Subchronic Toxicity of Ionic Surfactants on Freshwater Fish Labeo rohita (Hamilton)

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Acute and subchronic toxicity of aflatoxin B1 to rohu, Labeo rohita (Hamilton).

Pathological alterations in various organs of rohu (L. rohita) fingerlings following acute (0, 7.50, 11.25 and 13.75 mg/kg body weight) and subchronic (0, 1.25 and 2.50 mg/kg body weight) single i.p. aflatoxin B1 exposure for 10 and 90 days, respectively, were investigated. Mortality (dose-dependent) was marked only during acute toxicosis. The changes observed in various organs were dose and ti...

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Studies on acute toxicity of synthetic pyrethroid -cyhalothrin on freshwater fish Labeo rohita

Aim : To study the acute toxicity of λ-cyhalothrin in freshwater fish Labeo rohita by determining the 96 hours lethal concentration 50 (96 hrs LC ) and behavioural patterns of exposed fish. 50 Materials and Methods: A total 270 fingerling size fish were used to determine the 96 hours lethal concentration 50 (96 hrs LC ) of λ-cyhalothrin as per the guideline of Organization for Economic Co-opera...

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Behaviour and Respiratory Dysfunction as an Index of Malathion Toxicity in the Freshwater Fish, Labeo rohita (Hamilton)

The pollution of rivers and streams with chemical contaminants has become one of the most critical environmental problems of the century. As a result of the pollutants transport from industrial areas into the environment and their chemical persistence, many freshwater ecosystems are faced with spatially or temporally alarming high levels of xenobiotic chemicals (Brack et al., 2002; Diez et al.,...

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A Study on the Toxicity of Chromium on the Histology of Gill and Liver of Freshwater Fish Labeo Rohita

The toxic effect of chromium on the histology of gill and liver of Labeo rohita fingerlings was studied. The fingerlings were exposed for 10, 20 and 30 days in 10% sublethal concentration of 96 h LC50 of chromium (3.5 ppm). The gills exposed to sublethal concentration of chromium showed mild histological alterations during 10 days of exposure. However after 30 days, fusion of gill lamellae, hyp...

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ژورنال

عنوان ژورنال: Asian Fisheries Science

سال: 2010

ISSN: 0116-6514,2073-3720

DOI: 10.33997/j.afs.2009.22.4.008