Behavioural strategies for species co‐existence during environmental extremes: competition between trout and salmon parr during dewatering
Competition between species of animals can be predicted to be intense under extreme environmental conditions during which niche overlap increases. Fluvial aquatic systems fluctuate naturally across a broad range of time‐scales. Land management activities impose further extreme fluctuations, particul...
Published in: | Journal of Fish Biology |
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crwiley:10.1111/j.1095-8649.2003.216ak.x 2024-06-02T08:03:40+00:00 Behavioural strategies for species co‐existence during environmental extremes: competition between trout and salmon parr during dewatering Stradmeyer, L. Höjesjö, J. Armstrong, J. Griffiths, S. 2003 http://dx.doi.org/10.1111/j.1095-8649.2003.216ak.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2003.216ak.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2003.216ak.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 63, issue s1, page 242-242 ISSN 0022-1112 1095-8649 journal-article 2003 crwiley https://doi.org/10.1111/j.1095-8649.2003.216ak.x 2024-05-03T11:16:48Z Competition between species of animals can be predicted to be intense under extreme environmental conditions during which niche overlap increases. Fluvial aquatic systems fluctuate naturally across a broad range of time‐scales. Land management activities impose further extreme fluctuations, particularly when water is abstracted for irrigation during summer. This study focused on the interaction between Atlantic salmon and brown trout parr during acute dewatering events. Brown trout are known to compete strongly for pool habitat whereas salmon can coexist by using riffle areas during normal flows. It is not known, however, how competition between the species affects their behavioural responses to extreme low flows when riffle areas decrease. Replicated groups of salmon were held in allopatry and sympatry with trout in sections of a large indoor stream, each of which was landscaped into riffles and pools. Space use and behaviours of the fish were recorded by direct visual observations and a network of Passive Integrated Transponder detectors. Here we report the response of the fish to dewatering and consider the system as a model for natural and forced responses of communities to environmental extremes. Article in Journal/Newspaper Atlantic salmon Wiley Online Library Journal of Fish Biology 63 s1 242 242 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Competition between species of animals can be predicted to be intense under extreme environmental conditions during which niche overlap increases. Fluvial aquatic systems fluctuate naturally across a broad range of time‐scales. Land management activities impose further extreme fluctuations, particularly when water is abstracted for irrigation during summer. This study focused on the interaction between Atlantic salmon and brown trout parr during acute dewatering events. Brown trout are known to compete strongly for pool habitat whereas salmon can coexist by using riffle areas during normal flows. It is not known, however, how competition between the species affects their behavioural responses to extreme low flows when riffle areas decrease. Replicated groups of salmon were held in allopatry and sympatry with trout in sections of a large indoor stream, each of which was landscaped into riffles and pools. Space use and behaviours of the fish were recorded by direct visual observations and a network of Passive Integrated Transponder detectors. Here we report the response of the fish to dewatering and consider the system as a model for natural and forced responses of communities to environmental extremes. |
format |
Article in Journal/Newspaper |
author |
Stradmeyer, L. Höjesjö, J. Armstrong, J. Griffiths, S. |
spellingShingle |
Stradmeyer, L. Höjesjö, J. Armstrong, J. Griffiths, S. Behavioural strategies for species co‐existence during environmental extremes: competition between trout and salmon parr during dewatering |
author_facet |
Stradmeyer, L. Höjesjö, J. Armstrong, J. Griffiths, S. |
author_sort |
Stradmeyer, L. |
title |
Behavioural strategies for species co‐existence during environmental extremes: competition between trout and salmon parr during dewatering |
title_short |
Behavioural strategies for species co‐existence during environmental extremes: competition between trout and salmon parr during dewatering |
title_full |
Behavioural strategies for species co‐existence during environmental extremes: competition between trout and salmon parr during dewatering |
title_fullStr |
Behavioural strategies for species co‐existence during environmental extremes: competition between trout and salmon parr during dewatering |
title_full_unstemmed |
Behavioural strategies for species co‐existence during environmental extremes: competition between trout and salmon parr during dewatering |
title_sort |
behavioural strategies for species co‐existence during environmental extremes: competition between trout and salmon parr during dewatering |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.1111/j.1095-8649.2003.216ak.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2003.216ak.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2003.216ak.x |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Journal of Fish Biology volume 63, issue s1, page 242-242 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.2003.216ak.x |
container_title |
Journal of Fish Biology |
container_volume |
63 |
container_issue |
s1 |
container_start_page |
242 |
op_container_end_page |
242 |
_version_ |
1800748270305148928 |