Regulation of hyperphagia in response to varying energy deficits in overwintering juvenile Atlantic salmon
Resident juvenile Atlantic salmon responded to a period of winter food restriction by subsequently increasing appetite when food again became available. This hyperphagy contributed to the restoration of an energy deficit (derived from a biometric estimation of body lipid reserves) incurred during th...
Published in: | Journal of Fish Biology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Wiley
1997
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Online Access: | http://dx.doi.org/10.1111/j.1095-8649.1997.tb01945.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1997.tb01945.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1997.tb01945.x |
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crwiley:10.1111/j.1095-8649.1997.tb01945.x 2024-06-02T08:03:28+00:00 Regulation of hyperphagia in response to varying energy deficits in overwintering juvenile Atlantic salmon Bull, C. D. Metcalfe, N. B. 1997 http://dx.doi.org/10.1111/j.1095-8649.1997.tb01945.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1997.tb01945.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1997.tb01945.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 50, issue 3, page 498-510 ISSN 0022-1112 1095-8649 journal-article 1997 crwiley https://doi.org/10.1111/j.1095-8649.1997.tb01945.x 2024-05-03T11:08:21Z Resident juvenile Atlantic salmon responded to a period of winter food restriction by subsequently increasing appetite when food again became available. This hyperphagy contributed to the restoration of an energy deficit (derived from a biometric estimation of body lipid reserves) incurred during the period of food restriction. The extent of this deficit influenced the duration of the hyperphagic response: those fish incurring the greatest fat losses maintained appetite longer than those with a smaller energy deficit. The initial feeding intensity of fish incurring a wide range of fat losses was found to be similar, indicating that fish were regulating the length as opposed to the intensity of the hyperphagic response in order to restore losses. The ecological implications of the results are discussed in relation to juvenile salmon overwintering strategies. Article in Journal/Newspaper Atlantic salmon Wiley Online Library Journal of Fish Biology 50 3 498 510 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Resident juvenile Atlantic salmon responded to a period of winter food restriction by subsequently increasing appetite when food again became available. This hyperphagy contributed to the restoration of an energy deficit (derived from a biometric estimation of body lipid reserves) incurred during the period of food restriction. The extent of this deficit influenced the duration of the hyperphagic response: those fish incurring the greatest fat losses maintained appetite longer than those with a smaller energy deficit. The initial feeding intensity of fish incurring a wide range of fat losses was found to be similar, indicating that fish were regulating the length as opposed to the intensity of the hyperphagic response in order to restore losses. The ecological implications of the results are discussed in relation to juvenile salmon overwintering strategies. |
format |
Article in Journal/Newspaper |
author |
Bull, C. D. Metcalfe, N. B. |
spellingShingle |
Bull, C. D. Metcalfe, N. B. Regulation of hyperphagia in response to varying energy deficits in overwintering juvenile Atlantic salmon |
author_facet |
Bull, C. D. Metcalfe, N. B. |
author_sort |
Bull, C. D. |
title |
Regulation of hyperphagia in response to varying energy deficits in overwintering juvenile Atlantic salmon |
title_short |
Regulation of hyperphagia in response to varying energy deficits in overwintering juvenile Atlantic salmon |
title_full |
Regulation of hyperphagia in response to varying energy deficits in overwintering juvenile Atlantic salmon |
title_fullStr |
Regulation of hyperphagia in response to varying energy deficits in overwintering juvenile Atlantic salmon |
title_full_unstemmed |
Regulation of hyperphagia in response to varying energy deficits in overwintering juvenile Atlantic salmon |
title_sort |
regulation of hyperphagia in response to varying energy deficits in overwintering juvenile atlantic salmon |
publisher |
Wiley |
publishDate |
1997 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1997.tb01945.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1997.tb01945.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1997.tb01945.x |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Journal of Fish Biology volume 50, issue 3, page 498-510 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1997.tb01945.x |
container_title |
Journal of Fish Biology |
container_volume |
50 |
container_issue |
3 |
container_start_page |
498 |
op_container_end_page |
510 |
_version_ |
1800747994067238912 |