Importance de certaines caractéristiques biologiques dans la structuration génétique des espèces de poissons: le cas de Ethmalosa fimbriata et Sarotherodon melanotheron
Six populations of Ethmalosa fimbriata and six of Sarotherodon melanotheron have been analysed using enzymatic electrophoresis. The study of gene flow intensity in these two species indicate that: - In Ethmalosa fimbriata, a migratory species with high fecundity and pelagic eggs, there is a high gene flow between populations (3 Nm 83). - In Sarotherodon melanotheron, a sedentary and mouthbrooder species with low fecundity, there is a low gene flow between populations (1 Nm 4).
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| Main Authors: | , , |
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| Other Authors: | |
| Format: | article biblioteca |
| Language: | French |
| Published: |
1993-12
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| Subjects: | Biology, Africa, Ethmalosa fimbriata, Bonga shad, Sarotherodon melanotheron, blackchin tilapia, gene flow, reproduction, |
| Online Access: | http://hdl.handle.net/1834/24481 |
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| Summary: | Six populations of Ethmalosa fimbriata and six of Sarotherodon melanotheron have been analysed using enzymatic electrophoresis. The study of gene flow intensity in these two species indicate that: - In Ethmalosa fimbriata, a migratory species with high fecundity and pelagic eggs, there is a high gene flow between populations (3 Nm 83). - In Sarotherodon melanotheron, a sedentary and mouthbrooder species with low fecundity, there is a low gene flow between populations (1 Nm 4). |
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