Research article - Peer-reviewed, 2011
Genetic population structure of perch Perca fluviatilis along the Swedish coast of the Baltic Sea
Olsson, J.; Mo, K.; Florin, A. -B.; Aho, T.; Ryman, N.Abstract
In this study, the genetic variation of perch Perca fluviatilis from 18 different sites along the Swedish coast of the Baltic Sea was assessed. There was a relative strong support for isolation by distance and the results suggest an overall departure from panmixia. The level of genetic divergence was moderate (global F(ST) = 0.04) and indications of differences in the population genetic structure between the two major basins (central Baltic Sea and Gulf of Bothnia) in the Baltic Sea were found. There was a higher level of differentiation in the central Baltic Sea compared to the Gulf of Bothnia, and the results suggest that stretches of deep water might act as barriers to gene flow in the species. On the basis of the estimation of genetic patch size, the results corroborate previous mark-recapture studies and suggest that this is a species suitable for local management. In all, the findings of this study emphasize the importance of considering regional differences even when strong isolation by distance characterize the genetic population structure of species. (C) 2011 The Authors Journal of Fish Biology (C) 2011 The Fisheries Society of the British IslesKeywords
barriers to gene flow; coastal fish; microsatellites; isolation by distance; local managementPublished in
Journal of Fish Biology2011, volume: 79, number: 1, pages: 122-137
Authors' information
Swedish Board of Fisheries
Swedish Board of Fisheries
Swedish Board of Fisheries
Aho, Teija
Swedish Board of Fisheries
Ryman, Nils
Stockholm University
UKÄ Subject classification
Fish and Aquacultural Science
Publication Identifiers
DOI: https://doi.org/10.1111/j.1095-8649.2011.02998.x
URI (permanent link to this page)
https://res.slu.se/id/publ/37140