Angling selects against active and stress-resilient phenotypes in rainbow trout
Angling selects against active and stress-resilient phenotypes in rainbow trout
复制标题
钓鱼选择虹鳟鱼的活跃和抗应激表型
DOI:
10.1139/cjfas-2018-0085
复制
发表时间:
2019
影响因子:
2.4
通讯作者:
Johnsson J. I.
中科院分区:
文献类型:
--
作者:
Koeck B;Zavorka L;Aldven D;Näslund J;Arlinghaus R;Thörnqvist P.-O;Winberg S;Björnsson B. T. ;Johnsson J. I.
Selection induced by human harvest can lead to different patterns of phenotypic change than selection induced by natural predation and could be a major driving force of evolution of wild populations. The vulnerability of individuals to angling depends on the individual decision to ingest the bait, possibly mediated by their neuroendocrine response towards the associated stimulus. To investigate the mechanisms behind individual vulnerability to angling, we conducted angling experiments in replicated ponds and quantified individual behavioral traits and neuroendocrine stress responsiveness in two salmonid species, rainbow trout (Oncorhynchus mykiss) and brown trout (Salmo trutta). We discovered a phenotypic syndrome in rainbow trout, but not in brown trout, where lower serotonergic and dopaminergic brain activity and cortisol levels (i.e., lower stress responsiveness) in response to a standardized experimental stressor were associated with higher activity, forming a proactive phenotype that showed increased vulnerability to angling. Our results show that angling targets the most stress-resilient and active phenotypes of rainbow trout, supporting the suggestion that fishing-induced phenotypic selection may lead to an increased representation of stress-responsive and low-activity phenotypes in harvested populations.
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DOI:
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发表时间:
2001
期刊:
影响因子:
--
作者:
M. Mezzera;C. Largiadèr
通讯作者:
C. Largiadèr
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
Tara D. Redpath;S. Cooke;C. Suski;R. Arlinghaus;P. Couture;D. Wahl;D. Philipp
通讯作者:
D. Philipp
影响因子:
2.7
作者:
T. Pottinger;P. Balm;A. D. Pickering
通讯作者:
A. D. Pickering
影响因子:
2.2
作者:
Juette, Tristan;Cucherousset, Julien;Cote, Julien
通讯作者:
Cote, Julien
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
J. García;N. Sanz;C. Pla
通讯作者:
C. Pla