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Harbour seal management units

Baltic marine mammal population boundaries and phylogeography Morten Tange Olsen HELCOM Seal 8 Turku, Oct 2014. Harbour seal management units. Olsen et al 2014 Mol Ecol. Baltic harbour seals mtDNA. Grey seal population structure. Gråsælen. Grey seal population structure. mtDNA

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Harbour seal management units

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  1. Baltic marine mammalpopulation boundaries and phylogeographyMorten Tange OlsenHELCOM Seal 8Turku, Oct 2014

  2. Harbour seal management units

  3. Olsen et al 2014 Mol Ecol

  4. Baltic harbour seals mtDNA

  5. Grey seal population structure Gråsælen

  6. Grey seal population structure • mtDNA • 226 modern + 50 historic samples • 435 bp control region • Microsatellites • 79 modern samples • 14 loci;

  7. SCOTLAND WADDEN SEA LÆSØ RØDSAND FALSTERBO CHR.Ø SCOTLAND WADDEN SEA RØDSAND FALSTERBO CHR.Ø

  8. Grey sealgeneticdiversity North Sea modern (71) Danishhistoric (54) Baltic modern (142)

  9. Grey seal finds (15000-3000 BP) Sommer and Benecke 2003

  10. Grey seal finds (3000-500 BP) Sommer and Benecke 2003

  11. Grey ? Harbour Ringed Porpoise ?

  12. Changes in species composition (DK)

  13. Future studies • Combined genetic analysis of harbour, grey and ringed seal, and porpoise • Population structure and divergence times • Geological events • Climate events • Environmental factors • Historic abundance and distribution • Existing mtDNA and microsatellite data • Genomic data and ancient DNA

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