Transborder Gene Flow between Canada and the USA and Fine‐Scale Population Structure of Atlantic Cod in the Broader Gulf of Maine Region
Abstract Fishery managers have struggled for decades to rebuild stocks of Atlantic Cod Gadus morhua in the northwestern Atlantic Ocean, and the resolution of current fine‐scale population structure will surely help those efforts. Using double digest restriction‐site associated DNA sequencing, we ana...
Published in: | Transactions of the American Fisheries Society |
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crwiley:10.1002/tafs.10305 2024-09-15T17:55:20+00:00 Transborder Gene Flow between Canada and the USA and Fine‐Scale Population Structure of Atlantic Cod in the Broader Gulf of Maine Region Puncher, Gregory Neils Wang, Yanjun Martin, Ryan DeCelles, Gregory Cadrin, Steven X. Zemeckis, Douglas Rowe, Sherrylynn Leblanc, Nathalie M. Parent, Genevieve J. Pavey, Scott A. Natural Sciences and Engineering Research Council of Canada Fisheries and Oceans Canada Canada Research Chairs 2021 http://dx.doi.org/10.1002/tafs.10305 https://onlinelibrary.wiley.com/doi/pdf/10.1002/tafs.10305 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/tafs.10305 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/tafs.10305 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 150, issue 5, page 560-577 ISSN 0002-8487 1548-8659 journal-article 2021 crwiley https://doi.org/10.1002/tafs.10305 2024-07-25T04:23:08Z Abstract Fishery managers have struggled for decades to rebuild stocks of Atlantic Cod Gadus morhua in the northwestern Atlantic Ocean, and the resolution of current fine‐scale population structure will surely help those efforts. Using double digest restriction‐site associated DNA sequencing, we analyzed 248 adult and 215 juvenile Atlantic Cod collected from areas bordering the Canada–USA boundary in 2017–2018. Chromosomal inversions from linkage group (LG) 2 and LG 7 contribute the largest amount of variance to the data set. A southwesterly decrease in the proportion of LG 1 inversion haplotypes may indicate gene flow from areas north of 45°N. Samples from both the northern Gulf of Maine and Bay of Fundy were genetically distinct from all other samples, suggesting that local spawning groups may still be active. Genetic similarities between Atlantic Cod from Browns Bank and eastern Georges Bank indicate that transborder gene flow is ongoing. These results will help to better define the stocks in order to guide the implementation of management strategies in the USA and Canada, which should consider rebuilding exhausted and genetically isolated populations. Article in Journal/Newspaper atlantic cod Gadus morhua Wiley Online Library Transactions of the American Fisheries Society |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Fishery managers have struggled for decades to rebuild stocks of Atlantic Cod Gadus morhua in the northwestern Atlantic Ocean, and the resolution of current fine‐scale population structure will surely help those efforts. Using double digest restriction‐site associated DNA sequencing, we analyzed 248 adult and 215 juvenile Atlantic Cod collected from areas bordering the Canada–USA boundary in 2017–2018. Chromosomal inversions from linkage group (LG) 2 and LG 7 contribute the largest amount of variance to the data set. A southwesterly decrease in the proportion of LG 1 inversion haplotypes may indicate gene flow from areas north of 45°N. Samples from both the northern Gulf of Maine and Bay of Fundy were genetically distinct from all other samples, suggesting that local spawning groups may still be active. Genetic similarities between Atlantic Cod from Browns Bank and eastern Georges Bank indicate that transborder gene flow is ongoing. These results will help to better define the stocks in order to guide the implementation of management strategies in the USA and Canada, which should consider rebuilding exhausted and genetically isolated populations. |
author2 |
Natural Sciences and Engineering Research Council of Canada Fisheries and Oceans Canada Canada Research Chairs |
format |
Article in Journal/Newspaper |
author |
Puncher, Gregory Neils Wang, Yanjun Martin, Ryan DeCelles, Gregory Cadrin, Steven X. Zemeckis, Douglas Rowe, Sherrylynn Leblanc, Nathalie M. Parent, Genevieve J. Pavey, Scott A. |
spellingShingle |
Puncher, Gregory Neils Wang, Yanjun Martin, Ryan DeCelles, Gregory Cadrin, Steven X. Zemeckis, Douglas Rowe, Sherrylynn Leblanc, Nathalie M. Parent, Genevieve J. Pavey, Scott A. Transborder Gene Flow between Canada and the USA and Fine‐Scale Population Structure of Atlantic Cod in the Broader Gulf of Maine Region |
author_facet |
Puncher, Gregory Neils Wang, Yanjun Martin, Ryan DeCelles, Gregory Cadrin, Steven X. Zemeckis, Douglas Rowe, Sherrylynn Leblanc, Nathalie M. Parent, Genevieve J. Pavey, Scott A. |
author_sort |
Puncher, Gregory Neils |
title |
Transborder Gene Flow between Canada and the USA and Fine‐Scale Population Structure of Atlantic Cod in the Broader Gulf of Maine Region |
title_short |
Transborder Gene Flow between Canada and the USA and Fine‐Scale Population Structure of Atlantic Cod in the Broader Gulf of Maine Region |
title_full |
Transborder Gene Flow between Canada and the USA and Fine‐Scale Population Structure of Atlantic Cod in the Broader Gulf of Maine Region |
title_fullStr |
Transborder Gene Flow between Canada and the USA and Fine‐Scale Population Structure of Atlantic Cod in the Broader Gulf of Maine Region |
title_full_unstemmed |
Transborder Gene Flow between Canada and the USA and Fine‐Scale Population Structure of Atlantic Cod in the Broader Gulf of Maine Region |
title_sort |
transborder gene flow between canada and the usa and fine‐scale population structure of atlantic cod in the broader gulf of maine region |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/tafs.10305 https://onlinelibrary.wiley.com/doi/pdf/10.1002/tafs.10305 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/tafs.10305 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/tafs.10305 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Transactions of the American Fisheries Society volume 150, issue 5, page 560-577 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/tafs.10305 |
container_title |
Transactions of the American Fisheries Society |
_version_ |
1810431628406685696 |