Studies on the effects of marine and estuarine pollution are reviewed. Pollutants discussed include trace metals, oils, hydrocarbons, and viruses. Subjects include biological waste treatment, biological accumulation, marine disposal, biological effects, and bioassays.

geomagnetic polarity reversals has since been accumulated (21). These catastrophic biological events during field reversal may represent a direct effect of ...

(2007) Ecology and Evolutionary Biology - Iowa State University Dissertation Title: Litter accumulation in emergent marshes: investigating the effects of litter on wetland...

... 8.20 8:45 Speakers: I,±Lo, University of Alberta The effects of intracellular pH on stimulated cyclic nucleotides accumulation and melatonin ...

Cadmium was continuously input to aquatic microcosm channels resulting in concentrations of 5 and 10 micrograms Cd/l. Cadmium accumulation into both biotic and abiotic components was determined. Biological effects of cadmium were determined by monitoring ...

Cadmium was continuously input to aquatic microcosm channels resulting in concentrations of 5 and 10 micrograms Cd/l. Cadmium accumulation into both biotic and abiotic components was determined. Biological effects of cadmium were determined by monitoring structural and functional...

A resume is presented of each class in a course on the biological effects of nuclear radiations. The topics discussed include the physical and chemical bases of radiation effects, primary and secondary processes, accumulated effects, biochemical and cellular effects, ...

Catfish, exposed to cadmium in ambient water, accumulated cadmium in the kidney and liver, with the kidney accumulating more of the higher concentration of cadmium. In 40 percent of the brains no cadmium was detected, and only trace amounts detected in the others. Although the amount of cadmium accumulated in the kidney and liver ...

We studied the pattern of selenium accumulation in Lycopersicum esculentum Mill plants in conditions of root and extra-root dressing with selenium. At the background of general trend towards predominant selenium accumulation in the fruit coat, a higher level of the microelement accumulation in the pulp was observed for selenates (Se+6) ...

The soil mediates both terrestrial and aquatic effects of sulphur and nitrogen deposition in a number of ways. Atmospherically deposited S in excess of biological requirements often accumulates by SO4(-2) adsorption onto Fe and Al oxides in highly weathered soils, causing the rel...

Accumulation, transport and toxicity of Cu in the food chain consisting of Platymonas subcordiformis, Brachionus plicatilis and Penaeus monodon were studied. Effects of Cu on the growth of organisms in the food chain were investigated and the inhibiting effect concentration (EC50) of Cu was then determined according to the dynamics of ...

The widespread use of plastic bags in routine blood bank procedures has raised concern about the accumulation of substances from the plastic containers in the blood products and the biologic effects of these substances. Most poly(vinyl chloride) plastic b...

... the accumulation and application of knowledge is the education of future ... graduate students in various biological and environmental sciences. The ... ...

... Effect of wrack accumulation on salt marsh vegetation, Baruch Institute, Georgetown County, South Carolina. In: Brebbia, C. ... eds.). The Laguna Madre of Texas and Tamaulipas. College Station, Texas: Tex...

The wide-spread use of polychlorinated biphenyls (PCBs) and/or polynuclear aromatic hydrocarbons (PAH) in pesticides and industrial reagents has caused a significant accumulation of these compounds in the aquatic ecosystems. Fish contaminated with these c...

This document summarizes the current knowledge of the effects of exposure to the chlorinated benzenes on human health. The chlorinated benzenes are resistant to chemical and biological degradation and tend to accumulate in lipid-containing tissues of anim...

This document summarizes the current knowledge of the effects of exposure to the chlorinated benzenes on human health. The chlorinated benzenes are resistant to chemical and biological degradation and tend to accumulate in lipid-containing tissues of animals and humans. The ubiqu...

Fucus vesiculosus has been used as an indicator for the occurrence of radionuclides in the marine environment. A prerequisite in using biological organisms as indicators is that the autecology of the organisms in question be well known. Growth, reproducti...

Cellular damage and repair are discussed with regard to inactivation models, dose-effect curves and cancer research, repair relative to damage accumulation, potentially lethal damage, repair of potentially lethal vs. sublethal damage, cell killing and DNA...

Research was conducted in collaboration with fishery biologists at the Chesapeake Biological Laboratory in Solomons, Maryland. This partnership has been maintained to the present, and the body of accumulated knowledge has been a basis for consultation and...

The effects of biofilm growth and methane gas accumulation on the transport in porous media were investigated in an anaerobic two-dimensional sand-filled cell. Inoculation of the lower portion of the cell with a methanogenic culture and addition of methanol to the bottom of the cell led to biomass growth and formation of a gas phase. Gas generated at the ...

A study was carried out of the mechanisms of biological clogging of sand during prolonged percolation of water containing high levels of organic matter. It was found that polysaccharide-producing microorganisms predominated in clogged layers of sand. A positive correlation was observed between accumulation in the profile of polysaccharides and clogging of ...

An interdisciplinary approach to identifying chemical pollution in the marine environment and assessing the effects of such pollution on living marine resources is described. Such a study requires knowing: what pollutants organisms are exposed to, which pollutants are accumulated; the fate of pollutants taken up by organisms, and ...

The industrial use of nanoparticles is rapidly increasing, and this has given rise to concerns about potential biological impacts of engineered particles released into the environment. So far, relatively little is known about uptake, accumulation and responses to engineered nanoparticles by plants. In this study, the effects of alumina ...

Polybrominated diphenyl ethers (PBDEs) are widely used as flame-retardants, are now recognized as a globally distributed pollutants, and are detected in most environmental and biological samples, including human blood, adipose tissue, and breast milk. Due to their wide use in com...

... the accumulation and structuring of knowledge on fish biology and ecology over the more than 10 years ... ...

The main objective of the study was an investigation of the phenomena of biological extraction and accumulation in streams in terms of its influence on river self-purification, particularly as it related to oxygen balance.

The vanadium is a metal that presents great interest from the toxicological point of view, because of the numerous alterations that can take place in different biological systems. This work evaluated the capacity of vanadium accumulation and its correlation with genotoxic effects in root cells of Allium cepa L. The bulbs were ...

Modern electron circular accelerators and accumulators are sources of intensive beams of synchrotron radiation (SR). The wide range of wavelengths emitted by electrons per cycle operation of the accelerator, the high degree of polarization (98%), high instantaneous intensities of photon flux in a narrow range of energy and negligible divergence of the beam (10/sup 4/ rad) make ...

Biological accumulation of nickel and concomitant ecophysiological responses were studied in the leaves of Elodea canadensis treated with different concentrations of Ni (1-50 microM) for 5d. In low concentrations nickel was accumulated mainly in the soluble protein fraction, which correlated with its highest observed ...