Histological organization and surface ultrastructure of ovaries of Gudusia chapra during different phases of reproduction (Teleostei: Clupeidae)

Cytological status of ovarian activities in Gudusia chapra (Hamilton, 1822) were studied during different phases of reproduction. An asynchronous development was observed in the ovaries. Variations in the ovary weight and gonadosomatic index (GSI) were also observed. Diameter of oocytes were investigated during growth, maturation and spawning phases. It was further revealed that peak of spawning period was during March to April, with a second spawning time in July.