Journal ArticleDOI
Distribution of metals in tissues of beaver, raccoon and otter from Ontario, Canada.
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Mercury and selenium concentrations were positively correlated in liver tissue of beaver, raccoon and otter from an undisturbed watershed in south central Ontario, indicating a protective mechanism against methylmercury toxicity to animals exposed to high mercury levels in their diet.About:
This article is published in Science of The Total Environment.The article was published on 1984-03-01. It has received 57 citations till now. The article focuses on the topics: Otter & Beaver.read more
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The chronic toxicity of aluminium, cadmium, mercury, and lead in birds: a review.
TL;DR: It is concluded that significant physiological and biochemical responses to such exposure conditions occur at dietary metal concentrations insufficient to cause signs of overt toxicity, particularly important are reproductive effects which include decreased egg production, decreased hatchability, and increased hatchling mortality.
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Copper Hazards to Fish, Wildlife, and Invertebrates : A Synoptic Review
TL;DR: Ecological and toxicological aspects of silver (Ag) and silver salts in the environment are briefly summarized with an emphasis on natural resources.
Journal ArticleDOI
Effects of acidification on the availability of toxic metals and calcium to wild birds and mammals.
TL;DR: The effects of acidification on wildlife inhabiting aquatic or semi-aquatic environments are reviewed, with particular reference to the possibility for increased dietary exposure to Hg, Cd, Pb and/or Al, and decreased availability of essential dietary minerals such as Ca.
Book
Selenium Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
TL;DR: A review of the environmental and toxicological aspects of selenium in the environment is presented in this paper, including its chemistry, background residues in biological and other materials, and toxic, sub-lethal, and latent effects (including the effects of Se deficiency).
References
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Journal ArticleDOI
Selenium: Relation to Decreased Toxicity of Methylmercury Added to Diets Containing Tuna
Howard E. Ganther,C. Goudie,M. L. Sunde,M. J. Kopecky,P. A. Wagner,Sang-Hwan Oh,William G. Hoekstra +6 more
TL;DR: Japanese quail given 20 parts per million of mercury as methylmercury in diets containing 17 percent tuna survived longer than quails given this concentration of methylmerCury in a corn-soya diet.
Journal ArticleDOI
Mercury and selenium in marine mammals and birds.
TL;DR: The results indicate that the fate of methylmercury in fish-eating marine birds differs fundamentally from that in marine mammals, and it is suggested that marine mammals are able to detoxify methylcury by a specific chemical mechanism in which selenium is involved.
Journal ArticleDOI
Effects of Acidification on Mobilization of Heavy Metals and Radionuclides from the Sediments of a Freshwater Lake
TL;DR: In this article, large diameter enclosures were sealed to the sediments in 2.5m of water in Lake 223 and two tubes were held at control pH (6.7-6.8), one was lowered to pH 5.7 and one to pH5.1, using H2SO4.
Journal ArticleDOI
Food chain relationships of copper and cadmium in contaminated grassland ecosystems
B. A. Hunter,M. S. Johnson +1 more
TL;DR: No body retention control mechanisms were evident in mammals or invertebrates in respect of cadmium, a non-essential trace element whose distribution is characterised by preferential accumulation in the liver and kidney target organs of mammals, and by food chain concentration through predator-prey relationships.