M. RAMACHANDRA MOHAN
Abstract
The paper deals with the effects of sublethal concentrations of tnalathion on the ovary of Glossogobius giuris. The results reveal that lower dosage of malathion brings about a reduction in the ovarian weight and retard the growth of the pre-vitellogenic oocytes. A higher dosage of malathion on the other hand results in the degeneration of the immature oocytes and rupture of follicular epithelium. The above findings suggest that the histopathological changes in the ovary might be a reflection of the disturbance in the endocrine/hormonal imbalance.