Title |
Extensive feeding on sockeye salmon Oncorhynchus nerka smolts by bull trout Salvelinus confluentus during initial outmigration into a small, unregulated and inland British Columbia river
|
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Published in |
Journal of Fish Biology, December 2014
|
DOI | 10.1111/jfb.12567 |
Pubmed ID | |
Authors |
N. B. Furey, S. G. Hinch, A. G. Lotto, D. A. Beauchamp |
Abstract |
Stomach contents were collected and analysed from 22 bull trout Salvelinus confluentus at the edge of the Chilko Lake and Chilko River in British Columbia, Canada, during spring outmigration of sockeye salmon Oncorhynchus nerka smolts. Twenty of the 22 (>90%) stomachs contained prey items, virtually all identifiable prey items were outmigrant O. nerka smolts and stomach contents represented a large portion (0·0-12·6%) of estimated S. confluentus mass. The results demonstrate nearly exclusive and intense feeding by S. confluentus on outmigrant smolts, and support recent telemetry observations of high disappearance rates of O. nerka smolts leaving large natural lake systems prior to entering high-order unregulated river systems. |
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Geographical breakdown
Country | Count | As % |
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United Kingdom | 2 | 33% |
Papua New Guinea | 1 | 17% |
Canada | 1 | 17% |
Unknown | 2 | 33% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 3 | 50% |
Scientists | 2 | 33% |
Science communicators (journalists, bloggers, editors) | 1 | 17% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Canada | 4 | 8% |
India | 1 | 2% |
Unknown | 45 | 90% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Master | 11 | 22% |
Researcher | 11 | 22% |
Student > Bachelor | 7 | 14% |
Student > Ph. D. Student | 6 | 12% |
Other | 5 | 10% |
Other | 3 | 6% |
Unknown | 7 | 14% |
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Environmental Science | 14 | 28% |
Veterinary Science and Veterinary Medicine | 1 | 2% |
Social Sciences | 1 | 2% |
Unknown | 7 | 14% |