Stranding collections indicate broad-scale connectivity across the range of a pelagic marine predator, the Atlantic white-sided dolphin (Lagenorhynchus acutus)

M.-A. Gose; E. Humble; A. BrownlowB. MikkelsenC. LoftusD. WallE. RoganM. ten DoeschateN. DavisonR. Ogden

首页> 外文期刊>ICES journal of marine science: International Council for the Exploration of the Sea journal of marine science >Stranding collections indicate broad-scale connectivity across the range of a pelagic marine predator, the Atlantic white-sided dolphin (Lagenorhynchus acutus)

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Stranding collections indicate broad-scale connectivity across the range of a pelagic marine predator, the Atlantic white-sided dolphin (Lagenorhynchus acutus)

机译：Stranding collections indicate broad-scale connectivity across the range of a pelagic marine predator, the Atlantic white-sided dolphin (Lagenorhynchus acutus)

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Understanding the extent of population genetic connectivity in highly mobile marine species is vital for delineating management units. However,obtaining samples for generating genetic data is challenging for species inhabiting inaccessible pelagic waters. As a result, managementstrategies do not always align with underlying population biology. Marine strandings provide an accessible and cost-effective sample sourcefor research on elusive cetaceans and can be used collaboratively among stranding networks to generate ecosystem-wide population geneticassessments. Here, we used samples collected from strandings and free-ranging individuals across the North Atlantic to investigate populationstructure, genetic diversity, and individual relatedness in the Atlantic white-sided dolphin (AWSD; Lagenorhynchus acutus), a widely distributedmarine predator. Mitochondrial DNA sequences and nuclear DNA single-nucleotide polymorphisms showed a complete lack of population differentiationacross the species’ range, implying an unusual pattern of strong connectivity. No differences in genetic diversity among geographicregions and weak within-group relatedness further support the existence of species-wide panmixia in AWSD. This study emphasises the valueof long-term stranding collections for cetacean research and has important implications for AWSD conservation management.

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《ICES journal of marine science: International Council for the Exploration of the Sea journal of marine science》 |2023年第4期|1120-1128|共9页
作者
M.-A. Gose; E. Humble; A. BrownlowB. MikkelsenC. LoftusD. WallE. RoganM. ten DoeschateN. DavisonR. Ogden;
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Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Edinburgh EH25 9RG, UK;

Scottish Marine Animal Stranding Scheme, School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary andLife Science, University of Glasgow, Glasgow G12 8QQ, UK;

Faroe Marine Research Institute (Havstovan), Tórshavn FO-100, Faroe IslandsIrish Whale and Dolphin Group (IWDG), Kilrush V15 E762, IrelandSchool of Biological, Earth and Environmental Sciences, University College Cork, Cork T23 N73K, Ireland;

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conservation genetics; dolphin; genomics; Lagenorhynchus; molecular ecology; population genetics; strandings;

Stranding collections indicate broad-scale connectivity across the range of a pelagic marine predator, the Atlantic white-sided dolphin (Lagenorhynchus acutus)

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