Seabird numbers and prey consumption in the North Atlantic
Abstract We compared seasonal composition, abundance, and biomass of seabirds between the Northeast (ICES region) and Northwest (NAFO region) Atlantic fisheries regions to identify differences in community assemblage and prey consumption. Seabirds were more abundant in the Northwest Atlantic, but bi...
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Oxford University Press (OUP)
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croxfordunivpr:10.1016/j.icesjms.2006.04.004 2024-04-07T07:46:03+00:00 Seabird numbers and prey consumption in the North Atlantic Barrett, Robert T. Chapdelaine, Gilles Anker-Nilssen, Tycho Mosbech, Anders Montevecchi, William A. Reid, James B. Veit, Richard R. 2006 http://dx.doi.org/10.1016/j.icesjms.2006.04.004 http://academic.oup.com/icesjms/article-pdf/63/6/1145/29125855/63-6-1145.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 63, issue 6, page 1145-1158 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2006 croxfordunivpr https://doi.org/10.1016/j.icesjms.2006.04.004 2024-03-08T03:06:29Z Abstract We compared seasonal composition, abundance, and biomass of seabirds between the Northeast (ICES region) and Northwest (NAFO region) Atlantic fisheries regions to identify differences in community assemblage and prey consumption. Seabirds were more abundant in the Northwest Atlantic, but biomass was greater in the Northeast. This disparity resulted from enormous numbers of little auks Alle alle breeding in West Greenland and of Leach's storm-petrels Oceanodroma leucorhoa breeding in Newfoundland, plus large numbers of non-breeding shearwaters Puffinus spp. entering southern NAFO areas in summer. The Northeast Atlantic communities were dominated numerically by northern fulmars Fulmarus glacialis, large auks Uria spp., and the Atlantic puffin Fratercula arctica. Seabirds occupying the North Atlantic consume approximately 11 × 106 t of food annually. Overall consumption rates peak during summer as a result of increased breeding activity and seasonal movements of birds into the North Atlantic. Because of the greater biomass of birds in the northeast, consumption (mainly by piscivores) in ICES areas was approximately 20% higher than that in NAFO areas, where planktivores dominate. NAFO areas had, however, a much greater consumption rate per unit area than ICES areas. Comparative studies such as these could prove informative in assessing large predator responses to the influence of fishing and ocean-scale climate change. Article in Journal/Newspaper Alle alle Atlantic puffin fratercula Fratercula arctica Fulmarus glacialis Greenland Newfoundland North Atlantic Northeast Atlantic Northwest Atlantic Oceanodroma leucorhoa uria Oxford University Press Greenland ICES Journal of Marine Science 63 6 1145 1158 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Barrett, Robert T. Chapdelaine, Gilles Anker-Nilssen, Tycho Mosbech, Anders Montevecchi, William A. Reid, James B. Veit, Richard R. Seabird numbers and prey consumption in the North Atlantic |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract We compared seasonal composition, abundance, and biomass of seabirds between the Northeast (ICES region) and Northwest (NAFO region) Atlantic fisheries regions to identify differences in community assemblage and prey consumption. Seabirds were more abundant in the Northwest Atlantic, but biomass was greater in the Northeast. This disparity resulted from enormous numbers of little auks Alle alle breeding in West Greenland and of Leach's storm-petrels Oceanodroma leucorhoa breeding in Newfoundland, plus large numbers of non-breeding shearwaters Puffinus spp. entering southern NAFO areas in summer. The Northeast Atlantic communities were dominated numerically by northern fulmars Fulmarus glacialis, large auks Uria spp., and the Atlantic puffin Fratercula arctica. Seabirds occupying the North Atlantic consume approximately 11 × 106 t of food annually. Overall consumption rates peak during summer as a result of increased breeding activity and seasonal movements of birds into the North Atlantic. Because of the greater biomass of birds in the northeast, consumption (mainly by piscivores) in ICES areas was approximately 20% higher than that in NAFO areas, where planktivores dominate. NAFO areas had, however, a much greater consumption rate per unit area than ICES areas. Comparative studies such as these could prove informative in assessing large predator responses to the influence of fishing and ocean-scale climate change. |
format |
Article in Journal/Newspaper |
author |
Barrett, Robert T. Chapdelaine, Gilles Anker-Nilssen, Tycho Mosbech, Anders Montevecchi, William A. Reid, James B. Veit, Richard R. |
author_facet |
Barrett, Robert T. Chapdelaine, Gilles Anker-Nilssen, Tycho Mosbech, Anders Montevecchi, William A. Reid, James B. Veit, Richard R. |
author_sort |
Barrett, Robert T. |
title |
Seabird numbers and prey consumption in the North Atlantic |
title_short |
Seabird numbers and prey consumption in the North Atlantic |
title_full |
Seabird numbers and prey consumption in the North Atlantic |
title_fullStr |
Seabird numbers and prey consumption in the North Atlantic |
title_full_unstemmed |
Seabird numbers and prey consumption in the North Atlantic |
title_sort |
seabird numbers and prey consumption in the north atlantic |
publisher |
Oxford University Press (OUP) |
publishDate |
2006 |
url |
http://dx.doi.org/10.1016/j.icesjms.2006.04.004 http://academic.oup.com/icesjms/article-pdf/63/6/1145/29125855/63-6-1145.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Alle alle Atlantic puffin fratercula Fratercula arctica Fulmarus glacialis Greenland Newfoundland North Atlantic Northeast Atlantic Northwest Atlantic Oceanodroma leucorhoa uria |
genre_facet |
Alle alle Atlantic puffin fratercula Fratercula arctica Fulmarus glacialis Greenland Newfoundland North Atlantic Northeast Atlantic Northwest Atlantic Oceanodroma leucorhoa uria |
op_source |
ICES Journal of Marine Science volume 63, issue 6, page 1145-1158 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1016/j.icesjms.2006.04.004 |
container_title |
ICES Journal of Marine Science |
container_volume |
63 |
container_issue |
6 |
container_start_page |
1145 |
op_container_end_page |
1158 |
_version_ |
1795662379539759104 |