The foraging ecology of Arctic cod (Boreogadus saida) during open water (July-August) in Allen Bay, Arctic Canada
Arctic cod (Boreogadus saida) is a schooling fish providing a critical link between lower and upper trophic levels in the Arctic. This study examined foraging of Arctic cod collected from Allen Bay, Cornwallis Island, Canada (~75 N 95 W), during summer 2010 using temporal indicators of diet includin...
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Online Access: | https://scholar.uwindsor.ca/glierpub/371 https://doi.org/10.1007/s00227-013-2289-2 |
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ftunivwindsor:oai:scholar.uwindsor.ca:glierpub-1373 2023-06-11T04:07:57+02:00 The foraging ecology of Arctic cod (Boreogadus saida) during open water (July-August) in Allen Bay, Arctic Canada Matley, Jordan K. Fisk, Aaron T. Dick, Terry A. 2013-11-01T07:00:00Z https://scholar.uwindsor.ca/glierpub/371 https://doi.org/10.1007/s00227-013-2289-2 unknown Scholarship at UWindsor https://scholar.uwindsor.ca/glierpub/371 doi:10.1007/s00227-013-2289-2 https://doi.org/10.1007/s00227-013-2289-2 Great Lakes Institute for Environmental Research Publications text 2013 ftunivwindsor https://doi.org/10.1007/s00227-013-2289-2 2023-05-06T19:10:50Z Arctic cod (Boreogadus saida) is a schooling fish providing a critical link between lower and upper trophic levels in the Arctic. This study examined foraging of Arctic cod collected from Allen Bay, Cornwallis Island, Canada (~75 N 95 W), during summer 2010 using temporal indicators of diet including stomach content, and carbon (δ13C) and nitrogen (δ15N) stable isotopes of liver and muscle. Foraging at the time of capture reflected sympagic and epi-benthic habitats indicated by the prevalence of cyclopoid and harpacticoid copepods in stomachs, whereas stable isotope data, which provide an estimate of feeding over a longer period, indicated pelagic prey as important. Prey selection of juveniles differed from adults based on stable isotopes, while large adults showed the most separation based on stomach contents, suggesting size-related diet shifts. Compared to studies near Resolute in the 1970s, 1980s, and 1990s, growth and pre-spawning gonadal conditions of Arctic cod have not changed. © 2013 Springer-Verlag Berlin Heidelberg. Text Arctic cod Arctic Boreogadus saida Cornwallis Island Copepods University of Windsor, Ontario: Scholarship at UWindsor Arctic Canada Cornwallis ENVELOPE(-54.464,-54.464,-61.072,-61.072) Allen Bay ENVELOPE(-36.533,-36.533,-54.183,-54.183) Cornwallis Island ENVELOPE(-95.001,-95.001,75.135,75.135) Marine Biology 160 11 2993 3004 |
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Open Polar |
collection |
University of Windsor, Ontario: Scholarship at UWindsor |
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ftunivwindsor |
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unknown |
description |
Arctic cod (Boreogadus saida) is a schooling fish providing a critical link between lower and upper trophic levels in the Arctic. This study examined foraging of Arctic cod collected from Allen Bay, Cornwallis Island, Canada (~75 N 95 W), during summer 2010 using temporal indicators of diet including stomach content, and carbon (δ13C) and nitrogen (δ15N) stable isotopes of liver and muscle. Foraging at the time of capture reflected sympagic and epi-benthic habitats indicated by the prevalence of cyclopoid and harpacticoid copepods in stomachs, whereas stable isotope data, which provide an estimate of feeding over a longer period, indicated pelagic prey as important. Prey selection of juveniles differed from adults based on stable isotopes, while large adults showed the most separation based on stomach contents, suggesting size-related diet shifts. Compared to studies near Resolute in the 1970s, 1980s, and 1990s, growth and pre-spawning gonadal conditions of Arctic cod have not changed. © 2013 Springer-Verlag Berlin Heidelberg. |
format |
Text |
author |
Matley, Jordan K. Fisk, Aaron T. Dick, Terry A. |
spellingShingle |
Matley, Jordan K. Fisk, Aaron T. Dick, Terry A. The foraging ecology of Arctic cod (Boreogadus saida) during open water (July-August) in Allen Bay, Arctic Canada |
author_facet |
Matley, Jordan K. Fisk, Aaron T. Dick, Terry A. |
author_sort |
Matley, Jordan K. |
title |
The foraging ecology of Arctic cod (Boreogadus saida) during open water (July-August) in Allen Bay, Arctic Canada |
title_short |
The foraging ecology of Arctic cod (Boreogadus saida) during open water (July-August) in Allen Bay, Arctic Canada |
title_full |
The foraging ecology of Arctic cod (Boreogadus saida) during open water (July-August) in Allen Bay, Arctic Canada |
title_fullStr |
The foraging ecology of Arctic cod (Boreogadus saida) during open water (July-August) in Allen Bay, Arctic Canada |
title_full_unstemmed |
The foraging ecology of Arctic cod (Boreogadus saida) during open water (July-August) in Allen Bay, Arctic Canada |
title_sort |
foraging ecology of arctic cod (boreogadus saida) during open water (july-august) in allen bay, arctic canada |
publisher |
Scholarship at UWindsor |
publishDate |
2013 |
url |
https://scholar.uwindsor.ca/glierpub/371 https://doi.org/10.1007/s00227-013-2289-2 |
long_lat |
ENVELOPE(-54.464,-54.464,-61.072,-61.072) ENVELOPE(-36.533,-36.533,-54.183,-54.183) ENVELOPE(-95.001,-95.001,75.135,75.135) |
geographic |
Arctic Canada Cornwallis Allen Bay Cornwallis Island |
geographic_facet |
Arctic Canada Cornwallis Allen Bay Cornwallis Island |
genre |
Arctic cod Arctic Boreogadus saida Cornwallis Island Copepods |
genre_facet |
Arctic cod Arctic Boreogadus saida Cornwallis Island Copepods |
op_source |
Great Lakes Institute for Environmental Research Publications |
op_relation |
https://scholar.uwindsor.ca/glierpub/371 doi:10.1007/s00227-013-2289-2 https://doi.org/10.1007/s00227-013-2289-2 |
op_doi |
https://doi.org/10.1007/s00227-013-2289-2 |
container_title |
Marine Biology |
container_volume |
160 |
container_issue |
11 |
container_start_page |
2993 |
op_container_end_page |
3004 |
_version_ |
1768381064112242688 |