Acute effects of cadmium onIctalurus punctatus (catfish)

Smith, Bianca; Hejtmancik, E.; Camp, Bennie J.

doi:10.1007/bf01812635

Cited by 38 publications

(8 citation statements)

References 8 publications

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“…Therefore, a knowledge of the sublethal and chronic effects of cadmium is needed to formulate acceptable limits of environmental contamination. However, the mechanisms of cadmium poisoning in teleosts remain unclear, since several investigations have failed to demonstrate a significant alteration of most biochemical parameters after pollutant exposure (Smith et al, 1976;Dawson et al, 1977;Schreck & Lorz, 1978;Roberts et al, 1979).…”

Section: Introductionmentioning

confidence: 99%

Ascorbic acid status of mullet, Mugil cephalus Linn., exposed to cadmium

Thomas¹,

Bally

Neff

1982

Journal of Fish Biology

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The effects of acute and chronic cadmium exposures on ascorbic acid concentrations and cadmium accumulation in the tissues of juvenile mullet, Mugil cephalus, are described. Hepatic ascorbic acid reserves were maintained in untreated mullet fed a diet containing ascorbate, but decreased 60% in individuals exposed to 10 mg Cd I-' for six weeks. Ascorbic acid depletion was accompanied by a massive accumulation of cadmium in the liver. Similar changes were found in gill tissue. In contrast, ascorbic acid concentrations were largely unaffected in kidney tissue which had a limited capacity to accumulate the metal. There were marked fluctuations of ascorbic acid levels in the brain. Only small amounts of cadmium were accumulated by this tissue. These results indicate that in mullet liver, gill and brain ascorbic acid stores may be depleted during chronic cadmium poisoning.

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Section: Introductionmentioning

confidence: 99%

Ascorbic acid status of mullet, Mugil cephalus Linn., exposed to cadmium

Thomas¹,

Bally

Neff

1982

Journal of Fish Biology

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“…Chronic sublethal exposure of brook trout to 1 ppb cadmium for 93 d revealed that erythrocytes had the same cadmium concentrations as gill tissue (Sangalang and Freeman, 1979). Exposure of catfish (fctalurus punctatus) to 800 ppb cadmium for 3 wk, however, did not produce significant differences in hematological parameters (Smith et al, 1976). Characterization of the hematologic response was not done in these studies, so that pathogenesis of cadmium-mediated lesions on the fish hemic-lymphatic system in undetermined.…”

Section: Discussionmentioning

confidence: 92%

“…Most studies have focused upon determination of lethal concentration in various species and how that concentration is affected by water quality (Ball, 1967;Chapman, 1978;Chapman and Stevens, 1978;Eaton, 1973;Eisler, 1971;Pickering and Gast, 1972;Solbe and Flook, 1975). Other studies have determined the uptake, tissue distribution, and accumulation of cadmium in fishes (Clearley and Coleman, 1974;Eaton, 1973;Eisler, 1971;Hawkins et al, 1980;Rowe and Massaro, 1974;Sangalang and Freeman, 1979;Smith et al, 1976). These studies have shown that cadmium is quite toxic to many species of fishes when exposed in high concentrations.…”

Section: Introductionmentioning

confidence: 97%

Pathology of lethal and sublethal exposure of fathead minnows,pimephales promelas, to cadmium: A model for aquatic toxicity assessment

Stromberg¹,

Ferrante²,

Carter³

1983

Journal of Toxicology and Environmental Health

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Seventy-six fathead minnows were exposed to 12 ppm cadmium for 96-h and examined histologically at 1-wk intervals for 30 d. Thirteen fish (17.1%) died during the exposure period. Lesions associated with acute cadmium toxicity were epithelial necrosis of the skin, oral cavity, gills, olfactory organs, kidney, urinary bladder, ureters, gastrointestinal tract, and hemopoietic organ. The lesions were most severe in fish which died. Survivors had similar but less severe and less extensive lesions. Residual minimal to mild multifocal necrosis was observed In gastrointestinal, branchial epithelium and and hemopoietic tissue up to 29 d postexposure. Radiotracer studies in 50 fish using 115 Cd demonstrated a rapid uptake and two phase elimination of cadmium by the fish. Rapid elimination of cadmium occurred within 7 wk and was correlated with lesions in the urinary epithelium. Slow phase elimination occurred for at least 3 wk and was correlated with persistant minimal necrosis in several tissues.

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“…Nos observations sur l'accumulation du Cd dans les differents tissus rejoignent et confirment celles de plusieurs travaux anterieurs, et particulierement de Merlini et al (1971 a, b) sur la meme espece, Eaton (1974) sur Lepomis macrochirus et Smith et al . Nos observations sur l'accumulation du Cd dans les differents tissus rejoignent et confirment celles de plusieurs travaux anterieurs, et particulierement de Merlini et al (1971 a, b) sur la meme espece, Eaton (1974) sur Lepomis macrochirus et Smith et al .…”

Section: Discussionunclassified

L'influence du cadmium sur l'activite de la phosphatase alcaline dans divers tissus de Lepomis gibbosus L. (Pisces; Centrarchidae)

Piavaux¹

1977

Hydrobiologia

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Acute effects of cadmium onIctalurus punctatus (catfish)

Cited by 38 publications

References 8 publications

Ascorbic acid status of mullet, Mugil cephalus Linn., exposed to cadmium

Ascorbic acid status of mullet, Mugil cephalus Linn., exposed to cadmium

Pathology of lethal and sublethal exposure of fathead minnows,pimephales promelas, to cadmium: A model for aquatic toxicity assessment

L'influence du cadmium sur l'activite de la phosphatase alcaline dans divers tissus de Lepomis gibbosus L. (Pisces; Centrarchidae)

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