Reproductive isolation and the nest sites of Lake Malawi chambo, Oveochvomis (Nyasalapia) spp. |
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| Authors: | G F Turner J Witimani † R L Robinson ‡ A S Grimm T J Pitcher &#; |
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| Institution: | School of Biological Sciences, University of Wales, Bangor, Gwynedd LL57 2UW, U.K.;Cape Maclear Fisheries Station, P.O. Box 27, Monkey Bay, Malawi |
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| Abstract: | The nest sites of chambo, Oreochromis (Nyusalupia) spp. were surveyed in the vicinity of Cape Maclear, Lake Malawi. O. karongae (Trewavas) nested at depths of 0.5 to 28 m, while O. lidole bred at depths greater than 17 m. Nesting areas overlapped between these two species. O. lidole (Trewavas) nests were generally larger than those of O. karongae . Both species bred from September to March. Contrary to previous suggestions, the two chambo species were not reproductively isolated by breeding depth, season, or beach type. |
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| Keywords: | Oreochromis Lake Malawi reproduction nest sites |
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