Gonadal morphology, histology and spermatogenesis of striped piggy fish, Pomadasys stridens (Forsskal, 1775) (Family: Pomadasyidae) from Karachi coast, Pakistan.

Abstract

A study was conducted on the histological structure, morphology of gonads and spermatogenesis of testes of the striped piggy fish, Pomadasys stridens from Karachi coast of Pakistan. The reproductive biology of grunt fishes, and the Pomadasys stridens in particular, is not well understood with respect to functional morphology and histology of the gonads in relation to sexual maturity. In the course of an investigation of the genetic variability of Pomadasys stridens, differences in morphology were observed between the right and left gonad of male and female fish and the size of the fat body associated with the gonads. Histological examinations were made to determine the relationship between these morphological differences and the reproductive state of the gonads. Findings made from this paper are gonad morphology, histology, and spermatogenesis and relate them to the reproductive biology of this species.