On the interaction of turbulent flow and feeding behaviour of juvenile Atlantic Salmon ( Salmo salar)
Anthropogenic activities can dramatically modify the riverine habitat of juvenile Atlantic salmon ( Salmo salar ). In the perspective of protecting and restoring the fluvial habitat, bioenergetic models are often used to estimate fish habitat quality. These models determine the habitat quality as th...
Published in: | Journal of Fish Biology |
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Online Access: | http://dx.doi.org/10.1111/j.1095-8649.2003.0216l.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2003.0216l.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2003.0216l.x |
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crwiley:10.1111/j.1095-8649.2003.0216l.x 2024-06-02T08:03:30+00:00 On the interaction of turbulent flow and feeding behaviour of juvenile Atlantic Salmon ( Salmo salar) Enders, E. C. Buffin‐Bélanger, T. Boisclair, D. Roy, A. G. 2003 http://dx.doi.org/10.1111/j.1095-8649.2003.0216l.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2003.0216l.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2003.0216l.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 63, issue s1, page 231-231 ISSN 0022-1112 1095-8649 journal-article 2003 crwiley https://doi.org/10.1111/j.1095-8649.2003.0216l.x 2024-05-03T11:18:06Z Anthropogenic activities can dramatically modify the riverine habitat of juvenile Atlantic salmon ( Salmo salar ). In the perspective of protecting and restoring the fluvial habitat, bioenergetic models are often used to estimate fish habitat quality. These models determine the habitat quality as the ratio between the energetic gains (food) and costs (growth, metabolism) of a fish. The energetic costs of swimming in a river are generally estimated using the average flow velocity without consideration of the effect of turbulence. Juvenile Atlantic salmon (JAS) live in rivers characterized by intense velocity fluctuations, which are often described as a succession of high‐ and low‐speed flow regions. These flow structures are likely to affect the JAS activity that consists of long periods of sit‐and‐wait at the top of a protuberant rock interrupted by short bursting motions to capture drifting food particles. To minimize the energetic costs, it is hypothesized that JAS use low‐speed flow regions to initiate and undertake their feeding motions. To improve bioenergetic modelling, this study aimed at analyzing the relation between turbulent flow structures and the feeding behaviour of JAS in a natural gravel‐bed river. We filmed eight JAS during 30 min with a submersible video camera while simultaneously measuring velocity fluctuations close to the fish in the St. Marguerite River, Quebec, Canada. Our results show that the proportion of time used for feeding motions decreases with increasing turbulent intensity and mean flow velocity; and that JAS do not seem to prefer low‐speed flow regions to initiate their feeding motions. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Canada Marguerite ENVELOPE(141.378,141.378,-66.787,-66.787) Marguerite River ENVELOPE(-109.929,-109.929,57.560,57.560) Journal of Fish Biology 63 231 231 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Anthropogenic activities can dramatically modify the riverine habitat of juvenile Atlantic salmon ( Salmo salar ). In the perspective of protecting and restoring the fluvial habitat, bioenergetic models are often used to estimate fish habitat quality. These models determine the habitat quality as the ratio between the energetic gains (food) and costs (growth, metabolism) of a fish. The energetic costs of swimming in a river are generally estimated using the average flow velocity without consideration of the effect of turbulence. Juvenile Atlantic salmon (JAS) live in rivers characterized by intense velocity fluctuations, which are often described as a succession of high‐ and low‐speed flow regions. These flow structures are likely to affect the JAS activity that consists of long periods of sit‐and‐wait at the top of a protuberant rock interrupted by short bursting motions to capture drifting food particles. To minimize the energetic costs, it is hypothesized that JAS use low‐speed flow regions to initiate and undertake their feeding motions. To improve bioenergetic modelling, this study aimed at analyzing the relation between turbulent flow structures and the feeding behaviour of JAS in a natural gravel‐bed river. We filmed eight JAS during 30 min with a submersible video camera while simultaneously measuring velocity fluctuations close to the fish in the St. Marguerite River, Quebec, Canada. Our results show that the proportion of time used for feeding motions decreases with increasing turbulent intensity and mean flow velocity; and that JAS do not seem to prefer low‐speed flow regions to initiate their feeding motions. |
format |
Article in Journal/Newspaper |
author |
Enders, E. C. Buffin‐Bélanger, T. Boisclair, D. Roy, A. G. |
spellingShingle |
Enders, E. C. Buffin‐Bélanger, T. Boisclair, D. Roy, A. G. On the interaction of turbulent flow and feeding behaviour of juvenile Atlantic Salmon ( Salmo salar) |
author_facet |
Enders, E. C. Buffin‐Bélanger, T. Boisclair, D. Roy, A. G. |
author_sort |
Enders, E. C. |
title |
On the interaction of turbulent flow and feeding behaviour of juvenile Atlantic Salmon ( Salmo salar) |
title_short |
On the interaction of turbulent flow and feeding behaviour of juvenile Atlantic Salmon ( Salmo salar) |
title_full |
On the interaction of turbulent flow and feeding behaviour of juvenile Atlantic Salmon ( Salmo salar) |
title_fullStr |
On the interaction of turbulent flow and feeding behaviour of juvenile Atlantic Salmon ( Salmo salar) |
title_full_unstemmed |
On the interaction of turbulent flow and feeding behaviour of juvenile Atlantic Salmon ( Salmo salar) |
title_sort |
on the interaction of turbulent flow and feeding behaviour of juvenile atlantic salmon ( salmo salar) |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.1111/j.1095-8649.2003.0216l.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2003.0216l.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2003.0216l.x |
long_lat |
ENVELOPE(141.378,141.378,-66.787,-66.787) ENVELOPE(-109.929,-109.929,57.560,57.560) |
geographic |
Canada Marguerite Marguerite River |
geographic_facet |
Canada Marguerite Marguerite River |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 63, issue s1, page 231-231 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.2003.0216l.x |
container_title |
Journal of Fish Biology |
container_volume |
63 |
container_start_page |
231 |
op_container_end_page |
231 |
_version_ |
1800748035816292352 |