Recent changes in the winter diet of murres ( Uria spp.) in coastal Newfoundland waters
We investigated the winter diet of murres (Uria spp.) in coastal Newfoundland waters in relation to environmental and ecological changes that have occurred in the Northwest Atlantic since the 1980s. We analyzed the contents of 371 stomachs (311 from Thick-billed Murres, Uria lomvia, and 60 from Comm...
Published in: | Canadian Journal of Zoology |
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Language: | English |
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2000
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Online Access: | http://dx.doi.org/10.1139/z99-221 http://www.nrcresearchpress.com/doi/pdf/10.1139/z99-221 |
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crcansciencepubl:10.1139/z99-221 2024-09-15T17:52:27+00:00 Recent changes in the winter diet of murres ( Uria spp.) in coastal Newfoundland waters Rowe, Sherrylynn Jones, Ian L Chardine, John W Elliot, Richard D Veitch, Brian G 2000 http://dx.doi.org/10.1139/z99-221 http://www.nrcresearchpress.com/doi/pdf/10.1139/z99-221 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 78, issue 3, page 495-500 ISSN 0008-4301 1480-3283 journal-article 2000 crcansciencepubl https://doi.org/10.1139/z99-221 2024-07-11T04:12:01Z We investigated the winter diet of murres (Uria spp.) in coastal Newfoundland waters in relation to environmental and ecological changes that have occurred in the Northwest Atlantic since the 1980s. We analyzed the contents of 371 stomachs (311 from Thick-billed Murres, Uria lomvia, and 60 from Common Murres, Uria aalge) of birds shot by hunters around the Newfoundland coast during the winters of 1996-1998. We observed that the frequency of empty stomachs was greater in our study than in a similar study conducted during 1984-1986. We found no difference in the proportion of fish in the diet between the 1980s and the 1990s, however, Arctic cod (Boreogadus saida; from 55 to 12%) and capelin (Mallotus villosus; from 28 to 6%) decreased in frequency of occurrence. The proportion of stomachs containing crustaceans and squid did not change between the 1980s and 1990s, but hyperiid amphipods (Parathemisto spp.) replaced euphausiids (Thysanoessa spp.) as the predominant crustacean. Changes in murre winter diet off the coast of Newfoundland corroborate other sources of information indicating that major changes in the distribution and biology of marine organisms occurred in the Northwest Atlantic during the 1990s. Article in Journal/Newspaper Arctic cod Boreogadus saida Newfoundland Northwest Atlantic Uria aalge Uria lomvia uria Canadian Science Publishing Canadian Journal of Zoology 78 3 495 500 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
We investigated the winter diet of murres (Uria spp.) in coastal Newfoundland waters in relation to environmental and ecological changes that have occurred in the Northwest Atlantic since the 1980s. We analyzed the contents of 371 stomachs (311 from Thick-billed Murres, Uria lomvia, and 60 from Common Murres, Uria aalge) of birds shot by hunters around the Newfoundland coast during the winters of 1996-1998. We observed that the frequency of empty stomachs was greater in our study than in a similar study conducted during 1984-1986. We found no difference in the proportion of fish in the diet between the 1980s and the 1990s, however, Arctic cod (Boreogadus saida; from 55 to 12%) and capelin (Mallotus villosus; from 28 to 6%) decreased in frequency of occurrence. The proportion of stomachs containing crustaceans and squid did not change between the 1980s and 1990s, but hyperiid amphipods (Parathemisto spp.) replaced euphausiids (Thysanoessa spp.) as the predominant crustacean. Changes in murre winter diet off the coast of Newfoundland corroborate other sources of information indicating that major changes in the distribution and biology of marine organisms occurred in the Northwest Atlantic during the 1990s. |
format |
Article in Journal/Newspaper |
author |
Rowe, Sherrylynn Jones, Ian L Chardine, John W Elliot, Richard D Veitch, Brian G |
spellingShingle |
Rowe, Sherrylynn Jones, Ian L Chardine, John W Elliot, Richard D Veitch, Brian G Recent changes in the winter diet of murres ( Uria spp.) in coastal Newfoundland waters |
author_facet |
Rowe, Sherrylynn Jones, Ian L Chardine, John W Elliot, Richard D Veitch, Brian G |
author_sort |
Rowe, Sherrylynn |
title |
Recent changes in the winter diet of murres ( Uria spp.) in coastal Newfoundland waters |
title_short |
Recent changes in the winter diet of murres ( Uria spp.) in coastal Newfoundland waters |
title_full |
Recent changes in the winter diet of murres ( Uria spp.) in coastal Newfoundland waters |
title_fullStr |
Recent changes in the winter diet of murres ( Uria spp.) in coastal Newfoundland waters |
title_full_unstemmed |
Recent changes in the winter diet of murres ( Uria spp.) in coastal Newfoundland waters |
title_sort |
recent changes in the winter diet of murres ( uria spp.) in coastal newfoundland waters |
publisher |
Canadian Science Publishing |
publishDate |
2000 |
url |
http://dx.doi.org/10.1139/z99-221 http://www.nrcresearchpress.com/doi/pdf/10.1139/z99-221 |
genre |
Arctic cod Boreogadus saida Newfoundland Northwest Atlantic Uria aalge Uria lomvia uria |
genre_facet |
Arctic cod Boreogadus saida Newfoundland Northwest Atlantic Uria aalge Uria lomvia uria |
op_source |
Canadian Journal of Zoology volume 78, issue 3, page 495-500 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z99-221 |
container_title |
Canadian Journal of Zoology |
container_volume |
78 |
container_issue |
3 |
container_start_page |
495 |
op_container_end_page |
500 |
_version_ |
1810294485605679104 |