Northwest Atlantic mackerel population structure evaluated using otolith δ18O composition
Abstract The Northwest Atlantic mackerel (Scomber scombrus) population is comprised of northern and southern contingents, each with distinct natal regions in the United States and Canada. We tested hypotheses on natal origin and contingent mixing by analysing natal otolith δ18O values, evaluating th...
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2020
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsaa117 http://academic.oup.com/icesjms/article-pdf/77/7-8/2582/35589277/fsaa117.pdf |
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croxfordunivpr:10.1093/icesjms/fsaa117 2024-09-15T18:25:22+00:00 Northwest Atlantic mackerel population structure evaluated using otolith δ18O composition Redding, S Gray Cooper, L W Castonguay, M Wiernicki, C Secor, D H Juanes, Francis Saltonstall Kennedy Program Mid-Atlantic Fishery Management Council 2020 http://dx.doi.org/10.1093/icesjms/fsaa117 http://academic.oup.com/icesjms/article-pdf/77/7-8/2582/35589277/fsaa117.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 77, issue 7-8, page 2582-2589 ISSN 1095-9289 journal-article 2020 croxfordunivpr https://doi.org/10.1093/icesjms/fsaa117 2024-07-29T04:18:56Z Abstract The Northwest Atlantic mackerel (Scomber scombrus) population is comprised of northern and southern contingents, each with distinct natal regions in the United States and Canada. We tested hypotheses on natal origin and contingent mixing by analysing natal otolith δ18O values, evaluating the approach through an out-group comparison with the Northeast Atlantic population. Otolith δ18O values varied according to expectations between the Northeast (higher) and the Northwest (lower) Atlantic basins, and between contingents within the Northwest Atlantic stock, although contingent differences varied between years. Most adults (age-3+ years) sampled from US waters (1999–2003) represented the northern contingent (Canadian spawning site). The confirmation of the seasonal mixing of older and larger fish between the two contingents provides support and justification for the development of bi-national (United States–Canada) assessment and management of Northwest Atlantic mackerel. Article in Journal/Newspaper Northeast Atlantic Northwest Atlantic Oxford University Press ICES Journal of Marine Science 77 7-8 2582 2589 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract The Northwest Atlantic mackerel (Scomber scombrus) population is comprised of northern and southern contingents, each with distinct natal regions in the United States and Canada. We tested hypotheses on natal origin and contingent mixing by analysing natal otolith δ18O values, evaluating the approach through an out-group comparison with the Northeast Atlantic population. Otolith δ18O values varied according to expectations between the Northeast (higher) and the Northwest (lower) Atlantic basins, and between contingents within the Northwest Atlantic stock, although contingent differences varied between years. Most adults (age-3+ years) sampled from US waters (1999–2003) represented the northern contingent (Canadian spawning site). The confirmation of the seasonal mixing of older and larger fish between the two contingents provides support and justification for the development of bi-national (United States–Canada) assessment and management of Northwest Atlantic mackerel. |
author2 |
Juanes, Francis Saltonstall Kennedy Program Mid-Atlantic Fishery Management Council |
format |
Article in Journal/Newspaper |
author |
Redding, S Gray Cooper, L W Castonguay, M Wiernicki, C Secor, D H |
spellingShingle |
Redding, S Gray Cooper, L W Castonguay, M Wiernicki, C Secor, D H Northwest Atlantic mackerel population structure evaluated using otolith δ18O composition |
author_facet |
Redding, S Gray Cooper, L W Castonguay, M Wiernicki, C Secor, D H |
author_sort |
Redding, S Gray |
title |
Northwest Atlantic mackerel population structure evaluated using otolith δ18O composition |
title_short |
Northwest Atlantic mackerel population structure evaluated using otolith δ18O composition |
title_full |
Northwest Atlantic mackerel population structure evaluated using otolith δ18O composition |
title_fullStr |
Northwest Atlantic mackerel population structure evaluated using otolith δ18O composition |
title_full_unstemmed |
Northwest Atlantic mackerel population structure evaluated using otolith δ18O composition |
title_sort |
northwest atlantic mackerel population structure evaluated using otolith δ18o composition |
publisher |
Oxford University Press (OUP) |
publishDate |
2020 |
url |
http://dx.doi.org/10.1093/icesjms/fsaa117 http://academic.oup.com/icesjms/article-pdf/77/7-8/2582/35589277/fsaa117.pdf |
genre |
Northeast Atlantic Northwest Atlantic |
genre_facet |
Northeast Atlantic Northwest Atlantic |
op_source |
ICES Journal of Marine Science volume 77, issue 7-8, page 2582-2589 ISSN 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/icesjms/fsaa117 |
container_title |
ICES Journal of Marine Science |
container_volume |
77 |
container_issue |
7-8 |
container_start_page |
2582 |
op_container_end_page |
2589 |
_version_ |
1810465883016921088 |