Interaction of Zinc, Cadmium, Copper, Endosulphan and Dimethoate Pesticides on Fresh Water Fish Channa Punctatus
Journal Title: International Journal of Zoology and Animal Biology - Year 2018, Vol 1, Issue 3
Abstract
The aim of the present study to find out the interaction of toxicants and pesticides on fresh water fish Channa Punctatus. We know that chemical mixtures are characteristic of life. The nature of the mixtures varies widely according to the specific chemical present and their concentration with in living system, which is controlled within relatively close limits. 90 healthy fishes divided into 6 groups of 15 each were exposed to LC50 of zinc (18.62mg/I), copper (0.56 mg/I), cadmium (11.8 mg/I) Endosulphan (3 m Il) and Dimethoate (14.84 mg/I) with selected combination separately. The sixth group of 15 fishes was kept in metal free water served as control for each experimental group. 75 fishes were divided into 5 groups of 15 fishes each and were exposed to LC50of zinc (18.62 mg/I), copper (0.56 mg/I), cadmium (11.8 mg/I) Endosulphan (3 m/I) and Dimethoate (14.84 mg/I) with selected combination separately. In this study results shows that in combination of cadmium and copper separately with Endosulfan, no mortality of fish was observed, showing antagonistic effect, while the presence of these two metals together with pesticides became very toxic (synergistic). Interaction between metals was also very toxic to fish except zinc+ cadmium combination where toxicity was reduced. Pesticides combination was found more than additive showing 50% mortality with in 42 hr instead of 48 hr, but even up to 96 hr the combination could not cause 100% mortality which suggests less than additive effect. In this study it is recommended that farmer avoid fish culture near to factories and places where pesticides used by farmer.
Authors and Affiliations
Parkash J*
Keywords
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