The relationship between pink salmon biomass and the body condition of short-tailed shearwaters in the Bering Sea: can fish compete with seabirds?
Seabirds and large fishes are important top predators in marine ecosystems, but few studies have explored the potential for competition between these groups. This study investigates the relationship between an observed biennial change of pink salmon ( Oncorhynchus gorbuscha ) biomass in the central...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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2011
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Online Access: | http://dx.doi.org/10.1098/rspb.2010.2345 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2010.2345 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2010.2345 |
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crroyalsociety:10.1098/rspb.2010.2345 2024-06-23T07:51:45+00:00 The relationship between pink salmon biomass and the body condition of short-tailed shearwaters in the Bering Sea: can fish compete with seabirds? Toge, Kanako Yamashita, Rei Kazama, Kentaro Fukuwaka, Masaaki Yamamura, Orio Watanuki, Yutaka 2011 http://dx.doi.org/10.1098/rspb.2010.2345 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2010.2345 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2010.2345 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 278, issue 1718, page 2584-2590 ISSN 0962-8452 1471-2954 journal-article 2011 crroyalsociety https://doi.org/10.1098/rspb.2010.2345 2024-06-10T04:15:15Z Seabirds and large fishes are important top predators in marine ecosystems, but few studies have explored the potential for competition between these groups. This study investigates the relationship between an observed biennial change of pink salmon ( Oncorhynchus gorbuscha ) biomass in the central Bering Sea (23 times greater in odd-numbered than in even-numbered years) and the body condition and diet of the short-tailed shearwater ( Puffinus tenuirostris ) that spends the post-breeding season there. Samples were collected with research gill nets over seven summers. Both species feed on krill, small fishes and squid. Although the mean pink salmon catch per unit effort (in mass) over the study region was not related significantly with shearwater's stomach content mass or prey composition, the pink salmon biomass showed a negative and significant relationship with the shearwater's body mass and liver mass (proxies of energy reserve). We interpret these results as evidence that fishes can negatively affect mean prey intake of seabirds if they feed on a shared prey in the pelagic ecosystem. Article in Journal/Newspaper Bering Sea Oncorhynchus gorbuscha Pink salmon Puffinus tenuirostris The Royal Society Bering Sea Proceedings of the Royal Society B: Biological Sciences 278 1718 2584 2590 |
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Open Polar |
collection |
The Royal Society |
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crroyalsociety |
language |
English |
description |
Seabirds and large fishes are important top predators in marine ecosystems, but few studies have explored the potential for competition between these groups. This study investigates the relationship between an observed biennial change of pink salmon ( Oncorhynchus gorbuscha ) biomass in the central Bering Sea (23 times greater in odd-numbered than in even-numbered years) and the body condition and diet of the short-tailed shearwater ( Puffinus tenuirostris ) that spends the post-breeding season there. Samples were collected with research gill nets over seven summers. Both species feed on krill, small fishes and squid. Although the mean pink salmon catch per unit effort (in mass) over the study region was not related significantly with shearwater's stomach content mass or prey composition, the pink salmon biomass showed a negative and significant relationship with the shearwater's body mass and liver mass (proxies of energy reserve). We interpret these results as evidence that fishes can negatively affect mean prey intake of seabirds if they feed on a shared prey in the pelagic ecosystem. |
format |
Article in Journal/Newspaper |
author |
Toge, Kanako Yamashita, Rei Kazama, Kentaro Fukuwaka, Masaaki Yamamura, Orio Watanuki, Yutaka |
spellingShingle |
Toge, Kanako Yamashita, Rei Kazama, Kentaro Fukuwaka, Masaaki Yamamura, Orio Watanuki, Yutaka The relationship between pink salmon biomass and the body condition of short-tailed shearwaters in the Bering Sea: can fish compete with seabirds? |
author_facet |
Toge, Kanako Yamashita, Rei Kazama, Kentaro Fukuwaka, Masaaki Yamamura, Orio Watanuki, Yutaka |
author_sort |
Toge, Kanako |
title |
The relationship between pink salmon biomass and the body condition of short-tailed shearwaters in the Bering Sea: can fish compete with seabirds? |
title_short |
The relationship between pink salmon biomass and the body condition of short-tailed shearwaters in the Bering Sea: can fish compete with seabirds? |
title_full |
The relationship between pink salmon biomass and the body condition of short-tailed shearwaters in the Bering Sea: can fish compete with seabirds? |
title_fullStr |
The relationship between pink salmon biomass and the body condition of short-tailed shearwaters in the Bering Sea: can fish compete with seabirds? |
title_full_unstemmed |
The relationship between pink salmon biomass and the body condition of short-tailed shearwaters in the Bering Sea: can fish compete with seabirds? |
title_sort |
relationship between pink salmon biomass and the body condition of short-tailed shearwaters in the bering sea: can fish compete with seabirds? |
publisher |
The Royal Society |
publishDate |
2011 |
url |
http://dx.doi.org/10.1098/rspb.2010.2345 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2010.2345 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2010.2345 |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea Oncorhynchus gorbuscha Pink salmon Puffinus tenuirostris |
genre_facet |
Bering Sea Oncorhynchus gorbuscha Pink salmon Puffinus tenuirostris |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 278, issue 1718, page 2584-2590 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2010.2345 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
278 |
container_issue |
1718 |
container_start_page |
2584 |
op_container_end_page |
2590 |
_version_ |
1802642875032272896 |