Abstract
Indiscriminate use of pesticides including cartriz for getting better result in agriculture, has ultimately affected the aquatic biota in general and fishes in particular. The present investigation is aimed to study the adverse effects in the histological make up and gonado somatic index(GSI) of a fresh water fish, Channa punctatus (Bloch) exposed to sublethal concentration of carbamate pesticide, cartriz for different ovarian cycle. The pesticide produced deleterious changes in the ovarian structure and also caused significant changes in GSI, revealing its toxic nature. Parallelly a central set of experiment was kept for observation without any pesticide. Hence it is suggested to use cartriz within prescribed level, to save the environment
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