Data from: Genetic stock structure of Anadromous Arctic char in Canada’s Central Arctic: potential implications for the management of Canada’s largest Arctic char commercial fishery
The Arctic Char Salvelinus alpinus is widely considered the most important subsistence fish species in the Canadian Arctic. Throughout the species’ range, commercial fisheries for Arctic Char also exist, the management of which primarily follows river-specific harvest strategies. Such an approach, h...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:95917 2023-07-02T03:31:00+02:00 Data from: Genetic stock structure of Anadromous Arctic char in Canada’s Central Arctic: potential implications for the management of Canada’s largest Arctic char commercial fishery Harris, Les N. Moore, Jean-Sébastien Bajno, Robert Tallman, Ross F. 2016-11-29T22:51:16.000+01:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-xr-b9kd https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:95917 unknown doi:10.5061/dryad.8ss09/1 doi:10.1080/02755947.2016.1227399 http://nbn-resolving.org/urn:nbn:nl:ui:13-xr-b9kd doi:10.5061/dryad.8ss09 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:95917 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2016 ftdans https://doi.org/10.5061/dryad.8ss09/110.1080/02755947.2016.122739910.5061/dryad.8ss09 2023-06-13T13:23:45Z The Arctic Char Salvelinus alpinus is widely considered the most important subsistence fish species in the Canadian Arctic. Throughout the species’ range, commercial fisheries for Arctic Char also exist, the management of which primarily follows river-specific harvest strategies. Such an approach, however, may not be appropriate if the management unit or stock does not accurately reflect a demographically independent population or if mixtures of populations are being harvested. We assayed microsatellite DNA variation among 744 Arctic Char from the Cambridge Bay region, Nunavut, where the largest commercial fishery for the species exists, in order to identify the most appropriate spatial scale at which these stocks should be managed. Our sampling design specifically mirrored that of the commercial fishery in order to describe patterns of genetic structure and genetic variation within and among the harvested component. We also included Arctic Char from more geographically distant sampling locations to provide a spatial context for genetic stock structuring in the region. Overall, we found moderate but significant structure across the entire study area. In contrast, commercially harvested stocks were weakly differentiated, especially among the stocks that are considered part of the Wellington Bay complex. We propose several hypotheses for this weak differentiation, including (1) our sampling design that mirrored the commercial harvest, (2) high rates of potential gene flow, and (3) large effective population sizes. Our results may have important implications for commercial and subsistence fisheries management, including the notion that there are several potential units of conservation below the species level. Other/Unknown Material Arctic Cambridge Bay Nunavut Salvelinus alpinus Wellington Bay Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Arctic Cambridge Bay ENVELOPE(-105.130,-105.130,69.037,69.037) Nunavut Wellington Bay ENVELOPE(-106.586,-106.586,69.334,69.334) |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Harris, Les N. Moore, Jean-Sébastien Bajno, Robert Tallman, Ross F. Data from: Genetic stock structure of Anadromous Arctic char in Canada’s Central Arctic: potential implications for the management of Canada’s largest Arctic char commercial fishery |
topic_facet |
Life sciences medicine and health care |
description |
The Arctic Char Salvelinus alpinus is widely considered the most important subsistence fish species in the Canadian Arctic. Throughout the species’ range, commercial fisheries for Arctic Char also exist, the management of which primarily follows river-specific harvest strategies. Such an approach, however, may not be appropriate if the management unit or stock does not accurately reflect a demographically independent population or if mixtures of populations are being harvested. We assayed microsatellite DNA variation among 744 Arctic Char from the Cambridge Bay region, Nunavut, where the largest commercial fishery for the species exists, in order to identify the most appropriate spatial scale at which these stocks should be managed. Our sampling design specifically mirrored that of the commercial fishery in order to describe patterns of genetic structure and genetic variation within and among the harvested component. We also included Arctic Char from more geographically distant sampling locations to provide a spatial context for genetic stock structuring in the region. Overall, we found moderate but significant structure across the entire study area. In contrast, commercially harvested stocks were weakly differentiated, especially among the stocks that are considered part of the Wellington Bay complex. We propose several hypotheses for this weak differentiation, including (1) our sampling design that mirrored the commercial harvest, (2) high rates of potential gene flow, and (3) large effective population sizes. Our results may have important implications for commercial and subsistence fisheries management, including the notion that there are several potential units of conservation below the species level. |
author |
Harris, Les N. Moore, Jean-Sébastien Bajno, Robert Tallman, Ross F. |
author_facet |
Harris, Les N. Moore, Jean-Sébastien Bajno, Robert Tallman, Ross F. |
author_sort |
Harris, Les N. |
title |
Data from: Genetic stock structure of Anadromous Arctic char in Canada’s Central Arctic: potential implications for the management of Canada’s largest Arctic char commercial fishery |
title_short |
Data from: Genetic stock structure of Anadromous Arctic char in Canada’s Central Arctic: potential implications for the management of Canada’s largest Arctic char commercial fishery |
title_full |
Data from: Genetic stock structure of Anadromous Arctic char in Canada’s Central Arctic: potential implications for the management of Canada’s largest Arctic char commercial fishery |
title_fullStr |
Data from: Genetic stock structure of Anadromous Arctic char in Canada’s Central Arctic: potential implications for the management of Canada’s largest Arctic char commercial fishery |
title_full_unstemmed |
Data from: Genetic stock structure of Anadromous Arctic char in Canada’s Central Arctic: potential implications for the management of Canada’s largest Arctic char commercial fishery |
title_sort |
data from: genetic stock structure of anadromous arctic char in canada’s central arctic: potential implications for the management of canada’s largest arctic char commercial fishery |
publishDate |
2016 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-xr-b9kd https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:95917 |
long_lat |
ENVELOPE(-105.130,-105.130,69.037,69.037) ENVELOPE(-106.586,-106.586,69.334,69.334) |
geographic |
Arctic Cambridge Bay Nunavut Wellington Bay |
geographic_facet |
Arctic Cambridge Bay Nunavut Wellington Bay |
genre |
Arctic Cambridge Bay Nunavut Salvelinus alpinus Wellington Bay |
genre_facet |
Arctic Cambridge Bay Nunavut Salvelinus alpinus Wellington Bay |
op_relation |
doi:10.5061/dryad.8ss09/1 doi:10.1080/02755947.2016.1227399 http://nbn-resolving.org/urn:nbn:nl:ui:13-xr-b9kd doi:10.5061/dryad.8ss09 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:95917 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.8ss09/110.1080/02755947.2016.122739910.5061/dryad.8ss09 |
_version_ |
1770275262317985792 |