Reproductive biology of Orechromis niloticus (L.) (Pisces: Cichlidae) in the Nyanza Gulf of Lake Victoria
Fish samples were collected using seine and trawl nets in Nyanza Gulf, Lake Victoria (Kenya) in order to study the reproductive and gonadal patterns of Oreochromis niloticus; samples were collected from June 1998 to February 1999. The variation in relative condition factor and monthly variation in gonad weight showed spawning took place between June and July. Most ripe fish were recovered between November and February, while a slight drop in GSI for males was noted between November and January. External factors triggering reproductive strategy are now being addressed
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| Format: | book_section biblioteca |
| Language: | English |
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Fisheries Data Working Group of the Lake Victoria Fisheries Research Project
1999
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| Subjects: | Fisheries, Biology, Africa, Lake Victoria, Kenya, Nyanza, Nyanza Gulf, condition factor, freshwater fish, gonads, reproductive behaviour, spawning, Oreochromis niloticus, |
| Online Access: | http://hdl.handle.net/1834/21440 |
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| Summary: | Fish samples were collected using seine and trawl nets in Nyanza Gulf, Lake Victoria (Kenya) in order to study the reproductive and gonadal patterns of Oreochromis niloticus; samples were collected from June 1998 to February 1999. The variation in relative condition factor and monthly variation in gonad weight showed spawning took place between June and July. Most ripe fish were recovered between November and February, while a slight drop in GSI for males was noted between November and January. External factors triggering reproductive strategy are now being addressed |
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