Choosing where to feed: the influence of competition on feeding behaviour of cod, Gadus morhua L.
Groups of cod, Gadus morhua L, presented with two feeding patches with a food abundance ratio of 2:1, distributed themselves between the patches in a ratio of 2.5:1. This is slightly higher than the 2:1 ratio predicted by the ideal free distribution theory. Large differences were observed in competi...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Wiley
1992
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Online Access: | http://dx.doi.org/10.1111/j.1095-8649.1992.tb02674.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1992.tb02674.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1992.tb02674.x |
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crwiley:10.1111/j.1095-8649.1992.tb02674.x 2024-06-02T08:06:53+00:00 Choosing where to feed: the influence of competition on feeding behaviour of cod, Gadus morhua L. van Duren, L. A. Glass, C. W. 1992 http://dx.doi.org/10.1111/j.1095-8649.1992.tb02674.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1992.tb02674.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1992.tb02674.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 41, issue 3, page 463-471 ISSN 0022-1112 1095-8649 journal-article 1992 crwiley https://doi.org/10.1111/j.1095-8649.1992.tb02674.x 2024-05-03T10:35:07Z Groups of cod, Gadus morhua L, presented with two feeding patches with a food abundance ratio of 2:1, distributed themselves between the patches in a ratio of 2.5:1. This is slightly higher than the 2:1 ratio predicted by the ideal free distribution theory. Large differences were observed in competitive ability between individual fish. A strong correlation was found between feeding success of individuals and time spent in a feeding patch. The more successful competitors caught about 2.5 times as many food items in the rich patch as in the poor patch. The less successful competitors caught an equal amount of food in both patches. All competitors, however, spent significantly more time in the rich patch. These results suggest that hunting success is the most important factor in assessing patch quality. However, it is not the only parameter which cod use in deciding where to feed. Article in Journal/Newspaper Gadus morhua Wiley Online Library Journal of Fish Biology 41 3 463 471 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Groups of cod, Gadus morhua L, presented with two feeding patches with a food abundance ratio of 2:1, distributed themselves between the patches in a ratio of 2.5:1. This is slightly higher than the 2:1 ratio predicted by the ideal free distribution theory. Large differences were observed in competitive ability between individual fish. A strong correlation was found between feeding success of individuals and time spent in a feeding patch. The more successful competitors caught about 2.5 times as many food items in the rich patch as in the poor patch. The less successful competitors caught an equal amount of food in both patches. All competitors, however, spent significantly more time in the rich patch. These results suggest that hunting success is the most important factor in assessing patch quality. However, it is not the only parameter which cod use in deciding where to feed. |
format |
Article in Journal/Newspaper |
author |
van Duren, L. A. Glass, C. W. |
spellingShingle |
van Duren, L. A. Glass, C. W. Choosing where to feed: the influence of competition on feeding behaviour of cod, Gadus morhua L. |
author_facet |
van Duren, L. A. Glass, C. W. |
author_sort |
van Duren, L. A. |
title |
Choosing where to feed: the influence of competition on feeding behaviour of cod, Gadus morhua L. |
title_short |
Choosing where to feed: the influence of competition on feeding behaviour of cod, Gadus morhua L. |
title_full |
Choosing where to feed: the influence of competition on feeding behaviour of cod, Gadus morhua L. |
title_fullStr |
Choosing where to feed: the influence of competition on feeding behaviour of cod, Gadus morhua L. |
title_full_unstemmed |
Choosing where to feed: the influence of competition on feeding behaviour of cod, Gadus morhua L. |
title_sort |
choosing where to feed: the influence of competition on feeding behaviour of cod, gadus morhua l. |
publisher |
Wiley |
publishDate |
1992 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1992.tb02674.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1992.tb02674.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1992.tb02674.x |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Journal of Fish Biology volume 41, issue 3, page 463-471 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1992.tb02674.x |
container_title |
Journal of Fish Biology |
container_volume |
41 |
container_issue |
3 |
container_start_page |
463 |
op_container_end_page |
471 |
_version_ |
1800751878871449600 |