当前位置: X-MOL 学术Appl. Anim. Behav. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Behavioural Variation Among Divergent European And North American Farmed And Wild Atlantic Salmon (Salmo salar) Populations
Applied Animal Behaviour Science ( IF 2.3 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.applanim.2020.105029
Shahinur S. Islam , Brendan F. Wringe , Ian R. Bradbury , Ian A. Fleming

Abstract Animals often display consistent differences in behaviours across situations and contexts. However, little is known about how behavioural traits might vary in a context-dependent manner, with selection favouring correlated sets of behaviours in particular types of environments. Comparative studies of behavioural trait differences and associations among different populations can provide valuable insights into how this might operate. For example, farmed Atlantic salmon (Salmo salar) often escape into the wild and may produce hybrid and feral offspring that interact with wild conspecifics. Interactions between these offspring types may be mediated by differences in behaviour reflective of their different selective histories, which may in turn affect their relative fitness. In Newfoundland, Canada, site-specific permission has been granted to farm a strain of European origin (EO) salmon in addition to the current North American (NA) Saint John River strain. However, because these two farmed strains are genetically divergent, there is concern that behavioural trait differences will exist that affect interactions with native wild populations. We thus designed a common-garden experiment to compare the behaviour of individual fish from NA and EO farm strains in four different contexts (exploration, response to a novel object, boldness under predation risk and aggression) relative to that of wild fish and hybrid conspecifics. NA and EO farm fish did not differ in their behaviour (P > 0.05), but both were more explorative (P

中文翻译:

不同的欧洲和北美养殖和野生大西洋鲑鱼(Salmo salar)种群之间的行为差​​异

摘要 动物经常在不同情况和背景下表现出一致的行为差异。然而,人们对行为特征如何以依赖于上下文的方式变化知之甚少,选择有利于特定类型环境中的相关行为集。对不同人群之间的行为特征差异和关联的比较研究可以提供有关这可能如何运作的宝贵见解。例如,养殖的大西洋鲑鱼(Salmo salar)经常逃到野外,可能会产生与野生同种相互作用的杂交和野生后代。这些后代类型之间的相互作用可能是由反映它们不同选择历史的行为差异所介导的,这反过来又会影响它们的相对适应性。在加拿大纽芬兰,除了目前的北美 (NA) 圣约翰河鲑鱼品种外,还获得了特定地点的许可,可以养殖欧洲原产 (EO) 鲑鱼品种。然而,由于这两种养殖品系在遗传上存在差异,人们担心会存在影响与本地野生种群相互作用的行为特征差异。因此,我们设计了一个公共花园实验,以比较来自 NA 和 EO 养殖场品系的个体鱼在四种不同情况下(探索、对新物体的反应、捕食风险和侵略下的胆量)与野生鱼和杂交同种鱼的行为. NA 和 EO 养殖鱼的行为没有差异(P > 0.05),但两者都更具探索性(P 然而,由于这两种养殖品系在遗传上存在差异,人们担心会存在影响与本地野生种群相互作用的行为特征差异。因此,我们设计了一个公共花园实验,以比较来自 NA 和 EO 养殖场品系的个体鱼在四种不同背景下(探索、对新物体的反应、捕食风险和侵略下的胆量)与野生鱼和杂交同种鱼的行为. NA 和 EO 养殖鱼的行为没有差异(P > 0.05),但两者都更具探索性(P 然而,由于这两种养殖品系在遗传上存在差异,人们担心会存在影响与本地野生种群相互作用的行为特征差异。因此,我们设计了一个公共花园实验,以比较来自 NA 和 EO 养殖场品系的个体鱼在四种不同背景下(探索、对新物体的反应、捕食风险和侵略下的胆量)与野生鱼和杂交同种鱼的行为. NA 和 EO 养殖鱼的行为没有差异(P > 0.05),但两者都更具探索性(P 因此,我们设计了一个公共花园实验,以比较来自 NA 和 EO 养殖场品系的个体鱼在四种不同背景下(探索、对新物体的反应、捕食风险和侵略下的胆量)与野生鱼和杂交同种鱼的行为. NA 和 EO 养殖鱼的行为没有差异(P > 0.05),但两者都更具探索性(P 因此,我们设计了一个公共花园实验,以比较来自 NA 和 EO 养殖场品系的个体鱼在四种不同背景下(探索、对新物体的反应、捕食风险和侵略下的胆量)与野生鱼和杂交同种鱼的行为. NA 和 EO 养殖鱼的行为没有差异(P > 0.05),但两者都更具探索性(P
更新日期:2020-09-01
down
wechat
bug