Predation on Pacific herring ( Clupea pallasi) spawn by birds in Prince William Sound, Alaska
Abstract We examined bird diets in areas with Pacific herring ( Clupea pallasi ) spawn at northern Montague Island in Prince William Sound, Alaska. Diets of the five most abundant bird species consisted primarily of herring spawn. Using a bioenergetics model, we estimated that in spring 1994 the fiv...
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Language: | English |
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Online Access: | http://dx.doi.org/10.1046/j.1054-6006.2001.00038.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1054-6006.2001.00038.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1054-6006.2001.00038.x |
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crwiley:10.1046/j.1054-6006.2001.00038.x 2024-06-09T07:47:33+00:00 Predation on Pacific herring ( Clupea pallasi) spawn by birds in Prince William Sound, Alaska Bishop, Mary A. Green, S. Patrick 2001 http://dx.doi.org/10.1046/j.1054-6006.2001.00038.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1054-6006.2001.00038.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1054-6006.2001.00038.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Oceanography volume 10, issue s1, page 149-158 ISSN 1054-6006 1365-2419 journal-article 2001 crwiley https://doi.org/10.1046/j.1054-6006.2001.00038.x 2024-05-16T14:26:12Z Abstract We examined bird diets in areas with Pacific herring ( Clupea pallasi ) spawn at northern Montague Island in Prince William Sound, Alaska. Diets of the five most abundant bird species consisted primarily of herring spawn. Using a bioenergetics model, we estimated that in spring 1994 the five‐bird species ate 857.1 metric tons (mt), representing 31% of the estimated spawn deposition. The two most numerous consumers, glaucous‐winged gull ( Larus glaucescens ) and mew gull ( Larus canus ) consumed 26% and 3%, respectively, of the estimated spawn deposition. Surf scoters ( Melanitta perspicillata ), surfbirds ( Aphriza virgata ), and black turnstone ( Arenaria melanocephala ) together consumed 2% of the spawn deposition. In years with low spawn biomass, such as 1994, the number of herring larvae produced could be significantly affected by normal rates of avian predation. The high consumption by gulls, shorebirds, and surf scoters underscores the importance of herring spawn in the annual cycle of these species and requires further investigation. Article in Journal/Newspaper Larus canus Alaska Wiley Online Library Montague ENVELOPE(-136.021,-136.021,61.783,61.783) Pacific Fisheries Oceanography 10 s1 149 158 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract We examined bird diets in areas with Pacific herring ( Clupea pallasi ) spawn at northern Montague Island in Prince William Sound, Alaska. Diets of the five most abundant bird species consisted primarily of herring spawn. Using a bioenergetics model, we estimated that in spring 1994 the five‐bird species ate 857.1 metric tons (mt), representing 31% of the estimated spawn deposition. The two most numerous consumers, glaucous‐winged gull ( Larus glaucescens ) and mew gull ( Larus canus ) consumed 26% and 3%, respectively, of the estimated spawn deposition. Surf scoters ( Melanitta perspicillata ), surfbirds ( Aphriza virgata ), and black turnstone ( Arenaria melanocephala ) together consumed 2% of the spawn deposition. In years with low spawn biomass, such as 1994, the number of herring larvae produced could be significantly affected by normal rates of avian predation. The high consumption by gulls, shorebirds, and surf scoters underscores the importance of herring spawn in the annual cycle of these species and requires further investigation. |
format |
Article in Journal/Newspaper |
author |
Bishop, Mary A. Green, S. Patrick |
spellingShingle |
Bishop, Mary A. Green, S. Patrick Predation on Pacific herring ( Clupea pallasi) spawn by birds in Prince William Sound, Alaska |
author_facet |
Bishop, Mary A. Green, S. Patrick |
author_sort |
Bishop, Mary A. |
title |
Predation on Pacific herring ( Clupea pallasi) spawn by birds in Prince William Sound, Alaska |
title_short |
Predation on Pacific herring ( Clupea pallasi) spawn by birds in Prince William Sound, Alaska |
title_full |
Predation on Pacific herring ( Clupea pallasi) spawn by birds in Prince William Sound, Alaska |
title_fullStr |
Predation on Pacific herring ( Clupea pallasi) spawn by birds in Prince William Sound, Alaska |
title_full_unstemmed |
Predation on Pacific herring ( Clupea pallasi) spawn by birds in Prince William Sound, Alaska |
title_sort |
predation on pacific herring ( clupea pallasi) spawn by birds in prince william sound, alaska |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1046/j.1054-6006.2001.00038.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1054-6006.2001.00038.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1054-6006.2001.00038.x |
long_lat |
ENVELOPE(-136.021,-136.021,61.783,61.783) |
geographic |
Montague Pacific |
geographic_facet |
Montague Pacific |
genre |
Larus canus Alaska |
genre_facet |
Larus canus Alaska |
op_source |
Fisheries Oceanography volume 10, issue s1, page 149-158 ISSN 1054-6006 1365-2419 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1054-6006.2001.00038.x |
container_title |
Fisheries Oceanography |
container_volume |
10 |
container_issue |
s1 |
container_start_page |
149 |
op_container_end_page |
158 |
_version_ |
1801378721220788224 |