Feeding of Greenland halibut ( Reinhardtius hippoglossoides ) in the Canadian Beaufort Sea
Trophic patterns for Greenland Halibut are reported for the first time in the Canadian Beaufort Sea and Amundsen Gulf (n = 269). Samples were collected from 2012 to 2014 on the upper (300–500 m) and lower continental slope (750–1500 m) and were analyzed for stomach contents, stable isotopes ratios a...
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ftarchimer:oai:archimer.ifremer.fr:54611 2023-05-15T13:22:56+02:00 Feeding of Greenland halibut ( Reinhardtius hippoglossoides ) in the Canadian Beaufort Sea Giraldo, Carolina Stasko, Ashley Walkusz, Wojciech Majewski, Andrew Rosenberg, Bruno Power, Michael Swanson, Heidi Reist, James D. 2018-07 application/pdf https://archimer.ifremer.fr/doc/00435/54611/55992.pdf https://doi.org/10.1016/j.jmarsys.2018.03.009 https://archimer.ifremer.fr/doc/00435/54611/ eng eng Elsevier Science Bv https://archimer.ifremer.fr/doc/00435/54611/55992.pdf doi:10.1016/j.jmarsys.2018.03.009 https://archimer.ifremer.fr/doc/00435/54611/ 2018 Elsevier B.V. All rights reserved. info:eu-repo/semantics/openAccess restricted use Journal Of Marine Systems (0924-7963) (Elsevier Science Bv), 2018-07 , Vol. 183 , P. 32-41 Benthic-pelagic coupling Trophic niche Biomarkers Arctic text Publication info:eu-repo/semantics/article 2018 ftarchimer https://doi.org/10.1016/j.jmarsys.2018.03.009 2021-09-23T20:30:49Z Trophic patterns for Greenland Halibut are reported for the first time in the Canadian Beaufort Sea and Amundsen Gulf (n = 269). Samples were collected from 2012 to 2014 on the upper (300–500 m) and lower continental slope (750–1500 m) and were analyzed for stomach contents, stable isotopes ratios and fatty acids (FA). Stomach contents indicated that Arctic Cod, Boreogadus saida, was the main prey ingested on the upper slope (50–94% of total biomass) whereas Gelatinous Snailfish (Liparis fabricii) and Zoarcids (Lycodes spp.) dominated diets on the lower slope (17–62% of total biomass). Stable isotope mixing models and FA analyses also identified benthopelagic fishes (i.e., Liparis spp., B. saida) as key prey and highlighted large dietary overlap among years and between the two depth categories. Greenland Halibut were characterized by relatively wide δ13C and narrow δ15N ranges that suggested use of both pelagic and benthic energy sources and a piscivorous diet. Calanus-type markers such as 20:1n9 dominated the FA (>20% of total FA) andemphasized the importance of pelagic-derived material in the diet. The contribution of pelagic and benthic-derived matter in the diet suggests that Greenland Halibut play a major role in the benthic-pelagic coupling for deep water communities (up to 1500 m) in the Canadian Beaufort Sea. Article in Journal/Newspaper Amundsen Gulf Arctic cod Arctic Beaufort Sea Boreogadus saida Greenland Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Arctic Greenland Journal of Marine Systems 183 32 41 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Benthic-pelagic coupling Trophic niche Biomarkers Arctic |
spellingShingle |
Benthic-pelagic coupling Trophic niche Biomarkers Arctic Giraldo, Carolina Stasko, Ashley Walkusz, Wojciech Majewski, Andrew Rosenberg, Bruno Power, Michael Swanson, Heidi Reist, James D. Feeding of Greenland halibut ( Reinhardtius hippoglossoides ) in the Canadian Beaufort Sea |
topic_facet |
Benthic-pelagic coupling Trophic niche Biomarkers Arctic |
description |
Trophic patterns for Greenland Halibut are reported for the first time in the Canadian Beaufort Sea and Amundsen Gulf (n = 269). Samples were collected from 2012 to 2014 on the upper (300–500 m) and lower continental slope (750–1500 m) and were analyzed for stomach contents, stable isotopes ratios and fatty acids (FA). Stomach contents indicated that Arctic Cod, Boreogadus saida, was the main prey ingested on the upper slope (50–94% of total biomass) whereas Gelatinous Snailfish (Liparis fabricii) and Zoarcids (Lycodes spp.) dominated diets on the lower slope (17–62% of total biomass). Stable isotope mixing models and FA analyses also identified benthopelagic fishes (i.e., Liparis spp., B. saida) as key prey and highlighted large dietary overlap among years and between the two depth categories. Greenland Halibut were characterized by relatively wide δ13C and narrow δ15N ranges that suggested use of both pelagic and benthic energy sources and a piscivorous diet. Calanus-type markers such as 20:1n9 dominated the FA (>20% of total FA) andemphasized the importance of pelagic-derived material in the diet. The contribution of pelagic and benthic-derived matter in the diet suggests that Greenland Halibut play a major role in the benthic-pelagic coupling for deep water communities (up to 1500 m) in the Canadian Beaufort Sea. |
format |
Article in Journal/Newspaper |
author |
Giraldo, Carolina Stasko, Ashley Walkusz, Wojciech Majewski, Andrew Rosenberg, Bruno Power, Michael Swanson, Heidi Reist, James D. |
author_facet |
Giraldo, Carolina Stasko, Ashley Walkusz, Wojciech Majewski, Andrew Rosenberg, Bruno Power, Michael Swanson, Heidi Reist, James D. |
author_sort |
Giraldo, Carolina |
title |
Feeding of Greenland halibut ( Reinhardtius hippoglossoides ) in the Canadian Beaufort Sea |
title_short |
Feeding of Greenland halibut ( Reinhardtius hippoglossoides ) in the Canadian Beaufort Sea |
title_full |
Feeding of Greenland halibut ( Reinhardtius hippoglossoides ) in the Canadian Beaufort Sea |
title_fullStr |
Feeding of Greenland halibut ( Reinhardtius hippoglossoides ) in the Canadian Beaufort Sea |
title_full_unstemmed |
Feeding of Greenland halibut ( Reinhardtius hippoglossoides ) in the Canadian Beaufort Sea |
title_sort |
feeding of greenland halibut ( reinhardtius hippoglossoides ) in the canadian beaufort sea |
publisher |
Elsevier Science Bv |
publishDate |
2018 |
url |
https://archimer.ifremer.fr/doc/00435/54611/55992.pdf https://doi.org/10.1016/j.jmarsys.2018.03.009 https://archimer.ifremer.fr/doc/00435/54611/ |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Amundsen Gulf Arctic cod Arctic Beaufort Sea Boreogadus saida Greenland |
genre_facet |
Amundsen Gulf Arctic cod Arctic Beaufort Sea Boreogadus saida Greenland |
op_source |
Journal Of Marine Systems (0924-7963) (Elsevier Science Bv), 2018-07 , Vol. 183 , P. 32-41 |
op_relation |
https://archimer.ifremer.fr/doc/00435/54611/55992.pdf doi:10.1016/j.jmarsys.2018.03.009 https://archimer.ifremer.fr/doc/00435/54611/ |
op_rights |
2018 Elsevier B.V. All rights reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.jmarsys.2018.03.009 |
container_title |
Journal of Marine Systems |
container_volume |
183 |
container_start_page |
32 |
op_container_end_page |
41 |
_version_ |
1766367967986057216 |