Seasonal movements and connectivity of an Atlantic cod (Gadus morhua) spawning component in the western Gulf of Maine
Abstract Movement patterns of marine fishes can have considerable impacts on their population dynamics. A thorough understanding of fish movements is therefore required for informing stock identification, stock assessment, and fishery management. This study investigated the seasonal movements and co...
Published in: | ICES Journal of Marine Science |
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsw190 http://academic.oup.com/icesjms/article-pdf/74/6/1780/31244986/fsw190.pdf |
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croxfordunivpr:10.1093/icesjms/fsw190 2024-09-15T17:55:29+00:00 Seasonal movements and connectivity of an Atlantic cod (Gadus morhua) spawning component in the western Gulf of Maine Zemeckis, Douglas R. Liu, Chang Cowles, Geoffrey W. Dean, Micah J. Hoffman, William S. Martins, David Cadrin, Steven X. Watson, James 2017 http://dx.doi.org/10.1093/icesjms/fsw190 http://academic.oup.com/icesjms/article-pdf/74/6/1780/31244986/fsw190.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 74, issue 6, page 1780-1796 ISSN 1054-3139 1095-9289 journal-article 2017 croxfordunivpr https://doi.org/10.1093/icesjms/fsw190 2024-07-08T04:24:05Z Abstract Movement patterns of marine fishes can have considerable impacts on their population dynamics. A thorough understanding of fish movements is therefore required for informing stock identification, stock assessment, and fishery management. This study investigated the seasonal movements and connectivity of a spring-spawning component of Atlantic cod (Gadus morhua) in the western Gulf of Maine. From 2010 through 2013, spawning cod were sampled within an inshore spawning closure and tagged with conventional tags (n = 2368), acoustic transmitters (n = 106), and archival data storage tags (n = 266). Acoustic receivers were deployed on three inshore spawning sites to test for connectivity among sites. Data from archival tags were used to describe seasonal habitat occupancy and movement patterns via geolocation to statistical areas. Tagging data indicated that cod were primarily residential in the western Gulf of Maine, moving inshore to spawn during the spring (April–July), followed by an offshore migration to their feeding grounds for summer and fall. Cod generally inhabited waters from 45 to 175 m, with the deep offshore basins (>150 m) serving as overwintering habitat. Occupied water temperatures ranged from 4.0 to 13.3 °C, with the coldest temperatures experienced from March through July and the warmest temperatures experienced from September through January. Results provided evidence of spawning site fidelity and connectivity among spawning sites, with some fish visiting multiple spawning sites within or between years. The movements observed during and after the spring-spawning season serve as important mechanisms influencing metapopulation dynamics in the Gulf of Maine region, including both fine- and broad-scale population structure. The improved understanding of cod movement patterns will assist fishery managers in developing management plans, including spawning protection measures, and help to address remaining uncertainties with respect to cod population structure in the Gulf of Maine and other ... Article in Journal/Newspaper atlantic cod Gadus morhua Oxford University Press ICES Journal of Marine Science 74 6 1780 1796 |
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Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract Movement patterns of marine fishes can have considerable impacts on their population dynamics. A thorough understanding of fish movements is therefore required for informing stock identification, stock assessment, and fishery management. This study investigated the seasonal movements and connectivity of a spring-spawning component of Atlantic cod (Gadus morhua) in the western Gulf of Maine. From 2010 through 2013, spawning cod were sampled within an inshore spawning closure and tagged with conventional tags (n = 2368), acoustic transmitters (n = 106), and archival data storage tags (n = 266). Acoustic receivers were deployed on three inshore spawning sites to test for connectivity among sites. Data from archival tags were used to describe seasonal habitat occupancy and movement patterns via geolocation to statistical areas. Tagging data indicated that cod were primarily residential in the western Gulf of Maine, moving inshore to spawn during the spring (April–July), followed by an offshore migration to their feeding grounds for summer and fall. Cod generally inhabited waters from 45 to 175 m, with the deep offshore basins (>150 m) serving as overwintering habitat. Occupied water temperatures ranged from 4.0 to 13.3 °C, with the coldest temperatures experienced from March through July and the warmest temperatures experienced from September through January. Results provided evidence of spawning site fidelity and connectivity among spawning sites, with some fish visiting multiple spawning sites within or between years. The movements observed during and after the spring-spawning season serve as important mechanisms influencing metapopulation dynamics in the Gulf of Maine region, including both fine- and broad-scale population structure. The improved understanding of cod movement patterns will assist fishery managers in developing management plans, including spawning protection measures, and help to address remaining uncertainties with respect to cod population structure in the Gulf of Maine and other ... |
author2 |
Watson, James |
format |
Article in Journal/Newspaper |
author |
Zemeckis, Douglas R. Liu, Chang Cowles, Geoffrey W. Dean, Micah J. Hoffman, William S. Martins, David Cadrin, Steven X. |
spellingShingle |
Zemeckis, Douglas R. Liu, Chang Cowles, Geoffrey W. Dean, Micah J. Hoffman, William S. Martins, David Cadrin, Steven X. Seasonal movements and connectivity of an Atlantic cod (Gadus morhua) spawning component in the western Gulf of Maine |
author_facet |
Zemeckis, Douglas R. Liu, Chang Cowles, Geoffrey W. Dean, Micah J. Hoffman, William S. Martins, David Cadrin, Steven X. |
author_sort |
Zemeckis, Douglas R. |
title |
Seasonal movements and connectivity of an Atlantic cod (Gadus morhua) spawning component in the western Gulf of Maine |
title_short |
Seasonal movements and connectivity of an Atlantic cod (Gadus morhua) spawning component in the western Gulf of Maine |
title_full |
Seasonal movements and connectivity of an Atlantic cod (Gadus morhua) spawning component in the western Gulf of Maine |
title_fullStr |
Seasonal movements and connectivity of an Atlantic cod (Gadus morhua) spawning component in the western Gulf of Maine |
title_full_unstemmed |
Seasonal movements and connectivity of an Atlantic cod (Gadus morhua) spawning component in the western Gulf of Maine |
title_sort |
seasonal movements and connectivity of an atlantic cod (gadus morhua) spawning component in the western gulf of maine |
publisher |
Oxford University Press (OUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1093/icesjms/fsw190 http://academic.oup.com/icesjms/article-pdf/74/6/1780/31244986/fsw190.pdf |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
ICES Journal of Marine Science volume 74, issue 6, page 1780-1796 ISSN 1054-3139 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/fsw190 |
container_title |
ICES Journal of Marine Science |
container_volume |
74 |
container_issue |
6 |
container_start_page |
1780 |
op_container_end_page |
1796 |
_version_ |
1810431765670526976 |