Coping strategies in a strongly schooling fish, the common carp Cyprinus carpio
Coping strategies in a strongly schooling fish, the common carp Cyprinus carpio
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DOI：
10.1111/j.1095-8649.2010.02582.x
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发表时间：
2010-05-01
影响因子：
2
通讯作者：
Kadri, S.
中科院分区：
文献类型：
--
作者：
Huntingford, F. A.;Andrew, G.;Kadri, S.
对个体鲤鱼进行了反复筛选，以确定其冒险程度(对新的、具有潜在危险的环境的探险率)和竞争能力(成功获得空间有限的食物来源)。行为上的显著差异是明显的，在冒险和竞争能力方面，试验中的个体反应都发现了显著的一致性。此外，在这两种情况下，个体表现之间存在显著的正相关关系，在新环境中探索得更快的鱼往往是最先获得受限制食物的鱼类之一。在两项后续研究中，从冒险行为的两个极端比较了鱼类的静息代谢率、血乳酸和血糖，以及头肾和脑中皮质醇受体基因的表达。冒险鱼类的群体特定代谢率显著高于避险鱼类，而血浆乳酸和葡萄糖浓度以及皮质醇受体基因的表达水平则较低。结论是，与许多其他动物一样，鲤鱼存在基于大胆和攻击性的行为综合症，这与代谢和应激生理学的差异(深入到基因组水平)有关，类似于具有不同应对策略的动物的描述。(C)2010年《作者杂志》汇编(C)2010年不列颠群岛渔业协会
Individual common carp Cyprinus carpio were screened repeatedly for risk taking (rate of exploration of a novel, potentially dangerous environment) and for competitive ability (success in gaining access to a spatially restricted food source). Marked differences in behaviour were evident, and significant consistency in individual responses across trials was found for both risk taking and competitive ability. In addition, there was a significant positive relationship between individual performance in these two contexts, with fish that explored more quickly in the novel environment tending to be among the first to gain access to restricted food. In two follow-up studies, resting metabolic rate, blood lactate and glucose and the expression of the cortisol receptor gene in the head kidney and brain were compared in fish from the two extremes of the risk-taking spectrum. Mass-specific metabolic rate was significantly higher in risk-taking than in risk-avoiding fish, while plasma lactate and glucose concentrations and expression of the cortisol receptor gene were lower. It was concluded that a behavioural syndrome based on boldness and aggression exists in C. carpio, as it does in many other animals, and that this is associated with differences in metabolic and stress physiology (down to the genomic level) similar to those described in animals with different coping strategies. (C) 2010 The Authors Journal compilation (C) 2010 The Fisheries Society of the British Isles