Uptake, distribution, and fate of 203Hg-ethylmercuric chloride in the guppy and the coontail

Fang, Sheng

doi:10.1016/0013-9351(74)90068-1

Cited by 6 publications

(1 citation statement)

References 5 publications

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“…Sensory-motor effects appear related to retention of mercury in the central nervous system (Cassano et al 1969;Bryan et al 1974). Other investigations have shown that the effects of the mercurials are tempered by a number of factors such as the form of mercury which is absorbed and general stress (Amend 1970;Rucker and Amend 1969;Fang 1974;Wobeser 1975a). Further, there is evidence that if mercury compounds such as "Panogen" or "Ceresan" do not quickly cause clinical symptoms or death, the animals return to normal functioning (Suzuki 1969).…”

mentioning

confidence: 99%

Mercury Feeding Schedules: Effects on Accumulation, Retention, and Behavior in Trout

Hartman

1978

Transactions of the American Fisheries Society

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Rainbow trout (Salmo gairdneri) were exposed to 0.5 and 2.0 gg/g doses of ethyl-mercury (ptoluene sulfonanilide) "Ceresan" each day for a full year and 2.5 and 10 gg/g doses delivered every 5th day of feeding during the year. A further study extended dose levels from 5.0 to 25.0 gg/g Ceresan given daily. Exposure to the lower doses of mercury for either feeding schedule led to concentrations of mercury in muscle that were similar (regression slope equaled one) to the average daily index of dose for as long as 6 months of feeding. Assessment of concentration in muscle at 9 months of feeding showed a breakdown of the effect in all groups except the one receiving 0.5 gg/g of Ceresan daily. Both dose level and schedules influenced the concentrations of mercury in muscle. Daily treatment with higher doses, e.g., 5.0 through 25.0 gg/g, led to dose-related concentrations of mercury in muscle but the regression was greater than one. Orders of mercury concentration in a variety of other tissues differed significantly and were generally related to dose. Fish receiving 10.0 gg/g of mercury every 5 days or 5.0 gg/g or greater doses every day in their feed were unable, with few exceptions, to learn to avoid shock when preceded by a signal-light. But beyond performance on the learning task, there was no evidence of impairment of general behavior nor was there any indication of physical debilitation resulting from any treatment. There appeared to be a fairly rapid loss of mercury from selected tissues, although estimates of total body burden of mercury remained high after 6 months of mercury-free feeding. Interest in the clinical and lethal effects of mercurials has led to a number of excellent investigations into the absorption, retention, and distribution of several mercury compounds in humans and experimental animals (Berlin 1963; Brown 1954; Forney and Harger 1950). The results of these studies are similar. General debilitation is associ-

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confidence: 99%

Mercury Feeding Schedules: Effects on Accumulation, Retention, and Behavior in Trout

Hartman

1978

Transactions of the American Fisheries Society

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Mercury Circulation in Aquatic Environment. Part 4: The Cumulation of Inorganic Mercury and Phenylmercury by Fish (Poecilia reticulata (PETERS))

Starý

HavlÍIak

Kratzer

et al. 1981

Acta hydrochim. hydrobiol.

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Suiumury:The uptake of inorganic niercury and plienylmcrcuiy by fish directly from wa,ter a,s veil as sorbed on food and the release of both forms of mercury has been investigated in order t o determine thc cuninlation and re1e:tse constants. The rsdiochernical analysis of different forms of mercury has shown that phenylmercury is rapidly transfornied in fish into inorganic niercury, which is slo~vly transformed into methylmercury.

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Behavior of mercury in biosystems I. Uptake and concentration in food-chain

Prabhu

Hamdy

1977

Bull. Environ. Contam. Toxicol.

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Uptake, distribution, and fate of 203Hg-ethylmercuric chloride in the guppy and the coontail

Cited by 6 publications

References 5 publications

Mercury Feeding Schedules: Effects on Accumulation, Retention, and Behavior in Trout

Mercury Feeding Schedules: Effects on Accumulation, Retention, and Behavior in Trout

Mercury Circulation in Aquatic Environment. Part 4: The Cumulation of Inorganic Mercury and Phenylmercury by Fish (Poecilia reticulata (PETERS))

Behavior of mercury in biosystems I. Uptake and concentration in food-chain

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