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Sex change and effective population size: implications for population genetic studies in marine fish KU Leuven
Large variance in reproductive success is the primary factor that reduces effective population size (Ne) in natural populations. In sequentially hermaphroditic (sex-changing) fish, the sex ratio is typically skewed and biased towards the 'first' sex, while reproductive success increases considerably after sex change. Therefore, sex-changing fish populations are theoretically expected to have lower Ne than gonochorists (separate sexes), assuming ...
Connectivity and Dispersal Patterns of Protected Biogenic Reefs: Implications for the Conservation of Modiolus modiolus (L.) in the Irish Sea KU Leuven
Biogenic reefs created by Modiolus modiolus (Linnaeus, 1758) (horse mussel reefs) are marine habitats which support high levels of species biodiversity and provide valuable ecosystem services. Currently, M. modiolus reefs are listed as a threatened and/or declining species and habitat in all OSPAR regions and thus are highlighted as a conservation priority under the EU Marine Strategy Framework Directive (MSFD). Determining patterns of larval ...
A species-to-be? The genetic status and colonization history of the critically endangered Killarney shad KU Leuven
Typically anadromous, the twaite shad (Alosa fallax) can become landlocked and adapt to a fully freshwater life. The only landlocked shad population in Northwestern Europe is found in a lake in Ireland, Lough Leane. The Killarney shad, Alosa killarnensis (or Alosa fallax killarnensis, as it is mostly referred to) displays a level of morphological divergence that indicates a long-term isolation in the lake. Microsatellites and mtDNA control ...