Genetic Structure of Capelin (Mallotus villosus) in the Northwest Atlantic Ocean
Capelin (Mallotus villosus) is a commercially exploited, key forage-fish species found in the boreal waters of the North Pacific and North Atlantic Oceans. We examined the population structure of capelin throughout their range in the Canadian northwest Atlantic Ocean using genetic-based methods. Cap...
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ftpubmed:oai:pubmedcentral.nih.gov:4378951 2023-05-15T17:20:07+02:00 Genetic Structure of Capelin (Mallotus villosus) in the Northwest Atlantic Ocean Kenchington, Ellen L. Nakashima, Brian S. Taggart, Christopher T. Hamilton, Lorraine C. 2015-03-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4378951 http://www.ncbi.nlm.nih.gov/pubmed/25822621 https://doi.org/10.1371/journal.pone.0122315 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25822621 http://dx.doi.org/10.1371/journal.pone.0122315 http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited CC-BY Research Article Text 2015 ftpubmed https://doi.org/10.1371/journal.pone.0122315 2015-04-12T00:00:57Z Capelin (Mallotus villosus) is a commercially exploited, key forage-fish species found in the boreal waters of the North Pacific and North Atlantic Oceans. We examined the population structure of capelin throughout their range in the Canadian northwest Atlantic Ocean using genetic-based methods. Capelin collected at ten beach and five demersal spawning locations over the period 2002 through 2008 (N = 3,433 fish) were genotyped using six polymorphic microsatellite loci. Temporally distinct samples were identified at three beach spawning locations: Chance Cove, Little Lawn and Straitsview, Newfoundland. Four capelin stocks are assumed for fisheries management in the northwest Atlantic Ocean based on meristics, morphometrics, tag returns, and seasonal distribution patterns. Our results suggested groupings that were somewhat different than the assumed structure, and indicate at least seven genetically defined populations arising from two ancestral populations. The spatial mosaic of capelin from each of the two basal cluster groups explains much of the observed geographic variability amongst neighbouring samples. The genetic-defined populations were resolved at Jost’s Dest ≥ 0.01 and were composed of fish collected 1) in the Gulf of St. Lawrence, 2) along the south and east coasts of Newfoundland, 3) along coastal northern Newfoundland and southern Labrador, 4) along coastal northern Labrador, 5) near the Saguenay River, and at two nearshore demersal spawning sites, 6) one at Grebes Nest off Bellevue Beach on the east coast of Newfoundland, and 7) one off the coast of Labrador at Domino Run. Moreover, the offshore demersal spawners on the Scotian Shelf and Southeast Shoal appeared to be related to the inshore demersal spawners at Grebes Nest and in Domino Run and to beach spawners from the Gulf of St. Lawrence. Text Newfoundland North Atlantic Northwest Atlantic PubMed Central (PMC) Domino Run ENVELOPE(-55.798,-55.798,53.483,53.483) Newfoundland Pacific PLOS ONE 10 3 e0122315 |
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Research Article Kenchington, Ellen L. Nakashima, Brian S. Taggart, Christopher T. Hamilton, Lorraine C. Genetic Structure of Capelin (Mallotus villosus) in the Northwest Atlantic Ocean |
topic_facet |
Research Article |
description |
Capelin (Mallotus villosus) is a commercially exploited, key forage-fish species found in the boreal waters of the North Pacific and North Atlantic Oceans. We examined the population structure of capelin throughout their range in the Canadian northwest Atlantic Ocean using genetic-based methods. Capelin collected at ten beach and five demersal spawning locations over the period 2002 through 2008 (N = 3,433 fish) were genotyped using six polymorphic microsatellite loci. Temporally distinct samples were identified at three beach spawning locations: Chance Cove, Little Lawn and Straitsview, Newfoundland. Four capelin stocks are assumed for fisheries management in the northwest Atlantic Ocean based on meristics, morphometrics, tag returns, and seasonal distribution patterns. Our results suggested groupings that were somewhat different than the assumed structure, and indicate at least seven genetically defined populations arising from two ancestral populations. The spatial mosaic of capelin from each of the two basal cluster groups explains much of the observed geographic variability amongst neighbouring samples. The genetic-defined populations were resolved at Jost’s Dest ≥ 0.01 and were composed of fish collected 1) in the Gulf of St. Lawrence, 2) along the south and east coasts of Newfoundland, 3) along coastal northern Newfoundland and southern Labrador, 4) along coastal northern Labrador, 5) near the Saguenay River, and at two nearshore demersal spawning sites, 6) one at Grebes Nest off Bellevue Beach on the east coast of Newfoundland, and 7) one off the coast of Labrador at Domino Run. Moreover, the offshore demersal spawners on the Scotian Shelf and Southeast Shoal appeared to be related to the inshore demersal spawners at Grebes Nest and in Domino Run and to beach spawners from the Gulf of St. Lawrence. |
format |
Text |
author |
Kenchington, Ellen L. Nakashima, Brian S. Taggart, Christopher T. Hamilton, Lorraine C. |
author_facet |
Kenchington, Ellen L. Nakashima, Brian S. Taggart, Christopher T. Hamilton, Lorraine C. |
author_sort |
Kenchington, Ellen L. |
title |
Genetic Structure of Capelin (Mallotus villosus) in the Northwest Atlantic Ocean |
title_short |
Genetic Structure of Capelin (Mallotus villosus) in the Northwest Atlantic Ocean |
title_full |
Genetic Structure of Capelin (Mallotus villosus) in the Northwest Atlantic Ocean |
title_fullStr |
Genetic Structure of Capelin (Mallotus villosus) in the Northwest Atlantic Ocean |
title_full_unstemmed |
Genetic Structure of Capelin (Mallotus villosus) in the Northwest Atlantic Ocean |
title_sort |
genetic structure of capelin (mallotus villosus) in the northwest atlantic ocean |
publisher |
Public Library of Science |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4378951 http://www.ncbi.nlm.nih.gov/pubmed/25822621 https://doi.org/10.1371/journal.pone.0122315 |
long_lat |
ENVELOPE(-55.798,-55.798,53.483,53.483) |
geographic |
Domino Run Newfoundland Pacific |
geographic_facet |
Domino Run Newfoundland Pacific |
genre |
Newfoundland North Atlantic Northwest Atlantic |
genre_facet |
Newfoundland North Atlantic Northwest Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25822621 http://dx.doi.org/10.1371/journal.pone.0122315 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0122315 |
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PLOS ONE |
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10 |
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3 |
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e0122315 |
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