Carbon flux to seabirds in waters with different mixing regimes in the southeastern Bering Sea
The southeastern Bering Sea is characterized by three mixing regimes, separated by fronts associated with the 50, 100, and 200 m isobaths. Phytoplankton to zooplankton transfer-rates are high in waters over the outer shelf and slope (seaward of the 100 m front) relative to transfer in waters over th...
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eScholarship, University of California
1982
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Online Access: | https://escholarship.org/uc/item/5d22f6js https://escholarship.org/content/qt5d22f6js/qt5d22f6js.pdf https://doi.org/10.1007/bf00397674 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt5d22f6js 2024-09-15T17:59:30+00:00 Carbon flux to seabirds in waters with different mixing regimes in the southeastern Bering Sea Schneider, D Hunt, GL 337 - 344 1982-05-01 application/pdf https://escholarship.org/uc/item/5d22f6js https://escholarship.org/content/qt5d22f6js/qt5d22f6js.pdf https://doi.org/10.1007/bf00397674 unknown eScholarship, University of California qt5d22f6js https://escholarship.org/uc/item/5d22f6js https://escholarship.org/content/qt5d22f6js/qt5d22f6js.pdf doi:10.1007/bf00397674 CC-BY Marine Biology, vol 67, iss 3 Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Marine Biology & Hydrobiology article 1982 ftcdlib https://doi.org/10.1007/bf00397674 2024-06-28T06:28:19Z The southeastern Bering Sea is characterized by three mixing regimes, separated by fronts associated with the 50, 100, and 200 m isobaths. Phytoplankton to zooplankton transfer-rates are high in waters over the outer shelf and slope (seaward of the 100 m front) relative to transfer in waters over the middle shelf (between the 50 and 100 m fronts). To see whether this difference is reflected at a higher trophic level, we computed carbon flux to the 11 commonest seabird species. Bird-density data (for the period 1975 through 1979) were combined with daily caloric requirement, which is an allometric function of body size in this endothermic group. Minimum transfer to seabirds over a 153 d period (April-August) was 30 mg C m-2 for the middle shelf and 48 mg C m-2 for outer shelf and slope waters. Trophic transfer to subsurface-feeding birds (shearwaters, murres and auklets) differed little between regions. In contrast, trophic transfer to surface-feeding birds (fulmars, petrels, and kittiwakes) in the outer shelf and slope waters was 3 times greater than in the waters of the middle shelf. Thus, for seabirds as a whole, pathways of energy transfer differed more between regions than did total carbon flux. © 1982 Springer-Verlag. Article in Journal/Newspaper Bering Sea University of California: eScholarship Marine Biology 67 3 337 344 |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Marine Biology & Hydrobiology |
spellingShingle |
Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Marine Biology & Hydrobiology Schneider, D Hunt, GL Carbon flux to seabirds in waters with different mixing regimes in the southeastern Bering Sea |
topic_facet |
Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Marine Biology & Hydrobiology |
description |
The southeastern Bering Sea is characterized by three mixing regimes, separated by fronts associated with the 50, 100, and 200 m isobaths. Phytoplankton to zooplankton transfer-rates are high in waters over the outer shelf and slope (seaward of the 100 m front) relative to transfer in waters over the middle shelf (between the 50 and 100 m fronts). To see whether this difference is reflected at a higher trophic level, we computed carbon flux to the 11 commonest seabird species. Bird-density data (for the period 1975 through 1979) were combined with daily caloric requirement, which is an allometric function of body size in this endothermic group. Minimum transfer to seabirds over a 153 d period (April-August) was 30 mg C m-2 for the middle shelf and 48 mg C m-2 for outer shelf and slope waters. Trophic transfer to subsurface-feeding birds (shearwaters, murres and auklets) differed little between regions. In contrast, trophic transfer to surface-feeding birds (fulmars, petrels, and kittiwakes) in the outer shelf and slope waters was 3 times greater than in the waters of the middle shelf. Thus, for seabirds as a whole, pathways of energy transfer differed more between regions than did total carbon flux. © 1982 Springer-Verlag. |
format |
Article in Journal/Newspaper |
author |
Schneider, D Hunt, GL |
author_facet |
Schneider, D Hunt, GL |
author_sort |
Schneider, D |
title |
Carbon flux to seabirds in waters with different mixing regimes in the southeastern Bering Sea |
title_short |
Carbon flux to seabirds in waters with different mixing regimes in the southeastern Bering Sea |
title_full |
Carbon flux to seabirds in waters with different mixing regimes in the southeastern Bering Sea |
title_fullStr |
Carbon flux to seabirds in waters with different mixing regimes in the southeastern Bering Sea |
title_full_unstemmed |
Carbon flux to seabirds in waters with different mixing regimes in the southeastern Bering Sea |
title_sort |
carbon flux to seabirds in waters with different mixing regimes in the southeastern bering sea |
publisher |
eScholarship, University of California |
publishDate |
1982 |
url |
https://escholarship.org/uc/item/5d22f6js https://escholarship.org/content/qt5d22f6js/qt5d22f6js.pdf https://doi.org/10.1007/bf00397674 |
op_coverage |
337 - 344 |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_source |
Marine Biology, vol 67, iss 3 |
op_relation |
qt5d22f6js https://escholarship.org/uc/item/5d22f6js https://escholarship.org/content/qt5d22f6js/qt5d22f6js.pdf doi:10.1007/bf00397674 |
op_rights |
CC-BY |
op_doi |
https://doi.org/10.1007/bf00397674 |
container_title |
Marine Biology |
container_volume |
67 |
container_issue |
3 |
container_start_page |
337 |
op_container_end_page |
344 |
_version_ |
1810436604843524096 |