Morphometric and allozyme variation in natural populations and cultured strains of nile tilapia Oreochromis niloticus (Teleostei, Cichlidae)

Publication Type:Journal Article
Year of Publication:1998
Authors:E. J. Vreven, Adépo-Gourène, B. , Agnèse, J. - F. , Teugels, G. G.
Journal:Belgian Journal of Zoology
Volume:128
Pagination:23-34
Date Published:1998///
Keywords:Africa, cichlidae, Cultured stocks, Enzymes, Morphometry, Oreochromis niloticus, Tilapiini, Wild populations
Abstract:

Morphometric and allozyme variation of nine natural populations and three cultured strains of Oreochromis niloticus has been studied. Natural populations from West Africa and the Nile, identified as the same subspecies, O. niloticus niloticus, differed significantly. The Nile populations are genetically closer to the population from Lake Edward, identified as O. niloticus eduardianus. Morphological differences were observed between natural populations and their cultured strains. There are undoubtedly related to ecophenotypic influences, because cultured strains are genetically related to their natural parental populations.

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