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| Moharram, S.G.; AKEL, E.H.K.H.. |
| Reproductive aspects in addition to condition factor and hepatosomatic index were analyzed for Cichlid: Tilapia zillii collected from the beach-seiners operating in Abu Qir Bay during the period from June 2000 to February 2001. The overall sex ratio (M/F) was 1: 1.05. Length at first sexual maturity was 8.7 cm for females and 9.7 cm for males. Gonadosomatic index revealed that spawning season lasted from June to September with peak in July. Macroscopic examination for the gonads of T. zillii indicated that adult females had 4 stages of gonadal development (matureII; vitellogenic stage III; ripe stage IV and spent V). The maturity stages of males were three (matureII, mature III, and ripe stage). The microscopic features of gonadal sections of both females... |
| Tipo: Journal Contribution |
Palavras-chave: Field study; Reproduction; Condition factor. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/1878 |
