Is boldness towards predators related to growth rate in naïve captive-reared Arctic char ( Salvelinus alpinus )?
Previous studies have shown that the antipredator responsiveness of fish degenerates through generations in captive breeding. However, detailed knowledge of the underlying mechanism is still largely lacking. We tested the hypothesis that hatchery fish supposedly selected for faster growth in the hat...
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Online Access: | http://dx.doi.org/10.1139/f07-041 http://www.nrcresearchpress.com/doi/pdf/10.1139/f07-041 |
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crcansciencepubl:10.1139/f07-041 2023-12-17T10:24:48+01:00 Is boldness towards predators related to growth rate in naïve captive-reared Arctic char ( Salvelinus alpinus )? Laakkonen, Mika VM Hirvonen, Heikki 2007 http://dx.doi.org/10.1139/f07-041 http://www.nrcresearchpress.com/doi/pdf/10.1139/f07-041 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 64, issue 4, page 665-671 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2007 crcansciencepubl https://doi.org/10.1139/f07-041 2023-11-19T13:38:35Z Previous studies have shown that the antipredator responsiveness of fish degenerates through generations in captive breeding. However, detailed knowledge of the underlying mechanism is still largely lacking. We tested the hypothesis that hatchery fish supposedly selected for faster growth in the hatchery environment are bolder towards predators than their slower-growing conspecifics. This was examined by comparing the antipredator behavior of predator- naïve fast- and slow-growing individuals of a captive-bred Arctic char (Salvelinus alpinus) population to chemical cues from natural predators burbot (Lota lota) and pikeperch (Sander lucioperca). As behavioral responses depended on char body size, we compared boldness towards predators of size-matched fast- and slow-growing char. We found no differences in four behavioral antipredator traits between size-matched groups of fast- and slow-growing char. According to these results, boldness to predator cues is not related to individual growth rate in captive-bred Arctic char. Article in Journal/Newspaper Arctic Burbot Lota lota Salvelinus alpinus lota Canadian Science Publishing (via Crossref) Arctic Canadian Journal of Fisheries and Aquatic Sciences 64 4 665 671 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Laakkonen, Mika VM Hirvonen, Heikki Is boldness towards predators related to growth rate in naïve captive-reared Arctic char ( Salvelinus alpinus )? |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Previous studies have shown that the antipredator responsiveness of fish degenerates through generations in captive breeding. However, detailed knowledge of the underlying mechanism is still largely lacking. We tested the hypothesis that hatchery fish supposedly selected for faster growth in the hatchery environment are bolder towards predators than their slower-growing conspecifics. This was examined by comparing the antipredator behavior of predator- naïve fast- and slow-growing individuals of a captive-bred Arctic char (Salvelinus alpinus) population to chemical cues from natural predators burbot (Lota lota) and pikeperch (Sander lucioperca). As behavioral responses depended on char body size, we compared boldness towards predators of size-matched fast- and slow-growing char. We found no differences in four behavioral antipredator traits between size-matched groups of fast- and slow-growing char. According to these results, boldness to predator cues is not related to individual growth rate in captive-bred Arctic char. |
format |
Article in Journal/Newspaper |
author |
Laakkonen, Mika VM Hirvonen, Heikki |
author_facet |
Laakkonen, Mika VM Hirvonen, Heikki |
author_sort |
Laakkonen, Mika VM |
title |
Is boldness towards predators related to growth rate in naïve captive-reared Arctic char ( Salvelinus alpinus )? |
title_short |
Is boldness towards predators related to growth rate in naïve captive-reared Arctic char ( Salvelinus alpinus )? |
title_full |
Is boldness towards predators related to growth rate in naïve captive-reared Arctic char ( Salvelinus alpinus )? |
title_fullStr |
Is boldness towards predators related to growth rate in naïve captive-reared Arctic char ( Salvelinus alpinus )? |
title_full_unstemmed |
Is boldness towards predators related to growth rate in naïve captive-reared Arctic char ( Salvelinus alpinus )? |
title_sort |
is boldness towards predators related to growth rate in naïve captive-reared arctic char ( salvelinus alpinus )? |
publisher |
Canadian Science Publishing |
publishDate |
2007 |
url |
http://dx.doi.org/10.1139/f07-041 http://www.nrcresearchpress.com/doi/pdf/10.1139/f07-041 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Burbot Lota lota Salvelinus alpinus lota |
genre_facet |
Arctic Burbot Lota lota Salvelinus alpinus lota |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 64, issue 4, page 665-671 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f07-041 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
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64 |
container_issue |
4 |
container_start_page |
665 |
op_container_end_page |
671 |
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1785570285138739200 |