title: Low genetic and morphometric intraspecific divergence in peripheral copadichromis populations (perciformes: cichlidae) in the lake Malawi basin.
abstract: Peripheral isolated populations may undergo rapid divergence from the main population due to various factors such as a bottleneck or a founder effect followed by genetic drift or local selection pressures. Recent populations of two economically important Copadichromis species in Lake Malombe, a satellite lake of Lake Malawi, were neither genetically nor morphometrically distinct from their source populations in the main lake. Evidence was found for a founder effect which had a different impact on the genetic composition of the two species. In addition, the increased fishing pressure in Lake Malombe may have led to a reduction of the body sizes of both species.
authors.affiliation: Interdisciplinary Research Centre, Katholieke Universiteit Leuven, Campus Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium.
authors.forename: Dieter
authors.initials: D
authors.lastname: Anseeuw
authors.forename: Joost A M
authors.initials: JA
authors.lastname: Raeymaekers
authors.forename: Paul
authors.initials: P
authors.lastname: Busselen
authors.forename: Erik
authors.initials: E
authors.lastname: Verheyen
authors.forename: Jos
authors.initials: J
authors.lastname: Snoeks