NDLI: Analysis of Arsenic Bioaccumulation in Different Organs of the Nutritionally Important Catfish, Clarias batrachus (L.) Exposed to the Trivalent Arsenic Salt, Sodium Arsenite

Content Provider	Springer Nature Link
Author	Kumar, Randhir Banerjee, Tarun Kumar
Copyright Year	2012
Abstract	Pattern of arsenic bioaccumulation in six organ systems (blood, brain, gills, liver, muscles and skin) of Clarias batrachus was analysed following exposure to sublethal (1 mg L−1; 5 % of 96 h LC50 value) concentration of sodium arsenite. After 60 days of treatment the liver accumulated highest concentration (9.711 ± 0.138 μg g−1 dry wt of tissue.) of arsenic followed by gills (6.156 ± 0.154) > blood (6.070 ± 0.043) > muscles (5.756 ± 0.123) > skin (5.606 ± 0.140) > brain (2.350 ± 0.205). The bioaccumulations of arsenic in all the tissues were time dependant and increased with exposure period. Although the exposed fish loaded with arsenic did not die after prolonged treatment (60 days), the amount of arsenic accumulated made them unsuitable for human consumption. Due to depletion of the proteineous components of their muscles, the body mass of the exposed fish decreased without corresponding decrease in their length. This made the fish lean and thin. These proteineous moieties of the muscles and other tissue systems of the stressed fish were mobilized for breakdown to generate additional requirement of energy to combat the arsenic toxicity.
Starting Page	445
Ending Page	449
Page Count	5
File Format	PDF
ISSN	00074861
Journal	Bulletin of Environmental Contamination and Toxicology
Volume Number	89
Issue Number	3
e-ISSN	14320800
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-07-06
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Arsenic bioaccumulation Clarias batrachus Sodium arsenite Toxicity Environmental Health Pollution Environmental Chemistry Soil Science & Conservation Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Ecotoxicology
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Pollution Medicine Toxicology

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