بررسي روند رسيدگي جنسي ماهي بياح نر (Liza abu) در آبهاي استان خوزستان

Study on the reproductive cycle of male (Liza abu) in the water of the Khozestan Province

In this study, 100 samples of this species were investigated during the period from February 2007 to January 2008 in Khozestan Province. After studing morphological and histological characteristics of gonad specimen, they were prepared through histological method. Samples were prepared through usual histological method and studied under light microscope. According to the results, the maturity stages of male Liza abu were separated to six different successive stages. These stages were as follow: stage I, the testes were small in size and contained the spermatogonia which were the only cellular components. In stage II (maturing virgin), the spermatogonia and the primary spermatocytes were visible. In stage III (developing, intensive spermatogenesis was occured and the primary and the secondary spermatocytes were the most visible cells during this stage . In stage IV(developed), cells of all stages of spermatogenesis were observed. In stage V , the testes were filled with sperms. In stage VI, residual spermatozoa and the spermatogonia were visible in the testes.