Effects of temperature and food availability on the survival and growth of larval Arctic cod (Boreogadus saida) and walleye pollock (Gadus chalcogrammus)
Abstract Arctic cod (Boreogadus saida) is an ecologically significant species that is uniquely adapted to occupy ice edges, but warming and loss of sea ice are hypothesized to favour more facultative gadids, such as walleye pollock (Gadus chalcogrammus). To test this hypothesis, we experimentally me...
Published in: | ICES Journal of Marine Science |
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Language: | English |
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Oxford University Press (OUP)
2018
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsy062 http://academic.oup.com/icesjms/article-pdf/75/7/2386/31237296/fsy062.pdf |
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croxfordunivpr:10.1093/icesjms/fsy062 2024-06-23T07:48:56+00:00 Effects of temperature and food availability on the survival and growth of larval Arctic cod (Boreogadus saida) and walleye pollock (Gadus chalcogrammus) Koenker, Brittany L Laurel, Benjamin J Copeman, Louise A Ciannelli, Lorenzo Robert, Dominique National Marine Fisheries Service NOAA 2018 http://dx.doi.org/10.1093/icesjms/fsy062 http://academic.oup.com/icesjms/article-pdf/75/7/2386/31237296/fsy062.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 75, issue 7, page 2386-2402 ISSN 1054-3139 1095-9289 journal-article 2018 croxfordunivpr https://doi.org/10.1093/icesjms/fsy062 2024-06-11T04:19:25Z Abstract Arctic cod (Boreogadus saida) is an ecologically significant species that is uniquely adapted to occupy ice edges, but warming and loss of sea ice are hypothesized to favour more facultative gadids, such as walleye pollock (Gadus chalcogrammus). To test this hypothesis, we experimentally measured the growth and survival of Arctic cod and walleye pollock at two larval stages across a range of temperature and food conditions in the laboratory. Results indicated early and late-stage Arctic cod larvae have a competitive growth and survival advantage over walleye pollock at low temperatures. However, these advantages are lost under warmer, food-productive conditions where walleye pollock larvae survived and experienced accelerated growth rates. Growth models developed from this study emphasize the need to account for both species- and stage-specific differences in the thermal response of closely related marine fish larvae. More broadly, these new vital rate data provide a mechanistic framework to forecast spatial-temporal shifts of gadids at the Arctic-boreal interface resulting from climatic warming and altered productivity regimes. Article in Journal/Newspaper Arctic cod Arctic Boreogadus saida Sea ice Oxford University Press Arctic ICES Journal of Marine Science 75 7 2386 2402 |
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Open Polar |
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Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract Arctic cod (Boreogadus saida) is an ecologically significant species that is uniquely adapted to occupy ice edges, but warming and loss of sea ice are hypothesized to favour more facultative gadids, such as walleye pollock (Gadus chalcogrammus). To test this hypothesis, we experimentally measured the growth and survival of Arctic cod and walleye pollock at two larval stages across a range of temperature and food conditions in the laboratory. Results indicated early and late-stage Arctic cod larvae have a competitive growth and survival advantage over walleye pollock at low temperatures. However, these advantages are lost under warmer, food-productive conditions where walleye pollock larvae survived and experienced accelerated growth rates. Growth models developed from this study emphasize the need to account for both species- and stage-specific differences in the thermal response of closely related marine fish larvae. More broadly, these new vital rate data provide a mechanistic framework to forecast spatial-temporal shifts of gadids at the Arctic-boreal interface resulting from climatic warming and altered productivity regimes. |
author2 |
Robert, Dominique National Marine Fisheries Service NOAA |
format |
Article in Journal/Newspaper |
author |
Koenker, Brittany L Laurel, Benjamin J Copeman, Louise A Ciannelli, Lorenzo |
spellingShingle |
Koenker, Brittany L Laurel, Benjamin J Copeman, Louise A Ciannelli, Lorenzo Effects of temperature and food availability on the survival and growth of larval Arctic cod (Boreogadus saida) and walleye pollock (Gadus chalcogrammus) |
author_facet |
Koenker, Brittany L Laurel, Benjamin J Copeman, Louise A Ciannelli, Lorenzo |
author_sort |
Koenker, Brittany L |
title |
Effects of temperature and food availability on the survival and growth of larval Arctic cod (Boreogadus saida) and walleye pollock (Gadus chalcogrammus) |
title_short |
Effects of temperature and food availability on the survival and growth of larval Arctic cod (Boreogadus saida) and walleye pollock (Gadus chalcogrammus) |
title_full |
Effects of temperature and food availability on the survival and growth of larval Arctic cod (Boreogadus saida) and walleye pollock (Gadus chalcogrammus) |
title_fullStr |
Effects of temperature and food availability on the survival and growth of larval Arctic cod (Boreogadus saida) and walleye pollock (Gadus chalcogrammus) |
title_full_unstemmed |
Effects of temperature and food availability on the survival and growth of larval Arctic cod (Boreogadus saida) and walleye pollock (Gadus chalcogrammus) |
title_sort |
effects of temperature and food availability on the survival and growth of larval arctic cod (boreogadus saida) and walleye pollock (gadus chalcogrammus) |
publisher |
Oxford University Press (OUP) |
publishDate |
2018 |
url |
http://dx.doi.org/10.1093/icesjms/fsy062 http://academic.oup.com/icesjms/article-pdf/75/7/2386/31237296/fsy062.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic cod Arctic Boreogadus saida Sea ice |
genre_facet |
Arctic cod Arctic Boreogadus saida Sea ice |
op_source |
ICES Journal of Marine Science volume 75, issue 7, page 2386-2402 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/fsy062 |
container_title |
ICES Journal of Marine Science |
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75 |
container_issue |
7 |
container_start_page |
2386 |
op_container_end_page |
2402 |
_version_ |
1802639243190730752 |