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Impact of chromium vi on catfish wallago attu


Impact of chromium vi on catfish wallago attu



Indian Journal of Environmental Health 33(3): 336-340



ISSN/ISBN: 0367-827x

Behavioural responses, feeding pattern and survival of the catfish Wallago attu exposed to different levels of chromium (VI) were studied. Maximum allowable toxicant concentration (MATC) and no adverse effect level' (NAEL) to chromium (VI) were determined with the help of computer-aided long-term impact studies. Chromium induced severe ulceration in the skin of the lower jaw and also altered the normal patterns of swimming, feeding and survival compared to the fish in controls. Comparisons between body weights and median lethal concentrations of chromium with respect to aquatic organisms revealed that W. attu has abnormally high resistance to mortality from chromium (VI) exposures.

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Accession: 007432514

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