TITLE

Evaluation of the acute toxicity of the seeds of Anamirta cocculus (Linn.) and its piscicidal effect on three species of freshwater fish

AUTHOR(S)
Jothivel, N.; Paul, V. I.
PUB. DATE
July 2008
SOURCE
Internet Journal of Toxicology;2008, Vol. 5 Issue 1, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Seeds of the Indian fish berry Anamirta cocculus (Linn.) are a potential piscicidal agent used for catching fish from the wild by native people. In the present study, laboratory evaluation of the acute toxicity of the seeds of A. cocculus was done at various time intervals on three species of freshwater predatory fishes viz., Clarias batrachus (Linn.), Channa striatus (Bloch.) and Mystus vitattus (Bloch.). The piscicidal agent was administered as a stomach poison in two different modes viz., after deep-frying and without heating. The LC50(s) and LC99(s) at different durations were calculated in both the modes of administration on all the three species tested. For C. batrachus, the LC50(s) at 1, 2, 24, 48, 72 and 96 hours (h) of piscicidal administration in the heated mode was 203.8463, 170.5797, 137.785, 100.5709, 85.4432 and 62.7660 mg/kg body weight and in the without heated mode 167.2705, 101.2334, 68.4538, 63.9773, 51.6782 and 50.2421 mg/kg body weight respectively. For C. striatus, the LC50(s) at 1, 2, 24, 48, 72 and 96 h in the heated mode was 109.2334, 77.4538, 57.9773, 44.2705, 34.6782 and 24.2421 mg/kg body weight and in the without heated mode 90.7660, 55.4433, 34.5709, 28.7685, 20.5798 and 15.3158 mg/kg body weight respectively. For M. vitattus the LC50(s) at the corresponding durations in the heated mode was 32.2706, 22.4433, 19.7686, 15.2883, 7.2517 and 3.4484 mg/kg body weight and in the without heated mode 26.8463, 17.2705, 10.0193, 7.9773, 4.9850 and 1.9082 mg/kg body weight respectively. LC99(s) in both the modes of administration in the respective exposure periods for all the three species tested were also calculated. The results reveals that of all the species tested, C. batrachus is the most resistant one towards the toxicity of A. cocculus followed by C. striatus and M. vitattus. The present study has also shown that these seeds may be used as a potent aquaculture management tool to eradicate unwanted wild fish from culture ponds before stocking.
ACCESSION #
61305431

 

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