Comparative Phylogeography of Salmonids in the British Isles: Implications for the Management of Biodiversity ...

• Main Author: Verspoor, E.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: ASC 2005 - T - Theme session 2024
• Subjects: Fisheries and aquaculture; Technologies and data; Arctic charr; Arctic; Atlantic salmon
• Online Access: https://dx.doi.org/10.17895/ices.pub.25350541.v1; https://ices-library.figshare.com/articles/conference_contribution/Comparative_Phylogeography_of_Salmonids_in_the_British_Isles_Implications_for_the_Management_of_Biodiversity/25350541/1

No abstracts are to be cited without prior reference to the author.Intraspecific biodiversity underpins species' character and abundance. An understanding of its nature and distribution is needed by managers to develop effective programmes for conserving local fish stocks. Prior to 18,000 yrs bp, much of northern Europe was glaciated. The fish fauna of the British Isles, much of which was glaciated at the time, is dominated by salmonids and has largely evolved since this time. A comparative study was made of the distribution of mitochondrial DNA variation in Atlantic salmon, brown trout and Arctic charr based on restriction enzyme analysis of the D-loop, cytochrome b, and the ND1 gene regions of the mitochondrial genome. The study found all three species to display significant spatial diversity, both within and among river systems. Arctic charr populations and nonanadromous populations of brown trout showed the greatest spatial divergence, including major regional differences, as well as the lowest within ...