteville shale basins. In the Barnett Shale, E&P activities are moving into urban neighborhoods, and may affect the ability to bring the Dallas-Ft. Worth region into attainment of the federal ozone standard. Data concerning formaldehyde emissions from drill rig and pipeline compressor engines, flares, and glycol or amine reboilers, should be obtained in order to more accurately model air quality in the Gulf of Mexico region.
50 CFR 600.1310 - New England and Gulf of Mexico Individual Fishing Quota Referenda.
Code of Federal Regulations, 2010 CFR
2010-10-01
... 50 Wildlife and Fisheries 8 2010-10-01 2010-10-01 false New England and Gulf of Mexico Individual... PROVISIONS Limited Access Privilege Programs § 600.1310 New England and Gulf of Mexico Individual Fishing... Fishery Management Council (NEFMC) and the Gulf of Mexico Fishery Management Council (GMFMC). These...
50 CFR 600.1310 - New England and Gulf of Mexico Individual Fishing Quota Referenda.
Code of Federal Regulations, 2013 CFR
2013-10-01
... 50 Wildlife and Fisheries 12 2013-10-01 2013-10-01 false New England and Gulf of Mexico Individual... PROVISIONS Limited Access Privilege Programs § 600.1310 New England and Gulf of Mexico Individual Fishing... Fishery Management Council (NEFMC) and the Gulf of Mexico Fishery Management Council (GMFMC). These...
50 CFR 600.1310 - New England and Gulf of Mexico Individual Fishing Quota Referenda.
Code of Federal Regulations, 2011 CFR
2011-10-01
... 50 Wildlife and Fisheries 10 2011-10-01 2011-10-01 false New England and Gulf of Mexico Individual... PROVISIONS Limited Access Privilege Programs § 600.1310 New England and Gulf of Mexico Individual Fishing... Fishery Management Council (NEFMC) and the Gulf of Mexico Fishery Management Council (GMFMC). These...
50 CFR 600.1310 - New England and Gulf of Mexico Individual Fishing Quota Referenda.
Code of Federal Regulations, 2014 CFR
2014-10-01
... 50 Wildlife and Fisheries 12 2014-10-01 2014-10-01 false New England and Gulf of Mexico Individual... PROVISIONS Limited Access Privilege Programs § 600.1310 New England and Gulf of Mexico Individual Fishing... Fishery Management Council (NEFMC) and the Gulf of Mexico Fishery Management Council (GMFMC). These...
50 CFR 600.1310 - New England and Gulf of Mexico Individual Fishing Quota Referenda.
Code of Federal Regulations, 2012 CFR
2012-10-01
... 50 Wildlife and Fisheries 12 2012-10-01 2012-10-01 false New England and Gulf of Mexico Individual... PROVISIONS Limited Access Privilege Programs § 600.1310 New England and Gulf of Mexico Individual Fishing... Fishery Management Council (NEFMC) and the Gulf of Mexico Fishery Management Council (GMFMC). These...
Run-up of Tsunamis in the Gulf of Mexico caused by the Chicxulub Impact Event
NASA Astrophysics Data System (ADS)
Weisz, R.; Wünnenmann, K.; Bahlburg, H.
2003-04-01
The Chicxulub impact event can be investigated on (1) local, (2) regional and in (3) global scales. Our investigations focus on the regional scale, especially on the run-up of tsunami waves on the coast around the Gulf of Mexico caused by the impact. An impact produces two types of tsunami waves: (1) the rim wave, (2) the collapse wave. Both waves propagate over long distances and reach coastal areas. Depending on the tsunami wave characteristics, they have a potentionally large influence on the coastal areas. Run-up distance and run-up height can be used as parameters for assessing this influence. To calculate these parameters, we are using a multi-material hydrocode (SALE) to simulate the generation of the tsunami wave, a non-linear shallow water approach for the propagation, and we implemented a special open boundary for considering the run-up of tsunami waves. With the help of the one-dimensional shallow water approach, we will give run-up heights and distances for the coastal area around the Gulf of Mexico. The calculations are done along several sections from the impact site towards the coast. These are a first approximation to run-up calculations for the entire coast of the Gulf of Mexico. The bathymetric data along the sections, used in the wave propagation and run-up, correspond to a linearized bathymetry of the recent Gulf of Mexico. Additionally, we will present preliminary results from our first two-dimensional experiments of propagation and run-up. These results will be compared with the one-dimensional approach.
Federal Register 2010, 2011, 2012, 2013, 2014
2010-05-24
...In accordance with the framework procedures for adjusting management measures of the Fishery Management Plan for the Shrimp Fishery of the Gulf of Mexico (Gulf FMP) and the Fishery Management Plan for the Shrimp Fishery of the South Atlantic region (South Atlantic FMP) NMFS provisionally recertifies two bycatch reduction devices (BRDs) and revises the construction and installation requirements of one of these BRD designs in the southeastern shrimp fishery. The intended effect of this rule is to improve bycatch reduction in the shrimp fishery and better meet the requirements of National Standard 9.
Hypoxia in the Northern Gulf of Mexico
DOE Office of Scientific and Technical Information (OSTI.GOV)
Dale, Virginia H
2010-01-01
Since 1985, scientists have been documenting a hypoxic zone in the Gulf of Mexico each year. The hypoxic zone, an area of low dissolved oxygen that cannot support marine life, generally manifests itself in the spring. Since marine species either die or flee the hypoxic zone, the spread of hypoxia reduces the available habitat for marine species, which are important for the ecosystem as well as commercial and recreational fishing in the Gulf. Since 2001, the hypoxic zone has averaged 16,500 km{sup 2} during its peak summer months, an area slightly larger than the state of Connecticut, and ranged frommore » a low of 8,500 km{sup 2} to a high of 22,000 km{sup 2}. To address the hypoxia problem, the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force (or Task Force) was formed to bring together representatives from federal agencies, states, and tribes to consider options for responding to hypoxia. The Task Force asked the White House Office of Science and Technology Policy to conduct a scientific assessment of the causes and consequences of Gulf hypoxia through its Committee on Environment and Natural Resources (CENR). In 2000 the CENR completed An Integrated Assessment: Hypoxia in the Northern Gulf of Mexico (or Integrated Assessment), which formed the scientific basis for the Task Force's Action Plan for Reducing, Mitigating, and Controlling Hypoxia in the Northern Gulf of Mexico (Action Plan, 2001). In its Action Plan, the Task Force pledged to implement ten management actions and to assess progress every 5 years. This reassessment would address the nutrient load reductions achieved, the responses of the hypoxic zone and associated water quality and habitat conditions, and economic and social effects. The Task Force began its reassessment in 2005. In 2006 as part of the reassessment, USEPA's Office of Water, on behalf of the Task Force, requested that the U.S. Environmental Protection Agency (USEPA) Science Advisory Board (SAB) convene an independent
Reducing hypoxia in the Gulf of Mexico – an alternative approach
USDA-ARS?s Scientific Manuscript database
Hypoxia in the Gulf of Mexico is a high-priority national issue. Agricultural nonpoint source pollution is the greatest source of water pollution today and its consequences are particularly evident in the Gulf of Mexico. For example, Illinois, Iowa and Indiana together contribute nearly 30% of the p...
76 FR 23995 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-04-29
...; Joint Amendment 10 to the Spiny Lobster Fishery Management Plan for the Gulf of Mexico and South...: 813-348-1630. SUPPLEMENTARY INFORMATION: Spiny Lobster Public hearings will be held on Joint Amendment 10 to the Spiny Lobster Fishery Management Plan for the Gulf of Mexico and South Atlantic. Joint...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-01-30
...NMFS issues this final rule to implement management measures described in Amendment 38 to the Fishery Management Plan for the Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the Gulf of Mexico (Gulf) Fishery Management Council (Council). This final rule modifies post-season accountability measures (AMs) that affect the recreational harvest of shallow-water grouper species (SWG), changes the trigger for recreational sector AMs for gag and red grouper, and revises the Gulf reef fish framework procedure. The intent of this final rule is to achieve optimum yield (OY) while ensuring the Gulf reef fish fishery resources are utilized efficiently.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-12-02
... Atlantic; Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic; Amendment 10 AGENCY: National... Plan for the Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic (FMP), as prepared and... the lobster species contained within the fishery management unit; establishes an annual catch limit...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-23
... Atlantic; Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic; Amendment 10 AGENCY: National... Fishery Management Plan for the Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic (FMP), as... implemented, this rule would revise the lobster species contained within the fishery management unit...
ASTER Views the Gulf of Mexico Oil Spill in Infrared May 1
2010-05-04
NASA Terra spacecraft captured this image of the growing oil spill in the Gulf of Mexico on May 1, 2010. On April 20, 2010, an explosion destroyed the Deepwater Horizon oil platform operating offshore in the Gulf of Mexico.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-11-07
... Gulf of Mexico Spanish Mackerel and Cobia AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Notice of SEDAR 28 Gulf of Mexico Spanish mackerel and cobia assessment webinar. SUMMARY: The SEDAR 28 assessment of the Gulf of Mexico Spanish...
NASA Technical Reports Server (NTRS)
1982-01-01
Sunglint on the water's surface reveals the complex pattern of currents in the Gulf of California in the vicinity of Tiburon and Angel de la Guarda Islands (29.0N, 113.0W). Mexico's state of Sonora and the Sonora Desert is on the mainland and the state of Baja California consists of the entire peninsula. The Pacific Ocean is under the coastal cloud cover on the Baja peninsula.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-10-19
...NMFS proposes to implement management measures described in Amendment 38 to the Fishery Management Plan for the Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the Gulf of Mexico (Gulf) Fishery Management Council (Council). If implemented, this rule would modify post-season accountability measures (AMs) that affect shallow- water grouper species (SWG), change the trigger for AMs, and revise the Gulf reef fish framework procedure. The intent of this proposed rule is to achieve optimum yield (OY) while ensuring the fishery resources are utilized efficiently.
33 CFR 166.200 - Shipping safety fairways and anchorage areas, Gulf of Mexico.
Code of Federal Regulations, 2010 CFR
2010-07-01
... anchorage areas, Gulf of Mexico. 166.200 Section 166.200 Navigation and Navigable Waters COAST GUARD... Mexico. (a) Purpose. Fairways and anchorage areas as described in this section are established to control the erection of structures therein to provide safe approaches through oil fields in the Gulf of Mexico...
33 CFR 166.200 - Shipping safety fairways and anchorage areas, Gulf of Mexico.
Code of Federal Regulations, 2014 CFR
2014-07-01
... anchorage areas, Gulf of Mexico. 166.200 Section 166.200 Navigation and Navigable Waters COAST GUARD... Mexico. (a) Purpose. Fairways and anchorage areas as described in this section are established to control the erection of structures therein to provide safe approaches through oil fields in the Gulf of Mexico...
33 CFR 166.200 - Shipping safety fairways and anchorage areas, Gulf of Mexico.
Code of Federal Regulations, 2011 CFR
2011-07-01
... anchorage areas, Gulf of Mexico. 166.200 Section 166.200 Navigation and Navigable Waters COAST GUARD... Mexico. (a) Purpose. Fairways and anchorage areas as described in this section are established to control the erection of structures therein to provide safe approaches through oil fields in the Gulf of Mexico...
33 CFR 166.200 - Shipping safety fairways and anchorage areas, Gulf of Mexico.
Code of Federal Regulations, 2012 CFR
2012-07-01
... anchorage areas, Gulf of Mexico. 166.200 Section 166.200 Navigation and Navigable Waters COAST GUARD... Mexico. (a) Purpose. Fairways and anchorage areas as described in this section are established to control the erection of structures therein to provide safe approaches through oil fields in the Gulf of Mexico...
33 CFR 166.200 - Shipping safety fairways and anchorage areas, Gulf of Mexico.
Code of Federal Regulations, 2013 CFR
2013-07-01
... anchorage areas, Gulf of Mexico. 166.200 Section 166.200 Navigation and Navigable Waters COAST GUARD... Mexico. (a) Purpose. Fairways and anchorage areas as described in this section are established to control the erection of structures therein to provide safe approaches through oil fields in the Gulf of Mexico...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-04-20
...In accordance with the framework procedures for adjusting management measures of the Fishery Management Plan for the Shrimp Fishery of the Gulf of Mexico (Gulf FMP) and the Fishery Management Plan for the Shrimp Fishery of the South Atlantic region (South Atlantic FMP) NMFS proposes to provisionally recertify two bycatch reduction devices (BRDs) and revise the construction and installation requirements of one of these BRD designs in the southeastern shrimp fishery. The intended effect of this proposed rule is to improve bycatch reduction in the shrimp fishery, reduce regulatory confusion, and better meet the requirements of National Standard 9.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-23
... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration 50 CFR Part 654 [Docket No. 110707375-1578-02] RIN 0648-BB07 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Stone Crab Fishery of the Gulf of Mexico; Removal of Regulations AGENCY: National Marine Fisheries Service (NMFS...
Seagrass status and trends in the northern Gulf of Mexico: 1940-2002
Handley, L.; Altsman, D.; DeMay, R.
2007-01-01
Over the past century, seagrass habitats from the bays of Texas to the gulf shores of Florida have decreased. Seagrass beds, which are highly dependent on water quality and clarity for survival, are home to a multitude of aquatic plants and animals and a source of economic activity through commercial and recreational fishing and ecotourism. The U.S. Environmental Protection Agency’s Gulf of Mexico Program (GMP) and its partners have made a commitment to restore, enhance, and protect this important ecosystem. As seagrass habitats decrease, the need for information on the causes and effects of seagrass loss, current mapping information, and education on the importance of seagrassess becomes greater. This report is the initial effort of the GMP’s research and restoration plan for seagrasses. The purpose of this report is to provide scientists, managers, and citizens with valuable baseline information on the status and trends of seagrasses in coastal waters of the Gulf of Mexico. Within the northern Gulf of Mexico region, 14 individual estuarine systems where seagrasses occur, as well as statewide summaries for Texas, Louisiana, Mississippi, Alabama, and Florida, are examined in this study. Each estuarine system is detailed in vignettes that address current and historical extent and quality of seagrasses, seagrass mapping and monitoring, causes of status change, restoration and enhancement activities, background information for the entire study area as well as the subareas for study, and the methodology employed to analyze and document the historical trends and current status of seagrasses. The systems, moving from west to east, include the Laguna Madre, Texas Coastal Bend region, and Galveston Bay in Texas; the Chandeleur Islands in Louisiana; the Mississippi Sound; and Perdido Bay, Pensacola/Escambia Bay, Choctawhatchee Bay, St. Andrew Bay, Florida’s Big Bend region, Tampa Bay/St. Joseph Sound, Sarasota Bay, Greater Charlotte Harbor, and Florida Bay in Florida
Quantifying urban land cover change between 2001 and 2006 in the Gulf of Mexico region
Xian, George Z.; Homer, Collin G.; Bunde, Brett; Danielson, Patrick; Dewitz, Jon; Fry, Joyce; Pu, Ruiliang
2012-01-01
We estimated urbanization rates (2001–2006) in the Gulf of Mexico region using the National Land Cover Database (NLCD) 2001 and 2006 impervious surface products. An improved method was used to update the NLCD impervious surface product in 2006 and associated land cover transition between 2001 and 2006. Our estimation reveals that impervious surface increased 416 km2 with a growth rate of 5.8% between 2001 and 2006. Approximately 1110.1 km2 of non-urban lands were converted into urban land, resulting in a 3.2% increase in the region. Hay/pasture, woody wetland, and evergreen forest represented the three most common land cover classes that transitioned to urban. Among these land cover transitions, more than 50% of the urbanization occurred within 50 km of the coast. Our analysis shows that the close-to-coast land cover transition trend, especially within 10 km off the coast, potentially imposes substantial long-term impacts on regional landscape and ecological conditions.
Federal Register 2010, 2011, 2012, 2013, 2014
2010-05-03
... Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the Gulf of Mexico Fishery Management... assessment update, the overfishing limit (OFL), as endorsed by the Council's Scientific and Statistical... million lb (3.150 million kg), which is 25 percent below the OFL, to account for scientific uncertainty...
Poore, Richard Z.; Spear, Jessica W.; Tedesco, Kathy A.
2013-01-01
Sediment-trap samples from the northern Gulf of Mexico reveal that Globorotalia truncatulinoides, Neogloboquadrina dutertrei, Pulleniatina spp. (includes P. obliquiloculata and P. finalis), and the Globorotalia menardii group (includes Gt. menardii, Gt. tumida, and Gt. ungulata) generally occur in cold months. Globigerinoides ruber (white and pink varieties) and Globigennoides sacculifer occur throughout the year. The seasonal occurrence of individual taxa of planktic foraminifers in the Gulf of Mexico have important differences with the seasonal occurrence of the same taxa observed in a 6-year sediment-trap dataset from the western Sargasso Sea. Thus information on the ecologic preferences of individual taxa determined in one region cannot necessarily be applied directly to another area. In the northern Gulf of Mexico 90% of the total flux of Globorotalia truncatulinoides tests to sediments occurs in January and February. Mg/Ca and d18Ο measurements indicate that nonencrusted forms of Gt. truncatulinoides calcify in the upper-surface-mixed zone. Thus, analyses of nonencrusted Gt. truncatulinoides in sediments of the northern Gulf of Mexico have potential for monitoring past conditions in the winter-surface-mixed layer. The relatively low overall abundance of Globigerinoides ruber (white) in sediment-trap samples is anomalous because Gs. ruber (white) is one of the most abundant foraminifers in>150 µm census data from northern Gulf of Mexico Holocene sediment core samples. Globigerinoides ruber (pink) is a relatively persistent and common component of the sediment-trap samples. Thus Gs. ruber (pink) has potential as a proxy for mean annual sea-surface temperature in the Gulf of Mexico
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-30
... the season that would have occurred in the absence of the quota increase, and economic benefits to.... 120213124-1066-02] RIN 0648-BB91 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Red Snapper Management Measures AGENCY: National Marine Fisheries Service...
Eddy energy and shelf interactions in the Gulf of Mexico
NASA Astrophysics Data System (ADS)
Ohlmann, J. Carter; Niiler, P. Peter; Fox, Chad A.; Leben, Robert R.
2001-02-01
Sea surface height anomaly data from satellite are continuously available for the entire Gulf of Mexico. Surface current velocities derived from these remotely sensed data are compared with surface velocities from drifting buoys. The comparison shows that satellite altimetry does an excellent job resolving gulf eddies over the shelf rise (depths between ˜200 and 2000 m) if the proper length scale is used. Correlations between altimeter- and drifter-derived velocities are statistically significant (r>0.5) when the surface slope is computed over 125 km, indicating that remotely sensed sea surface height anomaly data can be used to aid the understanding of circulation over the shelf rise. Velocity variance over the shelf rise from the altimetry data shows regions of pronounced eddy energy south of the Mississippi outflow, south of the Texas-Louisiana shelf, and in the northwest and northeast corners of the gulf. These are the same locations where surface drifters are most likely to cross the shelf rise, suggesting gulf eddies promote cross-shore flows. This is clearly exemplified with both warm and cold eddies. Finally, the contribution of gulf eddies and wind stress to changes in the mean circulation are compared. Results indicate that the eddy-generated vorticity flux to the mean flow is greater than the contribution from the surface wind stress curl, especially in the region of the Loop current and along the shelf rise base in the western gulf. Future modeling efforts must not neglect the role of eddies in driving gulf circulation over the shelf rise.
Coral reef connectivity within the Western Gulf of Mexico
NASA Astrophysics Data System (ADS)
Salas-Monreal, David; Marin-Hernandez, Mark; Salas-Perez, Jose de Jesus; Salas-de-Leon, David Alberto; Monreal-Gomez, Maria Adela; Perez-España, Horacio
2018-03-01
The yearlong monthly mean satellite data of the geostrophic velocities, the sea surface temperature and the chlorophyll-a values were used to elucidate any possible pathway among the different coral reef systems of the Western Gulf of Mexico (WGM). The geostrophic current velocities suggested different pathways connecting the coral reef areas. The typical coastal alongshore pathway constricted to the continental shelf, and two open ocean pathway, the first connecting the Campeche Reef System (CRS) with the Veracruz (VRS) and Tuxpan-Lobos Reef Systems (TLRS), and the second pathway connecting the Tuxpan-Lobos Reef System with the Flower Garden Reef System (FGRS). According to the pathways there should be more larvae transport from the southern Gulf of Mexico reef systems toward the FGRS than the other way. The connection from the southern Gulf of Mexico toward the FGRS took place during January, May, July, August and September (2015), while the connection from the FGRS toward the southern Gulf of Mexico reef system took place during January and February (2015), this was also suggested via model outputs. The density radio (R) was used as a first approximation to elucidate the influence of the freshwater continental discharges within the continental shelf. All coral reef areas were located where the Chlorophyll-a monthly mean values had values bellow 1 mg m- 2 with a density radio between 0 and 1, i.e. under the influence of continental discharges.
Gulf of Mexico soundscapes as indicators of ecological stressors
NASA Astrophysics Data System (ADS)
Sidorovskaia, N.; Li, K.; Tiemann, C.; Ackleh, A. S.; Tang, T.; Risbourg, J. H.
2016-12-01
Soundscapes in the Northern Gulf of Mexico are complex and represent a combination of anthropogenic noise (oil exploration and production, shipping, rig construction, etc.), bio-soundscapes (sound of marine mammals and fish), and geo-soundscapes (weather events, submarine landslides, distant earthquakes, natural gas seeps). We will discuss how Passive Acoustic Monitoring in the deep Gulf has been utilized during the past decade to study the soundscape variability on daily, monthly, and yearly timescales and what environmental information can be extracted from this variability. Isolation of bio-soundscapes, identification of their sources, and abundance estimates based on acoustic cues are used to track the recovery of marine mammal species after major ecological disasters, such as the recent 2010 oil spill. Association of acoustic activity of marine species with anthropogenic noise levels and other environmental variables can provide base data that can be used to build ecological models of habitat preferences for different marine species. Understanding how the variability of anthropogenic soundscapes correlates with marine species distributions is critically important for regional conservation and mitigation strategies. Such studies can also assist in forecasting the long-term ecosystem health status and ecosystem response to disturbances of different spatial and temporal extent, including slow variations associated with climate change. [This research was made possible in part by a grant from The Gulf of Mexico Research Initiative, and in part by funding provided by ONR and The Joint Industry Programme.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-02-10
...; adjust the commercial ACL for SWG; establish a formula-based method for setting gag and red grouper multi... (FMP) for the Reef Fish Resources of the Gulf of Mexico (Amendment 32) prepared by the Gulf of Mexico... catch target (ACT) for 2012 through 2015 and subsequent fishing years, consistent with the gag...
AAPG-SEPM Gulf of Mexico type-well project
DOE Office of Scientific and Technical Information (OSTI.GOV)
Slatt, R.M.; Christopher, R.C.; Katz, B.J.
1992-12-01
In 1991, The American Association of Petroleum Geologists (AAPG) published a regional stratigraphic cross section and accompanying seismic line that extends from the south flank of the Ouachita tectonic belt in southern Arkansas (lat. 34.15'N) to south of the 28th parallel in the High Island area, South Addition Block of offshore Gulf of Mexico. The cross section shows chronostratigraphic correlations, lithostratigraphy, and generalized structural relations common to the central Gulf Coast and mid-continent region. The section has been published in three large sheets, each representing approximately 425 statue mi of geographic coverage. As an outgrowth of this project, AAPG, jointlymore » with the Society of Sedimentary Geology (SEPM), organized and sponsored a project through their respective Research Committees on biostratigraphic, lithostratigraphic, and organic geochemical analyses of cuttings from key wells tied to the cross section. Separate splits of samples were sent to volunteers for the following analyses: (1) binocular microscope lithology analysis, (2) detailed biostratigraphy, (3) organic geochemistry, and (4) clay mineralogy by x-ray diffraction (XRD).« less
García, Norberto A Colín; Campos, Jorge E; Musi, José L Tello; Forsman, Zac H; Muñoz, Jorge L Montero; Reyes, Alejandro Monsalvo; González, Jesús E Arias
2017-02-01
The genus Siderastrea exhibits high levels of morphological variability. Some of its species share similar morphological characteristics with congeners, making their identification difficult. Siderastrea stellata has been reported as an intermediary of S. siderea and S. radians in the Brazilian reef ecosystem. In an earlier study conducted in Mexico, we detected Siderastrea colonies with morphological features that were not consistent with some siderastreid species previously reported in the Gulf of Mexico. Thus, we performed a combined morphological and molecular analysis to identify Siderastrea species boundaries from the Gulf of Mexico. Some colonies presented high morphologic variability, with characteristics that corresponded to Siderastrea stellata. Molecular analysis, using the nuclear ITS and ITS2 region, corroborated the morphological results, revealing low genetic variability between S. radians and S. stellata. Since the ITS sequences did not distinguish between Siderastrea species, we used the ITS2 region to differentiate S. stellata from S. radians. This is the first report of Siderastrea stellata and its variability in the Gulf of Mexico that is supported by morphological and molecular analyses.
A screening model analysis of mercury sources, fate and bioaccumulation in the Gulf of Mexico.
Harris, Reed; Pollman, Curtis; Hutchinson, David; Landing, William; Axelrad, Donald; Morey, Steven L; Dukhovskoy, Dmitry; Vijayaraghavan, Krish
2012-11-01
A mass balance model of mercury (Hg) cycling and bioaccumulation was applied to the Gulf of Mexico (Gulf), coupled with outputs from hydrodynamic and atmospheric Hg deposition models. The dominant overall source of Hg to the Gulf is the Atlantic Ocean. Gulf waters do not mix fully however, resulting in predicted spatial differences in the relative importance of external Hg sources to Hg levels in water, sediments and biota. Direct atmospheric Hg deposition, riverine inputs, and Atlantic inputs were each predicted to be the most important source of Hg to at least one of the modeled regions in the Gulf. While incomplete, mixing of Gulf waters is predicted to be sufficient that fish Hg levels in any given location are affected by Hg entering other regions of the Gulf. This suggests that a Gulf-wide approach is warranted to reduce Hg loading and elevated Hg concentrations currently observed in some fish species. Basic data to characterize Hg concentrations and cycling in the Gulf are lacking but needed to adequately understand the relationship between Hg sources and fish Hg concentrations. Copyright © 2012. Published by Elsevier Inc.
HABSOS INTEGRATED CASE STUDY FOR THE GULF OF MEXICO
This project is part of a Harmful Algal Bloom Observing System Pilot Project for which the Gulf of Mexico Program is the coordinator. The Program office along with the EPA Gulf Breeze Laboratory will be working with the NOAA National Coastal Data Development Center, the National...
Mesozoic to Recent, regional tectonic controls on subsidence patterns in the Gulf of Mexico basin
NASA Astrophysics Data System (ADS)
Almatrood, M.; Mann, P.; Bugti, M. N.
2016-12-01
We have produced subsidence plots for 26 deep wells into the deeper-water areas of the Gulf of Mexico (GOM) in order to identify regional tectonic controls and propose tectonic phases. Our results show three sub-regions of the GOM basin that have distinctive and correlative subsidence patterns: 1) Northern GOM from offshore Texas to central Florida (9 wells) - this area is characterized by a deeply buried, Triassic-early Jurassic rift event that is not represented by our wells that penetrate only the post-rift Cretaceous to recent passive margin phase. The sole complexity in the passive margin phase of this sub-region is the acceleration of prograding clastic margins including the Mississippi fan in Miocene time; 2) Southeastern GOM in the Straits of Florida and Cuba area (5 wells) - this area shows that the Cretaceous passive margin overlying the rift phase is abruptly drowned in late Cretaceous as this part of the passive margin of North America that is flexed and partially subducted beneath the Caribbean arc as it encroaches from the southwest to eventually collide with the North American passive margin in the Paleogene; 3) Western GOM along the length of the eastern continental margin of Mexico (12 wells) - this is the most complex of the three areas in that shares the Mesozic rifting and passive margin phase but is unique with a slightly younger collisional event and foreland basin phase associated with the Laramide orogeny in Mexico extending from the KT boundary to the Oligocene. Following this orogenic event there is a re-emergence of the passive margin phase during the Neogene along locally affected by extensional and convergent deformation associated with passive margin fold belts. In summary, the GOM basin exhibits evidence for widespread rifting and passive margin formation associated with the breakup of Pangea in Mesozoic times that was locally superimposed and deformed during the late Cretaceous-Paleogene period by: 1) Caribbean subduction and
NASA Technical Reports Server (NTRS)
Oglesby, Robert J.; Maasch, Kirk A.; Saltzman, Barry
1989-01-01
The NCAR Community Climate Model GCM is presently used to investigate the possible effects on regional and hemispheric climates of reduced SSTs in the Gulf of Mexico, in view of delta-O-18 records and terrestrial evidence for at least two major glacial meltwater discharges after the last glacial maximum. Three numerical experiments have been conducted with imposed gulfwide SST coolings of 3, 6, and 12 C; in all cases, significant reductions arise in the North Atlantic storm-track intensity, together with a strong decrease in transient eddy water vapor transport out of the Gulf of Mexico. Other statistically significant changes occur across the Northern Hemisphere.
Gulf of Mexico and Atlantic coast sea level change
NASA Astrophysics Data System (ADS)
Douglas, Bruce C.
Twentieth-century relative sea level rise shows considerable variability along the U.S. East and Gulf coasts. Local rates of rise lie in the range of about 1.5 to more than 4 mm per year for records from Key West, Florida, to New York City. Rates of sea level rise in the Gulf of Mexico can be much higher. In Texas and Louisiana, long-term water levels are rising up to about 10 mm per year. This is having disastrous consequences in the form of wetlands loss in the region, estimated to be as much as 65 km2 per year in the Mississippi Delta area of Louisiana alone. Beach erosion is also significant along both the Gulf and Atlantic coasts, resulting in ever-increasing exposure of fixed structures to the damaging impacts of storms. The especially high rates of sea level rise in Louisiana and Texas are a result of their particular geomorphology, and anthropogenic alterations in the form of sediment diversion and withdrawal of underground fluids. The average long-term local rate of sea level rise on the rest of the U.S. East and Gulf coasts when corrected for glacial isostatic adjustment is about 2 mm per year, in conformity with 20th century global sea level rise. U.S. East and Gulf coast tide gauge records also have regionally coherent low frequency (decadal and longer) variations that need to be understood because of their impact on wetlands loss, and to enable accurate determination of long-term trends of sea level rise.
Horizontal movements of Atlantic blue marlin (Makaira nigricans) in the Gulf of Mexico
Kraus, R.T.; Wells, R.J.D.; Rooker, J.R.
2011-01-01
We examined movements of Atlantic blue marlin (Makaira nigricans) from the Gulf of Mexico based upon 42 pop-up archival transmitting (PAT) tags. Long deployments (including one 334-day track) revealed diverse movement patterns within the Gulf of Mexico. North-south seasonal changes in blue marlin distribution showed strong correspondence with established seasonal patterns of sea surface temperature and primary production. During the summer spawning season, blue marlin utilized outer shelf and shelf edge waters in the northern Gulf of Mexico, and longer duration tracks indicated overwintering habitats in the Bay of Campeche. Egress occurred throughout the year and was difficult to determine because some tracks ended in the Straits of Florida (n = 3) while other tracks recorded movement through it or the Yucatan Channel (n = 4). Our results indicate that Atlantic blue marlin have a more restricted geographic range of habitats than previously recognized and that the Gulf of Mexico provides spatially dynamic suitable habitat that is utilized year-round through seasonal movements. ?? 2011 Springer-Verlag.
Northern Gulf of Mexico: USGS science contributions to a resilient coast, 2006-2011
,
2007-01-01
The devastating hurricane season of 2005 challenged U.S. Geological Survey (USGS) to develop a science base for resource managers and policy makers that could provide an understanding of the multiple stressors and influence affecting the northern Gulf of Mexico coast and to rack changes in linked coastal systems. The complexity of the Gulf Coast requires a science strategy for data collection and data reporting that is consistent across regional ecosystems and that can be applied to both short-term and long-term responses to stressors.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-21
... the Gulf of Mexico; Southeast Data, Assessment, and Review (SEDAR); Public Meetings AGENCY: National...: Notice of SEDAR Workshops for Gulf of Mexico red snapper Lutjanus campechanus. SUMMARY: The SEDAR assessment of the Gulf of Mexico stock of red snapper will consist of a series of three workshops: a Data...
A Broadband Investigation of the Texas/Gulf of Mexico Passive Margin
NASA Astrophysics Data System (ADS)
Evanzia, D.; Ainsworth, R.; Pratt, K. W.; Pulliam, J.; Gurrola, H.
2012-12-01
The lithosphere of central and east Texas underwent two cycles of continental rifting and orogeny from the formation of Laurentia and assembly through the breakup of Pangea. The craton itself, exposed in the Llano uplift of central Texas, formed ~1.4 Ga as part of the great expanse of Mesoproterozoic crust that makes up southern Laurentia. Some of this crust was deformed during the Grenville orogeny ~1.1 Ga. Southern Laurentia was subsequently stable until rifting began in Cambrian time (~530 Ma). Suturing of Gondwana to Laurentia (310-290 Ma) during the assembly of Pangea formed the Ouachita orogen in west Texas. Sometime before 200 Ma rifting was initiated, opening the Gulf of Mexico (GoM). In north and east Texas the Ouachita front lies north of GoM rifting but, according to deep seismic data, Ouachita structures appear to coincide with GoM rifting in south and central Texas. This suggests that rifting in that region occurred along structures that were weakened previously by Ouachita deformation and reactivated during the Jurassic opening of the GoM. It is not clear whether the process that created the Gulf of Mexico and led to the formation of Texas' Gulf Coast Plain (GCP) is best described as "active" or "passive" rifting. A recent study interpreted the GCP to be a volcanic rifted margin—an active rifting process—using available gravity, magnetic, drilling and geological data, but older studies describe the opening of the GoM as a passive event. In the coastal plain, a large magnetic anomaly suggests that the crust here was modified by volcanism. Seismic data are sparse and of limited quality in the Gulf Coast region so we conducted a 2.5-year broadband seismograph transect across the GCP in an effort to clarify its structure and origin. In all, twenty-three broadband seismographs were deployed in a line from Matagorda Island, in the Gulf of Mexico, to Johnson City, TX, on the uplifted Llano Plateau from July 2010 to December 2012. These seismographs have
Federal Register 2010, 2011, 2012, 2013, 2014
2013-03-12
...: Notice of SEDAR 28 Gulf of Mexico Spanish mackerel and cobia Review Workshop. SUMMARY: The SEDAR 28 assessment of the Gulf of Mexico Spanish mackerel and cobia fisheries will consist of a series of workshops... Workshops, and make recommendations with respect to the stock assessments of Gulf of Mexico Spanish mackerel...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-08-16
... Atlantic, Gulf of Mexico, and Caribbean Fishery Management Councils; in conjunction with NOAA Fisheries, the Atlantic States Marine Fisheries Commission, and the Gulf States Marine Fisheries Commission... the South Atlantic, Gulf of Mexico, and Caribbean; Southeastern Data, Assessment, and Review (SEDAR...
Crust and mantle of the gulf of Mexico
Moore, G.W.
1972-01-01
A SEEMING paradox has puzzled investigators of the crustal structure of the Gulf of Mexico since Ewing et al.1 calculated that a unit area of the rather thick crust in the gulf contains less mass than does a combination of the crust and enough of the upper mantle to make a comparable thickness in the Atlantic Ocean. They also noted that the free-air gravity of the gulf is essentially normal and fails by a large factor to be low enough to reflect the mass difference that they calculated. We propose a solution to this problem. ?? 1972 Nature Publishing Group.
33 CFR 165.T08-290 - Safety Zone; Gulf of Mexico-Johns Pass, Florida.
Code of Federal Regulations, 2010 CFR
2010-07-01
... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone; Gulf of Mexico-Johns... § 165.T08-290 Safety Zone; Gulf of Mexico—Johns Pass, Florida. (a) Regulated area. The Coast Guard is establishing a temporary safety zone on the waters of the Gulf of Mexico, Florida, in the vicinity of the John...
TRAINING - WATER EGRESS - GULF OF MEXICO
1965-04-14
S65-22655 (14 April 1965) --- The Gemini-Titan 4 prime crew is shown aboard the NASA Motor Vessel Retriever in the Gulf of Mexico suiting up for water egress training. Astronaut James A. McDivitt (left) is the command pilot, and astronaut Edward H. White II is the pilot.
Central Gulf of Mexico lease sale draws weak industry response
DOE Office of Scientific and Technical Information (OSTI.GOV)
Koen, A.D.
This paper reports that interest in oil and gas leases in the Gulf of Mexico continued spiraling downward at the latest Minerals Management Service offshore sale. Companies participating in Outer Continental Shelf Sale 139 last week in New Orleans offered 196 bids for 151 blocks in the central Gulf of Mexico. MMS offered 5,213 blocks for lease. The number of tracts receiving bids was the fewest at a central gulf lease sale since 114 tracts garnered high bids totaling $146.4 million at Sale 104 in April 1986. Apparent high bids in Sale 139 totaled $56,195,552, and all bids offered totaledmore » just $65,300,864. Both bidding totals were the lowest in a Gulf of Mexico lease sale since MMS began area-wide gulf leasing at Sale 72 in May 1983. Only 64 of 93 qualified companies participated in Sale 139. Fifty-five companies offered apparent winning bids. By comparison, 123 companies at central gulf lease Sale 131 in March 1991 offered 637 bids totaling $320.5 million for 464 tracts. Apparent high bids last spring totaled $259.9 million. At central gulf lease Sale 123 in March 1990, high bids totaled $427.4 million for 538 tracts. In that sale, BP Exploration Inc. led all bidders, exposing $78 million in 79 high bids, including 60 for deepwater tracts. Since then, interest in deepwater tracts has waned in part because of sagging oil and gas prices as U.S. operators sought bigger prospects outside the U.S. Ironically, Sale 139 was dominated by the U.S. subsidiary of an Italian holding company.« less
Inorganic Carbon and pH in the Gulf of Mexico: Understanding the Deepwater Horizon Region
NASA Astrophysics Data System (ADS)
Young, J.; Yvon-Lewis, S. A.; Bianchi, T. S.; Shields, M. R.; Du, M.
2014-12-01
The breakdown and respiration of oil compounds may contribute to the dissolved inorganic carbon (DIC) pool and thus ocean acidification. The Gulf of Mexico (GOM) has an abundance of natural seeps as well as numerous man-made structures that could provide a source of hydrocarbons to the water column. Samples of seawater were collected on the first GISR (Gulf Integrated Spill Research) cruise (G01) during the first week of July 2012. This cruise covered an area of ~1360 km2 roughly centered on the site of the Deepwater Horizon disaster. Alkalinity profiles for the southeastern most stations indicate lower (~100 μmol/kg) alkalinities at depth when compared to other stations sampled. This results in calculated pHs that are ~0.5 units lower at depth than they are at the other stations. Another group of stations show increased DIC concentrations on the order of 100-150 μmol/kg higher than average at depths at 800 m and 1200 m leading to calculated pHs about 0.2 to 0.4 below average for those depths in all of the stations sampled. These features may or may not be persistent in this region, and the elevated DIC concentrations may be related to organic matter (petroleum or other) oxidation. Samples were collected from this same region 2 years later (June 2014) and the persistence of these features will be discussed in the context of linkages with organic carbon respiration and low pHs.
SAR observations in the Gulf of Mexico
NASA Technical Reports Server (NTRS)
Sheres, David
1992-01-01
The Gulf of Mexico (GOM) exhibits a wealth of energetic ocean features; they include the Loop Current with velocities of about 2 m/s and strong shear fronts, mesoscale eddies, double vortices, internal waves, and the outflow of the 'Mighty Mississippi' river. These energetic features can have a strong impact on the economies of the states surrounding the Gulf. Large fisheries, oil and gas production as well as pollution transport are relevant issues. These circulation features in the Gulf are invisible to conventional IR and visible satellite imagery during the Summer months due to cloud cover and uniform surface temperatures. Synthetic Aperture Radar (SAR) imagery of the Gulf does penetrate the cloud cover and shows a rich assembly of features there year-round. Below are preliminary results from GOM SAR imagery taken by SEASAT in 1978 and by the AIRSAR program in 1991.
Oceanic Situational Awareness Over the Gulf of Mexico
NASA Technical Reports Server (NTRS)
Welch, Bryan; Greenfeld, Israel
2005-01-01
Air traffic control (ATC) mandated, aircraft separations over the oceans impose a limitation on traffic capacity for a given corridor, given the projected traffic growth over the Gulf of Mexico. The separations result from a lack of acceptable situational awareness over oceans where radar position updates are not available. This study considers the use of Automatic Dependent Surveillance (ADS) data transmitted over a commercial satellite communications system as an approach to provide ATC with the needed situational awareness and thusly allow for reduced aircraft separations. This study uses Federal Aviation Administration data from a single day for the Gulf of Mexico to analyze traffic loading to be used as a benchmark against which to compare several approaches for coordinating data transmissions from the aircraft to the satellites.
78 FR 31519 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-05-24
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS... Advisory Panel meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of... Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607. FOR FURTHER...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-08-27
... Process Webinar for Gulf of Mexico and South Atlantic Spanish Mackerel and Cobia AGENCY: National Marine... of SEDAR 28 Gulf of Mexico and South Atlantic Spanish mackerel and cobia assessment webinar. SUMMARY: The SEDAR 28 assessment of the Gulf of Mexico and South Atlantic Spanish mackerel and cobia fisheries...
Towards the creation of a multi-institutional HF Radar Network in the Gulf of Mexico.
NASA Astrophysics Data System (ADS)
Flores-vidal, X.; Flament, P. J.; Durazo, R.; Navarro, L. F.; Salles, P.; Alvarez, P.; Carrillo, L.; Kurczyn, J. A.; Ulloa, M. J.; Rodriguez, I.; Toro Valencia, V. G.; Marin, M.; Perales, H.; Sanay, R.
2016-12-01
The Gulf of Mexico is source of important resources for both Mexico and USA, its beaches and coasts bring economical resources for these countries through the generation of jobs on the fisheries, touristic and industrial sectors. However, systematic monitoring is still necessary to evaluate its health and dynamics. This work is part of a multi-institutional project named "Implementation of oceanographic observational networks (physical, geochemical and ecological) to generate scenarios for possible contingencies related to the exploration and production of hydrocarbons in the deep waters of the Gulf of Mexico" (funded by SENER-CONACyT) which is an unprecedented Mexican joint effort to better understand the dynamics in the Gulf of Mexico. We will present the first actions towards the creation of the Mexican multi-Institutional HF Radar Network, which will allow us to synoptically map in real time the sea surface currents up to 200 km offshore. We expect to attract collaborations with the active or ongoing USA HF radar stations and institutions along the Gulf of Mexico, as well as to share methodologies and to evaluate standard data formats. The Radar Network in the Gulf of Mexico is planned to be active during 2017-2018, and it is expected to be permanent.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-11-28
... Collection; Comment Request; Gulf of Mexico Fishery Management Council Stakeholder Communication Survey... Gulf of Mexico Fishery Management Council (Council) has adopted a five-year strategic communications plan that requires the Communications staff to not only implement specific outreach and education...
NASA Earth Observations Track the Gulf Oil Spill
NASA Technical Reports Server (NTRS)
Jones, Jason B.; Childs, Lauren
2010-01-01
The NASA Applied Sciences Program created the Gulf of Mexico Initiative (GOMI) in 2007 "to enhance the region s ability to recover from the devastating hurricanes of 2005 and to address its coastal management issues going into the future." The GOMI utilizes NASA Earth science assets to address regional priorities defined by the Gulf of Mexico Alliance, a partnership formed by the states of Alabama, Florida, Louisiana, Mississippi, and Texas, along with 13 federal agencies and 4 regional organizations to promote regional collaboration and enhance the ecological and economic health of the Gulf of Mexico. NASA's GOMI is managed by the Applied Science and Technology Project Office at Stennis Space Center and has awarded over $18 million in Gulf of Mexico research since 2008. After the Deepwater Horizon oil spill, GOMI personnel assisted members of the Gulf of Mexico Alliance with obtaining NASA remote sensing data for use in their oil spill response efforts.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-05-13
... Region, in collaboration with the Gulf of Mexico Fishery Management Council (Council) intends to prepare... total recreational red snapper quota that could be allocated among regions. NMFS, in collaboration with... even if a region has remaining quota. NMFS, in collaboration with the Council, will develop a DEIS to...
Helicopter crashes related to oil and gas operations in the Gulf of Mexico.
Baker, Susan P; Shanahan, Dennis F; Haaland, Wren; Brady, Joanne E; Li, Guohua
2011-09-01
The hazards inherent in flight operations in the Gulf of Mexico prompted investigation of the number and circumstances of crashes related to oil and gas operations in the region. The National Transportation Safety Board (NTSB) database was queried for helicopter crashes during 1983 through 2009 related to Gulf of Mexico oil or gas production. The crashes were identified based on word searches confirmed by a narrative statement indicating that the flight was related to oil or gas operations. During 1983-2009, the NTSB recorded a total of 178 helicopter crashes related to oil and gas operations in the Gulf of Mexico, with an average of 6.6 crashes per year (5.6 annually during 1983-1999 vs. 8.2 during 2000-2009). The crashes resulted in a total of 139 fatalities, including 41 pilots. Mechanical failure was the most common precipitating factor, accounting for 68 crashes (38%). Bad weather led to 29 crashes (16%), in which 40% of the 139 deaths occurred. Pilot error was cited by the NTSB in 83 crashes (47%). After crashes or emergency landings on water, 15 helicopters sank when flotation devices were not activated automatically or by pilots. Mechanical failure, non-activation of flotation, and pilot error are major problems to be addressed if crashes and deaths in this lethal environment are to be reduced.
77 FR 59881 - Special Load Line Exemption for the Gulf of Mexico: Petition for Rulemaking
Federal Register 2010, 2011, 2012, 2013, 2014
2012-10-01
... Line Exemption for the Gulf of Mexico: Petition for Rulemaking AGENCY: Coast Guard, DHS. ACTION: Notice... Mexico. The requested exemption would allow non-load line river barges to transit along the west coast of... special load line exemption on the Gulf of Mexico. All comments received will be posted, without change...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-04-26
... . SUPPLEMENTARY INFORMATION: The Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils, in... Management Councils and NOAA Fisheries Southeast Regional Office, Highly Migratory Species Management... fishermen, environmentalists, and non- governmental organizations (NGOs); international experts; and staff...
Mapping the Intricacies of the Gulf of Mexico's Circulation
NASA Astrophysics Data System (ADS)
Lugo-Fernández, Alexis; Green, Rebecca E.
2011-01-01
From hosting key shipping lines, drilling platforms, and commercial fisheries, to sustaining mangrove swamps that shelter the coastline from the hurricanes that churn its waters, the Gulf of Mexico is important to the nations surrounding it for socio-economic, ecological, military, political, and scientific reasons. Critical to all of these sectors is the Gulf's circulation—it controls hurricane tracks and intensity, biological productivity, and larvae dispersal. Since 1982, the Environmental Studies Program (ESP) of the U.S. Bureau of Ocean Energy Management, Regulation and Enforcement (BOEMRE) has invested more than $67 million in field and numerical modeling studies to improve our understanding of the Gulf's circulation (see Figure 1). ESP-funded research has covered a broad array of topics, some applied and some basic. Studies carried out on behalf of the bureau reflect the bureau's information needs, stakeholder input, and offshore energy exploration and development trends. All ESP studies culminate in a technical report—127 technical reports on physical oceanography are publicly available (see http://www.gomr.boemre.gov/homepg/regulate/environ/techsumm/rec_pubs.html). Additionally, more than 100 peer-reviewed publications have been issued on the Gulf's physical oceanography and circulation. The AGU Geophysical Monograph Circulation in the Gulf of Mexico: Observations and Models, the very first circulation overview since 1972, was funded by ESP. Additionally, data collected during fieldwork are deposited in national archives for public dissemination.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-04-20
... . SUPPLEMENTARY INFORMATION: The South Atlantic, Gulf of Mexico, and Caribbean Fishery Management Councils; in conjunction with NOAA Fisheries, the Atlantic States Marine Fisheries Commission, and the Gulf States Marine... the South Atlantic, Gulf of Mexico, and Caribbean; Southeast Data, Assessment, and Review (SEDAR...
Code of Federal Regulations, 2010 CFR
2010-10-01
... the Gulf of Mexico and its inlets. 195.413 Section 195.413 Transportation Other Regulations Relating... Maintenance § 195.413 Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets. (a... shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in...
Code of Federal Regulations, 2013 CFR
2013-10-01
... the Gulf of Mexico and its inlets. 195.413 Section 195.413 Transportation Other Regulations Relating... Maintenance § 195.413 Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets. (a... shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in...
Code of Federal Regulations, 2011 CFR
2011-10-01
... the Gulf of Mexico and its inlets. 195.413 Section 195.413 Transportation Other Regulations Relating... Maintenance § 195.413 Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets. (a... shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in...
Code of Federal Regulations, 2012 CFR
2012-10-01
... the Gulf of Mexico and its inlets. 195.413 Section 195.413 Transportation Other Regulations Relating... Maintenance § 195.413 Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets. (a... shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in...
Code of Federal Regulations, 2014 CFR
2014-10-01
... the Gulf of Mexico and its inlets. 195.413 Section 195.413 Transportation Other Regulations Relating... Maintenance § 195.413 Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets. (a... shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in...
GRIIDC: A Data Repository for Gulf of Mexico Science
NASA Astrophysics Data System (ADS)
Ellis, S.; Gibeaut, J. C.
2017-12-01
The Gulf of Mexico Research Initiative Information & Data Cooperative (GRIIDC) system is a data management solution appropriate for any researcher sharing Gulf of Mexico and oil spill science data. Our mission is to ensure a data and information legacy that promotes continual scientific discovery and public awareness of the Gulf of Mexico ecosystem. GRIIDC developed an open-source software solution to manage data from the Gulf of Mexico Research Initiative (GoMRI). The GoMRI program has over 2500 researchers from diverse fields of study with a variety of attitudes, experiences, and capacities for data sharing. The success of this solution is apparent through new partnerships to share data generated by RESTORE Act Centers of Excellence Programs, the National Academies of Science, and others. The GRIIDC data management system integrates dataset management planning, metadata creation, persistent identification, and data discoverability into an easy-to-use web application. No specialized software or program installations are required to support dataset submission or discovery. Furthermore, no data transformations are needed to submit data to GRIIDC; common file formats such as Excel, csv, and text are all acceptable for submissions. To ensure data are properly documented using the GRIIDC implementation of the ISO 19115-2 metadata standard, researchers submit detailed descriptive information through a series of interactive forms and no knowledge of metadata or xml formats are required. Once a dataset is documented and submitted the GRIIDC team performs a review of the dataset package. This review ensures that files can be opened and contain data, and that data are completely and accurately described. This review does not include performing quality assurance or control of data points, as GRIIDC expects scientists to perform these steps during the course of their work. Once approved, data are made public and searchable through the GRIIDC data discovery portal and the Data
Hydrocarbon reservoirs of Gulf of Mexico
DOE Office of Scientific and Technical Information (OSTI.GOV)
Ray, P.K.
1988-01-01
The statistical distribution of over 12,000 producible hydrocarbon reservoirs from various biostratigraphic intervals of the Gulf of Mexico is presented. The average number, thickness, volume, subsurface depth, and ecozone of depositional environments of the reservoirs are grouped according to biostratigraphic intervals, trends, and geographic areas. The upper Pliocene and Pleistocene reservoirs account for more than 77% of the total number. Within the Miocene trend, Bigenerina H in the western Gulf of Bigenerina A and Bigenerina 2 in the central Gulf show significant concentration of reservoirs. The average depth of production for all trends gets deeper, both from west and east,more » toward Ship Shoal-South Timbalier areas. The average thickness varies slightly between trends; however, variation between areas is more significant. A significant majority of the reservoirs of all trends in the entire Gulf is reported from the outer shelf-upper slope ecozones (E3 and E4). According to volume, the E3-E5 reservoirs can be classified into three groups; larger than 10,000 acre-ft/reservoir, 5,000 to 10,000 acre-ft/reservoir, and smaller than 5,000 acre-ft/reservoir.« less
Federal Register 2010, 2011, 2012, 2013, 2014
2013-06-07
... INFORMATION: The Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils, in conjunction..., and Caribbean Fishery Management Councils and NOAA Fisheries Southeast Regional Office, Highly Migratory Species (HMS) Management Division, and Southeast Fisheries Science Center. Participants include...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-08-14
... Fisheries, Fishing, Gulf, Quotas, Red snapper. Dated: August 8, 2013. Alan D. Risenhoover, Director, Office... increase the 2013 commercial and recreational quotas for red snapper in the Gulf of Mexico (Gulf) reef fish fishery and re-open the red snapper recreational season for 2013. This proposed rule is intended to help...
Code of Federal Regulations, 2013 CFR
2013-07-01
... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and the... DEFENSE NAVIGATION REGULATIONS § 207.180 All waterways tributary to the Gulf of Mexico (except the... with the Gulf of Mexico between St. Marks, Fla., and the Rio Grande, Tex. (both inclusive), and the...
Code of Federal Regulations, 2014 CFR
2014-07-01
... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and the... DEFENSE NAVIGATION REGULATIONS § 207.180 All waterways tributary to the Gulf of Mexico (except the... with the Gulf of Mexico between St. Marks, Fla., and the Rio Grande, Tex. (both inclusive), and the...
Code of Federal Regulations, 2012 CFR
2012-07-01
... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and the... DEFENSE NAVIGATION REGULATIONS § 207.180 All waterways tributary to the Gulf of Mexico (except the... with the Gulf of Mexico between St. Marks, Fla., and the Rio Grande, Tex. (both inclusive), and the...
Report says Gulf of Mexico oil spill assessment should include ecosystem services approach
NASA Astrophysics Data System (ADS)
Showstack, Randy
2011-11-01
The oil spill in the Gulf of Mexico that resulted from the 20 April 2010 explosion of the Deepwater Horizon (DWH) platform drilling the Macondo well was so massive and affected such a large and deep region of the gulf that the process of determining environmental damage in the region should be more encompassing than a typical habitat and resource equivalency approach, according to a 9 November report by the U.S. National Research Council (NRC). The congressionally requested report calls for an ecosystem services approach to complement ongoing approaches to the damage evaluation for the spill that is being conducted through the ongoing Natural Resources Damage Assessment (NRDA) process triggered by the U.S. Oil Pollution Act (OPA) of 1990.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-12-21
... exclusive economic zone (EEZ) of the Gulf of Mexico (Gulf) through this temporary rule. NMFS has determined... maintaining the commercial and recreational quotas for red snapper in 2013 at the 2012 level. The intent of...
NASA Astrophysics Data System (ADS)
Quattrochi, D. A.; Estes, M. G., Jr.; Al-Hamdan, M. Z.; Thom, R.; Woodruff, D.; Judd, C.; Ellis, J. T.; Swann, R.; Johnson, H., III
2010-12-01
New data, tools, and capabilities for decision making are significant needs in the northern Gulf of Mexico and other coastal areas. The goal of this project is to support NASA’s Earth Science Mission Directorate and its Applied Science Program and the Gulf of Mexico Alliance by producing and providing NASA data and products that will benefit decision making by coastal resource managers and other end users in the Gulf region. Data and research products are being developed to assist coastal resource managers adapt and plan for changing conditions by evaluating how climate changes and urban expansion will impact land cover/land use (LCLU), hydrodynamics, water properties, and shallow water habitats; to identify priority areas for conservation and restoration; and to distribute datasets to end-users and facilitating user interaction with models. The proposed host sites for data products are NOAA’s National Coastal Data Development Center Regional Ecosystem Data Management, and Mississippi-Alabama Habitat Database. Tools will be available on the Gulf of Mexico Regional Collaborative website with links to data portals to enable end users to employ models and datasets to develop and evaluate LCLU and climate scenarios of particular interest. These data will benefit the Mobile Bay National Estuary Program in ongoing efforts to protect and restore the Fish River watershed and around Weeks Bay National Estuarine Research Reserve. The usefulness of data products and tools will be demonstrated at an end-user workshop.
NASA Technical Reports Server (NTRS)
Quattrochi, Dale; Estes, Maurice, Jr.; Al-Hamdan, Mohammad; Thom, Ron; Woodruff, Dana; Judd, Chaeli; Ellis, Jean; Swann, Roberta; Johnson, Hoyt, III
2010-01-01
New data, tools, and capabilities for decision making are significant needs in the northern Gulf of Mexico and other coastal areas. The goal of this project is to support NASA s Earth Science Mission Directorate and its Applied Science Program and the Gulf of Mexico Alliance by producing and providing NASA data and products that will benefit decision making by coastal resource managers and other end users in the Gulf region. Data and research products are being developed to assist coastal resource managers adapt and plan for changing conditions by evaluating how climate changes and urban expansion will impact land cover/land use (LCLU), hydrodynamics, water properties, and shallow water habitats; to identify priority areas for conservation and restoration; and to distribute datasets to end-users and facilitating user interaction with models. The proposed host sites for data products are NOAA s National Coastal Data Development Center Regional Ecosystem Data Management, and Mississippi-Alabama Habitat Database. Tools will be available on the Gulf of Mexico Regional Collaborative website with links to data portals to enable end users to employ models and datasets to develop and evaluate LCLU and climate scenarios of particular interest. These data will benefit the Mobile Bay National Estuary Program in ongoing efforts to protect and restore the Fish River watershed and around Weeks Bay National Estuarine Research Reserve. The usefulness of data products and tools will be demonstrated at an end-user workshop.
Code of Federal Regulations, 2012 CFR
2012-07-01
... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and... WATERWAYS NAVIGATION REGULATIONS § 162.75 All waterways tributary to the Gulf of Mexico (except the... waters of the U.S. tributary to or connected by other waterways with the Gulf of Mexico between St. Marks...
Code of Federal Regulations, 2013 CFR
2013-07-01
... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and... WATERWAYS NAVIGATION REGULATIONS § 162.75 All waterways tributary to the Gulf of Mexico (except the... waters of the U.S. tributary to or connected by other waterways with the Gulf of Mexico between St. Marks...
Code of Federal Regulations, 2014 CFR
2014-07-01
... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and... WATERWAYS NAVIGATION REGULATIONS § 162.75 All waterways tributary to the Gulf of Mexico (except the... waters of the U.S. tributary to or connected by other waterways with the Gulf of Mexico between St. Marks...
DOE Office of Scientific and Technical Information (OSTI.GOV)
MEINHOLD,A.F.; HOLTZMAN,S.
1998-06-01
Offshore production of oil and gas is accompanied by a saline wastewater, called produced water. Produced water discharges to the Gulf of Mexico often contain elevated concentrations of radionuclides that occur naturally in the geologic reservoir along with the oil and gas. These radionuclides may accumulate in organisms that live near offshore oil and gas structures. Because recreational fishing in the Gulf of Mexico is concentrated near oil and gas platforms, there is the potential for increased risks to recreational fishermen from the ingestion of radionuclides in fish caught near produced water discharges. This analysis investigated the potential risk tomore » recreational fishermen from radium and lead-210 in offshore produced water discharges to the Gulf of Mexico. The assessment used data collected at eight discharging offshore platforms and two reference locations. These data were collected in a USDOE funded project titled ``Environmental and Economic Assessment of Discharges from Gulf of Mexico Region Oil and Gas Operations'', here called the USDOE Field Study. The risk assessments were done to support risk managers in developing regulations and permits for offshore discharges of produced water.« less
Alternative surveillance technology for the Gulf of Mexico
DOT National Transportation Integrated Search
2004-04-26
In the Gulf of Mexico, there are two major operating aviation users: low altitude offshore and high altitude. The low altitude offshore operators are primarily helicopter fleets supporting the oil and gas exploration efforts; their traffic typically ...
Lessons learned from a one-dimensional water quality model for the Gulf of Mexico
Hypoxia in the northern Gulf of Mexico has been a major concern for many years. Several water quality models have attempted to describe the link between high nutrient loads from the Mississippi River and hypoxia in the Gulf of Mexico with varied success. Here we describe the dev...
GULF OF MEXICO HYPOXIA MONITORING AND MODELING
Greene, Richard M. and Russell G. Kreis. In press. Gulf of Mexico Hypoxia Monitoring and Modeling (Abstract). To be presented at the EPA Science Forum: Healthy Communities and Ecosystems, 1-3 June 2004, Washington, DC. 1 p. (ERL,GB R990).
Oxygen-depleted or hypoxic bottom...
ECONOMICS AND APPRAISAL OF CONVENTIONAL OIL AND GAS IN THE WESTERN GULF OF MEXICO.
Attanasi, E.D.; Haynes, John L.
1984-01-01
The oil and gas industry frequently appraises undiscovered oil and gas resources on a regional basis to decide whether to start or continue exploration programs. The appraisals are of little value unless conditioned by estimates of the costs of finding and producing the resources. This paper presents an economic appraisal of undiscovered oil and gas resources in the western Gulf of Mexico. Also presented are a description of the model used to make the assessment, results of a sensitivity analysis, and a discussion of the implications of the results to the industry. The appraisal is shown to be relatively robust to changes in physical and engineering assumptions. Because the number of commercial discoveries was found to be quite sensitive to economic conditions, the analysis has important implications in terms of forecasting future industry drilling and other associated activities in the western Gulf of Mexico.
HIGH CYANOBACTERIAL ABUNDANCE IN GULF OF MEXICO ESTUARIES
Aquatic phytoplankton comprise a wide variety of taxa spanning more than 2 orders of magnitude in size, yet studies of estuarine phytoplankton often overlook the picoplankton, particularly chroococcoid cyanobacteria (c.f. Synechocococcus). Three Gulf of Mexico estuaries (Apalachi...
33 CFR 334.763 - Naval Support Activity Panama City; Gulf of Mexico; restricted area.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Naval Support Activity Panama City; Gulf of Mexico; restricted area. 334.763 Section 334.763 Navigation and Navigable Waters CORPS OF....763 Naval Support Activity Panama City; Gulf of Mexico; restricted area. (a) The area. The area is...
33 CFR 334.763 - Naval Support Activity Panama City; Gulf of Mexico; restricted area.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Naval Support Activity Panama City; Gulf of Mexico; restricted area. 334.763 Section 334.763 Navigation and Navigable Waters CORPS OF....763 Naval Support Activity Panama City; Gulf of Mexico; restricted area. (a) The area. The area is...
33 CFR 334.763 - Naval Support Activity Panama City; Gulf of Mexico; restricted area.
Code of Federal Regulations, 2011 CFR
2011-07-01
... City; Gulf of Mexico; restricted area. 334.763 Section 334.763 Navigation and Navigable Waters CORPS OF....763 Naval Support Activity Panama City; Gulf of Mexico; restricted area. (a) The area. The area is... enforced by the Commanding Officer, Naval Support Activity, Panama City Florida, and such agencies as he...
33 CFR 334.763 - Naval Support Activity Panama City; Gulf of Mexico; restricted area.
Code of Federal Regulations, 2010 CFR
2010-07-01
... City; Gulf of Mexico; restricted area. 334.763 Section 334.763 Navigation and Navigable Waters CORPS OF....763 Naval Support Activity Panama City; Gulf of Mexico; restricted area. (a) The area. The area is... enforced by the Commanding Officer, Naval Support Activity, Panama City Florida, and such agencies as he...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-10-24
... Migratory Pelagic Resources in the Gulf of Mexico and Atlantic Region; Amendment 18 AGENCY: National Marine... rule; request for comments. SUMMARY: NMFS proposes regulations to implement Amendment 18 to the Fishery..., Amendment 18 would set allocations for Atlantic cobia and establish control rules for king mackerel, Spanish...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-29
... Resources in the Gulf of Mexico and Atlantic Region; Amendment 18 AGENCY: National Marine Fisheries Service... Management Councils (Councils) have submitted Amendment 18 to the Fishery Management Plan for the Coastal... addition, Amendment 18 proposes to set allocations and establish control rules for Atlantic group cobia and...
Reconnaissance Strategy for Seep Chemosynthetic Communities in the Gulf of Mexico
NASA Astrophysics Data System (ADS)
MacDonald, I. R.; Roberts, H. H.; Fisher, C. R.; Bernard, B. B.; Joye, S.; Carney, R.; Hunt, J.; Shedd, W.
2007-05-01
The Continental Slope of the Gulf of Mexico hosts diverse chemosynthetic communities at oil and gas seeps. Exploration is needed to extend knowledge of the Gulf of Mexico chemosynthetic ecosystem in the zones anticipated to receive energy exploration and production activities over the coming decades. A nested survey approach can be used to identify representative sampling sites within this vast offshore area. Potential sites where chemosynthetic community could occur are selected on the basis geophysical, geochemical, and satellite remote-sensing indicators. Photo-reconnaissance using cost-effective camera systems is then used to confirm the presences or absence of chemosynthetic communities at high-probability sites. Follow-up sampling can then proceed with submersibles or ROVs to acquire tissue and or geochemical samples. However, because access is limited, submersible dives may not be possible at all sites. Two examples of this approach have recently been applied in the northern and southern Gulf of Mexico, respectively. We compared community characterizations obtained from the initial reconnaissance with more detailed characterizations forthcoming from submersible sampling. Our results show that major differences in community type and geochemical substrata are evident from preliminary reconnaissance, while details of animal densities and species compositions require targeted sampling with submersibles. However, given the limited access to submersibles, cost-effective surveys with deep-sea camera systems would greatly expand understanding of the zoogeography of chemosynthetic fauna in the Gulf of Mexico and Caribbean Sea.
Gulf of Mexico: Dealing with Change in a Marginal Sea
NASA Astrophysics Data System (ADS)
Rabalais, N. N.
2017-12-01
The Gulf of Mexico is shared by the United States, Mexico and Cuba and requires collaborative work for integrated management to conserve its natural assets and derived benefits, as well as to foster the overall regional economic wealth. Many rivers drain into the Gulf, most notably the Mississippi, which ranks among global rivers 4th in discharge, 7th in sediment load and 3rd in drainage area, and accounts for about 90 percent of the freshwater inflow to the Gulf. The Mississippi River proper empties onto a narrow ( 20 km wide) continental shelf, and its tributary, the Atchafalaya River, that carries about one third of the total flow discharges onto the broad ( 200 km) and shallow part of the shelf. The entrainment of the Mississippi River discharge into the Louisiana Coastal Current results in the semblance of an extended estuary across much of the inner to mid continental shelf for much of the year. The nitrogen load from the Mississippi River to the adjacent continental shelf over the last half century has increased by 300 per cent. As a result, eutrophication and hypoxia have developed in this stratified coastal system with implications for biogeochemical cycles and valued resources. While there is recognition that over half of the nitrogen sources come from agricultural practices widespread across the watershed, the environmental goal of bringing a 32-year average 13,800 square kilometers of bottom-water hypoxia to less than 5,000 square kilometers is being realized through voluntary and incentive-based activities, designed within a series of subbasin and state strategies. Some activities funded by the US Department of Agriculture for directed nutrient reduction projects and several small-scale voluntary actions towards sustainable and ecologically sound agriculture show promise, but large-scale social-political solutions do not exist now nor will they for the forseeable future. The coastal waters adjacent to the Mississippi River are just one of many such
Federal Register 2010, 2011, 2012, 2013, 2014
2010-08-24
... INFORMATION: The Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils, in conjunction... Caribbean Fishery Management Councils and NOAA Fisheries Southeast Regional Office and Southeast Fisheries..., biologists, and researchers; constituency representatives including fishermen, environmentalists, and NGO's...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-03-15
... Atlantic, and Caribbean Fishery Management Councils, in conjunction with NOAA Fisheries and the Atlantic... Workshops are appointed by the Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils and NOAA Fisheries Southeast Regional Office, Highly Migratory Species Management Division, and Southeast...
75 FR 65298 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-10-22
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Notice of a public meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a sector separation workshop. DATES...
77 FR 62217 - Gulf of Mexico Fishery Management Council; Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-10-12
... Mexico Fishery Management Council; Public Meetings AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Notice of public meetings. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene a public meeting. DATES: The...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-10-25
..., Shrimp, and Coral and Coral Reefs Fishery Management Plans for the Gulf of Mexico (FMPs) as prepared and... fisheries for reef fish, red drum, shrimp, and coral and coral reefs of the Gulf of Mexico (Gulf) are... remove octocorals from the Coral and Coral Reefs FMP. Most octocorals are harvested in waters under the...
NASA MISR Images Gulf of Mexico Oil Slick
2010-05-06
This image from NASA Terra satellite was acquired on May 1, 2010. The red symbol indicates the approximate position of the Deepwater Horizon platform and the source of the oil slick which resulted in a significant oil spill in the Gulf of Mexico.
The significance of the many wastewater discharges in the Gulf of Mexico region as sources of trace metal contamination to indigenous biota in nearby coastal areas is relatively unknown. The primary objective of this baseline survey was to provide some insight on this issue by d...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-11-23
...: Notice of Cancellation of SEDAR 28 Gulf of Mexico Spanish mackerel and cobia assessment Webinar. SUMMARY: The SEDAR 28 assessment of the Gulf of Mexico Spanish mackerel and cobia fisheries will consist of a...
76 FR 19750 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-04-08
... control rule, establish a generic framework procedure for implementing management changes, establish the... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Reef Fish Advisory...
75 FR 23245 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-05-03
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Standing, Special Reef Fish and Special Red Drum Scientific and Statistical Committees. DATES: The meeting will convene...
76 FR 23997 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-04-29
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Standing, Special Mackerel and Special Reef Fish Scientific and Statistical Committees (SSC). DATES: The meeting...
Geochemical constraints on the distribution of gas hydrates in the Gulf of Mexico
Paull, C.K.; Ussler, W.; Lorenson, T.; Winters, W.; Dougherty, J.
2005-01-01
Gas hydrates are common within near-seafloor sediments immediately surrounding fluid and gas venting sites on the continental slope of the northern Gulf of Mexico. However, the distribution of gas hydrates within sediments away from the vents is poorly documented, yet critical for gas hydrate assessments. Porewater chloride and sulfate concentrations, hydrocarbon gas compositions, and geothermal gradients obtained during a porewater geochemical survey of the northern Gulf of Mexico suggest that the lack of bottom simulating reflectors in gas-rich areas of the gulf may be the consequence of elevated porewater salinity, geothermal gradients, and microbial gas compositions in sediments away from fault conduits.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-12-19
...NMFS announces the closure date of the recreational season for red snapper in the exclusive economic zone (EEZ) of the Gulf of Mexico (Gulf) for the 2014 fishing season through this temporary rule. Federal waters of the Gulf will close to red snapper recreational harvest at 12:01 a.m., July 11, 2014. This closure is necessary to prevent the recreational sector from exceeding its quota for the fishing year and prevent overfishing of the Gulf red snapper resource.
Gulf of Mexico Data Atlas: Digital Data Discovery and Access
NASA Astrophysics Data System (ADS)
Rose, K.
2014-12-01
The Gulf of Mexico Data Atlas is an online data discovery and access tool that allows users to browse a growing collection of ecosystem-related datasets visualized as map plates. Thematically, the Atlas includes updated long-term assessments of the physical, biological, environmental, economic and living marine resource characteristics that indicate baseline conditions of the Gulf of Mexico ecosystems. These data are crucial components of integrated ecosystem assessments and modeling and support restoration and monitoring efforts in the Gulf. A multi-agency executive steering committee including members from international, federal, state, and non-governmental organizations was established to guide Atlas development and to contribute data and expertise. The Atlas currently contains over 235 maps in 70 subject areas. Each map plate is accompanied by a descriptive summary authored by a subject matter expert and each data set is fully documented by metadata in Federal Geographic Data Committee (FGDC)-compliant standards. Source data are available in native formats and as web mapping services (WMS). Datasets are also searchable through an accompanying Map Catalog and RSS feed. The Gulf of Mexico Data Atlas is an operational example of the philosophy of leveraging resources among agencies and activities involved in geospatial data as outlined in the US Department of Interior and FGDC "Geospatial Platform Modernization Roadmap v4 - March 2011". We continue to update and add datasets through existing and new partnerships to ensure that the Atlas becomes a truly ecosystem-wide resource.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-10-22
..., South Atlantic, and Caribbean Fishery Management Councils, in conjunction with NOAA Fisheries and the... are appointed by the Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils and NOAA Fisheries Southeast Regional Office, Highly Migratory Species Management Division, and Southeast...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-11-17
... Atlantic, and Caribbean Fishery Management Councils, in conjunction with NOAA Fisheries and the Atlantic... appointed by the Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils and NOAA Fisheries Southeast Regional Office, HMS Management Division, and Southeast Fisheries Science Center...
75 FR 72793 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-11-26
... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene a meeting of the Standing and Special Reef Fish Scientific and Statistical Committees. DATES: The meeting will convene at 9...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-12-30
.... 100812345-1789-01] RIN 0648-AY73 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Comprehensive Annual Catch Limit Amendment for the South Atlantic AGENCY: National Marine Fisheries Service... Management Plans (FMPs) for the Snapper-Grouper Fishery of the South Atlantic Region (Snapper- Grouper FMP...
Twitchell, David C.; Flocks, James G.; Pendleton, Elizabeth; Baldwin, Wayne E.
2013-01-01
The stratigraphy of sections of three barrier island systems in the northeastern Gulf of Mexico (Apalachicola, Mississippi, and Chandeleur) have been mapped using geophysical and coring techniques to assess the influence of geologic variations in barrier lithosomes and adjoining inner shelf deposits on long-term rates of shoreline change at regional and local scales. Regional scale was addressed by comparing average geologic characteristics of the three areas with mean shoreline-change rates for each area. Regionally, differences in sand volume contained within the part of the barrier lithosome above sea level, sand volume on the inner shelf, and to a lesser extent, sediment grain size correlate with shoreline change rates. Larger sand volumes and coarser grain sizes are found where erosion rates are lower. Local scale was addressed by comparing alongshore variations in barrier island and inner shelf geology with alongshore variations in shoreline change. Locally, long-term shoreline change rates are highest directly shoreward of paleovalleys exposed on the inner shelf. While geology is not the sole explanation for observed differences in shoreline change along these three coastal regions, it is a significant contributor to change variability.
Distribution and movement of suspended sediment in the Gulf of Mexico off the Texas coast
NASA Technical Reports Server (NTRS)
Hunter, R. E.
1973-01-01
ERTS-1 imagery has proven very useful in studies of the distribution of suspended sediment in the Gulf of Mexico off the Texas coast. Moreover, by using suspended matter concentrations as tags on water masses, much information on water movement can be obtained. The utility of suspended sediment as a tracer is dependent on the sediment remaining in suspension long enough to travel an appreciable distance or to be visible on successive images. Although the evidence is not conclusive, it seems likely that much of the suspended sediment in Gulf of Mexico nearshore waters during normal seastate conditions has remained in suspension since the time of its entry into the Gulf of Mexico through rivers and tidal inlets.
Classification of Nortes in the Gulf of Mexico derived from wave energy maps
NASA Astrophysics Data System (ADS)
Appendini, C. M.; Hernández-Lasheras, J.
2016-02-01
Extreme wave climate in the Gulf of Mexico is determined by tropical cyclones and winds from the Central American Cold Surges, locally referred to as Nortes. While hurricanes can have catastrophic effects, extreme waves and storm surge from Nortes occur several times a year, and thus have greater impacts on human activities along the Mexican coast of the Gulf of Mexico. Despite the constant impacts from Nortes, there is no available classification that relates their characteristics (e.g. pressure gradients, wind speed), to the associated coastal impacts. This work presents a first approximation to characterize and classify Nortes, which is based on the assumption that the derived wave energy synthetizes information (i.e. wind intensity, direction and duration) of individual Norte events as they pass through the Gulf of Mexico. First, we developed an index to identify Nortes based on surface pressure differences of two locations. To validate the methodology we compared the events identified with other studies and available Nortes logs. Afterwards, we detected Nortes from the 1986/1987, 2008/2009 and 2009/2010 seasons and used their corresponding wind fields to derive the wave energy maps using a numerical wave model. We used the energy maps to classify the events into groups using manual (visual) and automatic classifications (principal component analysis and k-means). The manual classification identified 3 types of Nortes and the automatic classification identified 5, although 3 of them had a high degree of similarity. The principal component analysis indicated that all events have similar characteristics, as few components are necessary to explain almost all of the variance. The classification from the k-means indicated that 81% of analyzed Nortes affect the southeastern Gulf of Mexico, while a smaller percentage affects the northern Gulf of Mexico and even less affect the western Caribbean.
Gulf of Mexico Helicopter Offshore System Technologies Recommended Development Path
NASA Technical Reports Server (NTRS)
Koenke, Edmund J.; Williams, Larry; Calafa, Caesar
1999-01-01
The National Aeronautics and Space Administration (NASA) Advanced Air Transportation Technologies (AATT) project in cooperation with the Department of Transportation (DOT) Volpe National Transportation Systems Center (VNTSC) contracted with the System Resources Corporation (SRC) for the evaluation of the existing environment and the identification of user and service provider needs in the Gulf of Mexico low-altitude Offshore Sector. The results of this contractor activity are reported in the Gulf of Mexico Helicopter Offshore System Technologies Engineering Needs Assessment. A recommended system design and transition strategy was then developed to satisfy the identified needs within the constraints of the environment. This work, also performed under contract to NASA, is the subject of this report.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-02
... RIN 0648-AY72 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of...) have submitted Amendment 10 to the Fishery Management Plan for the Spiny Lobster Fishery of the Gulf of... actions to revise the lobster species contained within the fishery management unit; revise definitions of...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-12-17
... environmental impact statement (DEIS). SUMMARY: NMFS, Southeast Region, in collaboration with the South Atlantic... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-BD77 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Snapper-Grouper Fishery Off the South Atlantic...
Code of Federal Regulations, 2010 CFR
2010-07-01
... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Gulf of Mexico, southeast of St... AND RESTRICTED AREA REGULATIONS § 334.680 Gulf of Mexico, southeast of St. Andrew Bay East Entrance... the Gulf of Mexico, southeast of St. Andrew Bay East Entrance within a rectangular area beginning at a...
Code of Federal Regulations, 2014 CFR
2014-07-01
... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Gulf of Mexico, southeast of St... AND RESTRICTED AREA REGULATIONS § 334.680 Gulf of Mexico, southeast of St. Andrew Bay East Entrance... the Gulf of Mexico, southeast of St. Andrew Bay East Entrance within a rectangular area beginning at a...
Code of Federal Regulations, 2013 CFR
2013-07-01
... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Gulf of Mexico, southeast of St... AND RESTRICTED AREA REGULATIONS § 334.680 Gulf of Mexico, southeast of St. Andrew Bay East Entrance... the Gulf of Mexico, southeast of St. Andrew Bay East Entrance within a rectangular area beginning at a...
Code of Federal Regulations, 2011 CFR
2011-07-01
... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Gulf of Mexico, southeast of St... AND RESTRICTED AREA REGULATIONS § 334.680 Gulf of Mexico, southeast of St. Andrew Bay East Entrance... the Gulf of Mexico, southeast of St. Andrew Bay East Entrance within a rectangular area beginning at a...
Code of Federal Regulations, 2012 CFR
2012-07-01
... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Gulf of Mexico, southeast of St... AND RESTRICTED AREA REGULATIONS § 334.680 Gulf of Mexico, southeast of St. Andrew Bay East Entrance... the Gulf of Mexico, southeast of St. Andrew Bay East Entrance within a rectangular area beginning at a...
33 CFR 110.194b - Mississippi Sound and Gulf of Mexico, near Petit Bois Island, Miss.
Code of Federal Regulations, 2010 CFR
2010-07-01
... Mexico, near Petit Bois Island, Miss. 110.194b Section 110.194b Navigation and Navigable Waters COAST... Mississippi Sound and Gulf of Mexico, near Petit Bois Island, Miss. (a) The anchorage grounds—(1) Explosives... center located at latitude 30°11′12″, longitude 88°30′07″, in the waters of Gulf of Mexico south of the...
Satellite SAR inventory of Gulf of Mexico oil seeps and shallow gas hydrates
NASA Astrophysics Data System (ADS)
Garcia, O.; MacDonald, I. R.; Zimmer, B.; Shedd, W.; Frye, M.
2009-04-01
.S. territorial waters, with 481 formations, and Mexican territorial waters, with 78 formations. The formations were ground-truthed against a comprehensive database of 3D seismic cubes that cover the entire northern Gulf of Mexico (Frye 2008). Formations defined by SAR slick targets were consistently associated with gas hydrate prone regions of high surface amplitude and migration features in the sub-bottom. Many of the isolated slicks also appeared to be associated with migration features in the seismic data. Temporal variation among the slicks includes examples of intermittent individual vents within a single formation and broad-scale off-again, on-again appearance of slicks over entire images covering the same areas. References: De Beukelaer, S. M., MacDonald, I., Guinnasso, N. L. J. and Murray, J. A. (2003). Distinct side-scan sonar, RADARSAT SAR, and acoustic profiler signatures of gas and oil seeps on the Gulf of Mexico slope. Geo-Mar Lett 23: 177-186 Frye, M. (2008). Preliminary Evaluation of In-Place Gas Hydrate Resources: Gulf of Mexico Outer Continental Shelf. OCS Report, MMS U.S. Department of the Interior. Minerals Management Service. Resource Evaluation Division MacDonald, I., Leifer, I., Sassen, R. and Stine, P. (2002). Transfer of hydrocarbons from natural seeps to the water column and atmosphere. Geofluids, Blackwell Science Ltd 2(2): 95-107 Mitchell, R., MacDonald, I. R. and Kvenvolden, K. A. (1999). Estimation of total hydrocarbon seepage into the Gulf of Mexico based on satellite remote sensing images. Transactions, American Geophysical Union 80(49): Ocean Sciences Meeting Supplement, OS242
Deep Eddies in the Gulf of Mexico
NASA Astrophysics Data System (ADS)
Furey, H. H.; Bower, A. S.; Perez-Brunius, P.; Hamilton, P.
2014-12-01
A major Lagrangian program is currently underway to map the deep (1500-2500 m) circulation of the entire Gulf of Mexico. Beginning in 2011, more than 120 acoustically tracked RAFOS floats have been released in the eastern, central and western Gulf, many in pairs and triplets. Most floats are programmed to drift for two years, obtaining position fixes and temperature/pressure measurements three times daily. More than 80 floats have completed their missions, and results from the trajectories will be described with a focus on mesoscale eddying behavior. In particular, the first-ever observations of deep energetic anticyclonic eddies (possibly lenses) forming at and separating from a northeastward-flowing boundary current west of Campeche Bank will be discussed. The existence of these eddies has major implications for exchange between the continental slope and interior Gulf. The project is being supported by the U.S. Bureau of Ocean Energy Management (BOEM).
Volatile organic compounds in Gulf of Mexico sediments
DOE Office of Scientific and Technical Information (OSTI.GOV)
McDonald, T.J.
1988-01-01
Volatile organic compounds (VOC), concentrations and compositions were documented for estuarine, coastal, shelf, slope, and deep water sediments from the Gulf of Mexico. VOC were measured (detection limit >0.01 ppb) using a closed-loop stripping apparatus with gas chromatography (GC) and flame ionization, flame photometric, and mass spectrometric detectors. The five primary sources of Gulf of Mexico sediment VOC are: (1) planktonic and benthic fauna and flora; (2) terrestrial material from riverine and atmospheric deposition; (3) anthropogenic inputs: (4) upward migration of hydrocarbons; and (5) transport by bottom currents or slumping. Detected organo-sulfur compounds include alkylated sulfides, thiophene, alkylated thiophenes, andmore » benzothiophenes. Benzothiophenes are petroleum related. Low molecular weight organo-sulfur compounds result from the biological oxidation of organic matter. A lack of organosulfur compounds in the reducing environment of the Orca Basin may result from a lack of free sulfides which are necessary for their production.« less
Federal Register 2010, 2011, 2012, 2013, 2014
2013-02-05
... Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils, in conjunction with NOAA... SEDAR Workshops are appointed by the Gulf of Mexico, South Atlantic, and Caribbean Fishery Management...; constituency representatives including fishermen, environmentalists, and non-governmental organizations (NGOs...
Code of Federal Regulations, 2010 CFR
2010-07-01
... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Gulf of Mexico and St. Andrew... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.770 Gulf of Mexico and St....; restricted area. (a) The area. The waters of the Gulf of Mexico and St. Andrew Sound within an area described...
Code of Federal Regulations, 2014 CFR
2014-07-01
... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Gulf of Mexico and St. Andrew... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.770 Gulf of Mexico and St....; restricted area. (a) The area. The waters of the Gulf of Mexico and St. Andrew Sound within an area described...
Code of Federal Regulations, 2013 CFR
2013-07-01
... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Gulf of Mexico and St. Andrew... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.770 Gulf of Mexico and St....; restricted area. (a) The area. The waters of the Gulf of Mexico and St. Andrew Sound within an area described...
Code of Federal Regulations, 2012 CFR
2012-07-01
... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Gulf of Mexico and St. Andrew... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.770 Gulf of Mexico and St....; restricted area. (a) The area. The waters of the Gulf of Mexico and St. Andrew Sound within an area described...
Code of Federal Regulations, 2011 CFR
2011-07-01
... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Gulf of Mexico and St. Andrew... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.770 Gulf of Mexico and St....; restricted area. (a) The area. The waters of the Gulf of Mexico and St. Andrew Sound within an area described...
NOAA tools to support CSC and LCC regional climate science priorities in the western Gulf of Mexico
NASA Astrophysics Data System (ADS)
Brown, D. P.; Marcy, D.; Robbins, K.; Shafer, M.; Stiller, H.
2012-12-01
The National Oceanic and Atmospheric Administration (NOAA) is an active regional partner with the Department of Interior (DOI) in supplying and supporting the delivery of climate science and services. A primary mechanism for NOAA-DOI coordination at the regional scale is the Landscape Conservation Cooperative (LCC) network, which is supported in part by DOI Climate Science Centers (CSC). Together, the CSCs and LCCs provide a framework to identify landscape-scale science and services priorities for conservation and management. As a key partner of the CSCs and an active member of many LCCs, NOAA is working to ensure its own regional product and service delivery efforts will help address these conservation and management challenges. Two examples of NOAA's regional efforts are highlighted here, with a focus on the coastal and interior geographies of the western Gulf of Mexico where NOAA partners with the South Central CSC and participates as a member of the Gulf Coast Prairie LCC. Along the Texas coastline, a sea level rise and coastal flooding impacts viewer, produced by NOAA's Coastal Services Center and available via its Digital Coast interface, allows constituents to visualize estimates of sea level rise, measures of uncertainty, flood frequencies, and environmental (e.g., marsh migration) and socioeconomic (e.g., tidal flooding of built environments) impacts. In the interior of Texas and Louisiana, NOAA's Southern Regional Climate Center is leading a consortium of partners in the development of a unified source of regional water reservoir information, including current conditions, a historical database, and web-based visualization tools to illustrate spatio-temporal variations in water availability to a broad array of hydrological, agricultural, and other customers. These two examples of NOAA products can, in their existing forms, support regional conservation and management priorities for CSCs and LCCs by informing vulnerability assessments and adaptation
Prospects and Techniques for Eddy-Resolving Acoustic Tomography in the Eastern Gulf of Mexico
NASA Astrophysics Data System (ADS)
Caruthers, J. W.; Nechaev, D.; Roman, D. A.; Sidorovskaia, N. A.; Ioup, G. E.; Ioup, J.; Yaremchuk, M.
2007-05-01
For several decades monitoring and modeling the dynamics and physical structure of the Gulf of Mexico have been major efforts undertaken by oceanographers of the United States and other American countries. There are very interesting physical oceanographic features in the Gulf, not the least of which are the Gulf Loop Current and the eddies it spawns. Satellite sensing of IR and altimeter imagery has been a major input to modeling those features. Such efforts are very important to the economy and well being of much of the United States and Mexico, including fisheries, mineral economies, hurricane strengths and paths in the summer, and severe snow storms in the eastern US in the winter. A major shortcoming of the present monitoring of the Gulf is the lack of subsurface input to the dynamic models of the Gulf. Acoustic tomography is a viable means of providing that missing input. Several universities have come together to investigate the prospects for establishing a Gulf Eddy Monitoring System (GEMS) for the deep eastern half of the Gulf using acoustic tomography. The group has conducted several acoustics experiments and propagation studies to determine the feasibility of long-range propagation in the eastern Gulf and the mitigation of adverse effects on marine mammal populations in that region under the Office of Naval Research project entitled the Littoral Acoustic Demonstration Center (LADC). The group has also convened an invited session for the 9th World Multiconference on Systemics, Cybernetics and Informatics (WMSCI 2005) Orlando, FL, July 2005. This paper discusses prospects for establishing the GEMS tomographic system, its technical characteristics, and its contributions to advancing the knowledge of the dynamics of the Gulf. This presentation will concentrate on the characteristics of a single-slice tomographic system, called GEMS Phase I, across the approaches to the DeSoto Canyon in the northeastern Gulf and its prospect for monitoring the movements of
Parametric Adjustments to the Rankine Vortex Wind Model for Gulf of Mexico Hurricanes
2012-11-01
2012 4. TITLE AND SUBTITLE Parametric Adjustments to the Rankine Vortex Wind Model for Gulf of Mexico Hurricanes 5a. CONTRACT NUMBER 5b. GRANT ...may be used to construct spatially varying wind fields for the GOM region (e.g., Thompson and Cardone [12]), but this requires using a complicated...Storm Damage Reduc- tion, and Dredging Operations and Environmental Research (DOER). The USACE Headquarters granted permission to publish this paper
Federal Register 2010, 2011, 2012, 2013, 2014
2012-04-27
...-BB44 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf... (Councils) have submitted Amendment 11 to the Fishery Management Plan for the Spiny Lobster Fishery of the... proposes to limit spiny lobster fishing using trap gear in certain areas in the exclusive economic zone off...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-05-14
... major period of emigration of these shrimp from Texas estuaries to the Gulf of Mexico (Gulf) so the... to project when brown shrimp in Texas bays and estuaries will reach a mean size of 3.54 in (90 mm), and begin strong emigrations out of the bays and estuaries during maximum duration ebb tides. Sampling...
Natural and unnatural oil slicks in the Gulf of Mexico
Garcia‐Pineda, O.; Beet, A.; Daneshgar Asl, S.; Feng, L.; Graettinger, G.; French‐McCay, D.; Holmes, J.; Hu, C.; Huffer, F.; Leifer, I.; Muller‐Karger, F.; Solow, A.; Silva, M.; Swayze, G.
2015-01-01
Abstract When wind speeds are 2–10 m s−1, reflective contrasts in the ocean surface make oil slicks visible to synthetic aperture radar (SAR) under all sky conditions. Neural network analysis of satellite SAR images quantified the magnitude and distribution of surface oil in the Gulf of Mexico from persistent, natural seeps and from the Deepwater Horizon (DWH) discharge. This analysis identified 914 natural oil seep zones across the entire Gulf of Mexico in pre‐2010 data. Their ∼0.1 µm slicks covered an aggregated average of 775 km2. Assuming an average volume of 77.5 m3 over an 8–24 h lifespan per oil slick, the floating oil indicates a surface flux of 2.5–9.4 × 104 m3 yr−1. Oil from natural slicks was regionally concentrated: 68%, 25%, 7%, and <1% of the total was observed in the NW, SW, NE, and SE Gulf, respectively. This reflects differences in basin history and hydrocarbon generation. SAR images from 2010 showed that the 87 day DWH discharge produced a surface‐oil footprint fundamentally different from background seepage, with an average ocean area of 11,200 km2 (SD 5028) and a volume of 22,600 m3 (SD 5411). Peak magnitudes of oil were detected during equivalent, ∼14 day intervals around 23 May and 18 June, when wind speeds remained <5 m s−1. Over this interval, aggregated volume of floating oil decreased by 21%; area covered increased by 49% (p < 0.1), potentially altering its ecological impact. The most likely causes were increased applications of dispersant and surface burning operations. PMID:27774370
Natural and unnatural oil slicks in the Gulf of Mexico
MacDonald, Ian R.; O. Garcia-Pineda,; A. Beet,; S. Daneshgar Asl,; L. Feng,; D. G. Graettinger,; D. French-McCay,; J. Holmes,; C. Hu,; F. Huffer,; I. Leifer,; F. Mueller-Karger,; A. Solow,; M. Silva,; Swayze, Gregg A.
2015-01-01
When wind speeds are 2 – 10 m s−1, reflective contrasts in the ocean surface make oil slicks visible to synthetic aperture radar (SAR) under all sky conditions. Neural network analysis of satellite SAR images quantified the magnitude and distribution of surface oil in the Gulf of Mexico from persistent, natural seeps and from the Deepwater Horizon (DWH) discharge. This analysis identified 914 natural oil seep zones across the entire Gulf of Mexico in pre-2010 data. Their ∼0.1 µm slicks covered an aggregated average of 775 km2. Assuming an average volume of 77.5 m3over an 8 – 24 h lifespan per oil slick, the floating oil indicates a surface flux of 2.5 – 9.4 × 104 m3 y−1. Oil from natural slicks was regionally concentrated: 68%, 25%, 7%, and <1% of the total was observed in the NW, SW, NE and SE Gulf, respectively. This reflects differences in basin history and hydrocarbon generation. SAR images from 2010 showed that the 87-day DWH discharge produced a surface-oil footprint fundamentally different from background seepage, with an average ocean area of 11,200 km2 (SD 5,028) and a volume of 22,600 m3 (SD 5,411). Peak magnitudes of oil were detected during equivalent, ∼14-day intervals around 23 May and 18 June, when wind speeds remained <5 m s−1. Over this interval, aggregated volume of floating oil decreased by 21%; area covered increased by 49% (p < .1), potentially altering its ecological impact. The most likely causes were increased applications of dispersant and surface burning operations.
Natural and unnatural oil slicks in the Gulf of Mexico
MacDonald, I. R.; Garcia-Pineda, O.; Beet, A.; ...
2015-12-28
When wind speeds are 2–10 m s -1, reflective contrasts in the ocean surface make oil slicks visible to synthetic aperture radar (SAR) under all sky conditions. Neural network analysis of satellite SAR images quantified the magnitude and distribution of surface oil in the Gulf of Mexico from persistent,natural seeps and from the Deep water Horizon (DWH) discharge. This analysis identified 914 natural oil seep zones across the entire Gulf of Mexico in pre-2010 data. Their ~0.1 mm slicks covered an aggregated average of 775 km 2. Assuming an average volume of 77.5 m 3 over an 8–24 h lifespanmore » per oil slick, the floating oil indicates a surface flux of 2.5–9.4 X 10 4 m 3 yr -1. Oil from natural slicks was regionally concentrated: 68%, 25%, 7%, and <1% of the total was observed in the NW, SW, NE, and SE Gulf, respectively. This reflects differences in basin history and hydrocarbon generation. SAR images from 2010 showed that the 87 day DWH discharge produced a surface-oil footprint fundamentally different from background seepage, with an average ocean area of 11,200 km 2(SD 5028) and a volume of 22,600 m 3(SD 5411). Peak magnitudes of oil were detected during equivalent, ~14 day intervals around 23 May and 18 June, when wind speeds remained <5ms -1. Over this interval, aggregated volume of floating oil decreased by 21%; area covered increased by 49% (p < 0.1), potentially altering its ecological impact. Furthermore, the most likely causes were increased applications of dispersant and surface burning operations.« less
Organic-rich source beds and hydrocarbon production in Gulf Coast region
DOE Office of Scientific and Technical Information (OSTI.GOV)
Williams, D.F.; Lerche, I.
1988-09-01
Two models (I and II) are presented that relate the production of hydrocarbons in the Gulf Coast region to organic-rich source beds of ancient intraslope basins. Model I is empirical, based on present-day depositional environments like the anoxic Orca basin of the northern Gulf of Mexico and the Bannock basin of the eastern Mediterranean Sea. Model I proposed that low oxygen levels in intraslope basins of the northwestern Gulf of Mexico (GOM) have been a common mechanism for the accumulation of sediments with significantly increased amounts of marine organic carbon. In Model I progradation of the shelf-slope and regional saltmore » tectonics control the occurrence and stratigraphic distribution of source beds throughout the Tertiary of the GOM. In turn, the maturation history of these organic-rich sediments is influenced by the high thermal conductivity of the underlying salt structures. Model II is statistical; it uses random number theory to suggest that the occurrence of organic-rich black muds in intraslope basins of the northwestern GOM had sufficient capacity to account for a dynamic range estimate of 30 to 500 billion bbl oil total and 30 to 300 bcf/million years per ephemeral basin of gas. These estimates, while approximate, clearly indicate the enormous hydrocarbon potential for generating oil and gas reserves in the Gulf Coast geosyncline. Such estimates underscore the need for a better understanding of intraslope basins of the northwestern GOM.« less
Asphalt Volcanism and Chemosynthetic Life in the Campeche Knolls, Gulf of Mexico
NASA Astrophysics Data System (ADS)
MacDonald, I. R.; Bohrmann, G.; Escobar, E.; Abegg, F.; Blanchon, P.; Blinova, V.; Brückmann, W.; Drews, M.; Eisenhauer, A.; Han, X.; Heeschen, K.; Meier, F.; Mortera, C.; Naehr, T.; Orcutt, B.; Bernard, B.; Brooks, J.; de Faragó, M.
2004-05-01
In the Campeche Knolls, in the southern Gulf of Mexico, lava-like flows of solidified asphalt cover more than 1 square kilometer of the rim of a dissected salt dome at a depth of 3000 meters below sea level. Chemosynthetic tubeworms and bivalves colonize the sea floor near the asphalt, which chilled and contracted after discharge. The site also includes oil seeps, gas hydrate deposits, locally anoxic sediments, and slabs of authigenic carbonate. Asphalt volcanism creates a habitat for chemosynthetic life that may be widespread at great depth in the Gulf of Mexico.
GEMINI-TITAN (GT)-9 TEST - TRAINING - GULF OF MEXICO
1965-05-20
S65-22656 (14 April 1965) --- The Gemini-Titan 4 prime crew, astronauts Edward H. White II (left), pilot, and James A. McDivitt, command pilot, pictured aboard the NASA Motor Vessel Retriever in the Gulf of Mexico.
Demonstration of fuel switching on oceangoing vessels in the Gulf of Mexico.
Browning, Louis; Hartley, Seth; Bandemehr, Angela; Gathright, Kenneth; Miller, Wayne
2012-09-01
Switching fuels from high-sulfur heavy fuel oils (HFO) to lower sulfur marine gas oils (MGO) on an oceangoing vessel (OGV) can substantially reduce both PM and SO(x) ship stack emissions, potentially resulting in significant human health and environmental benefits in Gulf of Mexico port communities. The International Maritime Organization (IMO) established an emission control area (ECA) within 200 nautical miles of the US. and Canadian coastlines and French territories off the coast of Canada with lower fuel sulfur standards effective beginning August 2012, where OGVs will need to switch from HFO to MGO. However some operators and other stakeholders, particularly in the Gulf of Mexico, may be unfamiliar with the benefits and requirements and ship operators may be concerned over potential implications for cost and operations. This first-ever US. Environmental Protection Agency (EPA)-sponsored fuel switching demonstration in the Gulf of Mexico was initiated to showcase the environmental and health benefits of as well as operational issues associated with, fuel switching through the following activities: (1) Fuel switching was conducted on typical container ships operating the Gulf of Mexico, as routine fuel switching has been demonstrated in California in recent years. Two vessels were employed in the demonstration: the Maersk Roubaix, which switched fuels entering Port of Houston, TX, and the Port of Progreso, Mexico, and the Hamburg Süd vessel Cap San Lorenzo, which switched fuels entering the Port of Houston and the Mexican Ports of Veracruz and Altamira. Operational and cost aspects were also noted. (2) Emissions reductions were quantified through both a calculation approach based on fuel use of the Maersk Line vessel Roubaix and in-stack monitoring of emissions from the Hamburg Süd Cap San Lorenzo. Pollutant emissions including PM, SO(x), NO(x), and PM component speciation were sampled during use of both fuels. These observations showed reductions (1-6%) in NO
Federal Register 2010, 2011, 2012, 2013, 2014
2012-12-06
... Offshore Drilling Units). OMB Control Number: 1014-0013. Abstract: The Outer Continental Shelf (OCS) Lands.... The subject of this ICR is an NTL, GPS (Global Positioning System) for MODUs (Mobile Offshore Drilling... Operators (NTL)--Gulf of Mexico OCS Region--GPS (Global Positioning System) for MODUs (Mobile Offshore...
78 FR 29116 - Gulf of Mexico Fishery Management Council; Public Meeting; Correction
Federal Register 2010, 2011, 2012, 2013, 2014
2013-05-17
... Mexico Fishery Management Council; Public Meeting; Correction AGENCY: National Marine Fisheries Service... public meeting; correction. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Standing, Special Mackerel and Special Reef Fish Scientific and Statistical Committees. DATES...
Notification: Evaluate the Gulf of Mexico Hypoxic Zone Reduction
Project #OPE-FY13-0012, January 30, 2013. The Office of Inspector General (OIG) is starting preliminary research on the U.S. Environmental Protection Agency’s (EPA’s) and states’ efforts to reduce the Gulf of Mexico hypoxic zone.
77 FR 44168 - Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic; Amendment 11
Federal Register 2010, 2011, 2012, 2013, 2014
2012-07-27
.... 110908576-2240-02] RIN 0648-BB44 Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic; Amendment... the Fishery Management Plan for the Spiny Lobster Fishery in the Gulf of Mexico and South Atlantic... (Councils). This final rule limits spiny lobster trap fishing in certain areas in the exclusive economic...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-09-18
... DEPARTMENT OF THE INTERIOR Bureau of Ocean Energy Management Environmental Documents Prepared for Oil, Gas, and Mineral Operations by the Gulf of Mexico Outer Continental Shelf (OCS) Region AGENCY: Bureau of Ocean Energy Management (BOEM), Interior. ACTION: Notice of the availability of environmental...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-06-11
... DEPARTMENT OF THE INTERIOR Bureau of Ocean Energy Management Environmental Documents Prepared for Oil, Gas, and Mineral Operations by the Gulf of Mexico Outer Continental Shelf (OCS) Region AGENCY: Bureau of Ocean Energy Management (BOEM), Interior. ACTION: Notice of the availability of environmental...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-12-13
... DEPARTMENT OF THE INTERIOR Bureau of Ocean Energy Management Environmental Documents Prepared for Oil, Gas, and Mineral Operations by the Gulf of Mexico Outer Continental Shelf (OCS) Region AGENCY: Bureau of Ocean Energy Management (BOEM), Interior. ACTION: Notice of the availability of environmental...
Code of Federal Regulations, 2010 CFR
2010-07-01
... Gulf of Mexico adjacent to Santa Rosa Island, Air Force Proving Ground Command, Eglin Air Force Base... Sound and Gulf of Mexico adjacent to Santa Rosa Island, Air Force Proving Ground Command, Eglin Air Force Base, Fla. (a) The danger zones—(1) Prohibited area. Waters of Santa Rosa Sound and Gulf of Mexico...
Code of Federal Regulations, 2010 CFR
2010-10-01
... the Gulf of Mexico and its inlets. 192.612 Section 192.612 Transportation Other Regulations Relating... Mexico and its inlets. (a) Each operator shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in waters less than 15 feet (4.6 meters) deep as measured from...
Code of Federal Regulations, 2011 CFR
2011-10-01
... the Gulf of Mexico and its inlets. 192.612 Section 192.612 Transportation Other Regulations Relating... Mexico and its inlets. (a) Each operator shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in waters less than 15 feet (4.6 meters) deep as measured from...
Code of Federal Regulations, 2012 CFR
2012-10-01
... the Gulf of Mexico and its inlets. 192.612 Section 192.612 Transportation Other Regulations Relating... Mexico and its inlets. (a) Each operator shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in waters less than 15 feet (4.6 meters) deep as measured from...
Code of Federal Regulations, 2013 CFR
2013-10-01
... the Gulf of Mexico and its inlets. 192.612 Section 192.612 Transportation Other Regulations Relating... Mexico and its inlets. (a) Each operator shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in waters less than 15 feet (4.6 meters) deep as measured from...
Code of Federal Regulations, 2014 CFR
2014-10-01
... the Gulf of Mexico and its inlets. 192.612 Section 192.612 Transportation Other Regulations Relating... Mexico and its inlets. (a) Each operator shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in waters less than 15 feet (4.6 meters) deep as measured from...
Nutrient Enrichment Drives Gulf of Mexico Hypoxia
NASA Astrophysics Data System (ADS)
Boesch, Donald F.; Boynton, Walter R.; Crowder, Larry B.; Diaz, Robert J.; Howarth, Robert W.; Mee, Laurence D.; Nixon, Scott W.; Rabalais, Nancy N.; Rosenberg, Rutger; Sanders, James G.; Scavia, Donald; Turner, R. Eugene
2009-04-01
During most summers over the past 30 years, bottom dissolved oxygen across a large area of the Louisiana and upper Texas continental shelf declined to concentrations too low (hypoxia) for most fish and large invertebrate animals to survive. This area is one of the best known “dead zones” proliferating around the world [Diaz and Rosenberg, 2008]. During July 2008, hypoxic bottom waters extended across 20,720 square kilometers (Figure 1), but they were probably even more extensive because winds from Hurricane Dolly mixed the waters off Texas before the survey could be completed. Increased inputs of nutrients (principally nitrogen and phosphorus) from the U.S. agricultural heartland within the Mississippi-Atchafalaya River Basin (MARB) are implicated in the development and spread of hypoxia in the Gulf of Mexico. Consequently, the causes of, and solutions for, hypoxia have been subjects of extensive debate and analysis. An integrated scientific assessment led to a 2001 Action Plan [Mississippi River/Gulf of Mexico Watershed Nutrient Task Force, 2001] with a goal of reducing the area of the hypoxic zone to less than 5000 square kilometers by reducing nitrogen loading [Rabalais et al., 2007].
Deepwater Horizon NRDA Trustees Commend Gulf Task Force Efforts | NOAA Gulf
of the five Gulf states and two federal agencies, commend the members of the Gulf Coast Ecosystem Gulf of Mexico ecosystem and the Gulf Coast region. âÂÂWe share a common goal of a healthy , resilient Gulf ecosystem, and we intend to take into account the Task Force strategies and the publicâÂÂs
Climate change and its potential impacts on the Gulf Coast region of the United States.
Tchounwou, P B
1999-01-01
The Gulf Coast region of the United States abuts five states, including Alabama, Florida, Louisiana, Mississippi, and Texas. In general, the Gulf of Mexico has a surface area of 1.63 million square kilometers (630,000 square miles) and a watershed area of 4.69 million square kilometers (1.81 million square miles) in the United States. This region is one of the nation's largest ecological systems and is closely linked to a significant portion of the nation's economy. In the Gulf Coast region, energy, fisheries, agriculture, and tourism rank among the most significant sectors of the economy. The Gulf has five of the top ten fishing ports in the United States, and commercial fisheries in the Gulf annually produce nearly 2 billion tons of fish, oysters, shrimps, and crabs. Gulf ports handle one-half of the nation's import-export tonnage. Petroleum produced in the Gulf represents about 80% of the nation's offshore production. The Gulf Coast region largely relies on many natural resources to fuel many important sectors of its economy. But nevertheless, the health and vitality of the Gulf have declined in recent years, caused in part by increasing populations along its coast and the growing demand upon its resources and in part by the accumulation of years of careless depletion, abuse, and neglect of the environment. Equally important are the impacts of natural and human-induced climate change on the economy and on the quality of life for millions of people living in the Gulf Coast region. The results have generated alarming increases in damage to and destruction of the ecosystems and habitats of the Gulf. This paper reviews the nature of global environmental change and addresses the potential health and environmental impacts that may occur in the Gulf Coast region of the United States as a consequence of various environmental alterations resulting from global change.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-01-03
... the Caribbean, Gulf of Mexico, and South Atlantic; Amendment 22 to the Fishery Management Plan for...: NMFS, Southeast Region, in collaboration with the South Atlantic Fishery Management Council (Council), intends to prepare an EIS to describe and analyze a range of alternatives for management actions to be...
33 CFR 334.650 - Gulf of Mexico, south of St. George Island, Fla.; test firing range.
Code of Federal Regulations, 2012 CFR
2012-07-01
... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Gulf of Mexico, south of St. George Island, Fla.; test firing range. 334.650 Section 334.650 Navigation and Navigable Waters CORPS OF....650 Gulf of Mexico, south of St. George Island, Fla.; test firing range. (a) The danger zone. A fan...
33 CFR 334.650 - Gulf of Mexico, south of St. George Island, Fla.; test firing range.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Gulf of Mexico, south of St. George Island, Fla.; test firing range. 334.650 Section 334.650 Navigation and Navigable Waters CORPS OF....650 Gulf of Mexico, south of St. George Island, Fla.; test firing range. (a) The danger zone. A fan...
33 CFR 334.650 - Gulf of Mexico, south of St. George Island, Fla.; test firing range.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Gulf of Mexico, south of St. George Island, Fla.; test firing range. 334.650 Section 334.650 Navigation and Navigable Waters CORPS OF....650 Gulf of Mexico, south of St. George Island, Fla.; test firing range. (a) The danger zone. A fan...
Code of Federal Regulations, 2010 CFR
2010-07-01
... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false The Narrows and Gulf of Mexico... DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.710 The Narrows and Gulf of Mexico adjacent to.... The waters of The Narrows and the Gulf of Mexico easterly of the periphery of a circular area 5...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-12-03
..., Shrimp, and Coral and Coral Reefs Fishery Management Plans for the Gulf of Mexico (Generic ACL Amendment.... 100217097-1757-02] RIN 0648-XC981 Reef Fish Fishery of the Gulf of Mexico; 2013 Accountability Measure [email protected] . SUPPLEMENTARY INFORMATION: The reef fish fishery of the Gulf, which includes hogfish, is...
1400 yr multiproxy record of climate variability from the northern Gulf of Mexico
Richey, J.N.; Poore, R.Z.; Flower, B.P.; Quinn, T.M.
2007-01-01
A continuous decadal-scale resolution record of climate variability over the past 1400 yr in the northern Gulf of Mexico was constructed from a box core recovered in the Pigmy Basin, northern Gulf of Mexico. Proxies include paired analyses of Mg/Ca and δ18O in the white variety of the planktic foraminifer Globigerinoides ruber and relative abundance variations of G. sacculifer in the foraminifer assemblages. Two multi-decadal intervals of sustained high Mg/Ca indicate that Gulf of Mexico sea surface temperatures (SSTs) were as warm or warmer than near-modern conditions between 1000 and 1400 yr B.P. Foraminiferal Mg/Ca during the coolest interval of the Little Ice Age (ca. 250 yr B.P.) indicate that SST was 2–2.5 °C below modern SST. Four minima in the Mg/Ca record between 900 and 250 yr B.P. correspond with the Maunder, Spörer, Wolf, and Oort sunspot minima, suggesting a link between changes in solar insolation and SST variability in the Gulf of Mexico. An abrupt shift recorded in both δ18Ocalcite and relative abundance of G. sacculifer occurred ca. 600 yr B.P. The shift in the Pigmy Basin record corresponds with a shift in the sea-salt-sodium (ssNa) record from the Greenland Ice Sheet Project 2 ice core, linking changes in high-latitude atmospheric circulation with the subtropical Atlantic Ocean.
A FRAMEWORK FOR AN INTEGRATED MONITORING PLAN FOR THE GULF OF MEXICO ECOSYSTEM
The Gulf of Mexico Program (GMP) Office in cooperation with its principal partners (Gulf State agencies, Federal agencies, private industry, etc.) and the Environmental Protection Agency's (EPA) Environmental Monitoring and Assessment Program (EMAP) are developing an integrated c...
Monitoring the estuaries of the Atlantic Ocean and Gulf of Mexico coastlines was performed annually from 1990 to 1997 to assess ecological conditions on a regional basis for four biogeographic provinces. These province estimates - Virginian, Carolinian, West Indian, and Louisiani...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-03-17
...-Sandbar Large Coastal Shark Fishery AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and... fishery for non-sandbar large coastal sharks (LCS) in the Gulf of Mexico region. This action is necessary... Gu DuBeck, 301-713-2347; fax 301-713-1917. SUPPLEMENTARY INFORMATION: The Atlantic shark fisheries...
33 CFR 334.650 - Gulf of Mexico, south of St. George Island, Fla.; test firing range.
Code of Federal Regulations, 2010 CFR
2010-07-01
... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Gulf of Mexico, south of St....650 Gulf of Mexico, south of St. George Island, Fla.; test firing range. (a) The danger zone. A fan... an arc with a 10,500 meter radius with its center located on the south shore line of St. George...
33 CFR 334.650 - Gulf of Mexico, south of St. George Island, Fla.; test firing range.
Code of Federal Regulations, 2011 CFR
2011-07-01
... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Gulf of Mexico, south of St....650 Gulf of Mexico, south of St. George Island, Fla.; test firing range. (a) The danger zone. A fan... such agencies as he may designate. [33 FR 4464, Mar. 13, 1968, as amended at 36 FR 15528, Aug. 17, 1971...
Improved Hypoxia Modeling for Nutrient Control Decisions in the Gulf of Mexico
NASA Technical Reports Server (NTRS)
Habib, Shaid; Pickering, Ken; Tzortziou, Maria; Maninio, Antonio; Policelli, Fritz
2010-01-01
As required by the Harmful Algal Bloom and Hypoxia Research Control Act of 1998, the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force issued the 2001 Gulf Hypoxia Action Plan (updated in 2008). In response to the Gulf Hypoxia Action Plan of 2001 (updated in 2008), the EPA Gulf of Mexico Hypoxia Modeling and Monitoring Project has established a detailed model for the Mississippi-Attchafalaya River Basin which provides a capability to forecast the multi-source nutrient loading to the Gulf and the subsequent bio-geochemical processes leading to hypoxic conditions and subsequent effects on Gulf habitats and fisheries. The primary purpose of the EPA model is to characterize the impacts of nutrient management actions, or proposed actions on the spatial and temporal characteristics of the Gulf hypoxic zone. The model is expected to play a significant role in determining best practices and improved strategies for incentivizing nutrient reduction strategies, including installation of on-farm structures to reduce sediment and nutrient runoff, use of cover crops and other agricultural practices, restoration of wetlands and riparian buffers, improved waste water treatment and decreased industrial nitrogen emissions. These decisions are currently made in a fragmented way by federal, state, and local agencies, using a variety of small scale models and limited data. During the past three years, EPA has collected an enormous amount of in-situ data to be used in the model. We believe that the use of NASA satellite data products in the model and for long term validation of the model has the potential to significantly increase the accuracy and therefore the utility of the model for the decision making described above. This proposal addresses the Gulf of Mexico Alliance (GOMA) priority issue of reductions in nutrient inputs to coastal ecosystem. It further directly relates to water quality for healthy beaches and shellfish beds and wetland and coastal conservation
78 FR 57534 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic
Federal Register 2010, 2011, 2012, 2013, 2014
2013-09-19
... Mexico, and South Atlantic: Caribbean coral, Caribbean reef fish, Caribbean spiny lobster, Caribbean... migratory pelagics, Gulf and South Atlantic spiny lobster, South Atlantic coral, South Atlantic snapper... (Gulf and South Atlantic spiny lobster) into part 622 (78 FR 22950). With that incorporation, all...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-09-10
.... 120718253-2367-01] RIN 0648-BC30 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Snapper-Grouper Fishery off the Southern Atlantic States; Transferability of Black Sea Bass Pot Endorsements...) for the Snapper-Grouper Fishery of the South Atlantic Region (Amendment 18A), as prepared and...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-12-07
.... 120718253-2644-02] RIN 0648-BC30 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Snapper-Grouper Fishery Off the Southern Atlantic States; Transferability of Black Sea Bass Pot Endorsements... Fishery of the South Atlantic Region (Amendment 18A), as prepared and submitted by the South Atlantic...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-03-04
...-BC58 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Shrimp Fishery Off the Southern... Fishery Management Plan for the Shrimp Fishery of the South Atlantic Region (FMP) for review, approval... Atlantic states may request a concurrent closure of the penaeid shrimp (brown, pink, and white shrimp...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-01-28
....m.; March 19, 2010: 8 a.m. - 12 p.m. An assessment data set and associated documentation will be... the Gulf of Mexico; Southeast Data, Assessment, and Review (SEDAR); data workshop for yellowedge... Administration (NOAA), Commerce. ACTION: Notice of SEDAR Data Workshop for Gulf of Mexico yellowedge grouper and...
Federal Register 2010, 2011, 2012, 2013, 2014
2011-01-03
... the Caribbean, Gulf of Mexico, and South Atlantic; Amendment 24 to the Fishery Management Plan for... Region, in collaboration with the South Atlantic Fishery Management Council (Council), intends to prepare an EIS to describe and analyze a range of alternatives for management actions to be included in an...
NASA Astrophysics Data System (ADS)
Arriola, J.; Cable, J. E.
2017-12-01
Many studies quantifying salt marsh vertical accretion and carbon burial have been conducted along the Gulf of Mexico over the past several decades. These results are often used in conjunction with sea level rise estimates to evaluate the long term storage, and potential release, of carbon as salt marshes are overtaken by rising waters. However, results from these studies are not always comparable because of diverse sampling and analytical methods, which may skew regional averages. In addition, salt marsh vertical accretion and carbon burial rates can be highly variable on local scales depending on sampling locations within the marsh, e.g. levee vs marsh plain, and methods to determine carbon quantity, such as utilizing linear relationships between % organic matter and % carbon from other studies. Anthropogenic impacts on accretion and carbon burial may also influence interpretation of results. Utilizing consistent methods for local and regional marsh research will improve the accuracy of accretion and burial rates which is fundamental to our ability to predict responses to climate change. Our study examined sediment cores extracted from 6 salt marshes - 5 marshes along Texas to Florida coasts and 1 marsh on the Florida Atlantic coast. These marshes were selected for minimal human influence and consistent sampling and analytical methodologies were employed to compare vertical accretion and carbon burial variability on local and regional scales. Total organic carbon (TOC) and total nitrogen were determined via direct measurement and accretion rates were calculated based on 210Pb via 210Po alpha spectrometry. The lowest TOC inventory was found at Mission-Aransas, TX (18.57 g OC), whereas the highest was found at Apalachicola, FL (35.05 g OC). Anahuac, TX, was found to have the highest modern vertical accretion rates of all 6 sites, whereas Guana Tolomato-Matanzas, FL, has the lowest. This research yields regional carbon burial estimates for the Gulf of Mexico using
Geothermal resources of the northern gulf of Mexico basin
Jones, P.H.
1970-01-01
Published geothermal gradient maps for the northern Gulf of Mexico basin indicate little or no potential for the development of geothermal resources. Results of deep drilling, from 4000 to 7000 meters or more, during the past decade however, define very sharp increases in geothermal gradient which are associated with the occurrence of abnormally high interstitial fluid pressure (geopressure). Bounded by regional growth faults along the landward margin of the Gulf Basin, the geopressured zone extends some 1300 km from the Rio Grande (at the boundary between the United States and Mexico) to the mouth of the Mississippi river. Gulfward, it extends to an unknown distance across the Continental Shelf. Within geopressured deposits, geothermal gradients range upwards to 100 ??C/km, being greatest within and immediately below the depth interval in which the maximum pressure gradient change occurs. The 120 ??C isogeotherm ranges from about 2500 to 5000 m below sea level, and conforms in a general way with depth of occurrence of the top of the geopressured zone. Measured geostatic ratios range upward to 0.97; the maximum observed temperature is 273 ??C, at a depth of 5859 m. Dehydration of montmorillonite, which comprises 60 to 80 percent of clay deposited in the northern Gulf Basin during the Neogene, occurs at depths where temperature exceeds about 80 ??C, and is generally complete at depths where temperature exceeds 120 ??C. This process converts intracrystalline and bound water to free pore water, the volume produced being roughly equivalent to half the volume of montmorillonite so altered. Produced water is fresh, and has low viscosity and density. Sand-bed aquifers of deltaic, longshore, or marine origin form excellent avenues for drainage of geopressured deposits by wells, each of which may yield 10,000 m3 or more of superheated water per day from reservoirs having pressures up to 1000 bars at depths greater than 5000 m. ?? 1971.
Ha, Miae; Zhang, Zhonglong; Wu, May
2018-04-24
A watershed model was developed using the Soil and Water Assessment Tool (SWAT) that simulates nitrogen, phosphorus, and sediment loadings in the Lower Mississippi River Basin (LMRB). The LMRB SWAT model was calibrated and validated using 21 years of observed flow, sediment, and water-quality data. The baseline model results indicate that agricultural lands within the Lower Mississippi River Basin (LMRB) are the dominant sources of nitrogen and phosphorus discharging into the Gulf of Mexico. The model was further used to evaluate the impact of biomass production, in the presence of riparian buffers in the LMRB, on suspended-sediment and nutrient loading discharge from the Mississippi River into the Gulf of Mexico. The interplay among land use, riparian buffers, crop type, land slope, water quality, and hydrology were anlyzed at various scales. Implementing a riparian buffer in the dominant agricultural region within the LMRB could reduce suspended sediment, nitrogen, and phosphorus loadings at the regional scale by up to 65%, 38%, and 39%, respectively. Implementation of this land management practice can reduce the suspended-sediment content and improve the water quality of the discharge from the LMRB into the Gulf of Mexico and support the potential production of bioenergy and bio-products within the Mississippi River Basin. Copyright © 2017 Elsevier B.V. All rights reserved.
76 FR 23994 - Gulf of Mexico Fishery Management Council; Public Meetings; Correction
Federal Register 2010, 2011, 2012, 2013, 2014
2011-04-29
... Atlantic and Gulf of Mexico; Joint Amendment 10 to the Spiny Lobster Fishery Management Plan for the Gulf... Lobster Public hearings will be held on Joint Amendment 10 to the Spiny Lobster Fishery Management Plan... Accountability Measures for Caribbean spiny lobster as required by the Magnuson-Stevens Act. This amendment...
Embryotoxicity of weathered crude oil from the Gulf of Mexico in mallard ducks (Anas platyrhynchos).
Finch, Bryson E; Wooten, Kimberly J; Smith, Philip N
2011-08-01
Weathered crude oil in the Gulf of Mexico can result from oil spills such as the Deepwater Horizon incident that occurred on April 20, 2010 or from natural seeps. Adult waterbirds of the Gulf Coast region may become exposed to weathered crude oil while foraging, wading, or resting, and residues can then be transferred to nests, eggs, and hatchlings. Although the toxicity of many types of crude oil to avian embryos has been thoroughly studied, the effects of weathered crude oil on developing avian embryos are not well characterized. The objective of the present study was to examine embryotoxicity of weathered crude oil collected from the Gulf of Mexico in June 2010 using mallard ducks (Anas platyrhynchos) as a model species. Weathered crude oil was applied to fertilized mallard duck eggs by paintbrush in masses ranging from 0.1 to 99.9 mg on day 3 of incubation. Mortality occurred as early as day 7 and the conservatively derived median lethal application of weathered crude oil was 30.8 mg/egg (0.5 mg/g egg) or 30.7 µl/egg (0.5 µl/g egg). Body mass, liver and spleen mass, crown-rump and bill lengths, and frequency of deformities were not significantly different among hatchlings from oiled and control eggs. In comparison to published reports of fresh crude oil embryotoxicity, weathered crude oil was considerably less toxic. We conclude that avian toxicity varies according to the degree of crude oil weathering and the stage of embryonic development at the time of exposure. Results indicate bird eggs exposed to weathered crude oil from the Gulf of Mexico during summer 2010 may have had reduced hatching success. Copyright © 2011 SETAC.
NASA Astrophysics Data System (ADS)
Teller, James T.
1990-12-01
Runoff from North America may have played a significant role in ocean circulation and climate change during the last deglaciation. Because the driving force behind such changes may have been related to salinity of the north flowing Atlantic Ocean conveyor circulation, it is critical to know the volume, timing, and location of fresh water entering the North Atlantic from the melting Laurentide Ice Sheet. During the Younger Dryas cold episode, 11,000-10,000 years B.P., there was a two-fold increase in the volume of meltwater plus precipitation runoff, to more than 1700 km³ yr-1, flowing through the St. Lawrence valley to the North Atlantic, mainly because retreating ice allowed the glacial Lake Agassiz basin to drain eastward into the Great Lakes at this time. There was a corresponding decline in discharge from Lake Agassiz through the Mississippi River to the Gulf of Mexico. Runoff to the Arctic Ocean also increased at about the beginning of the Younger Dryas, from 740 to 900 km³ yr-1, because of the capture of what is now the headwater region of the Mackenzie River watershed. This, in combination with rising sea level and warming climate, may have increased the amount of pack ice reaching the North Atlantic through the Norwegian Sea from the Arctic Ocean. At 10,000 years B.P., eastward overflow from the western interior of North America was blocked by advancing ice, again forcing overflow to the Gulf of Mexico and, possibly, to the northwest into the Arctic Ocean. Although total runoff to the oceans from all regions draining from the Laurentide Ice Sheet did not vary substantially between 12,000 and 9000 years B.P., if discharge to the Gulf of Mexico is excluded, fresh water reaching the North Atlantic averaged 4000 km³ yr-1 during the Younger Dryas, in contrast to 2870 km³ yr-1 just before this cold episode and 3440 km³ yr-1 just after it.
Integrated Geophysical Models Extending From The Craton Across The Gulf Coast Region Of The USA
NASA Astrophysics Data System (ADS)
Keller, G. R.; Mickus, K. L.; Thomas, W. A.
2017-12-01
In spite of decades of industry geophysical studies in the US Gulf Coast region, its crustal and uppermost mantle structure remain poorly understood. To understand the structure of this region and its variations from the southern Appalachians to northernmost Mexico, we have complied and integrated multiple data sets to produce a set of lithospheric scale transects crossing this region. These transects are presented as gravity models, but they are constrained by the available seismic reflection/refraction, passive seismic, magnetic, drilling, and geological data. The key transect is based on the PASSCAL wide-angle reflection/refraction experiment that extended from the Ouachita Mountains in Arkansas across the Sabine uplift in Louisiana and into the northernmost Gulf of Mexico. This experiment imaged the Iapetan rifted margin and showed that it was not strongly deformed. This model and one across Alabama delineated crustal blocks south of the rifted margin of Laurentia whose origin is unknown. In central Texas, the models show a crust that thins gradually from the Ouachita orogenic belt southward across the coastline to the edge of the continental margin in the Gulf of Mexico. In western Texas and adjacent northern Mexico, another crustal block has been proposed. Thus, our integrated models and geologic constraints show that the Appalachian and Ouachita orogenic belts were formed during assembly of Pangea (by 270 Ma), and were driven onto the Iapetan rifted margin by collisions with arcs, exotic terranes, and other continents. They also show that the sinuous curves of the Appalachian-Ouachita orogen mimic the shape of the Iapetan rifted margin and subsequent passive-margin shelf edge. Our results indicate that the Ouachita orogeny appears to be the result of soft collisions that have left the pre-orogenic rifted margins largely intact and reflect the complex interactions of compressional and strike-slip deformation.
ERIC Educational Resources Information Center
Day, Philip R., Jr.
Under the auspices of the North American Free Trade Agreement, five states in the United States and six states in Mexico established the Gulf of Mexico Accord to create a working partnership to foster economic development in the Gulf of Mexico. The agreement addresses six major sectors: investment; communication and transportation; health;…
The fishes of Cayo Arcas (Campeche Bank, Gulf of Mexico): an updated checklist.
Robertson, D Ross; Perez-España, Horacio; Lara, Enrique Nuñez; Itza, Francisco Puc; Simoes, Nuno
2016-01-01
Cayo Arcas is a small, offshore reef complex on the southwest corner of Campeche Bank, Gulf of Mexico. The only published information (from 2000) on the fishes of that reef refers to 37 species. Here additional information is added, some from unpublished observations during the 1980s, as well as author observations made during 2013 and 2016. These bring the checklist of that reef's fishes up to 162 species. The possible effects of the limited number of fish habitats available at Cayo Arcas on the composition of its fish fauna are discussed. The Indo-Pacific damselfish Neopomacentrus cyanomos (Bleeker, 1856) was first recorded in the Atlantic in mid-2013, on shoreline reefs in the southwest corner of the Gulf of Mexico. Recently reviewed underwater photographs show that Neopomacentrus cyanomos also was present at Cayo Arcas in mid-2013, 350 km from the first-record site. Hence it evidently had a substantial population in the southwest Gulf of Mexico in 2013, and must have arrived in there long before that year.
The fishes of Cayo Arcas (Campeche Bank, Gulf of Mexico): an updated checklist
Robertson, D. Ross; Perez-España, Horacio; Lara, Enrique Nuñez; Itza, Francisco Puc; Simoes, Nuno
2016-01-01
Abstract Cayo Arcas is a small, offshore reef complex on the southwest corner of Campeche Bank, Gulf of Mexico. The only published information (from 2000) on the fishes of that reef refers to 37 species. Here additional information is added, some from unpublished observations during the 1980s, as well as author observations made during 2013 and 2016. These bring the checklist of that reef’s fishes up to 162 species. The possible effects of the limited number of fish habitats available at Cayo Arcas on the composition of its fish fauna are discussed. The Indo-Pacific damselfish Neopomacentrus cyanomos (Bleeker, 1856) was first recorded in the Atlantic in mid-2013, on shoreline reefs in the southwest corner of the Gulf of Mexico. Recently reviewed underwater photographs show that Neopomacentrus cyanomos also was present at Cayo Arcas in mid-2013, 350 km from the first-record site. Hence it evidently had a substantial population in the southwest Gulf of Mexico in 2013, and must have arrived in there long before that year. PMID:28138290
Marine mammal fauna of potential OTEC sites in the Gulf of Mexico and Hawaii
DOE Office of Scientific and Technical Information (OSTI.GOV)
Payne, S.F.
1979-05-01
Twenty-seven marine mammal species have been recorded for the Gulf of Mexico, including 7 Mysticetes or baleen whales, 17 Odontocetes or toothed whales, 1 Sirenian (manatee), and 1 or 2 Pinnipeds or seals. The most common species in the Gulf is the bottlenosed dolphin, an inshore species. Offshore, the spotted dolphin, is fairly common. Most other species are recorded from very few sightings or strandings. None of the endangered species is common in potential OTEC sites in the Gulf of Mexico. Twenty-two marine mammals may occur in Hawaii; 2 Mystecetes, 19 Odonotocetes, and the endemic monk seal. The monk seal,more » an endangered species, lives in the extreme northwestern island chain away from potential OTEC sites. Among the most common cetaceans in Hawaii is the endangered humpback whale. The spinner dolphin and the bottlenosed dolphin are also fairly common. The baleen whales feed on zooplankton during the summer in polar waters, and are migratory, while the toothed whales feed mainly on fish and squid, and are found in temperate or tropical regions year-round. The manatee is vegetarian and the pinnipeds are fish- or squid-eaters. Environmental effects of OTEC which may affect mammals are: toxic effects of biocide release or ammonia spill, biostimulating effects of seawater redistribution, oil spills, or effects of the physical presence of OTEC plants.« less
NASA Gulf of Mexico Initiative Hypoxia Research
NASA Technical Reports Server (NTRS)
Armstrong, Curtis D.
2012-01-01
The Applied Science & Technology Project Office at Stennis Space Center (SSC) manages NASA's Gulf of Mexico Initiative (GOMI). Addressing short-term crises and long-term issues, GOMI participants seek to understand the environment using remote sensing, in-situ observations, laboratory analyses, field observations and computational models. New capabilities are transferred to end-users to help them make informed decisions. Some GOMI activities of interest to the hypoxia research community are highlighted.
Twichell, David C.; Cross, VeeAnn A.; Paskevich, Valerie F.; Hutchinson, Deborah R.; Winters, William J.; Hart, Patrick E.
2006-01-01
Since 1982 the U. S. Geological Survey (USGS) has collected a large amount of surficial and shallow subsurface geologic information in the deep-water parts of the US EEZ in the northern Gulf of Mexico. These data include digital sidescan sonar imagery, digital seismic-reflection data, and descriptions and analyses of piston and gravity cores. The data were collected during several different projects that addressed surficial and shallow subsurface geologic processes. Some of these datasets have already been published, but the growing interest in the occurrence and distribution of gas hydrates in the Gulf of Mexico warrants integrating these existing USGS datasets and associated interpretations into a Geographic Information System (GIS) to provide regional background information for ongoing and future gas hydrate research. This GIS is organized into five different components that contain (1) information needed to develop an assessment of gas hydrates, (2) background information for the Gulf of Mexico, (3) cores collected by the USGS, (4) seismic surveys conducted by the USGS, and (5) sidescan sonar surveys conducted by the USGS. A brief summary of the goals and findings of the USGS field programs in the Gulf of Mexico is given in the Geologic Findings section, and then the contents of each of the five data categories are described in greater detail in the GIS Data Catalog section.
Gas Hydrate Characterization from a 3D Seismic Dataset in the Eastern Deepwater Gulf of Mexico
DOE Office of Scientific and Technical Information (OSTI.GOV)
McConnell, Dan
The presence of a gas hydrate petroleum system and seismic attributes derived from 3D seismic data are used for the identification and characterization of gas hydrate deposits in the deepwater eastern Gulf of Mexico. In the central deepwater Gulf of Mexico (GoM), logging while drilling (LWD) data provided insight to the amplitude response of gas hydrate saturation in sands, which could be used to characterize complex gas hydrate deposits in other sandy deposits. In this study, a large 3D seismic data set from equivalent and distal Plio-Pleistocene sandy channel deposits in the deepwater eastern Gulf of Mexico is screened formore » direct hydrocarbon indicators for gas hydrate saturated sands.« less
Federal Register 2010, 2011, 2012, 2013, 2014
2011-07-15
... Gulf of Mexico Non-Sandbar Large Coastal Shark Fishery AGENCY: Commerce, National Oceanic and...: NMFS is closing the commercial fishery for non-sandbar large coastal sharks (LCS) in the Gulf of Mexico...: The Atlantic shark fisheries are managed under the 2006 Consolidated Atlantic Highly Migratory Species...
Migratory corridors of adult female Kemp’s ridley turtles in the Gulf of Mexico
Shaver, Donna J.; Hart, Kristen M.; Fujisaki, Ikuko; Rubio, Cynthia; Sartain-Iverson, Autumn R.; Pena, Jaime; Gamez, Daniel Gomez; Gonzales Diaz Miron, Raul de Jesus; Burchfield, Patrick M.; Martinez, Hector J.; Ortiz, Jaime
2016-01-01
For many marine species, locations of migratory pathways are not well defined. We used satellite telemetry and switching state-space modeling (SSM) to define the migratory corridor used by Kemp's ridley turtles (Lepidochelys kempii) in the Gulf of Mexico. The turtles were tagged after nesting at Padre Island National Seashore, Texas, USA from 1997 to 2014 (PAIS; n = 80); Rancho Nuevo, Tamaulipas, Mexico from 2010 to 2011 (RN; n = 14); Tecolutla, Veracruz, Mexico from 2012 to 2013 (VC; n = 13); and Gulf Shores, Alabama, USA during 2012 (GS; n = 1). The migratory corridor lies in nearshore Gulf of Mexico waters in the USA and Mexico with mean water depth of 26 m and a mean distance of 20 km from the nearest mainland coast. Migration from the nesting beach is a short phenomenon that occurs from late-May through August, with a peak in June. There was spatial similarity of post-nesting migratory pathways for different turtles over a 16 year period. Thus, our results indicate that these nearshore Gulf waters represent a critical migratory habitat for this species. However, there is a gap in our understanding of the migratory pathways used by this and other species to return from foraging grounds to nesting beaches. Therefore, our results highlight the need for tracking reproductive individuals from foraging grounds to nesting beaches. Continued tracking of adult females from PAIS, RN, and VC nesting beaches will allow further study of environmental and bathymetric components of migratory habitat and threats occurring within our defined corridor. Furthermore, the existence of this migratory corridor in nearshore waters of both the USA and Mexico demonstrates that international cooperation is necessary to protect essential migratory habitat for this imperiled species.
Habitat-based cetacean density models for the U.S. Atlantic and Gulf of Mexico
NASA Astrophysics Data System (ADS)
Roberts, Jason J.; Best, Benjamin D.; Mannocci, Laura; Fujioka, Ei; Halpin, Patrick N.; Palka, Debra L.; Garrison, Lance P.; Mullin, Keith D.; Cole, Timothy V. N.; Khan, Christin B.; McLellan, William A.; Pabst, D. Ann; Lockhart, Gwen G.
2016-03-01
Cetaceans are protected worldwide but vulnerable to incidental harm from an expanding array of human activities at sea. Managing potential hazards to these highly-mobile populations increasingly requires a detailed understanding of their seasonal distributions and habitats. Pursuant to the urgent need for this knowledge for the U.S. Atlantic and Gulf of Mexico, we integrated 23 years of aerial and shipboard cetacean surveys, linked them to environmental covariates obtained from remote sensing and ocean models, and built habitat-based density models for 26 species and 3 multi-species guilds using distance sampling methodology. In the Atlantic, for 11 well-known species, model predictions resembled seasonal movement patterns previously suggested in the literature. For these we produced monthly mean density maps. For lesser-known taxa, and in the Gulf of Mexico, where seasonal movements were less well described, we produced year-round mean density maps. The results revealed high regional differences in small delphinoid densities, confirmed the importance of the continental slope to large delphinoids and of canyons and seamounts to beaked and sperm whales, and quantified seasonal shifts in the densities of migratory baleen whales. The density maps, freely available online, are the first for these regions to be published in the peer-reviewed literature.
Habitat-based cetacean density models for the U.S. Atlantic and Gulf of Mexico
Roberts, Jason J.; Best, Benjamin D.; Mannocci, Laura; Fujioka, Ei; Halpin, Patrick N.; Palka, Debra L.; Garrison, Lance P.; Mullin, Keith D.; Cole, Timothy V. N.; Khan, Christin B.; McLellan, William A.; Pabst, D. Ann; Lockhart, Gwen G.
2016-01-01
Cetaceans are protected worldwide but vulnerable to incidental harm from an expanding array of human activities at sea. Managing potential hazards to these highly-mobile populations increasingly requires a detailed understanding of their seasonal distributions and habitats. Pursuant to the urgent need for this knowledge for the U.S. Atlantic and Gulf of Mexico, we integrated 23 years of aerial and shipboard cetacean surveys, linked them to environmental covariates obtained from remote sensing and ocean models, and built habitat-based density models for 26 species and 3 multi-species guilds using distance sampling methodology. In the Atlantic, for 11 well-known species, model predictions resembled seasonal movement patterns previously suggested in the literature. For these we produced monthly mean density maps. For lesser-known taxa, and in the Gulf of Mexico, where seasonal movements were less well described, we produced year-round mean density maps. The results revealed high regional differences in small delphinoid densities, confirmed the importance of the continental slope to large delphinoids and of canyons and seamounts to beaked and sperm whales, and quantified seasonal shifts in the densities of migratory baleen whales. The density maps, freely available online, are the first for these regions to be published in the peer-reviewed literature. PMID:26936335
Sea anemones (Cnidaria, Anthozoa, Actiniaria) from coral reefs in the southern Gulf of Mexico.
González-Muñoz, Ricardo; Simões, Nuno; Tello-Musi, José Luis; Rodríguez, Estefanía
2013-01-01
Seven sea anemone species from coral reefs in the southern Gulf of Mexico are taxonomically diagnosed and images from living specimens including external and internal features, and cnidae are provided. Furthermore, the known distribution ranges from another 10 species are extended. No species records of sea anemones have been previously published in the primary scientific literature for coral reefs in the southern Gulf of Mexico and thus, this study represents the first inventory for the local actiniarian fauna.
The Gulf of Mexico Coastal Ocean Observing System: A Decade of Data Aggregation and Services.
NASA Astrophysics Data System (ADS)
Howard, M.; Gayanilo, F.; Kobara, S.; Baum, S. K.; Currier, R. D.; Stoessel, M. M.
2016-02-01
The Gulf of Mexico Coastal Ocean Observing System Regional Association (GCOOS-RA) celebrated its 10-year anniversary in 2015. GCOOS-RA is one of 11 RAs organized under the NOAA-led U.S. Integrated Ocean Observing System (IOOS) Program Office to aggregate regional data and make these data publicly-available in preferred forms and formats via standards-based web services. Initial development of GCOOS focused on building elements of the IOOS Data Management and Communications Plan which is a framework for end-to-end interoperability. These elements included: data discovery, catalog, metadata, online-browse, data access and transport. Initial data types aggregated included near real-time physical oceanographic, marine meteorological and satellite data. Our focus in the middle of the past decade was on the production of basic products such as maps of current oceanographic conditions and quasi-static datasets such as bathymetry and climatologies. In the latter part of the decade we incorporated historical physical oceanographic datasets and historical coastal and offshore water quality data into our holdings and added our first biological dataset. We also developed web environments and products to support Citizen Scientists and stakeholder groups such as recreational boaters. Current efforts are directed towards applying data quality assurance (testing and flagging) to non-federal data, data archiving at national repositories, serving and visualizing numerical model output, providing data services for glider operators, and supporting marine biodiversity observing networks. GCOOS Data Management works closely with the Gulf of Mexico Research Initiative Information and Data Cooperative and various groups involved with Gulf Restoration. GCOOS-RA has influenced attitudes and behaviors associated with good data stewardship and data management practices across the Gulf and will to continue to do so into the next decade.
2014 Gulf of Mexico Hypoxia Forecast
Scavia, Donald; Evans, Mary Anne; Obenour, Dan
2014-01-01
The Gulf of Mexico annual summer hypoxia forecasts are based on average May total nitrogen loads from the Mississippi River basin for that year. The load estimate, recently released by USGS, is 4,761 metric tons per day. Based on that estimate, we predict the area of this summer’s hypoxic zone to be 14,000 square kilometers (95% credible interval, 8,000 to 20,000) – an “average year”. Our forecast hypoxic volume is 50 km3 (95% credible interval, 20 to 77).
Why is Habitat Restoration Near the Gulf of Mexico Essential?
Gulf of Mexico coastal wetlands protect coastal areas from storm damage and sea level rise, support tourism, hunting, and fishing, serve as nesting and foraging habitat for wildlife, improve water quality by removing pollutants, and minimize erosion.
Gulf of Mexico Gas Hydrate Joint Industry Project Leg II: Results from the Alaminos Canyon 21 Site
NASA Astrophysics Data System (ADS)
Godfriaux, P. D.; Shedd, W.; Frye, M.; Collett, T. S.; Lee, M. W.; Boswell, R. M.; Cook, A.; Mrozewski, S.; Guerin, G.; McConnell, D.; Dufrene, R.; Jones, E.
2009-12-01
The Gulf of Mexico Gas Hydrate Joint Industry Project Leg II drilling program visited three sites in the Gulf of Mexico during a 21 day drilling program in April and May, 2009. Using both petroleum systems and seismic stratigraphic approaches, the exploration focus for Leg II was to identify sites with the potential for gas hydrate-saturated sand reservoirs. Two holes were drilled at the AC 21 site in the Diana Basin located in the western Gulf of Mexico. The data acquired consist of a comprehensive suite of high resolution LWD logs including gamma ray, density, porosity, sonic, and resistivity tools. No physical samples were taken in the field. The primary objective of each well was to determine the presence or absence of gas hydrate from the log data at the predetermined primary targets in a Pleistocene basin floor turbidite complex approximately 500 ft below seafloor. At the AC 21-A location, two high net to gross target sands were encountered that measured 15 ft and 60 ft, respectively. The AC 21-A well was drilled through the interpreted base of gas hydrate stability to a depth approximately 1500 ft below sea floor. The AC 21-B well encountered a single high net to gross target sand measuring over 120 ft thick. At both AC 21 well locations, all target sand intervals had elevated formation resistivity measurements relative to clearly wet, stratigraphically equivalent sands encountered in the region, interpreted to indicate low to moderate levels of gas hydrate saturation. The likely discovery of thick gas hydrate-filled sands at the AC 21 site validates the exploration approach, and strongly indicates that gas hydrate can be found in reservoir quality sands. The LWD acquired data provided unprecedented information on the nature of the sediments and the occurrence of gas hydrate in the Gulf of Mexico.
NASA Astrophysics Data System (ADS)
Aranda-Gómez, José Jorge; Carranza-Castañeda, Oscar; Wang, Xiaoming; Tseng, Z. Jack; Pacheco-Castro, Adolfo
2018-04-01
The recent discovery of a fossil of Enhydritherium terraenovae in upper Miocene fluvial deposits in Juchipila (Mexico), nearly 200 km away from the nearest coast, together with other known occurrences of the same species in Florida and California, made possible to envision an alternative to the Panamanian and Polar routes of migration through fluvial systems in Mexico. In order to cross from one ocean to the other, individuals of E. terraenovae must have passed the continental divide, which is a physiographic feature that separates surface waters that flow into the Atlantic and Pacific versants. Two vast endorheic regions, which together span more than 400,000 km2 in area, currently dominate drainage systems in northern and central Mexico. The endorheic regions are broadly bounded by two mountain ranges and coincide with the arid and semi-arid regions of the Chihuahuan desert. These closed basins are an additional obstacle for migration. However, drainage systems are constantly varying and adjusting to changing conditions imposed by climate, tectonic activity, volcanism, and pronounced asymmetries in topography and rainfall distribution. The migration route across Mexico for Enhydritherium terraenovae in the late Miocene (≥6 Ma) could have been facilitated by one or more river captures that inverted the flow direction near the headwaters of a drainage system that debouched either into the Gulf of Mexico or the Pacific coast. Biologists studying fresh water fish faunas in the southern part of the United States and in northern and central Mexico have documented several living species that occur in both the Rio Grande and in the Mezquital rivers, two drainages that are not presently connected, drain in opposite directions (i.e. towards the Gulf of Mexico and the Gulf of California, respectively) and are separated by the endorheic regions. Furthermore, systematic studies of fresh water fish faunas in the region has numerous examples of endemicity and allopatric
INDEX OF ESTUARINE BENTHIC INTEGRITY FOR GULF OF MEXICO ESTUARIES
A benthic index for northern Gulf of Mexico estuaries has been developed and successfully validated by the Environmental Monitoring and Assessment Program for Estuaries (EMAP-E) in the Louisianian Province. The benthic index is a useful indicator of estuarine condition that provi...
Toxiological Considerations in the Gulf of Mexico Oil Spill
The Deep Water Horizon oil rig exploded on April 20, 2010, resulting in an ongoing release of light sweet petroleum crude oil and methane into Gulf of Mexico waters. The release from the deepwater wellhead 41 miles from Louisiana is at approximately 1 mile depth, and flow rates e...
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2011-11-23
...-AA00 Safety Zone; Marco Island Marriott Charity Fireworks Display, Gulf of Mexico, Marco Island, FL... establish a temporary safety zone on the waters of the Gulf of Mexico in the vicinity of Marco Island... reached the Facility, please enclose a stamped, self-addressed postcard or envelope. We will consider all...
Gulf of California biogeographic regions based on coastal zone color scanner imagery
NASA Astrophysics Data System (ADS)
SantamaríA-Del-Angel, Eduardo; Alvarez-Borrego, Saúl; Müller-Karger, Frank E.
1994-04-01
Topographically, the Gulf of California is divided into a series of basins and trenches that deepen to the south. Maximum depth at the mouth is greater than 3000 m. Most of the northern gulf is less than 200 m deep. The gulf has hydrographic features conducive to high primary productivity. Upwelling events have been described on the basis of temperature distributions at the eastern coast during winter and spring and at the western coast during summer. Tidal amplitude may be as high as 9 m in the upper gulf. On the basis of discrete phytoplankton sampling, the gulf was previously divided into four geographic regions. This division took into consideration only the space distribution, taxonomic composition, and abundance of microphytoplankton. With the availability of the coastal zone color scanner (CZCS) imagery, we were able to include the time variability of pigments to make a more detailed biogeographic division of the gulf. With weekly composites of the imagery, we generated time series of pigment concentrations for 33 locations throughout the gulf and for the whole life span of the CZCS. The time series show a clear seasonal variation, with maxima in winter and spring and minima in summer. The effect of upwelling at the eastern coast is clearly evident, with high pigment concentrations. The effect of the summer upwelling off the Baja California coast is not evident in these time series. Time series from locations on the western side of the gulf also show maxima in winter and spring that are due to the eddy circulation that brings upwelled water from the eastern side. Principal-component analysis was applied to define 14 regions. Ballenas Channel, between Angel de la Guarda and Baja California, and the upper gulf always appeared as very distinct regions. Some of these 14 regions relate to the geographic distributions of important faunal groups, including the benthos, or their life cycles. For example, the upper gulf is a place for reproduction and the nursery of
Vázquez-Bader, Ana Rosa; Gracia, Adolfo
2016-01-01
Abstract We examined the diversity, abundance, distribution, and average size of squat lobsters collected during eight cruises conducted on the continental shelf and slope of the Gulf of Mexico (Mexican/USA border to the Caribbean Sea). Six species belonging to two genera of Chirostyloidea, and 25 species of four genera of Galatheoidea are reported. A total of 1513 specimens were obtained of which 95 were Chirostylidae, two Galatheidae, 285 Munidopsidae, and 1131 Munididae. Of the species collected, 13.8% were only known from Caribbean Sea. Three species of Chirostylidae—Gastroptychus salvadori, Uroptychus capillatus, and Uroptychus spiniger—as well two of Munidopsidae, Munidopsis bradleyi and Munidopsis riveroi, are recorded for the first time in the Gulf of Mexico. The upper bathymetric range of one species and the lower one for eight species are extended. Biological and ecological traits of squat lobsters in the southern Gulf of Mexico are also provided. PMID:27667921
Vázquez-Bader, Ana Rosa; Gracia, Adolfo
2016-01-01
We examined the diversity, abundance, distribution, and average size of squat lobsters collected during eight cruises conducted on the continental shelf and slope of the Gulf of Mexico (Mexican/USA border to the Caribbean Sea). Six species belonging to two genera of Chirostyloidea, and 25 species of four genera of Galatheoidea are reported. A total of 1513 specimens were obtained of which 95 were Chirostylidae, two Galatheidae, 285 Munidopsidae, and 1131 Munididae. Of the species collected, 13.8% were only known from Caribbean Sea. Three species of Chirostylidae-Gastroptychus salvadori, Uroptychus capillatus, and Uroptychus spiniger-as well two of Munidopsidae, Munidopsis bradleyi and Munidopsis riveroi, are recorded for the first time in the Gulf of Mexico. The upper bathymetric range of one species and the lower one for eight species are extended. Biological and ecological traits of squat lobsters in the southern Gulf of Mexico are also provided.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-11-15
... open to the public. See SUPPLEMENTARY INFORMATION. DATES: The SEDAR 38 Data Workshop will be held from... the South Atlantic and the Gulf of Mexico; Southeast Data, Assessment and Review (SEDAR); Public... (NOAA), Commerce. ACTION: Notice of SEDAR 38 Data Workshop for South Atlantic and Gulf of Mexico King...
Origin of Slope Failure in the Ursa Region, Northern Gulf of Mexico
NASA Astrophysics Data System (ADS)
Stigall, J.; Dugan, B.
2008-12-01
We use one-dimensional fluid flow and stability models to predict the evolution of overpressure and stability conditions of IODP Expedition Sites U1322 and U1324 in the Ursa region, northern Gulf of Mexico. Simulations of homogenous mud deposited at 3 and 12 mm/yr for Sites U1322 and U1324, with permeability (k) on the order of 10-17m2 and bulk compressibility of .4 /MPa, predict overpressures up to .45MPa and 1MPa in shallow sediments (<200m below sea floor). With limit equilibrium calculations for an infinite slope, these overpressures equate to a factor of safety (FS) greater than 10 and 4.5 for a internal friction angle of 26° and a seafloor slope of 2°. This implies stability throughout the last 50,000 years. Seismic and core observations, however, document major slope failures that span the entire Ursa region. Permeability in this region is well constrained by laboratory experiments, so we investigate how pulsed (high-to-low) sedimentation rates could have created unstable conditions, FS <1. Models with periods of high sedimentation generate overpressure that create unstable conditions while maintaining the time-averaged sedimentation rates. Other factors which are not possible to simulate in one dimension, such as a complex basin geometry, also influence the conditions that caused the past failures. A two-dimensional model linking lateral flow between the sites with the interpreted geometry from seismic stratigraphy gives a better picture of the flow field and instability within the basin. Asymmetrical loading of permeable sediments could have created a lateral difference in pore pressures which would have driven lateral flow from Site U1324 to Site U1322 where overpressures are higher than our one-dimensional models suggest. We anticipate that two-dimensional models with transient sedimentation patterns will enhance our understanding of flow in marginally stable environments and triggers of slope failures in passive margin systems.
NASA Astrophysics Data System (ADS)
Keller, G. R.; Mickus, K. L.; Gurrola, H.; Harry, D. L.; Pulliam, J.
2016-12-01
A full understanding of the Gulf of Mexico's geologic history depends on understanding the tectonic framework along the southern margin of North America. The first step in establishing this framework was the breakup of Laurentia during the Early Paleozoic. At least one tectonic block rifted away from Laurentia's southern margin at this time, and is interpreted to be presently located in Argentina. Rifting resulted in a sinuous margin consisting of alternating ridge and transform segments extending from the southeastern U.S. across Texas into northern Mexico. The Paleozoic margin is associated with a clearly defined gravity high, and ends in the trend of this high are associated with intersections of ridge and transform segments along the margin. By the end of the Paleozoic, continental assembly via the Appalachian-Ouachita orogeny added new terranes to the eastern and southern margins of Laurentia and the assembly of the supercontinent Pangea was complete. Triassic through Late Jurassic opening of the Gulf of Mexico (GOM) created a complex margin, initially mobilizing several crustal blocks that were eventually left behind on the North American margin as seafloor spreading developed within the Gulf and the Yucatan block separated and rotated into its current position. Recent deep seismic reflection profiles along the northern margin of the GOM show that rifted continental crust extends offshore for 250 km before the oceanic crust of the Gulf of Mexico is encountered. Our group has worked to produce four integrated models of the lithospheric structure based upon reflection, refraction, and teleseismic data acquired across this margin integrated with gravity, magnetic, geologic and drilling data. These models define a complex zone of crustal thinning along the Gulf Coastal plain of Texas that is covered by up to 10km of primarily Cretaceous and younger sedimentary rocks. To the east along the coastal plain region, we have defined two large crustal blocks that were
Sea anemones (Cnidaria, Anthozoa, Actiniaria) from coral reefs in the southern Gulf of Mexico
González-Muñoz, Ricardo; Simões, Nuno; Tello-Musi, José Luis; Rodríguez, Estefanía
2013-01-01
Abstract Seven sea anemone species from coral reefs in the southern Gulf of Mexico are taxonomically diagnosed and images from living specimens including external and internal features, and cnidae are provided. Furthermore, the known distribution ranges from another 10 species are extended. No species records of sea anemones have been previously published in the primary scientific literature for coral reefs in the southern Gulf of Mexico and thus, this study represents the first inventory for the local actiniarian fauna. PMID:24146599
The Environmental Protection Agency (EPA) and U.S. Geological Survey (USGS) initiated a two-year regional pilot survey in 2007 to develop, test, and validate tools and approaches to assess the condition of northern Gulf of Mexico (GOM) coastal wetlands. Sampling sites were select...
Shear wave velocities of unconsolidated shallow sediments in the Gulf of Mexico
Lee, Myung W.
2013-01-01
Accurate shear-wave velocities for shallow sediments are important for a variety of seismic applications such as inver-sion and amplitude versus offset analysis. During the U.S. Department of Energy-sponsored Gas Hydrate Joint Industry Project Leg II, shear-wave velocities were measured at six wells in the Gulf of Mexico using the logging-while-drilling SonicScope acoustic tool. Because the tool measurement point was only 35 feet from the drill bit, the adverse effect of the borehole condition, which is severe for the shallow unconsolidated sediments in the Gulf of Mexico, was mini-mized and accurate shear-wave velocities of unconsolidated sediments were measured. Measured shear-wave velocities were compared with the shear-wave velocities predicted from the compressional-wave velocities using empirical formulas and the rock physics models based on the Biot-Gassmann theory, and the effectiveness of the two prediction methods was evaluated. Although the empirical equation derived from measured shear-wave data is accurate for predicting shear-wave velocities for depths greater than 500 feet in these wells, the three-phase Biot-Gassmann-theory -based theory appears to be optimum for predicting shear-wave velocities for shallow unconsolidated sediments in the Gulf of Mexico.
Thompson, P O; Findley, L T; Vidal, O
1992-12-01
Low-frequency vocalizations were recorded from fin whales, Balaenoptera physalus, in the Gulf of California, Mexico, during three cruises. In March 1985, recorded 20-Hz pulses were in sequences of regular 9-s interpulse intervals. In August 1987, nearly all were in sequences of doublets with alternating 5- and 18-s interpulse intervals. No 20-Hz pulse sequences of any kind were detected in February 1987. The typical pulse modulated from 42 to 20 Hz and its median duration was 0.7 s (1985 data). Most other fin whale sounds were also short tonal pulses averaging 82, 56, and 68 Hz, respectively, for the three cruises; 89% were modulated in frequency, mostly downward. Compared to Atlantic and Pacific Ocean regions, Gulf of California 20-Hz pulses were unique in terms of frequency modulation, interpulse sound levels, and temporal patterns. Fin whales in the Gulf may represent a regional stock revealed by their sound characteristics, a phenomenon previously shown for humpback whales, birds, and fish. Regional differences in fin whale sounds were found in comparisons of Atlantic and Pacific locations.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-01-23
.... 111104664-1798-01] RIN 0648-BB61 Shrimp Fisheries of the Gulf of Mexico and South Atlantic; Revisions of..., regarding proposed changes to shrimp regulations. The proposed rule stated that the ``Expanded Mesh BRD'' would be decertified for use by the Gulf of Mexico shrimp fishery after May 24, 2012. That information...
Gas hydrate characterization from a 3D seismic dataset in the deepwater eastern Gulf of Mexico
DOE Office of Scientific and Technical Information (OSTI.GOV)
McConnell, Daniel; Haneberg, William C.
Principal component analysis of spectral decomposition results combined with amplitude and frequency seismic attributes derived from 3D seismic data are used for the identification and characterization of gas hydrate deposits in the deepwater eastern Gulf of Mexico. In the central deepwater Gulf of Mexico (GoM), logging while drilling LWD data provided insight to the amplitude response of gas hydrate saturation in sands, which could be used to characterize complex gas hydrate deposits in other sandy deposits. In this study, a large 3D seismic data set from equivalent and distal Plio Pleistocene sandy channel deposits in the deepwater eastern Gulf ofmore » Mexico is screened for direct hydrocarbon indicators for gas hydrate saturated sands.« less
NASA Astrophysics Data System (ADS)
Pour Biazar, A.; Khan, M. N.; Park, Y. H.; McNider, R. T.; Cameron, B.
2010-12-01
The assessment of potential environmental impact of oil and gas operations in the Gulf of Mexico (GoM) and in particular the onshore air quality impact of such operations is important to State and Federal regulatory agencies. In adapting sound policies for control strategies, it is crucial to assess the impact of local pollution versus transboundary air pollution, and in a region such as GoM with scarce monitoring capability over open waters such distinctions represents a challenge. Furthermore, GoM region can be impacted by the recirculation of pollution in the southeastern United States. The current study examines the efficacy of utilizing the newly available satellite observations of aerosols and trace gases in air quality impacts assessment for addressing these issues. In particular, ozone profiles from the Tropospheric Emission Spectrometer (TES) and Ozone Monitoring Instrument (OMI) onboard Aura and aerosol products from Moderate Resolution Imaging Spectroradiometer (MODIS) onboard Terra and Aqua satellites were utilized in a modeling study during August 2006. The satellite observations were used in the specification of the background and lateral boundary and also once daily for the re-adjustment of the concentration fields. The results were then evaluated against ozonesonde and surface observations. The utilization of OMI ozone profiles significantly improved model performance in the free troposphere and the use of MODIS aerosol products substantially enhanced model prediction of aerosols in the boundary layer. Neither OMI nor TES provide adequate information in the boundary layer with respect to O3 and as a result they can only marginally impact ozone predictions in the boundary layer. The utilization of the satellite data for lateral boundary condition (BC) was helpful in the realization of transboundary transport of pollution. The hypothesis that the recirculation of pollution from Northeast Corridor can play a role over the Gulf of Mexico was tested and
Tiered on-the-ground implementation projects for Gulf of Mexico water quality improvements
USDA-ARS?s Scientific Manuscript database
Both the Gulf Hypoxia Action Plan for Reducing, Mitigating, and Controlling Hypoxia in the Northern Gulf of Mexico and Improving Water Quality in the Mississippi River Basin (USEPA 2008) and the GOMA Governors’ Action Plan II for Healthy and Resilient Coasts (GOMA 2009) call for the development and ...
Gulf of Mexico dissolved oxygen model (GoMDOM) research and quality assurance project plan
An integrated high resolution mathematical modeling framework is being developed that will link hydrodynamic, atmospheric, and water quality models for the northern Gulf of Mexico. This Research and Quality Assurance Project Plan primarily focuses on the deterministic Gulf of Me...
Permeability and compressibility of resedimented Gulf of Mexico mudrock
NASA Astrophysics Data System (ADS)
Betts, W. S.; Flemings, P. B.; Schneider, J.
2011-12-01
We use a constant-rate-of strain consolidation test on resedimented Gulf of Mexico mudrock to determine the compression index (Cc) to be 0.618 and the expansion index (Ce) to be 0.083. We used crushed, homogenized Pliocene and Pleistocene mudrock extracted from cored wells in the Eugene Island block 330 oil field. This powdered material has a liquid limit (LL) of 87, a plastic limit (PL) of 24, and a plasticity index (PI) of 63. The particle size distribution from hydrometer analyses is approximately 65% clay-sized particles (<2 μm) with the remainder being less than 70 microns in diameter. Resedimented specimens have been used to characterize the geotechnical and geophysical behavior of soils and mudstones independent of the variability of natural samples and without the effects of sampling disturbance. Previous investigations of resedimented offshore Gulf of Mexico sediments (e.g. Mazzei, 2008) have been limited in scope. This is the first test of the homogenized Eugene Island core material. These results will be compared to in situ measurements to determine the controls on consolidation over large stress ranges.
Marine Habitats. Man and the Gulf of Mexico Series.
ERIC Educational Resources Information Center
Irby, Bobby N.; And Others
"Man and the Gulf of Mexico (MGM)" is a marine science curriculum developed to meet the marine science needs of tenth through twelfth grade students in Mississippi and Alabama schools. This MGM unit, which focuses on marine habitats, contains an introduction (with unit objectives and brief introductory comments) followed by five…
Dennen, Kristin O.; Hackley, Paul C.
2012-01-01
An assessment unit (AU) for undiscovered continuous “shale” gas in Lower Cretaceous (Aptian and Albian) and basal Upper Cretaceous (lower Cenomanian) rocks in the USA onshore Gulf of Mexico coastal plain recently was defined by the U.S. Geological Survey (USGS). The AU is part of the Upper Jurassic-Cretaceous-Tertiary Composite Total Petroleum System (TPS) of the Gulf of Mexico Basin. Definition of the AU was conducted as part of the 2010 USGS assessment of undiscovered hydrocarbon resources in Gulf Coast Mesozoic stratigraphic intervals. The purpose of defining the Greater Gulf Basin Lower Cretaceous Shale Gas AU was to propose a hypothetical AU in the Cretaceous part of the Gulf Coast TPS in which there might be continuous “shale” gas, but the AU was not quantitatively assessed by the USGS in 2010.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-11-07
... the Caribbean, Gulf of Mexico, and South Atlantic; Amendment 28 to the Fishery Management Plan for the... collaboration with the Gulf of Mexico Fishery Management Council (Council) intends to prepare a DEIS to describe and analyze management alternatives to be included in Amendment 28 to the Fishery Management Plan (FMP...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-12-24
... the Caribbean, Gulf of Mexico, and South Atlantic; Amendment 40 to the Fishery Management Plan for the... collaboration with the Gulf of Mexico Fishery Management Council (Council) intends to prepare a DEIS to describe and analyze management alternatives to be included in Amendment 40 to the Fishery Management Plan (FMP...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-02-02
... the Caribbean, Gulf of Mexico, and South Atlantic; Amendment 32 to the Fishery Management Plan for the... collaboration with the Gulf of Mexico Fishery Management Council (Council) intends to prepare a DEIS to describe and analyze management alternatives to be included in an amendment to the Fishery Management Plan for...
76 FR 81480 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-12-28
... CONTACT: Dr. Richard Leard, Deputy Executive Director/Senior Fishery Biologist; Gulf of Mexico Fishery... contact Kathy Pereira at the Council (see ADDRESSES) at least 5 working days prior to the webinar. Dated...
78 FR 59656 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-09-27
.... Steven Atran, Senior Fishery Biologist, Gulf of Mexico Fishery Management Council; telephone: (813) 348... least 5 working days prior to the meeting. Note: The times and sequence specified in this agenda are...
Code of Federal Regulations, 2014 CFR
2014-07-01
... Gulf of Mexico adjacent to Santa Rosa Island, Armament Center, Eglin Air Force Base, Fla. 334.730... Mexico adjacent to Santa Rosa Island, Armament Center, Eglin Air Force Base, Fla. (a) The areas—(1) The... CFR part 329, including the waters of Santa Rosa Sound and Gulf of Mexico within a circle one nautical...
Code of Federal Regulations, 2013 CFR
2013-07-01
... Gulf of Mexico adjacent to Santa Rosa Island, Armament Center, Eglin Air Force Base, Fla. 334.730... Mexico adjacent to Santa Rosa Island, Armament Center, Eglin Air Force Base, Fla. (a) The areas—(1) The... CFR part 329, including the waters of Santa Rosa Sound and Gulf of Mexico within a circle one nautical...
Code of Federal Regulations, 2012 CFR
2012-07-01
... Gulf of Mexico adjacent to Santa Rosa Island, Armament Center, Eglin Air Force Base, Fla. 334.730... Mexico adjacent to Santa Rosa Island, Armament Center, Eglin Air Force Base, Fla. (a) The areas—(1) The... CFR part 329, including the waters of Santa Rosa Sound and Gulf of Mexico within a circle one nautical...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-09-14
... States Marine Fisheries Commission, and the Gulf States Marine Fisheries Commission, implemented the... the South Atlantic, Gulf of Mexico, and Caribbean; Southeast Data, Assessment, and Review (SEDAR...) 769-4520; email: [email protected] . SUPPLEMENTARY INFORMATION: The South Atlantic, Gulf of...
2010-06-01
when Caribbean oceanic water flows northward into the Gulf of Mexico via the Yucatan Channel. After penetrating the Gulf, the current turns east and...the Gulf of Mexico from Florida to the Yucatan . It inhabits most coastal shores and estuaries and offshore areas to a depth of 115 ft. Blue crabs... Yucatan Peninsula of Mexico (Garduno-Andrade et al. 1999). With respect to the United States, nesting occurs in Puerto Rico, the U.S. Virgin Islands, and
The Louisiana continental shelf (LCS) in the northern Gulf of Mexico experiences bottom water hypoxia in the summer. In order to gain a more fundamental understanding of the controlling factors leading to hypoxia, the Gulf of Mexico Dissolved Oxygen Model (GoMDOM) was applied to ...
EPA scientists in Region 4 (Atlanta) conducted a review of data and information regarding hypoxia in the northern Gulf of Mexico. This Region 4 staff assessment concluded that phosphorus, rather than nitrogen, may be the limiting nutrient controlling Gulf hypoxia. An unauthorize...
Geological and geochemical implications of gas hydrates in the Gulf of Mexico. Final report
DOE Office of Scientific and Technical Information (OSTI.GOV)
Brooks, J.M.; Bryant, W.R.
1985-09-01
This document presents the results of a study of the geological and geochemical implications of gas hydrates in the Gulf of Mexico. The report is based primarily on data obtained from available seismic surveys of the Green Canyon, Garden Banks, Mississippi Canyon, and Orca Basins areas of the northern continental margin of the Gulf of Mexico. The study also includes the data and analysis obtained from several gas hydrate cores recovered in these areas. The report provides new data relevant to gas hydrate research for more in-depth research of the Gulf of Mexico gas hydrates and provides significant information whichmore » advances the knowledge and understanding of gas hydrate formations in the natural environment. The report contains several high resolution seismic surveys. In the four hydrate sites studied in detail, the seismic ''wipeout'' zones were all associated with collapsed structures, fault scarps, and/or salt piercement structures. These features provide conduits for the upward migration of either biogenic or thermogenic gas from depth. 35 refs., 47 figs., 9 tabs.« less
NASA Astrophysics Data System (ADS)
Baker, A. K.; Schuck, T. J.; Rauthe-Schöch, A.; Brenninkmeijer, C. A.
2012-12-01
The CARIBIC project (Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container; www.caribic-atmospheric.com) involves the deployment of an instrument container equipped to make atmospheric measurements from aboard a passenger jet, and has operated since 2005 from aboard a Lufthansa Airbus 340-600. Measurements from the container include in-situ trace gas and aerosol analyses and the collection of aerosol and whole air samples for post-flight laboratory analysis. A suite of 20 non-methane hydrocarbons (NMHCs) are measured from the whole air samples, along with greenhouse gas and halocarbon measurements. As all flights originate in and return to Frankfurt, Germany, the free and upper troposphere (FT/UT) over Europe and the North Atlantic are probed on nearly every flight, and the composition was found to be strongly influenced by air masses from the Gulf of Mexico region. Over 75% of air samples collected during flight had backwards trajectories which passed over the region, and nearly half of these had passed through the lower troposphere and boundary layer, affording CARIBIC a "bird's-eye view" of emissions from the Gulf region. Measurements of NMHCs, and also methane, show distinct fossil fuel extraction signatures for Gulf region outflow, namely relatively large enhancements in C2-C4 alkanes coupled with unique ratios between species. Here we discuss the impact of these emissions and their subsequent chemical transformations on FT/UT composition. We also investigate the possible influence of these emissions on the increase in C2-C4 alkanes observed in the FT/UT by CARIBIC over the last 7 years.
A one-dimensional water quality model, Gulf of Mexico Dissolved Oxygen Model (GoMDOM-1D), was developed to simulate phytoplankton, carbon, nutrients, and dissolved oxygen in Gulf of Mexico. The model was calibrated and corroborated against a comprehensive set of field observation...
THE MAY 23TH 2007 GULF OF MEXICO EARTHQUAKE
NASA Astrophysics Data System (ADS)
Yamamoto, J.; Jimenez, Z.
2009-12-01
On the 23th of May 2007 at 14:09 local time (19:09 UT) an insolated earthquake of local magnitude 5.2 occurred offshore northern Veracruz in the Gulf of Mexico. The seismic focus was located using local and regional data at 20.11° N, 97.38° W and 7.8 km depth at 175 km distance from Tuxpan a city of 134,394 inhabitants. The earthquake was widely felt along the costal states of southern Tamaulipas and Veracruz in which several schools and public buildings were evacuated. Neither Laguna Verde nuclear plant, located approximately 245 km from the epicenter, nor PEMEX petroleum company reported damage. First-motion data indicates that the rupture occurred as strike slip faulting along two possible planes, one oriented roughly north-south and the other east-west. In the present paper a global analysis of the earthquake is made to elucidate its origin and possible correlation with known geotectonic features of the region.
Rebich, Richard A; Houston, Natalie A; Mize, Scott V; Pearson, Daniel K; Ging, Patricia B; Evan Hornig, C
2011-01-01
Abstract SPAtially Referenced Regressions On Watershed attributes (SPARROW) models were developed to estimate nutrient inputs [total nitrogen (TN) and total phosphorus (TP)] to the northwestern part of the Gulf of Mexico from streams in the South-Central United States (U.S.). This area included drainages of the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf hydrologic regions. The models were standardized to reflect nutrient sources and stream conditions during 2002. Model predictions of nutrient loads (mass per time) and yields (mass per area per time) generally were greatest in streams in the eastern part of the region and along reaches near the Texas and Louisiana shoreline. The Mississippi River and Atchafalaya River watersheds, which drain nearly two-thirds of the conterminous U.S., delivered the largest nutrient loads to the Gulf of Mexico, as expected. However, the three largest delivered TN yields were from the Trinity River/Galveston Bay, Calcasieu River, and Aransas River watersheds, while the three largest delivered TP yields were from the Calcasieu River, Mermentau River, and Trinity River/Galveston Bay watersheds. Model output indicated that the three largest sources of nitrogen from the region were atmospheric deposition (42%), commercial fertilizer (20%), and livestock manure (unconfined, 17%). The three largest sources of phosphorus were commercial fertilizer (28%), urban runoff (23%), and livestock manure (confined and unconfined, 23%). PMID:22457582
Revisiting the Mesozoic opening of the Southeastern Gulf of Mexico
NASA Astrophysics Data System (ADS)
Marton, G.; Pascoe, R. P.
2016-12-01
The Southeastern Gulf of Mexico (SEGOM) is defined here as the seaway between Yucatan and Florida, south of the Tampa Embayment. This area is regarded as a southward propagating rift in the Gulf of Mexico. There is an overwhelming amount of previous evidence that the Yucatan block rotated counterclockwise about 42 degrees around a pole located just north of present-day Cuba (23oN, 84oW) during the Late Jurassic to Earliest Cretaceous oceanic spreading phase. North of the pole in the SEGOM the rotational movement of Yucatan was accommodated by a uniformly increasing amount of SW-NE extension. The degree of extension north of 25oN was large enough to result in rifting and oceanic spreading. Lack of salt in the area south of the Tampa embayment indicates that the SEGOM was not affected by the large amount of NW-SE continental extension as observed in the rest of the Gulf of Mexico. Thus, the area between Yucatan and the Sarasota arch remained a land bridge between the proto- GOM and the Proto-Caribbean and formed a barrier to salt deposition. During the period of late Jurassic oceanic crust formation (and Yucatan rotation), the southern tip of the oceanic spreading center propagated south from 27oN to 25oN, or about 220 km. In the 220 km long zone from 25oN to the pole (23oN) the rotation of Yucatan was accommodated by continental rifting only. The validity of the above outlined propagating rift model in the SEGOM is also supported by the age differences in the observed post-rift unconformities along its margins. At the edge of the salt basin to the north, the post-rift unconformity in the upper crust occurs at the base of the Louann salt and thus is Callovian in age. In the southern continental rift segment of the SEGOM, a seismic to well tie at the DSDP Site 535 shows that the post-rift unconformity is no younger than Late Berriasian to Early Valanginian. This latter age bracket constrains a) the cessation of continental rifting in the SEGOM, b) the time when the
NASA Astrophysics Data System (ADS)
Chakraborty, Sumit; Lohrenz, Steven E.; Gundersen, Kjell
2017-06-01
Spatial and temporal variability in photophysiological properties of phytoplankton were examined in relationship to phytoplankton community composition in the river-dominated continental margin of the northern Gulf of Mexico (NGOM). Observations made during five research cruises in the NGOM included phytoplankton photosynthetic and optical properties and associated environmental conditions and phytoplankton community structure. Distinct patterns of spatial and temporal variability in photophysiological parameters were found for waters dominated by different phytoplankton groups. Photophysiological properties for locations associated with dominance by a particular group of phytoplankton showed evidence of photoacclimation as reflected by differences in light absorption and pigment characteristics in relationship to different light environments. The maximum rate of photosynthesis normalized to chlorophyll (PmaxB) was significantly higher for communities dominated (>60% biomass) by cyanobacteria + prochlorophyte (cyano + prochl). The initial slope of the photosynthesis-irradiance (P-E) curve normalized to chlorophyll (αB) was not clearly related to phytoplankton community structure and no significant differences were found in PmaxB and αB between different geographic regions. In contrast, maximum quantum yield of carbon fixation in photosynthesis (Φcmax) differed significantly between regions and was higher for diatom-dominated communities. Multiple linear regression models, specific for the different phytoplankton communities, using a combination of environmental and bio-optical proxies as predictor variables showed considerable promise for estimation of the photophysiological parameters on a regional scale. Such an approach may be utilized to develop size class-specific or phytoplankton group-specific primary productivity models for the NGOM.
Gulf of Mexico Integrated Science - Tampa Bay Study - Data Information Management System (DIMS)
Johnston, James
2004-01-01
The Tampa Bay Integrated Science Study is an effort by the U.S. Geological Survey (USGS) that combines the expertise of federal, state and local partners to address some of the most pressing ecological problems of the Tampa Bay estuary. This project serves as a template for the application of integrated research projects in other estuaries in the Gulf of Mexico. Efficient information and data distribution for the Tampa Bay Study has required the development of a Data Information Management System (DIMS). This information system is being used as an outreach management tool, providing information to scientists, decision makers and the public on the coastal resources of the Gulf of Mexico.
2013 Gulf of Mexico Hypoxia Forecast
Scavia, Donald; Evans, Mary Anne; Obenour, Dan
2013-01-01
The Gulf of Mexico annual summer hypoxia forecasts are based on average May total nitrogen loads from the Mississippi River basin for that year. The load estimate, recently released by USGS, is 7,316 metric tons per day. Based on that estimate, we predict the area of this summer’s hypoxic zone to be 18,900 square kilometers (95% credible interval, 13,400 to 24,200), the 7th largest reported and about the size of New Jersey. Our forecast hypoxic volume is 74.5 km3 (95% credible interval, 51.5 to 97.0), also the 7th largest on record.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-02-04
...) of the Gulf of Mexico (Gulf) to commercial king mackerel fishing using run-around gillnets. This... run-around gillnets and hook-and-line gear (50 CFR 622.42(c)(1)(i)(A)(2)(i)). The southern subzone is... Gulf group king mackerel for vessels using run-around gillnet gear in the southern Florida west coast...
Gulf of Mexico Hypoxia Research Program Data Report 2002-2007
The work described in this report summarizes the data collected during 12 oceanographic cruises conducted from 2002-2007. The project was supported by the US EPA Office of Research and Development, in partnership with the US EPA Gulf of Mexico Program Office, the Office of Water,...
Rebich, R.A.; Houston, N.A.; Mize, S.V.; Pearson, D.K.; Ging, P.B.; Evan, Hornig C.
2011-01-01
SPAtially Referenced Regressions On Watershed attributes (SPARROW) models were developed to estimate nutrient inputs [total nitrogen (TN) and total phosphorus (TP)] to the northwestern part of the Gulf of Mexico from streams in the South-Central United States (U.S.). This area included drainages of the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf hydrologic regions. The models were standardized to reflect nutrient sources and stream conditions during 2002. Model predictions of nutrient loads (mass per time) and yields (mass per area per time) generally were greatest in streams in the eastern part of the region and along reaches near the Texas and Louisiana shoreline. The Mississippi River and Atchafalaya River watersheds, which drain nearly two-thirds of the conterminous U.S., delivered the largest nutrient loads to the Gulf of Mexico, as expected. However, the three largest delivered TN yields were from the Trinity River/Galveston Bay, Calcasieu River, and Aransas River watersheds, while the three largest delivered TP yields were from the Calcasieu River, Mermentau River, and Trinity River/Galveston Bay watersheds. Model output indicated that the three largest sources of nitrogen from the region were atmospheric deposition (42%), commercial fertilizer (20%), and livestock manure (unconfined, 17%). The three largest sources of phosphorus were commercial fertilizer (28%), urban runoff (23%), and livestock manure (confined and unconfined, 23%). ?? 2011 American Water Resources Association. This article is a U.S. Government work and is in the public domain in the USA.
The phytoassessment of wastewater-impacted coastal areas is not common in the Gulf of Mexico region. The objective of this research was to provide some initial information on this issue for eight industrial, municipal, and forest product wastewaters using periphyton as an indicat...
Code of Federal Regulations, 2013 CFR
2013-07-01
... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Regulated Navigation Area, Gulf of Mexico: Mississippi Canyon Block 20, South of New Orleans, LA. 165.840 Section 165.840 Navigation... Limited Access Areas Eighth Coast Guard District § 165.840 Regulated Navigation Area, Gulf of Mexico...
Code of Federal Regulations, 2014 CFR
2014-07-01
... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Regulated Navigation Area, Gulf of Mexico: Mississippi Canyon Block 20, South of New Orleans, LA. 165.840 Section 165.840 Navigation... Limited Access Areas Eighth Coast Guard District § 165.840 Regulated Navigation Area, Gulf of Mexico...
Gulf of Mexico, coast of Yucatan, as seen from the Apollo 7 spacecraft
1968-10-13
AS07-05-1635 (13 Oct. 1968) --- Gulf of Mexico, coast of Yucatan, Mexico, as seen from the Apollo 7 spacecraft during its 33rd revolution of Earth. Note road leading to city of Merida which is under cloud cover. Photographed from an altitude of 123 nautical miles, at ground elapsed time of 52 hours and 37 minutes.
Hart, Kristen M.; Lamont, Margaret M.; Fujisaki, Ikuko; Tucker, Anton D.; Carthy, Raymond R.
2012-01-01
Designing conservation strategies that protect wide-ranging marine species is a significant challenge, but integrating regional telemetry datasets and synthesizing modeled movements and behavior offer promise for uncovering distinct at-sea areas that are important habitats for imperiled marine species. Movement paths of 10 satellite-tracked female loggerheads (Caretta caretta) from three separate subpopulations in the Gulf of Mexico, USA, revealed migration to discrete foraging sites in two common areas at-sea in 2008, 2009, and 2010. Foraging sites were 102–904 km away from nesting and tagging sites, and located off southwest Florida and the northern Yucatan Peninsula, Mexico. Within 3–35 days, turtles migrated to foraging sites where they all displayed high site fidelity over time. Core-use foraging areas were 13.0–335.2 km2 in size, in water <50 m deep, within a mean distance to nearest coastline of 58.5 km, and in areas of relatively high net primary productivity. The existence of shared regional foraging sites highlights an opportunity for marine conservation strategies to protect important at-sea habitats for these imperiled marine turtles, in both USA and international waters. Until now, knowledge of important at-sea foraging areas for adult loggerheads in the Gulf of Mexico has been limited. To better understand the spatial distribution of marine turtles that have complex life-histories, we propose further integration of disparate tracking data-sets at the oceanic scale along with modeling of movements to identify critical at-sea foraging habitats where individuals may be resident during non-nesting periods.
Gardner, James V.; Beaudoin, Jonathan D.; Hughes-Clarke, John E.; Dartnell, Peter
2002-01-01
Following the publication of high-resolution (5-meter spatial resolution) multibeam echosounder (MBES) images of the Flower Garden Banks National Marine Sanctuary area of the northwestern Gulf of Mexico (Gardner et al., 1998), the Flower Garden Banks National Marine Sanctuary (FGBNMS) and the Minerals Management Service (MMS) have been interested in additional MBES data in the area. A coalition of FGBNMS, MMS, and the U.S. Geological Survey (USGS) was formed to map additional areas of interest in the northwestern Gulf of Mexico (fig. 1) in 2002. FGBNMS chose the survey areas, and the USGS chose the MBES. MMS and FGBNMS funded the mapping, and the USGS organized the ship and multibeam systems through a cooperative agreement between the USGS and the University of New Brunswick. The objective of the cruise was to map 12 regions of interest to MMS and the FGBNMS, including Alderdice, Sonnier, Geyer, Bright, Rankin (1 and 2), Jakkula, McNeil, Bouma, McGrail, Rezak, and Sidner Banks.
Biodegradation of hexadecane using sediments from rivers and lagoons of the Southern Gulf of Mexico.
García-Cruz, N Ulises; Sánchez-Avila, Juan I; Valdés-Lozano, David; Gold-Bouchot, Gerardo; Aguirre-Macedo, Leopoldina
2018-03-01
The Southern Gulf of Mexico is an area highly impacted by crude oil extraction, refining activities and the presence of natural petroleum seepage. Oceanic currents in the Gulf of Mexico continually facilitate the transport of hydrocarbons to lagoons and rivers. This research evaluated hexadecane (HXD) degradation in marine sediment samples from lagoons and rivers that are fed by the Southern Gulf of Mexico, specifically six samples from rivers, three samples from lagoons, and one sample from a marine outfall. The highest rates of biodegradation were observed in sediments from the mouths of the Gonzalez River and the Champotón Lagoon. The lowest consumption rate was found in sediment from the mouth of the Coatzacoalcos River. With regards to the Ostión Lagoon and the Grijalva River, there was a low rate of consumption, but a high efficiency of degradation which took place at the end of the experiments. No correlation was found between the consumption rate and the environmental physicochemical parameters. Copyright © 2018 Elsevier Ltd. All rights reserved.
Basin-Wide Temperature Constraints On Gas Hydrate Stability In The Gulf Of Mexico
NASA Astrophysics Data System (ADS)
MacDonald, I. R.; Reagan, M. T.; Guinasso, N. L.; Garcia-Pineda, O. G.
2012-12-01
Gas hydrate deposits commonly occur at the seafloor-water interface on marine margins. They are especially prevalent in the Gulf of Mexico where they are associated with natural oil seeps. The stability of these deposits is potentially challenged by fluctuations in bottom water temperature, on an annual time-scale, and under the long-term influence of climate change. We mapped the locations of natural oil seeps where shallow gas hydrate deposits are known to occur across the entire Gulf of Mexico basin based on a comprehensive review of synthetic aperture radar (SAR) data (~200 images). We prepared a bottom water temperature map based on the archive of CTD casts from the Gulf (~6000 records). Comparing the distribution of gas hydrate deposits with predicted bottom water temperature, we find that a broad area of the upper slope lies above the theoretical stability horizon for structure 1 gas hydrate, while all sites where gas hydrate deposits occur are within the stability horizon for structure 2 gas hydrate. This is consistent with analytical results that structure 2 gas hydrates predominate on the upper slope (Klapp et al., 2010), where bottom water temperatures fluctuate over a 7 to 10 C range (approx. 600 m depth), while pure structure 1 hydrates are found at greater depths (approx. 3000 m). Where higher hydrocarbon gases are available, formation of structure 2 gas hydrate should significantly increase the resistance of shallow gas hydrate deposits to destabilizing effects variable or increasing bottom water temperature. Klapp, S.A., Bohrmann, G., Kuhs, W.F., Murshed, M.M., Pape, T., Klein, H., Techmer, K.S., Heeschen, K.U., and Abegg, F., 2010, Microstructures of structure I and II gas hydrates from the Gulf of Mexico: Marine and Petroleum Geology, v. 27, p. 116-125.Bottom temperature and pressure for Gulf of Mexico gas hydrate outcrops and stability horizons for sI and sII hydrate.
A high-resolution dissolved oxygen mass balance model was developed for the Louisiana coastal shelf in the northern Gulf of Mexico. GoMDOM (Gulf of Mexico Dissolved Oxygen Model) was developed to assist in evaluating the impacts of nutrient loading on hypoxia development and exte...
Predicted effects of climate change on northern Gulf of Mexico hypoxia
U.S. state and federal partners are working cooperatively to develop nutrient management strategies to reduce hypoxia (O2 < 63 mmol m-3) in the northern Gulf of Mexico. Numerical models that represent eutrophication and hypoxia development processes have been an important too...
Code of Federal Regulations, 2010 CFR
2010-07-01
... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Gulf of Mexico and Apalachicola Bay south of Apalachicola, Fla., Drone Recovery Area, Tyndall Air Force Base, Fla. 334.660 Section 334... DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.660 Gulf of Mexico and Apalachicola Bay south of...
Code of Federal Regulations, 2013 CFR
2013-07-01
... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Gulf of Mexico and Apalachicola Bay south of Apalachicola, Fla., Drone Recovery Area, Tyndall Air Force Base, Fla. 334.660 Section 334... DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.660 Gulf of Mexico and Apalachicola Bay south of...
Code of Federal Regulations, 2011 CFR
2011-07-01
... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Gulf of Mexico and Apalachicola Bay south of Apalachicola, Fla., Drone Recovery Area, Tyndall Air Force Base, Fla. 334.660 Section 334... DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.660 Gulf of Mexico and Apalachicola Bay south of...
Code of Federal Regulations, 2012 CFR
2012-07-01
... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Gulf of Mexico and Apalachicola Bay south of Apalachicola, Fla., Drone Recovery Area, Tyndall Air Force Base, Fla. 334.660 Section 334... DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.660 Gulf of Mexico and Apalachicola Bay south of...
Code of Federal Regulations, 2014 CFR
2014-07-01
... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Gulf of Mexico and Apalachicola Bay south of Apalachicola, Fla., Drone Recovery Area, Tyndall Air Force Base, Fla. 334.660 Section 334... DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.660 Gulf of Mexico and Apalachicola Bay south of...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-24
... Western Gulf of Mexico Planning Areas, Oil and Gas Lease Sales for Years 2012-2017 (Sales 229, 227, 233... Register (76 FR 70748) correcting the sale numbers that were identified in the Call. This document... them with: 1. Whole blocks and portions of blocks deferred by the Gulf of Mexico Energy Security Act of...
Astronaut Thomas Stafford during water egress training in Gulf of Mexico
NASA Technical Reports Server (NTRS)
1965-01-01
Astronaut Thomas P. Stafford, Gemini 6 prime crew pilot, climbs out of a boilerplate model of a Gemini spacecraft during water egress training in the Gulf of Mexico. A NASA swimmer in the water nearby assists in the exercise.
Sidorovskaia, Natalia A; Ackleh, Azmy S; Tiemann, Christopher O; Ma, Baoling; Ioup, Juliette W; Ioup, George E
2016-01-01
The Gulf of Mexico is a region densely populated by marine mammals that must adapt to living in a highly active industrial environment. This paper presents a new approach to quantifying the anthropogenic impact on the marine mammal population. The results for sperm and beaked whales of a case study of regional population dynamics trends after the Deepwater Horizon oil spill, derived from passive acoustic-monitoring data gathered before and after the spill in the vicinity of the accident, are presented.
Predicting the Presence of Scyphozoan Jellyfish in the Gulf of Mexico Using a Biophysical Model
NASA Astrophysics Data System (ADS)
Aleksa, K. T.; Nero, R. W.; Wiggert, J. D.; Graham, W. M.
2016-02-01
The study and quantification of jellyfish (cnidarian medusae and ctenophores) is difficult due to their fragile body plan and a composition similar to their environment. The development of a predictive biophysical jellyfish model would be the first of its kind for the Gulf of Mexico and could provide assistance in ecological research and human interactions. In this study, the collection data of two scyphozoan medusae, Chrysaora quinquecirrha and Aurelia spp., were extracted from SEAMAP trawling surveys and were used to determine biophysical predictors for the presence of large jellyfish medusae in the Gulf of Mexico. Both in situ and remote sensing measurements from 2003 to 2013 were obtained. Logistic regressions were then applied to 27 biophysical parameters derived from these data to explore and determine significant predictors for the presence of medusae. Significant predictors identified by this analysis included water temperature, chlorophyll a, turbidity, distance from shore, and salinity. Future application for this model include foraging assessment of gelatinous predators as well as possible near real time monitoring of the distribution and movement of these medusae in the Gulf of Mexico.
30 CFR 250.116 - How do I determine producibility if my well is in the Gulf of Mexico?
Code of Federal Regulations, 2010 CFR
2010-07-01
... 30 Mineral Resources 2 2010-07-01 2010-07-01 false How do I determine producibility if my well is in the Gulf of Mexico? 250.116 Section 250.116 Mineral Resources MINERALS MANAGEMENT SERVICE... Performance Standards § 250.116 How do I determine producibility if my well is in the Gulf of Mexico? If your...
Executive summary - Geologic assessment of coal in the Gulf of Mexico coastal plain, U.S.A.
Warwick, Peter D.; Warwick, Peter D.; Karlsen, Alexander K.; Merrill, Matthew D.; Valentine, Brett J.
2011-01-01
The National Coal Resource Assessment (NCRA) project of the U.S. Geological Survey (USGS) has assessed the quantity and quality of the nation's coal deposits that potentially could be mined during the next few decades. For eight years, geologic, geochemical, and resource information was collected and compiled for the five major coal-producing regions of the United States: the Appalachian Basin, Illinois Basin, Northern Rocky Mountains and Great Plains, Colorado Plateau, and the western part of the Gulf of Mexico Coastal Plain (Gulf Coast) region (Figure 1). In particular, the NCRA assessed resource estimates, compiled coal-quality information, and characterized environmentally sensitive trace elements, such as arsenic and mercury, that are mentioned in the 1990 Clean Air Act Amendments (U.S. Environmental Protection Agency, 1990). The results of the USGS coal assessment efforts may be found at: http://energy.cr.usgs.gov/coal/coal-assessments/index.html and a summary of the results from all assessment areas can be found in Ruppert et al. (2002) and Dennen (2009).Detailed assessments of the major coal-producing areas for the Gulf Coast region along with reviews of the stratigraphy, coal quality, resources, and coalbed methane potential of the Cretaceous, Paleocene, and Eocene coal deposits are presented in this report (Chapters 5-10).
THE MARINE MAMMAL FAUNA OF POTENTIAL OTEC SITES IN THE GULF OF MEXICO AND HAWAII
DOE Office of Scientific and Technical Information (OSTI.GOV)
Payne, S.F.
1979-05-01
Twenty-seven marine mammal species have been recorded for the Gulf of Mexico, including 7 Mysticetes or baleen whales, 17 Odontocetes or toothed whales, 1 Sirenian (manatee), and 1 or 2 Pinnipeds or seals. The most common species in the Gulf is Tursiops truncatus, the bottlenosed dolphin, an inshore species. Offshore, Stenella plagiodon, the spotted dolphin, is fairly common. Most other species are recorded from very few sightings or strandings. None of the endangered species is common in potential OTEC sites in the Gulf of Mexico. Twenty-two marine mammals may occur in Hawaii; 2 Mystecetes, 19 Odonotocetes, and the endemic monkmore » seal. The monk seal (Monachus schauinslandi), an endangered species, lives in the extreme northwestern island chain away from potential OTEC sites. Among the most common cetaceans in Hawaii is the endangered humpback whale (Megaptera novaeangliae). Stenella longirostris, the spinner dolphin; and Tursiops sp., the bottlenosed dolphin are also fairly common. The baleen whales feed on zooplankton during the summer in polar waters, and are migratory, while the toothed whales feed mainly on fish and squid, and are found in temperate or tropical regions year-round. The manatee is vegetarian and the pinnipeds are fish- or squid-eaters. Environmental effects of OTEC which may affect mammals are: toxic effects of biocide release or ammonia spill, biostimulating effects of seawater redistribution, oil spills, or effects of the physical presence of OTEC plants.« less
NASA Astrophysics Data System (ADS)
Kolker, A.; Chu, P. Y.; Taylor, C.; Roberts, B. J.; Renfro, A. A.; Peyronnin, N.; Fitzpatrick, C.
2017-12-01
While it has long been recognized that the Mississippi River is the largest source of freshwater, nutrients and sediments to the Gulf of Mexico, many questions remain unanswered about the impacts of the material on oceanography of the system. Here we report on the results of a regional synthesis study that examined how the Mississippi River and its delta influence the oceanography, ecology and the economy of the Gulf of Mexico. By employing a series of expert-opinion working groups, and using multi-dimensional numerical physical oceanographic models coupled to in-situ environmental data, this project is working to quantify how variability in discharge, meteorological forcings, and seasonal conditions influence the spatial distribution of the Mississippi River plume and its influence. Results collected to date indicate that the dimensions of the river plume are closely coupled to discharge, but in a non-linear fashion, that incorporates fluxes, flow distributions, offshore and meteorological forcings in the context of the local bathymetry. Ongoing research is using these human and numerical tools to help further elucidate the impacts of this river on the biogeochemistry of the region, and the distribution of key macrofauna. Further work by this team is examining how the delta's impacts on the ecology of the region, and the role that the delta plays as both a source of material for key offshore fauna, and a barrier to dispersal. This information is being used to help further the development of a research agenda for the northern Gulf of Mexico that will be useful through the mid-21st century.
This session focuses on the importance of restoring water quality as part of the larger Gulf of Mexico restoration efforts. Water quality has been identified as a significant indicator of water body condition, and Gulf waters have been impacted by increased urban development, agr...
NASA Astrophysics Data System (ADS)
Kinsland, G. L.
2017-12-01
Within the last several years new types of geophysical data of the southern margin of the North American Craton and the Northern Gulf of Mexico Basin (NGoMB) have become available, e.g., results from the USArray experiment, high resolution satellite gravity data of the GoM itself and new heat flow data. These data when combined with previously existing geophysical data (gravity, magnetic and seismic) and shallow structural data offer new insights into the boundaries and sub-regions of the NGoMB. I offer hypotheses for the development of the structures of the buried crust and upper mantle which cause these features. Of particular interest might be my suggestion that the NGoMB might have extended in a southeasterly direction prior to the counter-clockwise rotation of the Yucatan Peninsula which ultimately resulted in the GoM.
Inter-nesting movements and habitat-use of adult female Kemp's ridley turtles in the Gulf of Mexico.
Shaver, Donna J; Hart, Kristen M; Fujisaki, Ikuko; Bucklin, David; Iverson, Autumn R; Rubio, Cynthia; Backof, Thomas F; Burchfield, Patrick M; de Jesus Gonzales Diaz Miron, Raul; Dutton, Peter H; Frey, Amy; Peña, Jaime; Gomez Gamez, Daniel; Martinez, Hector J; Ortiz, Jaime
2017-01-01
Species vulnerability is increased when individuals congregate in restricted areas for breeding; yet, breeding habitats are not well defined for many marine species. Identification and quantification of these breeding habitats are essential to effective conservation. Satellite telemetry and switching state-space modeling (SSM) were used to define inter-nesting habitat of endangered Kemp's ridley turtles (Lepidochelys kempii) in the Gulf of Mexico. Turtles were outfitted with satellite transmitters after nesting at Padre Island National Seashore, Texas, USA, from 1998 through 2013 (n = 60); Rancho Nuevo, Tamaulipas, Mexico, during 2010 and 2011 (n = 11); and Tecolutla, Veracruz, Mexico, during 2012 and 2013 (n = 11). These sites span the range of nearly all nesting by this species. Inter-nesting habitat lies in a narrow band of nearshore western Gulf of Mexico waters in the USA and Mexico, with mean water depth of 14 to 19 m within a mean distance to shore of 6 to 11 km as estimated by 50% kernel density estimate, α-Hull, and minimum convex polygon methodologies. Turtles tracked during the inter-nesting period moved, on average, 17.5 km/day and a mean total distance of 398 km. Mean home ranges occupied were 725 to 2948 km2. Our results indicate that these nearshore western Gulf waters represent critical inter-nesting habitat for this species, where threats such as shrimp trawling and oil and gas platforms also occur. Up to half of all adult female Kemp's ridleys occupy this habitat for weeks to months during each nesting season. Because inter-nesting habitat for this species is concentrated in nearshore waters of the western Gulf of Mexico in both Mexico and the USA, international collaboration is needed to protect this essential habitat and the turtles occurring within it.
Electromagnetic surveying of seafloor mounds in the northern Gulf of Mexico
Ellis, M.; Evans, R.L.; Hutchinson, D.; Hart, P.; Gardner, J.; Hagen, R.
2008-01-01
Seafloor controlled source electromagnetic data, probing the uppermost 30 m of seafloor sediments, have been collected with a towed magnetic dipole-dipole system across two seafloor mounds at approximately 1300 m water depth in the northern Gulf of Mexico. One of these mounds was the focus of??a recent gas hydrate research drilling program. Rather than the highly resistive response expected of massive gas hydrate within the confines of the mounds, the EM data are dominated by the effects of raised temperatures and pore fluid salinities that result in an electrically conductive seafloor. This structure suggests that fluid advection towards the seafloor is taking place beneath both mounds. Similar responses are seen at discrete locations away from the mounds in areas that might be associated with faults, further suggesting substantial shallow fluid circulation. Raised temperatures and salinities may inhibit gas hydrate formation at depth as has been suggested at other similar locations in the Gulf of Mexico.
NASA Technical Reports Server (NTRS)
2002-01-01
This Sea-viewing Wide Field-of-view Sensor (SeaWiFS) image of the Bay of Campeche, acquired January 17, 2001, shows a 300-kilometer long smoke plume streaming towards the northwest from around 19.4o North and 92o West, the location of the Akal oil field. In the lower right (southeast) corner of the image is the country of El Salvador, site of a magnitude 7.6 earthquake on January 13, 2001. On the Pacific side of Southern Mexico, the productive waters of the Gulf of Tehuantepec are visible. Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE
Phytoplankton and sediments in Gulf of Mexico
NASA Technical Reports Server (NTRS)
2002-01-01
Affected both by terrestrial factors like agriculture, deforestation, and erosion, and by marine factors like salinity levels, ocean temperature and water pollution, coastal environments are the dynamic interface between land and sea. In this MODIS image from January 15, 2002, the Gulf of Mexico is awash in a mixture of phytoplankton and sediment. Tan-colored sediment is flowing out into the Gulf from the Mississippi River, whose floodplain cuts a pale, wide swath to the right of center in the image, and also from numerous smaller rivers along the Louisiana coast (center). Mixing with the sediment are the multi-colored blue and green swirls that reveal the presence of large populations of marine plants called phytoplankton. Phytoplankton populations bloom and then fade, and these cycles affect fish and mammals-including humans-higher up the food chain. Certain phytoplankton are toxic to both fish and humans, and coastal health departments must monitor ecosystems carefully, often restricting fishing or harvesting of shellfish until the blooms have subsided.
Improved Hypoxia Modeling for Nutrient Control Decisions in the Gulf of Mexico
NASA Technical Reports Server (NTRS)
Habib, Shahid; Pickering, Ken; Tzortziou, Maria; Maninio, Antonio; Policelli, Fritz; Stehr, Jeff
2011-01-01
The Gulf of Mexico Modeling Framework is a suite of coupled models linking the deposition and transport of sediment and nutrients to subsequent bio-geo chemical processes and the resulting effect on concentrations of dissolved oxygen in the coastal waters of Louisiana and Texas. Here, we examine the potential benefits of using multiple NASA remote sensing data products within this Modeling Framework for increasing the accuracy of the models and their utility for nutrient control decisions in the Gulf of Mexico. Our approach is divided into three components: evaluation and improvement of (a) the precipitation input data (b) atmospheric constituent concentrations in EPA's air quality/deposition model and (c) the calculation of algal biomass, organic carbon and suspended solids within the water quality/eutrophication models of the framework.
76 FR 53416 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-08-26
... Ecosystem Scientific and Statistical Committee (SSC). DATES: The meeting will convene at 8 a.m. Eastern time... CONTACT: Dr. Karen Burns, Ecosystem Management Specialist; Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY INFORMATION: The Ecosystem Scientific and Statistical Committee...
78 FR 79674 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-12-31
... Working Group (Working Group) and Standing and Special Reef Fish Scientific and Statistical Committees..., Senior Fishery Biologist, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630; fax: (813... the individual meeting agendas are as follows: ABC Control Rule Working Group Agenda, Wednesday...
NASA Astrophysics Data System (ADS)
MacDonald, I. R.; Garcia-Pineda, O. G.; Morey, S. L.; Huffer, F.
2011-12-01
Effervescent hydrocarbons rise naturally from hydrocarbon seeps in the Gulf of Mexico and reach the ocean surface. This oil forms thin (~0.1 μm) layers that enhance specular reflectivity and have been widely used to quantify the abundance and distribution of natural seeps using synthetic aperture radar (SAR). An analogous process occurred at a vastly greater scale for oil and gas discharged from BP's Macondo well blowout. SAR data allow direct comparison of the areas of the ocean surface covered by oil from natural sources and the discharge. We used a texture classifying neural network algorithm to quantify the areas of naturally occurring oil-covered water in 176 SAR image collections from the Gulf of Mexico obtained between May 1997 and November 2007, prior to the blowout. Separately we also analyzed 36 SAR images collections obtained between 26 April and 30 July, 2010 while the discharged oil was visible in the Gulf of Mexico. For the naturally occurring oil, we removed pollution events and transient oceanographic effects by including only the reflectance anomalies that that recurred in the same locality over multiple images. We measured the area of oil layers in a grid of 10x10 km cells covering the entire Gulf of Mexico. Floating oil layers were observed in only a fraction of the total Gulf area amounting to 1.22x10^5 km^2. In a bootstrap sample of 2000 replications, the combined average area of these layers was 7.80x10^2 km^2 (sd 86.03). For a regional comparison, we divided the Gulf of Mexico into four quadrates along 90° W longitude, and 25° N latitude. The NE quadrate, where the BP discharge occurred, received on average 7.0% of the total natural seepage in the Gulf of Mexico (5.24 x10^2 km^2, sd 21.99); the NW quadrate received on average 68.0% of this total (5.30 x10^2 km^2, sd 69.67). The BP blowout occurred in the NE quadrate of the Gulf of Mexico; discharged oil that reached the surface drifted over a large area north of 25° N. Performing a
Source and dispersal of silt on northern Gulf of Mexico continental shelf
DOE Office of Scientific and Technical Information (OSTI.GOV)
Peterson, M.; Mazzullo, J.
1988-01-01
The surficial sediment on the continental shelf of the northern Gulf of Mexico is characterized by abundant silty clay which was deposited during the late Pleistocene lowstand and reworked during and after the Holocene transgression. The purposes of this study were to determine the sources of the silt fraction in this surficial sediment by quartz grain roundness and surface texture analysis, and to determine the effects of modern shelf currents upon the distribution of silt. Areal variations in quartz grain roundness and surface texture define six silt provinces on the northern Gulf of Mexico continental shelf. The Mississippi province ismore » the largest province and stretches from the Chandeleur Islands to Matagorda Bay. It is characterized by a mixture of rounded grains that were derived from the sedimentary rocks of the Gulf coastal plain and the Mid-Continent, and angular, fractured grains that were derived from glacial deposits in the northern United States. A comparison of the areal distribution of these six provinces with the late Pleistocene paleogeography of the continental shelf shows evidence for varying degrees of shore-parallel transport of silt by modern shelf currents.« less
Mesoscale air-sea interactions related to tropical and extratropical storms in the Gulf of Mexico
NASA Technical Reports Server (NTRS)
Lewis, James K.; Hsu, S. A.
1992-01-01
Observations of the lower atmosphere of the northwestern Gulf of Mexico from November 1982 to mid-February 1983 were studied in which seven significant cyclones were generated in the northwestern gulf. It was found that all seven storms occurred when the vorticity correlate of the horizontal air temperature difference was about 3-5 C above the climatological mean difference. It is shown that a maximum in the frequency of tropical storms within the Gulf of Mexico exists some 275 km south of the Mississippi delta at 27 deg N, 90 deg W. This maximum is a result of only those storms which originate within the gulf. Two plausible effects of the Loop Current and its rings on tropical storms are discussed. One is that these ocean features are large and consolidated heat and moisture sources from which a nearby slowly moving atmospheric disturbance can extract energy. The second is that of the cyclonic vorticity that can be generated in the lower atmosphere by such oceanographic features.
Hypoxia in the Northern Gulf of Mexico: Assessing the State of the Science
The presentations, panel summaries, agenda sessions transcripts, and papers prepared by session authors for the April 2006 Symposium on Hypoxia in the Northern Gulf of Mexico: Assessing the State of the Science.
What does atmospheric nitrogen contribute to the Gulf of Mexico area of oxygen depletion?
NASA Astrophysics Data System (ADS)
Rabalais, N. N.
2017-12-01
The northern Gulf of Mexico influenced by the freshwater discharge and nutrient loads of the Mississippi River watershed is the location of the world's second largest human-caused area of coastal hypoxia. Over 500 more anthropogenic `dead zones' exist in coastal waters. The point source inputs within the Mississippi River watershed account for about ten per cent of the total nitrogen inputs to the Mississippi River, with the remaining being nonpoint source. Atmospheric nitrogen makes up about sixteen per cent of the nonpoint source input of nitrogen. Most of the NOx is generated within the Ohio River watershed from the burning of fossil fuels. Some remains to be deposited into the same watershed, but the airshed deposits much of the NOx along the U.S. eastern seaboard, including Chesapeake Bay, which also has a hypoxia problem. Most of the volatilized ammonia is produced from fertilizers or manure within the upper Mississippi River watershed, is deposited within a localized airshed, and is not airborne long distances like the NOx. The atmospheric nitrogen input to the coastal waters affected by hypoxia is considered to be minimal. In the last half century, the nitrogen load from the Mississippi River to the Gulf of Mexico has increased 300 percent. During this period, low oxygen bottom-waters have developed in the coastal waters and worsened coincident with the increase in the nitrogen load. The 31-yr average size of the bottom-water hypoxia area in the Gulf of Mexico is 13,800 square kilometers, well over the 5,000 square kilometers goal of the Mississippi River Nutrient/Gulf of Mexico Hypoxia Task Force. Knowing the amounts and sources of excess nutrients to watersheds with adjacent coastal waters experiencing eutrophication and hypoxia is important in the management strategies to reduce those nutrients and improve water quality.
Analysis of bacterial metagenomes from the Southwestern Gulf of Mexico for pathogens detection.
Escobedo-Hinojosa, Wendy; Pardo-López, Liliana
2017-07-31
Little is known about the diversity of bacteria in the Southwestern Gulf of Mexico. The aim of the study illustrated in this perspective was to search for the presence of bacterial pathogens in this ecosystem, using metagenomic data recently generated by the Mexican research group known as the Gulf of Mexico Research Consortium. Several genera of bacteria annotated as pathogens were detected in water and sediment marine samples. As expected, native and ubiquitous pathogenic bacteria genera such as Burkolderia, Halomonas, Pseudomonas, Shewanella and Vibrio were highly represented. Surprisingly, non-native genera of public health concern were also detected, including Borrelia, Ehrlichia, Leptospira, Mycobacterium, Mycoplasma, Salmonella, Staphylococcus, Streptococcus and Treponema. While there are no previous metagenomics studies of this environment, the potential influences of natural, anthropogenic and ecological factors on the diversity of putative pathogenic bacteria found in it are reviewed. The taxonomic annotation herein reported provides a starting point for an improved understanding of bacterial biodiversity in the Southwestern Gulf of Mexico. It also represents a useful tool in public health as it may help identify infectious diseases associated with exposure to marine water and ingestion of fish or shellfish, and thus may be useful in predicting and preventing waterborne disease outbreaks. © FEMS 2017. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
75 FR 80469 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-12-22
... Management Council; telephone: (813) 348-1630 x235. SUPPLEMENTARY INFORMATION: The Vessel Monitoring System (VMS) Advisory Panel will meet to discuss operation, design, usage of vessel monitoring systems, and.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Vessel Monitoring...
Occurrence and amount of microplastic ingested by fishes in watersheds of the Gulf of Mexico.
Phillips, Melissa B; Bonner, Timothy H
2015-11-15
Ingestion of microplastics by fishes could be an emerging environmental crisis because of the proliferation of plastic pollution in aquatic environments. Microplastics in marine ecosystems are well documented, however only one study has reported percent occurrence of microplastics in freshwater fishes. The purpose of this study was to quantify the occurrences and types of microplastics ingested by fishes within several freshwater drainages of the Gulf of Mexico and an estuary of the Gulf of Mexico. Among 535 fishes examined in this study, 8% of the freshwater fishes and 10% of the marine fishes had microplastics in their gut tract. Percentage occurrence of microplastics ingested by fishes in non-urbanized streams (5%) was less than that of one of the urbanized streams (Neches River; 29%). Percent occurrence of microplastics by habitat (i.e., benthic, pelagic) and trophic guilds (herbivore/omnivore, invertivore, carnivore) were similar. Low but widespread occurrences among drainages, habitat guilds, and trophic guilds indicate proliferation of plastic pollution within watersheds of the Gulf of Mexico, but consequences to fish health are unknown at this time. Copyright © 2015 Elsevier Ltd. All rights reserved.
33 CFR 334.720 - Gulf of Mexico, south from Choctawhatchee Bay; Missile test area.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Gulf of Mexico, south from Choctawhatchee Bay; Missile test area. 334.720 Section 334.720 Navigation and Navigable Waters CORPS OF ENGINEERS... Mexico, south from Choctawhatchee Bay; Missile test area. (a) The danger zone. The danger zone shall...
33 CFR 334.720 - Gulf of Mexico, south from Choctawhatchee Bay; Missile test area.
Code of Federal Regulations, 2012 CFR
2012-07-01
... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Gulf of Mexico, south from Choctawhatchee Bay; Missile test area. 334.720 Section 334.720 Navigation and Navigable Waters CORPS OF ENGINEERS... Mexico, south from Choctawhatchee Bay; Missile test area. (a) The danger zone. The danger zone shall...
33 CFR 334.720 - Gulf of Mexico, south from Choctawhatchee Bay; Missile test area.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Gulf of Mexico, south from Choctawhatchee Bay; Missile test area. 334.720 Section 334.720 Navigation and Navigable Waters CORPS OF ENGINEERS... Mexico, south from Choctawhatchee Bay; Missile test area. (a) The danger zone. The danger zone shall...
NASA Technical Reports Server (NTRS)
1981-01-01
This oblique view of the south Persian Gulf region (26.0N, 54.0E) was taken over Iran looking west across the south Persian Gulf into the Trucial Coast of the United Arab Emirates and the prominent Qatar peninsula. Rich in petroleum resources, this region supplies much of the world's oil needs from its many ports and off shore loading facilities.
Diel activity of Gulf of Mexico sturgeon in a northwest Florida bay
Wrege, B.M.; Duncan, M.S.; Isely, J.J.
2011-01-01
In this paper, we assess patterns in activity of Gulf of Mexico sturgeon Acipenser oxyrinchus desotoi over a 24-h period in the Pensacola bay system, Florida. Although seasonal migration of sturgeon is well documented, little information is available pertaining to daily variation in activity. We surgically implanted 58 Gulf sturgeon with acoustic transmitters in the Escambia (n=26), Yellow (n=8), Blackwater (n=12) and Choctawhatchee rivers (n=12) in June, July, September and October 2005. Gulf sturgeon location was monitored using an array of 56 fixed-station acoustic receivers. The relationship between frequency of Gulf sturgeon observations recorded on all acoustic receivers and time of day for all seasons combined indicated a strong diel activity pattern. Gulf sturgeon were frequently detected at night in all seasons with the exception of summer. Consecutive hourly observations indicated lateral movement of Gulf sturgeon between independent acoustic receivers on 15% of all observations of individuals. The use of an acoustic receiver array not only provides continuous data within a defined area, but also provides insight into nocturnal behavior of Gulf sturgeon not previously identified. ?? 2011 Blackwell Verlag, Berlin.
FISHERY RESOURCES AND THREATENED HABITATS IN THE NORTHERN GULF OF MEXICO
Jordan, Steve and Darrin Dantin. 2004. Fishery Resources and Threatened Habitats in the Northern Gulf of Mexico (Abstract). Presented at the Aquatic Stressors All-Investigators Meeting, 9-11 March 2004, Washington, DC. 1 p. (ERL,GB R996).
We have explored relationships be...
76 FR 16385 - Gulf of Mexico Fishery Management Council; Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2011-03-23
... INFORMATION CONTACT: Dr. Stephen Bortone, Executive Director, Gulf of Mexico Fishery Management Council...; Scientific & Statistical Committee Selection; and Reef Fish. 3:45 p.m.-4:15 p.m.--Other Business items will....--Closed Session--The Scientific & Statistical Committees Selection Committee/Full Council will meet to...
Marine and Estuarine Ecology. Man and the Gulf of Mexico.
ERIC Educational Resources Information Center
Irby, Bobby N.; And Others
"Man and the Gulf of Mexico (MGM)" is a marine science curriculum developed to meet the marine science needs of tenth through twelfth grade students in Mississippi and Alabama schools. This MGM unit, which focuses on marine and estuarine ecology, is divided into six sections. The first section contains unit objectives, discussions of the…
SeaWiFS: Mississippi Sediments in the Gulf of Mexico
NASA Technical Reports Server (NTRS)
2002-01-01
This SeaWiFS image collected on January 15, 2002 clearly shows the discharge from the Mississippi River into the Gulf of Mexico. In summertime, much of the sea floor under the brownish colored water goes without dissolved oxygen. Credit: Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE
Processing of the marine magnetic anomalies of the Caribbean region and the Gulf of Mexico (GOM)
NASA Astrophysics Data System (ADS)
Garcia, Andreina; Dyment, Jérôme; Thébault, Erwan
2015-04-01
Marine magnetic anomalies are useful to better understand the structure and age of the seafloor and constrain its nature and formation. In this work, we applied a dedicated processing of the NGDC marine magnetic measurements over the Caribbean region. The number of available surveys amounts to 516 representing 2.612.994 data points between epochs 1958 and 2012. The pre-processing was done by survey. First, data associated to velocities lesser than 5 knots were rejected. Then, the data were corrected for the main internal field using the CM4 model for epochs ranging between 1960 and 2002,5 and the IGRF-11 model outside the time range of the CM4 model. A visual inspection of the anomalies allowed us to identify, to remove evident outliers and to define a priority order for each survey. We evaluated the magnetic heading effect and corrected the data for it although statistics analysis suggested that this correction brings only a marginal improvement. The cross-overs differences were estimated using the x2sys package (Wessel, 2010) and then corrected using a Matlab code. The statistics confirmed the importance of this processing and improved the internal crossovers, with in particular a clear reduction of extreme values. This processing allows us to present a marine magnetic anomaly map of the Caribbean region and the Gulf of Mexico to 0.18 degree spatial resolution and to discuss the magnetic signature of some of the striking structures of the area.
Gemini 11 prime crew during water egress training in Gulf of Mexico
NASA Technical Reports Server (NTRS)
1966-01-01
Gemini 11 prime crew, Astronauts Richard F. Gordon Jr. (left), pilot, and Charles Conrad Jr., command pilot, relax on deck of the NASA Motor Vessel Retriever after suiting up for water egress training in Gulf of Mexico.
NASA Astrophysics Data System (ADS)
Garcia-Reyes, A.; Dyment, J.; Thebault, E.
2016-12-01
Despite of the Caribbean plate and Gulf of Mexico have been widely explored from the last 60 years, there is still no consensus about its nature and age of formation. The imaging of the acoustic basement which can help to better understand the composition of the upper crust, is dependent on seismic reflection and exploratory wells but both of them lack of sufficient penetration. Regarding the magnetic anomalies and possible contribution to decipher the age of the Caribbean seafloor, some authors have reported the lack of an identifiable pattern over the Caribbean Plate (Duncan and Hargraves, 1984, Pindell et al. many publications). Marine tracks widely spaced or with very short coverage, and low amplitude magnetic anomalies constitute a limitation in terms of mapping and interpretation. In this work we present a geophysical interpretation from recently reprocessed marine magnetic data (Garcia et al., 2015), satellite geomagnetic models, and new free-air gravity anomaly derived from altimetry (Sandwell et al., 2014), which is useful to better understand the structure and age of the seafloor and constrain its nature and formation. A marine magnetic anomaly map of the Caribbean region and the Gulf of Mexico to 0.18 degree spatial resolution is showed as resulting from a dedicated processing of the NGDC marine magnetic measurements over the Caribbean region, applied over 516 surveys that were acquired between epochs 1958 and 2012. The corrections applied include the main internal field using a CM4 model for epochs ranging between 1960 and 2002.5 and the IGRF-11 model outside the time range of the CM4 model, removal of outliers, correction by magnetic heading effect, analysis and improvement of the internal and external cross-overs and frequency analysis and separation. This processing allows us to integrate and to interpret the results along with the potential field data mentioned above and open the discussion about the meaning of the magnetic and gravity signatures of
Federal Register 2010, 2011, 2012, 2013, 2014
2011-02-28
... Migratory Pelagic Resources of the Gulf of Mexico and South Atlantic; Closure AGENCY: National Marine...: Temporary rule; closure. SUMMARY: NMFS closes the commercial sector for king mackerel in the Florida east coast subzone. This closure is necessary to protect the Gulf king mackerel resource. DATES: The closure...
NASA Astrophysics Data System (ADS)
Gao, Kun; Chen, Jan-Huey; Harris, Lucas M.; Lin, Shian-Jiann; Xiang, Baoqiang; Zhao, Ming
2017-12-01
The tropical cyclones (TCs) that form over the warm waters in the Gulf of Mexico region pose a major threat to the surrounding coastal communities. Skillful subseasonal prediction of TC activity is important for early preparedness and reducing the TC damage in this region. In this study, we evaluate the performance of a 25 km resolution Geophysical Fluid Dynamics Laboratory (GFDL) High Resolution Atmospheric Model (HiRAM) in simulating the modulation of the TC activity in the Gulf of Mexico and western Caribbean Sea by the intraseasonal oscillation (ISO) based on multiyear retrospective seasonal predictions. We demonstrate that the HiRAM faithfully captures the observed influence of ISO on TC activity over the region of interest, including the formation of tropical storms and (major) hurricanes, as well as the landfalling storms. This is likely because of the realistic representation of the large-scale anomalies associated with boreal summer ISO over Northeast Pacific in HiRAM, especially the enhanced (reduced) moisture throughout the troposphere during the convectively enhanced (suppressed) phase of ISO. The reasonable performance of HiRAM suggests its potential for the subseasonal prediction of regional TC risk.
Overpressure, Low Effective Stress, and Slope Failure in the Ursa Region, Deep-Water Gulf of Mexico
NASA Astrophysics Data System (ADS)
Sawyer, D. E.; Flemings, P. B.
2004-12-01
Slope failures are associated with overpressured pore fluids and low effective stresses in the Quaternary strata of the Ursa Region, deep-water Gulf of Mexico. At Ursa, a permeable turbidite sandstone (the Blue Unit) is overlain by a low-permeability mudstone. Overpressure in the mudstone, measured with a pore pressure penetrometer (piezoprobe), begin within a few meters of the seafloor and extend 250-450 meters down to the Blue Unit. The overpressure ratio (λ *=(Pp-Phydrostatic)\\ (Sv-Phydrostatic), where Sv is the overburden stress, Pp is pore pressure, and Phydrostatic is the hydrostatic pressure) ranges from 0.8 where the overburden is thin to 0.4 where the overburden is thick. Detachment surfaces, mapped with high resolution 3D seismic data, are associated with zones where effective stresses are low. Four subsurface slumps were mapped and are oriented generally northwest-southeast. Slump surface areas are less than 250 km2 and maximum scarp-wall height on the largest slide is ˜120 meters. We interpret that asymmetric loading of the Blue Unit by low-permeable mudstone has driven fluids to where overburden is thin, decreased effective stress, and generated slope instability.
Satellite Animation Shows Nate Become a Hurricane in Gulf of Mexico
2017-10-07
This animation of NOAA's GOES East satellite imagery of Tropical Storm Nate from Oct. 5 at 5:45 a.m. EDT (0945 UTC) to Oct. 7 at 6:00 a.m. EDT (1000 UTC) after Nate strengthened into a hurricane while moving through the Gulf of Mexico.
75 FR 43148 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2010-07-23
...; telephone: (813) 348-1630 x235. SUPPLEMENTARY INFORMATION: The Vessel Monitoring System Advisory Panel will meet to discuss operation, design, agency usage of vessel monitoring systems (VMS), and resulting data.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Vessel Monitoring...
76 FR 26252 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-05-06
... Vessel Monitoring System (VMS) Advisory Panel will meet to discuss operation, design, usage of vessel monitoring systems (VMS), and resulting data from these systems. The Advisory Panel will discuss the current.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Vessel Monitoring...
Hurricane Gladys, Gulf of Mexico as seen from the Apollo 7 spacecraft
NASA Technical Reports Server (NTRS)
1968-01-01
Hurricane Gladys, Gulf of Mexico, as seen from the Apollo 7 spacecraft during its 91st revolution of the earth. Photographed from an altitude of 99 nautical miles, at ground elapsed time of 144 hours and 27 minutes.
Maps showing distribution of the Middle Cretaceous unconformity in the eastern Gulf of Mexico
Massingill, L.M.; Wells, R.H.
1987-01-01
This report emphasizes the salt diapirs, pillows, and ridges in the northeastern Gulf of Mexico because of the profound effect these geologic structures have on the MCU. Salt locations are shown on the isopach of post-MCU sediments (fig. 1). A second map shows pre-middle Cretaceous outcrops terminated by the MCU along the Florida Escarpment, the southeastern Gulf, and the Campeche Escarpment (fig. 2).
On the Coastal Dynamics of Sea Level Rise: A case study in the Northern Gulf of Mexico
NASA Astrophysics Data System (ADS)
Hagen, S. C.
2012-12-01
One of the most prominent aspects of global climate change is sea level rise (SLR). With over half of the U.S. population living within 50 miles of the coast, SLR has the potential to considerably impact both human and ecological habitats. Effects of SLR will be felt along coastal beaches, estuarine waters, barrier islands, submerged aquatic vegetation beds, sand and mud flats, oyster reefs and tidal and freshwater wetlands. The Gulf of Mexico coast sustains a diverse habitat including delta marshes, lower river floodplain forests, and oyster reefs, which provide critical habitats for many commercially important species. How we choose to study these complex processes and the adaptation tools that we develop may determine our ability to sustain the human and ecological habitats. The purpose of this presentation is to examine the dynamic effects of SLR to the coasts and coastal habitats of the Northern Gulf of Mexico and to compare and contrast those results with a simpler bathtub model (static) approach. Dynamic assessments will be presented through integrated models representing wave, tidal, overland, bay and biological processes. The models are applied to regions of the Northern Gulf to simulate hydrodynamic properties including waves, tides, and surge, and to estimate impacts to coastal marshes, wetlands and estuaries. Results strongly indicate the importance of simulating the dynamical processes.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-11-12
... Caribbean Fishery Management Councils, in conjunction with NOAA Fisheries and the Atlantic and Gulf States... are appointed by the Gulf of Mexico, South Atlantic, and Caribbean Fishery Management Councils and...; constituency representatives including fishermen, environmentalists, and non-governmental organizations (NGOs...
Predicted Effects of Climate Change on Northern Gulf of Mexico Hypoxia
We describe the application of a coastal ocean ecosystem model to assess the effect of a future climate scenario of plus (+) 3 °C air temperature and + 10% river discharge on hypoxia (O2 < 63 mmol m−3) in the northern Gulf of Mexico. We applied the model to the Louisiana shelf as...
Physical oceanography of the US Atlantic and eastern Gulf of Mexico. Final report
DOE Office of Scientific and Technical Information (OSTI.GOV)
Milliman, J.D.; Imamura, E.
The report provides a summary of the physical oceanography of the U.S. Atlantic and Eastern Gulf of Mexico and its implication to offshore oil and gas exploration and development. Topics covered in the report include: meteorology and air-sea interactions, circulation on the continental shelf, continental slope and rise circulation, Gulf Stream, Loop Current, deep-western boundary current, surface gravity-wave climatology, offshore engineering implications, implications for resource commercialization, and numerical models of pollutant dispersion.
Inter-nesting movements and habitat-use of adult female Kemp’s ridley turtles in the Gulf of Mexico
Shaver, Donna J.; Hart, Kristen M.; Fujisaki, Ikuko; Bucklin, David N.; Iverson, Autumn; Rubio, Cynthia; Backof, Thomas F.; Burchfield, Patrick M.; Gonzales Diaz Miron, Raul de Jesus; Dutton, Peter H.; Frey, Amy; Peña, Jaime; Gamez, Daniel Gomez; Martinez, Hector J.; Ortiz, Jaime
2017-01-01
Species vulnerability is increased when individuals congregate in restricted areas for breeding; yet, breeding habitats are not well defined for many marine species. Identification and quantification of these breeding habitats are essential to effective conservation. Satellite telemetry and switching state-space modeling (SSM) were used to define inter-nesting habitat of endangered Kemp’s ridley turtles (Lepidochelys kempii) in the Gulf of Mexico. Turtles were outfitted with satellite transmitters after nesting at Padre Island National Seashore, Texas, USA, from 1998 through 2013 (n = 60); Rancho Nuevo, Tamaulipas, Mexico, during 2010 and 2011 (n = 11); and Tecolutla, Veracruz, Mexico, during 2012 and 2013 (n = 11). These sites span the range of nearly all nesting by this species. Inter-nesting habitat lies in a narrow band of nearshore western Gulf of Mexico waters in the USA and Mexico, with mean water depth of 14 to 19 m within a mean distance to shore of 6 to 11 km as estimated by 50% kernel density estimate, α-Hull, and minimum convex polygon methodologies. Turtles tracked during the inter-nesting period moved, on average, 17.5 km/day and a mean total distance of 398 km. Mean home ranges occupied were 725 to 2948 km2. Our results indicate that these nearshore western Gulf waters represent critical inter-nesting habitat for this species, where threats such as shrimp trawling and oil and gas platforms also occur. Up to half of all adult female Kemp’s ridleys occupy this habitat for weeks to months during each nesting season. Because inter-nesting habitat for this species is concentrated in nearshore waters of the western Gulf of Mexico in both Mexico and the USA, international collaboration is needed to protect this essential habitat and the turtles occurring within it.
Inter-nesting movements and habitat-use of adult female Kemp’s ridley turtles in the Gulf of Mexico
Hart, Kristen M.; Fujisaki, Ikuko; Bucklin, David; Iverson, Autumn R.; Rubio, Cynthia; Backof, Thomas F.; Burchfield, Patrick M.; de Jesus Gonzales Diaz Miron, Raul; Dutton, Peter H.; Frey, Amy; Peña, Jaime; Gomez Gamez, Daniel; Martinez, Hector J.; Ortiz, Jaime
2017-01-01
Species vulnerability is increased when individuals congregate in restricted areas for breeding; yet, breeding habitats are not well defined for many marine species. Identification and quantification of these breeding habitats are essential to effective conservation. Satellite telemetry and switching state-space modeling (SSM) were used to define inter-nesting habitat of endangered Kemp’s ridley turtles (Lepidochelys kempii) in the Gulf of Mexico. Turtles were outfitted with satellite transmitters after nesting at Padre Island National Seashore, Texas, USA, from 1998 through 2013 (n = 60); Rancho Nuevo, Tamaulipas, Mexico, during 2010 and 2011 (n = 11); and Tecolutla, Veracruz, Mexico, during 2012 and 2013 (n = 11). These sites span the range of nearly all nesting by this species. Inter-nesting habitat lies in a narrow band of nearshore western Gulf of Mexico waters in the USA and Mexico, with mean water depth of 14 to 19 m within a mean distance to shore of 6 to 11 km as estimated by 50% kernel density estimate, α-Hull, and minimum convex polygon methodologies. Turtles tracked during the inter-nesting period moved, on average, 17.5 km/day and a mean total distance of 398 km. Mean home ranges occupied were 725 to 2948 km2. Our results indicate that these nearshore western Gulf waters represent critical inter-nesting habitat for this species, where threats such as shrimp trawling and oil and gas platforms also occur. Up to half of all adult female Kemp’s ridleys occupy this habitat for weeks to months during each nesting season. Because inter-nesting habitat for this species is concentrated in nearshore waters of the western Gulf of Mexico in both Mexico and the USA, international collaboration is needed to protect this essential habitat and the turtles occurring within it. PMID:28319178
Code of Federal Regulations, 2011 CFR
2011-07-01
... Gulf of Mexico adjacent to Santa Rosa Island, Air Force Proving Ground Command, Eglin Air Force Base... Sound and Gulf of Mexico adjacent to Santa Rosa Island, Air Force Proving Ground Command, Eglin Air..., Headquarters Air Proving Ground Command, Eglin Air Force Base, Florida, and such agencies as he may designate...
77 FR 9897 - Gulf of Mexico Fishery Management Council; Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-02-21
... provide expert guidance to Council staff on two projects being conducted as part of a NOAA Coral Reef Conservation Program grant that address the relationship between trends in coral reef communities and their.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Special Coral Scientific...
Madrid, Eric N.; Armitage, Anna R.; López-Portillo, Jorge
2014-01-01
Over the last several decades, the distribution of the black mangrove Avicennia germinans in the Gulf of Mexico has expanded, in part because it can survive the occasional freeze events and high soil salinities characteristic of the area. Vessel architecture may influence mangrove chilling and salinity tolerance. We surveyed populations of A. germinans throughout the Gulf to determine if vessel architecture was linked to field environmental conditions. We measured vessel density, hydraulically weighted vessel diameter, potential conductance capacity, and maximum tensile fracture stress. At each sampling site we recorded mangrove canopy height and soil salinity, and determined average minimum winter temperature from archived weather records. At a subset of sites, we measured carbon fixation rates using a LI-COR 6400XT Portable Photosynthesis System. Populations of A. germinans from cooler areas (Texas and Louisiana) had narrower vessels, likely reducing the risk of freeze-induced embolisms but also decreasing water conductance capacity. Vessels were also narrower in regions with high soil salinity, including Texas, USA and tidal flats in Veracruz, Mexico. Vessel density did not consistently vary with temperature or soil salinity. In abiotically stressful areas, A. germinans had a safe hydraulic architecture with narrower vessels that may increase local survival. This safe architecture appears to come at a substantial physiological cost in terms of reduction in conductance capacity and carbon fixation potential, likely contributing to lower canopy heights. The current distribution of A. germinans in the Gulf is influenced by the complex interplay between temperature, salinity, and vessel architecture. Given the plasticity of A. germinans vessel characters, it is likely that this mangrove species will be able to adapt to a wide range of potential future environmental conditions, and continue its expansion in the Gulf of Mexico in response to near-term climate change
Madrid, Eric N; Armitage, Anna R; López-Portillo, Jorge
2014-01-01
Over the last several decades, the distribution of the black mangrove Avicennia germinans in the Gulf of Mexico has expanded, in part because it can survive the occasional freeze events and high soil salinities characteristic of the area. Vessel architecture may influence mangrove chilling and salinity tolerance. We surveyed populations of A. germinans throughout the Gulf to determine if vessel architecture was linked to field environmental conditions. We measured vessel density, hydraulically weighted vessel diameter, potential conductance capacity, and maximum tensile fracture stress. At each sampling site we recorded mangrove canopy height and soil salinity, and determined average minimum winter temperature from archived weather records. At a subset of sites, we measured carbon fixation rates using a LI-COR 6400XT Portable Photosynthesis System. Populations of A. germinans from cooler areas (Texas and Louisiana) had narrower vessels, likely reducing the risk of freeze-induced embolisms but also decreasing water conductance capacity. Vessels were also narrower in regions with high soil salinity, including Texas, USA and tidal flats in Veracruz, Mexico. Vessel density did not consistently vary with temperature or soil salinity. In abiotically stressful areas, A. germinans had a safe hydraulic architecture with narrower vessels that may increase local survival. This safe architecture appears to come at a substantial physiological cost in terms of reduction in conductance capacity and carbon fixation potential, likely contributing to lower canopy heights. The current distribution of A. germinans in the Gulf is influenced by the complex interplay between temperature, salinity, and vessel architecture. Given the plasticity of A. germinans vessel characters, it is likely that this mangrove species will be able to adapt to a wide range of potential future environmental conditions, and continue its expansion in the Gulf of Mexico in response to near-term climate change.
Sampling protocol for post-landfall Deepwater Horizon oil release, Gulf of Mexico, 2010
Wilde, F.D.; Skrobialowski, S.C.; Hart, J.S.
2010-01-01
The protocols and procedures described in this report are designed to be used by U.S. Geological Survey (USGS) field teams for the collection of environmental data and samples in coastal areas affected by the 2010 Deepwater Horizon oil spill in the Gulf of Mexico. This sampling protocol focuses specifically on sampling for water, sediments, benthic invertebrates, and microorganisms (ambient bacterial populations) after shoreline arrival of petroleum-associated product on beach, barrier island, and wetland environments of the Gulf of Mexico coastal states. Deployment to sampling sites, site setup, and sample collection in these environments necessitates modifications to standard USGS sampling procedures in order to address the regulatory, logistical, and legal requirements associated with samples collected in oil-impacted coastal areas. This document, therefore, has been written as an addendum to the USGS National Field Manual for the Collection of Water-Quality Data (NFM) (http://pubs.water.usgs.gov/twri9A/), which provides the basis for training personnel in the use of standard USGS sampling protocols. The topics covered in this Gulf of Mexico oil-spill sampling protocol augment NFM protocols for field-deployment preparations, health and safety precautions, sampling and quality-assurance procedures, and decontamination requirements under potentially hazardous environmental conditions. Documentation procedures and maintenance of sample integrity by use of chain-of-custody procedures also are described in this protocol.
NASA Astrophysics Data System (ADS)
Perry, R.; Leung, P.; McCall, W.; Martin, K. M.; Howden, S. D.; Vandermeulen, R. A.; Kim, H. S. S.; Kirkpatrick, B. A.; Watson, S.; Smith, W.
2016-02-01
In 2008, Shell partnered with NOAA to explore opportunities for improving storm predictions in the Gulf of Mexico. Since, the collaboration has grown to include partners from Shell, NOAA National Data Buoy Center and National Center for Environmental Information, National Center for Environmental Prediction, University of Southern Mississippi, and the Gulf of Mexico Coastal Ocean Observing System. The partnership leverages complementary strengths of each collaborator to build a comprehensive and sustainable monitoring and data program to expand observing capacity and protect offshore assets and Gulf communities from storms and hurricanes. The program combines in situ and autonomous platforms with remote sensing and numerical modeling. Here we focus on profiling gliders and the benefits of a public-private partnership model for expanding regional ocean observing capacity. Shallow and deep gliders measure ocean temperature to derive ocean heat content (OHC), along with salinity, dissolved oxygen, fluorescence, and CDOM, in the central and eastern Gulf shelf and offshore. Since 2012, gliders have collected 4500+ vertical profiles and surveyed 5000+ nautical miles. Adaptive sampling and mission coordination with NCEP modelers provides specific datasets to assimilate into EMC's coupled HYCOM-HWRF model and 'connect-the-dots' between well-established Eulerian metocean measurements by obtaining (and validating) data between fixed stations (e.g. platform and buoy ADCPs) . Adaptive sampling combined with remote sensing provides satellite-derived OHC validation and the ability to sample productive coastal waters advected offshore by the Loop Current. Tracking coastal waters with remote sensing provides another verification of estimate Loop Current and eddy boundaries, as well as quantifying productivity and analyzing water quality on the Gulf coast, shelf break and offshore. Incorporating gliders demonstrates their value as tools to better protect offshore oil and gas assets
Code of Federal Regulations, 2010 CFR
2010-07-01
... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Gulf of Mexico, south from... Mexico, south from Choctawhatchee Bay; guided missiles test operations area, Headquarters Air Proving... Mexico south from Choctawhatchee Bay within an area described as follows: Beginning at a point five...
77 FR 28560 - Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic; Amendment 11
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-15
.... 110908576-1029-01] RIN 0648-BB44 Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic; Amendment... regulations to implement Amendment 11 to the Fishery Management Plan for the Spiny Lobster Fishery of the Gulf... Atlantic Fishery Management Councils (Councils). If implemented, this rule would limit spiny lobster...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-06-22
... Migratory Pelagic (CMP) Resources (CMP FMP); and the FMP for the Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic (Spiny Lobster FMP), as prepared and submitted by the South Atlantic and Gulf of...; shrimp; spiny lobster; and snapper-grouper off the southern Atlantic states are managed under their...
NASA Astrophysics Data System (ADS)
Rosenheim, Brad E.; Pendergraft, Matthew A.; Flowers, George C.; Carney, Robert; Sericano, José L.; Amer, Reda M.; Chanton, Jeff; Dincer, Zeynep; Wade, Terry L.
2016-07-01
We have compiled and mapped available carbon isotope data from sedimentary organic material sampled from the Gulf of Mexico prior to 2010. These data provide a baseline to which any changes in the Gulf of Mexico after the 2010 Deepwater Horizon oil spill can be compared. The mean (±1σ) δ13C values, relative to PDB, are -21.4±1.9‰ (entire Gulf of Mexico), -21.7±1.2‰ (shelf sediments), -20.4±1.6‰ (deepwater sediments), and -25.2±4.1‰ (seep-affected sediments). We compare pre-spill mean δ13C values to carbon isotope measurements of sedimentary organic material from coretop samples collected after the 2010 Deepwater Horizon oil spill. The differences between the mean compiled δ13C values and the post-spill δ13C values are corroborated by qualitative relationships with the concentration of polycyclic aromatic hydrocarbons (PAHs), a proxy for oil contamination, in the sediment. The relationships between δ13C of the sedimentary organic material and PAH concentrations allow estimation of background levels of PAHs on the shelf and in the deep Gulf of Mexico. Higher background levels of PAH on the shelf likely relate to Mississippi River outflow and its deposition of petrogenic PAH in riverine sediments.
NASA Astrophysics Data System (ADS)
Redmond, M. C.; Sorgen, A. A.; Chan, E. W.; Kessler, J. D.
2016-12-01
Microbial methane oxidation at natural gas seeps plays an important role in reducing the amount of this greenhouse gas that reaches the atmosphere, but questions remain about the factors that control methane oxidation rates and organisms responsible. We collected water samples from methane seeps on the U.S. Atlantic Margin (Hudson Canyon) and the Gulf of Mexico and tracked aerobic methane oxidation with high resolution measurements of methane, carbon dioxide, and oxygen concentrations, stable isotopic changes in methane and carbon dioxide, trace metals and nutrients in ten replicate mesocosms from each site. At several time points, we collected DNA for 16S rRNA gene and metagenomic sequencing. Hudson Canyon seep mesocosm communities were dominated by methanotrophs from the family Methylococcaceae (>75% of 16S rRNA gene sequences in all samples). Methylococcaceae were also present in the Gulf of Mexico mesocosms, but were much less abundant (<50% of 16S rRNA gene sequences) and methane was consumed less rapidly than in the Hudson Canyon mesocosms. The Hudson Canyon seeps emit only methane, whereas the Gulf of Mexico seeps also emit ethane, propane, and other hydrocarbons. Consistent with this differing geochemistry, hydrocarbon degraders such as Colwellia and Cycloclasticus were also abundant in the Gulf of Mexico mesocosms, as were genes for the oxidation of longer chain alkanes and aromatic compounds.
Poore, R.Z.; DeLong, K.L.; Richey, J.N.; Quinn, T.M.
2009-01-01
A comparison of a Mg/Ca-based sea-surface temperature (SST)-anomaly record from the northern Gulf of Mexico, a calculated index of variability in observed North Atlantic SST known as the Atlantic Multidecadal Oscillation (AMO), and a tree-ring reconstruction of the AMO contain similar patterns of variation over the last 110 years. Thus, the multidecadal variability observed in the instrumental record is present in the tree-ring and Mg/Ca proxy data. Frequency analysis of the Gulf of Mexico SST record and the tree-ring AMO reconstruction from 1550 to 1990 found similar multidecadal-scale periodicities (???30-60 years). This multidecadal periodicity is about half the observed (60-80 years) variability identified in the AMO for the 20th century. The historical records of hurricane landfalls reveal increased landfalls in the Gulf Coast region during time intervals when the AMO index is positive (warmer SST), and decreased landfalls when the AMO index is negative (cooler SST). Thus, we conclude that alternating intervals of high and low hurricane landfall occurrences may continue on multidecadal timescales along the northern Gulf Coast. However, given the short length of the instrumental record, the actual frequency and stability of the AMO are uncertain, and additional AMO proxy records are needed to establish the character of multidecadal-scale SST variability in the North Atlantic. ?? 2009 US Government.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-04-04
... for comments. SUMMARY: NMFS proposes to implement management measures described in a framework action... snapper framework action. Management Measures Contained in This Proposed Rule This rule would set the 2013... Fishery of the Gulf of Mexico; Red Snapper Management Measures AGENCY: National Marine Fisheries Service...
Central portion of Florida, Gulf of Mexico seen from Gemini 11
1966-09-14
S66-54565 (14 Sept. 1966) --- Central portion of Florida, Gulf of Mexico to Atlantic Ocean, Cape Kennedy is at left center of photo, as seen from the Gemini-11 spacecraft during its 29th revolution of Earth. Photo lacks detail due to low sun angle. Sunglint on lakes is visible. Photo credit: NASA
Diversity of Marine Animals. Man and the Gulf of Mexico Series.
ERIC Educational Resources Information Center
Irby, Bobby N., Comp.; And Others
"Man and the Gulf of Mexico" (MGM) is a marine science curriculum series developed to meet the needs of 10th through 12th grade students in Mississippi and Alabama schools. This MGM unit on the diversity of marine animals is divided into 16 sections. These sections focus on: marine protozoans; sponges; coelenterates; ctenophores;…
Regional resource depletion and industry activity: The case of oil and gas in the Gulf of Mexico
Attanasi, E.D.
1986-01-01
Stable and declining oil and gas prices have changed the industry's price expectations and, along with depletion of promising exploration prospects, has resulted in reduced exploration. Even with intensive additional exploration, production in most U.S. areas is expected to decline. What does this imply for the drilling and petroleum industry suppliers in particular regions? How should planners in government and the private sector project and incorporate the consequences of these changes in their strategies? This paper answers these questions for the industry operating in the offshore Gulf of Mexico. Future oil and gas production, as well as demand for offshore drilling and production facilities, are shown to depend on the size distribution of undiscovered fields, their associated production costs, and oil and gas prices. Declining well productivity is a consequence of development of progressively smaller fields so that long-run drilling demand should not decline in proportion to the expected production decline. Calculations show a substantial payoff to the drilling industry, in terms of potential demand increases, if it can develop and implement cost reducing technologies. Implications of these results for other offshore producing areas such as the North Sea are also discussed. ?? 1986.
NASA Technical Reports Server (NTRS)
Nguyen, Myngoc T.; Lapointe, Stephen; Jennings, Brittney; Zoumplis, Angela
2011-01-01
On April 20, 2010, an oil platform belonging to BP exploded and leaked a huge volume of oil into the Gulf of Mexico. In an effort to control the spread of the oil, BP applied dispersants such as Corexit and conducted in-situ burnings of the oil. This catastrophe created a complex chain of events that affected not only the fragile water and land ecosystems, but the humans who breathe the air every day. Thousands of people were exposed to fumes associated with oil vapors from the spill, burning of the oil, and the toxic mixture of dispersants. While aiding in clean-up efforts, local fishermen were directly exposure to fumes when working on the Gulf. A notable amount of Gulf Coast residents were also exposed to the oil fumes as seasonal southeasterly winds blew vapors toward land. The Volatile Organic Compounds (VOC) found in oil vapors include: benzene, toluene, ethyl benzene, xylene, naphthalene, hydrogen sulfide and particulate matter (PM). Increases in water temperature and sunlight due to the summer season allow for these VOCs and PM to evaporate into the air more rapidly. Aside from the VOCs found in oil vapors, the dispersant being used to break up the oil is highly toxic and is thought to be even more toxic than the oil itself (EPA website, 2010). To protect human health, the environment, and to make informed policy decisions relevant to the spill, the EPA Region 6 has continuously monitored the affected areas carefully for levels of pollutants in the outdoor air that are associated with petroleum products and the burning of oil along the coast. In an effort to prevent, prepare for, and respond to future oil spills that occur in and around inland waters of the United States, the EPA has been working with local, state, and federal response partners. Air quality measurements were collected by the EPA at five active monitoring systems stationed along the coast.
NASA Astrophysics Data System (ADS)
Gutierrez, M. A.; Snedden, J.
2017-12-01
Few publications have attempted detailed lithologic calibration of Mass Transport Deposits, usually as a byproduct of mud log descriptions. While the principal motivation for further understanding these slope failure deposits are driven by the economics of deep-water hydrocarbon exploration, the geohazard-related risks of storm-wave loading, and the shallow gas, also provide a driving concern for these deposits. Such risks can be mitigated and prevented by in depth analysis of slope stability and failure. The Mississippi Canyon of the Northern Gulf of Mexico is one of the few basins to contain enough available density of seismic and well data to provide a well-constrained lithologic characterization throughout a MTD-rich continental margin. The proposed hypothesis evaluates: 1) the differences between attached and detached MTDs in the Neogene Northern Gulf of Mexico through seismic characterization and well log analysis, 2) variations of MTD dimensions and map geometries in relation to depositional age throughout the northeastern and northcentral Gulf of Mexico, and 3) the differentiation between sand-prone and shale-prone MTD's in relation to associated depositional mechanisms. This study will attempt lithologic calibration of MTDs in Pleistocene -Miocene strata of the study area through integration of seismic observations (focused in supra-salt basins, which have the highest seismic data quality) and lithologic related information extracted from logs, mud logs (cuttings), and available core data to further constrain the distribution of MTD types, lithology, and geometries. Initial interpretations reflect a variance of seismic character responses to the presence of sandstone and shale (constrained by wells) throughout different regions and salt tectonic domains of the MTD geobodies. Further analysis will relate different seismic facies throughout MTDs to improve the understanding of seismic character and related lithologic facies throughout the deposits, in
Dynamic oceanography determines fine scale foraging behavior of Masked Boobies in the Gulf of Mexico
Harrison, Autumn-Lynn; Vallarino, Adriana; Gerard, Patrick D.; Jodice, Patrick G. R.
2017-01-01
During breeding, foraging marine birds are under biological, geographic, and temporal constraints. These contraints require foraging birds to efficiently process environmental cues derived from physical habitat features that occur at nested spatial scales. Mesoscale oceanography in particular may change rapidly within and between breeding seasons, and findings from well-studied systems that relate oceanography to seabird foraging may transfer poorly to regions with substantially different oceanographic conditions. Our objective was to examine foraging behavior of a pan-tropical seabird, the Masked Booby (Sula dactylatra), in the understudied Caribbean province, a moderately productive region driven by highly dynamic currents and fronts. We tracked 135 individuals with GPS units during May 2013, November 2013, and December 2014 at a regionally important breeding colony in the southern Gulf of Mexico. We measured foraging behavior using characteristics of foraging trips and used area restricted search as a proxy for foraging events. Among individual attributes, nest stage contributed to differences in foraging behavior whereas sex did not. Birds searched for prey at nested hierarchical scales ranging from 200 m—35 km. Large-scale coastal and shelf-slope fronts shifted position between sampling periods and overlapped geographically with overall foraging locations. At small scales (at the prey patch level), the specific relationship between environmental variables and foraging behavior was highly variable among individuals but general patterns emerged. Sea surface height anomaly and velocity of water were the strongest predictors of area restricted search behavior in random forest models, a finding that is consistent with the characterization of the Gulf of Mexico as an energetic system strongly influenced by currents and eddies. Our data may be combined with tracking efforts in the Caribbean province and across tropical regions to advance understanding of seabird
Poli, Caroline L; Harrison, Autumn-Lynn; Vallarino, Adriana; Gerard, Patrick D; Jodice, Patrick G R
2017-01-01
During breeding, foraging marine birds are under biological, geographic, and temporal constraints. These contraints require foraging birds to efficiently process environmental cues derived from physical habitat features that occur at nested spatial scales. Mesoscale oceanography in particular may change rapidly within and between breeding seasons, and findings from well-studied systems that relate oceanography to seabird foraging may transfer poorly to regions with substantially different oceanographic conditions. Our objective was to examine foraging behavior of a pan-tropical seabird, the Masked Booby (Sula dactylatra), in the understudied Caribbean province, a moderately productive region driven by highly dynamic currents and fronts. We tracked 135 individuals with GPS units during May 2013, November 2013, and December 2014 at a regionally important breeding colony in the southern Gulf of Mexico. We measured foraging behavior using characteristics of foraging trips and used area restricted search as a proxy for foraging events. Among individual attributes, nest stage contributed to differences in foraging behavior whereas sex did not. Birds searched for prey at nested hierarchical scales ranging from 200 m-35 km. Large-scale coastal and shelf-slope fronts shifted position between sampling periods and overlapped geographically with overall foraging locations. At small scales (at the prey patch level), the specific relationship between environmental variables and foraging behavior was highly variable among individuals but general patterns emerged. Sea surface height anomaly and velocity of water were the strongest predictors of area restricted search behavior in random forest models, a finding that is consistent with the characterization of the Gulf of Mexico as an energetic system strongly influenced by currents and eddies. Our data may be combined with tracking efforts in the Caribbean province and across tropical regions to advance understanding of seabird
Dynamic oceanography determines fine scale foraging behavior of Masked Boobies in the Gulf of Mexico
Poli, Caroline L.; Harrison, Autumn-Lynn; Vallarino, Adriana; Gerard, Patrick D.; Jodice, Patrick G.R.
2017-01-01
During breeding, foraging marine birds are under biological, geographic, and temporal constraints. These contraints require foraging birds to efficiently process environmental cues derived from physical habitat features that occur at nested spatial scales. Mesoscale oceanography in particular may change rapidly within and between breeding seasons, and findings from well-studied systems that relate oceanography to seabird foraging may transfer poorly to regions with substantially different oceanographic conditions. Our objective was to examine foraging behavior of a pan-tropical seabird, the Masked Booby (Sula dactylatra), in the understudied Caribbean province, a moderately productive region driven by highly dynamic currents and fronts. We tracked 135 individuals with GPS units during May 2013, November 2013, and December 2014 at a regionally important breeding colony in the southern Gulf of Mexico. We measured foraging behavior using characteristics of foraging trips and used area restricted search as a proxy for foraging events. Among individual attributes, nest stage contributed to differences in foraging behavior whereas sex did not. Birds searched for prey at nested hierarchical scales ranging from 200 m—35 km. Large-scale coastal and shelf-slope fronts shifted position between sampling periods and overlapped geographically with overall foraging locations. At small scales (at the prey patch level), the specific relationship between environmental variables and foraging behavior was highly variable among individuals but general patterns emerged. Sea surface height anomaly and velocity of water were the strongest predictors of area restricted search behavior in random forest models, a finding that is consistent with the characterization of the Gulf of Mexico as an energetic system strongly influenced by currents and eddies. Our data may be combined with tracking efforts in the Caribbean province and across tropical regions to advance understanding of seabird
Thomas, Peter; Rahman, Md Saydur; Picha, Matthew E; Tan, Wenxian
2015-12-15
The long-term impacts of recent marked increases in the incidence and extent of hypoxia (dissolved oxygen <2 mg/L) in coastal regions worldwide on fisheries and ecosystems are unknown. Reproductive impairment was investigated in Atlantic croaker collected in 2010 from the extensive coastal hypoxic region in the northern Gulf of Mexico. Potential fecundity was significantly lower in croaker collected throughout the ~20,000 km(2) hypoxic region than in croaker from normoxic sites. In vitro bioassays of gamete viability showed reductions in oocyte maturation and sperm motility in croaker collected from the hypoxic sites in response to reproductive hormones which were accompanied by decreases in gonadal levels of membrane progestin receptor alpha, the receptor regulating these processes. The finding that environmental hypoxia exposure reduces oocyte viability in addition to decreasing oocyte production in croaker suggests that fecundity estimates need to be adjusted to account for the decrease in oocyte maturation. Copyright © 2015 Elsevier Ltd. All rights reserved.
78 FR 57840 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-09-20
...: The Gulf of Mexico Fishery Management Council (Council) will hold a meeting of the ABC Control Working... Avenue, Suite 1100, Tampa, FL 33607. FOR FURTHER INFORMATION CONTACT: Mr. Steven Atran, Senior Fishery... meeting agendas are as follows: ABC Control Rule Working Group Agenda, Tuesday, October 8, 2013, 1 p.m...
DISTRIBUTION OF ORGANIC AND ORGANOMETALLIC COMPOUNDS IN SEDIMENTS FROM THE GULF OF MEXICO
In 1994, over 200 sediment samples were collected in accordance with EPA's Environmental Monitoring and Assessment (EMAP) probabilistic sampling protocol from coastal and estuarine locations in the Louisianian Province (Gulf of Mexico). Organic extracts of homogenized aliquots we...
SEDIMENT HAZARD ASSESSMENT FOR NEAR-COASTAL AREAS OF THE GULF OF MEXICO
Sediment contamination is a major problem in many coastal areas in the U.S. and has emerged as an important ecological issue for several geographic areas. Sediment chemical and biological quality is unknown in many areas of the Gulf of Mexico. To provide some information on this ...
76 FR 80343 - Gulf of Mexico Fishery Management Council; Public Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2011-12-23
... 35 to the Reef Fish Fishery Management Plan and Amendment 11 to the Spiny Lobster Fishery Management... Fish) and Amendment 11 (Spiny Lobster) will be held at nine locations throughout the Gulf of Mexico and... looking at adding trip limits and potentially removing the fixed closed season. Spiny Lobster Amendment 11...
Astronauts Grissom and Young during water egress training in Gulf of Mexico
NASA Technical Reports Server (NTRS)
1965-01-01
A technician adjusts the suit of Astronaut Virgil I. Grissom during water egress training operations in the Gulf of Mexico. Astronaut John W. Young (standing) observes. Grissom and Young are the prime crew for the Gemini-Titan 3 flight scheduled this spring.
Dennen, Kristin O.; Warwick, Peter D.; McDade, Elizabeth Chinn
2010-01-01
The U.S. Geological Survey is currently assessing the oil and natural gas resources of the U.S. Gulf of Mexico region using a total petroleum system approach. An essential part of this geologically based method is evaluating the effectiveness of potential source rocks in the petroleum system. The purpose of this report is to make available to the public RockEval and vitrinite reflectance data from more than 1,900 samples of Mesozoic and Tertiary rock core and coal samples in the Gulf of Mexico area in a format that facilitates inclusion into a geographic information system. These data provide parameters by which the thermal maturity, type, and richness of potential sources of oil and gas in this region can be evaluated.
NASA Astrophysics Data System (ADS)
Schmahl, G. P.
2016-02-01
The Deepwater Horizon oil spill resulted in substantial injury to a variety of mesophotic and deepwater coral habitats in the northern Gulf of Mexico. However, restoration of these ecosystems is difficult due to their depth and lack of proven restoration techniques. In lieu of direct restoration efforts, marine protected areas (MPA's) have the potential to be effectively utilized as a restoration strategy. MPA's can provide benefits to offset injury by preventing predictable future impacts. In this regard, the Flower Garden Banks National Marine Sanctuary (FGBNMS) is undertaking an effort to expand its current boundaries to increase protection of additional reefs, banks and coral communities in the northern Gulf of Mexico. This study will provide a description of the methodology used to identify areas that will be included in the expansion proposal. The East and West Flower Garden Banks contain some of the healthiest coral communities in the continental United States, and are just two of dozens of reefs, banks and other features that parallel the shelf edge off the coast of Texas and Louisiana. In 2012 the FGBNMS released a Management Plan that outlined a proposal to expand the boundaries of the sanctuary. This recommendation resulted from a process that incorporated public input, input from material experts, as well as exploration and characterization activities throughout the region. A range of alternatives were developed based on new and existing biological and mapping information, and encompassing a wide range of biologically and geologically significant sites throughout the region. Designation of additional MPA's will provide significant protection to important mesophotic and deepwater coral communities and assist in restoration efforts in the Gulf of Mexico.
77 FR 7135 - Gulf of Mexico Fishery Management Council (Council); Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2012-02-10
..., Suite 1100, Tampa, FL 33607. FOR FURTHER INFORMATION CONTACT: Dr. Stephen Bortone, Executive Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY INFORMATION: The Ad... approaches to move the Goliath Grouper beyond the moratorium and collect information to support an...
75 FR 14427 - Gulf of Mexico Fishery Management Council (Council); Public Meetings
Federal Register 2010, 2011, 2012, 2013, 2014
2010-03-25
.... Stephen Bortone, Executive Director, Gulf of Mexico Fishery Management Council; telephone: 813- 348-1630... Reef Fish Scientific and Statistical Committee; discuss Options Paper for Amendment 32 Gag/Red Grouper... Statistical Committee Acceptable Biological Catch Control Rule Report; discuss the Options Paper for the...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-29
... Management Act (16 U.S.C. 1801 et seq.), and regulations at 50 CFR 600.745(b) concerning exempted fishing... intended to involve recreational fishermen in the collection of fundamental biological information of Gulf... of Mexico Fishery Management Council (Council). The applicant requires authorization through the EFP...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1993-11-01
This Final Environmental Impact Statement (EIS) covers the proposed 1994 Gulf of Mexico OCS oil and gas lease sales [Central Gulf of Mexico Sale 147 (March 1994) and Western Gulf of Mexico Sale 150 (August 1994)]. This document includes the purpose and background of the proposed actions, the alternatives, the descriptions of the affected environment, and the potential environmental impacts of the proposed actions and alternatives. Proposed mitigating measures and their effects are analyzed, in addition to potential cumulative impacts resulting from proposed activities.
Diversity of Marine Plants. Man and the Gulf of Mexico Series.
ERIC Educational Resources Information Center
Irby, Bobby N., Comp.; And Others
"Man and the Gulf of Mexico" (MGM) is a marine science curriculum series developed to meet the needs of 10th through 12th grade students in Mississippi and Alabama schools. This MGM unit on the diversity of marine plants is divided into 12 sections. The first section introduces the unit by providing objectives and activities on why…
NASA Astrophysics Data System (ADS)
Hode, L. E.; Howden, S. D.; Diercks, A. R.; Cambazoglu, M. K.; Jones, E. B.; Martin, K. M.
2017-12-01
Damage inflicted by tropical storms and hurricanes on coastal communities and industries has become a growing concern in recent decades. Consequently, utilizing products from existing ocean observing platforms, ocean modeling forecasts and satellite data helps to identify the effects of individual storms on the northern Gulf of Mexico. Using data from the jointly-operated United States Geological Survey and Mississippi Department of Marine Resources (USGS-MDMR) hydrological stations, National Oceanic and Atmospheric Administration (NOAA) tide gages, and the Central Gulf of Mexico Ocean Observing System (CenGOOS) high frequency radar (HFR) network, we tracked temperature, salinity, water level and surface current changes in the Mississippi Sound and Bight during June 2017. We performed time series analyses and compared conditions during the buildup and passage of tropical storm Cindy to climatological values as well as to satellite observations and results from a regional application of the Navy Coastal Ocean Model (NCOM). Elevated salinities proceeded Cindy's landfall on June 22, 2017, while anomalously fresh water marked all Mississippi Sound stations afterwards. Onshore surface currents dominated the Mississippi Bight, and current speeds exceeded more than four times the climatological average in the southeastern Bight. Indeed, regions of enhanced current speeds were observed throughout the month of June 2017. Tidal ranges in the Mississippi Sound were on average half a meter higher than predicted, and Shell Beach (Louisiana) and the Bay Waveland Yacht Club (Mississippi) saw extended periods where tides exceeded one meter above predicted values. These results help to quantify the tidal inundation caused by Cindy but also illustrate the massive riverine discharge driven by the storm's precipitation. Model results provide information on areas of the study region not covered by measurements; additionally, comparing observations to model products helps estimate model
Oil and gas of the Maritime Boundry region in the central Gulf of Mexico
DOE Office of Scientific and Technical Information (OSTI.GOV)
Foote, R.Q.; Martin, R.G.; Powers, R.B.
1983-07-01
The U.S. Geological Survey conducted a detailed study in the first half of 1981 of the oil and gas resource potential in the Maritime Boundry region of the central Gulf where jurisdiction over natural resources by adjacent coastal countries has not yet been established. The study focused on factors critical to the generation, migration, and entrapment of hydrocarbons, such as: source beds and thermal maturation, reservoir rocks, structural and stratigraphic traps, and seals and timing of hydrocarbon migration relative to formation of traps. A variety of evidence suggests that favorable conditions exist for the occurrence of crude oil and naturalmore » gas resouces in the Maritime Boundry region. Estimates of the in-place resources (recovery factors were not applied) of crude oil and natural gas range from 2.24 to 21.99 billion bbl and from 5.48 to 44.4 tcf, respectively. The individual assessment areas appear to have the most attractive petroleum potential in the following order: Perdido Foldbelt, Sigsbee Knolls, Abyssal Gulf Basin, Campeche Escarpment, Rio Grande Margin, and Sigsbee Escarpment. (JMT)« less
Lithosphere thickness in the Gulf of California region
NASA Astrophysics Data System (ADS)
Fernández, Alejandra; Pérez-Campos, Xyoli
2017-11-01
The Gulf of California has a long tectonic history. Before the subduction of the Guadalupe and Magdalena plates ceased, extension of the Gulf began to the east, at the Basin and Range province. Later, it was focused west of the Sierra Madre Occidental and the opening of the Gulf started. Currently, the Gulf rifting has different characteristics to the north than to the south. In this study, we analyze the lithosphere thickness in the Gulf of California region by means of P-wave and S-wave receiver functions. We grouped our lithosphere-thickness estimates into five froups: 1) North of the Gulf, with a thin lithosphere ( 50 km) related to the extension observed in the Salton Through region; 2) the northwestern part of Baja California, with a thicker lithosphere ( 80 km), thinning towards the Gulf due to the extension and opening processes ( 65 km); 3) central Baja California, with no converted phase corresponding to the lithosphere-asthenosphere boundary but evidence of the presence of a slab remnant; 4) the southern Baja California peninsula, showing a shallow lithosphere-astenosphere boundary (LAB) (< 55 km) and a lithosphere thinning towards the Gulf; and 5) the eastern Gulf margin with lithosphere thinning towards the south. These groups can be further assembled into three regions: A) The northernmost Gulf, where both margins of the Gulf show a relatively constant lithosphere thickness, consistent with an old basement in Sonora and the presence of the Peninsular Ranges batholith in northern Baja California, thinning up towards the axis of the rift in the northernmost Gulf. B) Central and southern Gulf, where the lithosphere thickness in this region ranges from 40 to 55 km, which is consistent with the presence of a younger crust. C) Central Baja California peninsula, where LAB is not detected; but there is evidence of a slab remnant.
O’Neill, Glynn A.; Hardy, Brannon; Ballengee, Brandon
2016-01-01
Abstract Background The 2010 Gulf of Mexico Oil Spill took place over 180,000 square kilometers during a 12-week period over five years ago; however, this event continues to influence the development and distribution of organisms in and around the region of the disaster. Here we examine fish species that may have been most affected by noting their past distribution in the region of the spill and examining data of known collecting events over the last 10 years (five years prior to the spill, five years post spill). New information We found that more than half of the endemic fish species of the Gulf (45 of 77) PMID:27660530