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| Jembe, B.T.; Boera, P.N.; Okeyo Owuor, J.B.. |
| The Lake Victoria Catchment (Kenya) harbours six species of tilapia. Two species Oreochromis variabilis (L) and Oreochromis esculentus (L) are endemic while four species Oreochromis niloticus, Oreochromis leucostictus, Tilapia zillii(Gervais) and Tilapia rendalli(Gervais) were variously introduced in 1950s and early 1960s. The existence of six tilapia species in the same geographical range has had significant ecological and economical implications. The study investigated the ecological impacts by determining species diversity, distribution, association (allopatric, sympatric and parapatric) and habitat preferences for the six-tilapia species. Shannon-wiener index was used to determine diversity, while species distribution was evaluated on the basis of 39... |
| Tipo: Proceedings Paper |
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| Ano: 2006 |
URL: http://hdl.handle.net/1834/2324 |
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