Morphology of Arctic cod (Boreogadus saida) assessed according to habitat preference and age in the Beaufort Sea ...
Arctic cod (Boreogadus saida) represents the most widespread and abundant fish in the Arctic and is a critical trophic link in its ecosystems. Like many species endemic to the region, it has lost essential habitat as the extent and thickness of sea ice have declined substantially in recent decades....
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Dryad
2023
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Online Access: | https://dx.doi.org/10.5061/dryad.5dv41nsbh https://datadryad.org/stash/dataset/doi:10.5061/dryad.5dv41nsbh |
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ftdatacite:10.5061/dryad.5dv41nsbh 2024-10-13T14:03:34+00:00 Morphology of Arctic cod (Boreogadus saida) assessed according to habitat preference and age in the Beaufort Sea ... Roy, Denis Malizia, Juliano Launay, Marie Bruvold, Ingrid Quintela, María Johansen, Torild Reist, James Majewski, Andrew 2023 https://dx.doi.org/10.5061/dryad.5dv41nsbh https://datadryad.org/stash/dataset/doi:10.5061/dryad.5dv41nsbh en eng Dryad https://github.com/denisroy1/Arctic-cod-Morphology/ https://github.com/denisroy1/Arctic-cod-Morphology/ https://dx.doi.org/10.1139/as-2022-0043 Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 FOS: Biological sciences Arctic marine ecosystem Ecotypes key species Functional morphology Geometric Morphometrics gill rakers benthic-pelagic coupling ontogeny Dataset dataset 2023 ftdatacite https://doi.org/10.5061/dryad.5dv41nsbh10.1139/as-2022-0043 2024-10-01T11:13:55Z Arctic cod (Boreogadus saida) represents the most widespread and abundant fish in the Arctic and is a critical trophic link in its ecosystems. Like many species endemic to the region, it has lost essential habitat as the extent and thickness of sea ice have declined substantially in recent decades. Extreme warming induced by climate change continues to deteriorate polar marine environments. Thus, understanding how Arctic cod uses and partitions its habitat/environment is central to its conservation. We assessed Arctic cod functional morphology using traditional (including gill rakers) and geometric morphometrics and explored whether these differed among habitats and age classes using multivariate techniques. While distinct ecotypes have been proposed, these were not detected in our analyses. Rather, results show similar patterns in the external morphology of Arctic cod across habitats and age classes in the Beaufort Sea. However, analysis of gill rakers revealed concurrent habitat- and age-specific changes ... : Arctic cod were collected along predefined transects in the Beaufort Sea as part of the Canadian Beaufort Sea Marine Ecosystem Assessment program run by Fisheries and Oceans Canada. Collected fish were frozen and sent to the Fish Population and Conservation Genetics laboratory at McGill University for processing. Here, fish were thawed and photographed in standardised manner. Because some fish were in poor conditions (after collection, freezing, and thawing) not all fish were usable in all analyses (as described in the text). Fish pictures were analysed for geometric morphometrics to assess shape and shape features. Traditional morphology was also assessed from standardised pictures. The gill arch on the right side of each usable fish was extracted under a dissecting microscope and the length of the gill arch and the number of gill rakers was recorded. ... Dataset Arctic Arctic cod Arctic Beaufort Sea Boreogadus saida Climate change Sea ice DataCite Arctic Canada |
institution |
Open Polar |
collection |
DataCite |
op_collection_id |
ftdatacite |
language |
English |
topic |
FOS: Biological sciences Arctic marine ecosystem Ecotypes key species Functional morphology Geometric Morphometrics gill rakers benthic-pelagic coupling ontogeny |
spellingShingle |
FOS: Biological sciences Arctic marine ecosystem Ecotypes key species Functional morphology Geometric Morphometrics gill rakers benthic-pelagic coupling ontogeny Roy, Denis Malizia, Juliano Launay, Marie Bruvold, Ingrid Quintela, María Johansen, Torild Reist, James Majewski, Andrew Morphology of Arctic cod (Boreogadus saida) assessed according to habitat preference and age in the Beaufort Sea ... |
topic_facet |
FOS: Biological sciences Arctic marine ecosystem Ecotypes key species Functional morphology Geometric Morphometrics gill rakers benthic-pelagic coupling ontogeny |
description |
Arctic cod (Boreogadus saida) represents the most widespread and abundant fish in the Arctic and is a critical trophic link in its ecosystems. Like many species endemic to the region, it has lost essential habitat as the extent and thickness of sea ice have declined substantially in recent decades. Extreme warming induced by climate change continues to deteriorate polar marine environments. Thus, understanding how Arctic cod uses and partitions its habitat/environment is central to its conservation. We assessed Arctic cod functional morphology using traditional (including gill rakers) and geometric morphometrics and explored whether these differed among habitats and age classes using multivariate techniques. While distinct ecotypes have been proposed, these were not detected in our analyses. Rather, results show similar patterns in the external morphology of Arctic cod across habitats and age classes in the Beaufort Sea. However, analysis of gill rakers revealed concurrent habitat- and age-specific changes ... : Arctic cod were collected along predefined transects in the Beaufort Sea as part of the Canadian Beaufort Sea Marine Ecosystem Assessment program run by Fisheries and Oceans Canada. Collected fish were frozen and sent to the Fish Population and Conservation Genetics laboratory at McGill University for processing. Here, fish were thawed and photographed in standardised manner. Because some fish were in poor conditions (after collection, freezing, and thawing) not all fish were usable in all analyses (as described in the text). Fish pictures were analysed for geometric morphometrics to assess shape and shape features. Traditional morphology was also assessed from standardised pictures. The gill arch on the right side of each usable fish was extracted under a dissecting microscope and the length of the gill arch and the number of gill rakers was recorded. ... |
format |
Dataset |
author |
Roy, Denis Malizia, Juliano Launay, Marie Bruvold, Ingrid Quintela, María Johansen, Torild Reist, James Majewski, Andrew |
author_facet |
Roy, Denis Malizia, Juliano Launay, Marie Bruvold, Ingrid Quintela, María Johansen, Torild Reist, James Majewski, Andrew |
author_sort |
Roy, Denis |
title |
Morphology of Arctic cod (Boreogadus saida) assessed according to habitat preference and age in the Beaufort Sea ... |
title_short |
Morphology of Arctic cod (Boreogadus saida) assessed according to habitat preference and age in the Beaufort Sea ... |
title_full |
Morphology of Arctic cod (Boreogadus saida) assessed according to habitat preference and age in the Beaufort Sea ... |
title_fullStr |
Morphology of Arctic cod (Boreogadus saida) assessed according to habitat preference and age in the Beaufort Sea ... |
title_full_unstemmed |
Morphology of Arctic cod (Boreogadus saida) assessed according to habitat preference and age in the Beaufort Sea ... |
title_sort |
morphology of arctic cod (boreogadus saida) assessed according to habitat preference and age in the beaufort sea ... |
publisher |
Dryad |
publishDate |
2023 |
url |
https://dx.doi.org/10.5061/dryad.5dv41nsbh https://datadryad.org/stash/dataset/doi:10.5061/dryad.5dv41nsbh |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Arctic cod Arctic Beaufort Sea Boreogadus saida Climate change Sea ice |
genre_facet |
Arctic Arctic cod Arctic Beaufort Sea Boreogadus saida Climate change Sea ice |
op_relation |
https://github.com/denisroy1/Arctic-cod-Morphology/ https://github.com/denisroy1/Arctic-cod-Morphology/ https://dx.doi.org/10.1139/as-2022-0043 |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.5061/dryad.5dv41nsbh10.1139/as-2022-0043 |
_version_ |
1812808656856547328 |