Zooplankton-fish interactions in the littoral zone of Nyanza Gulf, Lake Victoria.
The distribution, diversity and abundance of littoral zooplankton, and the relationships between zooplankton and juvenile fishes in the littoral zone (Lates niloticus (L.), Oreochromis niloticus (L.) and Rastrineobola argentea (Pellegrin)) are being studied. Copepoda were tha most abundant zooplankton in most samples followed by Rotifera and Cladocera. Cyclopoid copepods were more abundant than calanoids. Rotifera was the most diverse group with 33 species recorded. Lates niloticus shifted from a diet of zooplankton to other food items, mainly insects, Caridina nilotica (Roux)and fish as they grew. Juvenile O. niloticus shifted from a zooplankton diet to one of insects, phytoplankton and plant material as they grew. Rastrineobola argentea fed mainly on cladocerans though copepods were also consumed. Changes in feeding preferences were observed spatially and temporally.
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| Format: | Report Section biblioteca |
| Language: | English |
| Published: |
Lake Victoria Fisheries Research Project
1999
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| Subjects: | Lates niloticus, Oreochromis niloticus, Rastrineobola argentea, Caridina nilotica, |
| Online Access: | http://hdl.handle.net/1834/6939 |
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