Effects of aggressive interaction on downstream movement and olfactory function in masu salmon, Oncorhynchus masou
Effects of aggressive interaction on downstream movement and olfactory function in masu salmon, Oncorhynchus masou
复制标题
攻击性相互作用对马苏鲑鱼下游运动和嗅觉功能的影响
DOI：
10.1016/j.aquaculture.2010.09.012
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发表时间：
2012
期刊：
影响因子：
4.5
通讯作者：
Lee SP and Ueda H
中科院分区：
文献类型：
--
作者：
Hayashida K;Nii H;Tsuji T;Miyoshi K;Hamamoto S and Ueda H;Lee SP and Ueda H
在本研究中，开发了行为、电生理学和分子生物学实验来研究攻击性相互作用（“战斗经验”）对孵化场饲养的 1 岁马苏鲑鱼（Oncorhynchus masou）下游运动和与银化相关的嗅觉功能的作用。在四月和五月的战斗比赛中失败的鲑鱼个体比获胜者更早向下游移动。 4 月至 6 月期间，通过嗅觉电图测量失败者对 10−1M 氯化钠的盐度敏感度的嗅觉反应明显高于获胜者。 5月，先前暴露于10−4M l-谷氨酸1周的失败者对印记活动的嗅觉反应明显较高，并且鲑鱼嗅觉印记相关基因也高表达。在银化阶段，失去攻击性相互作用可能会对马苏鲑鱼的下游运动和嗅觉功能产生强烈影响。目前新开发的实验为评估马苏鲑鱼的攻击性相互作用和银化作用之间的关系提供了新的证据。
In the present study, behavioral, electrophysiological, and molecular biological experiments were developed to examine the role of aggressive interaction (“fighting experience”) on downstream movement and olfactory function in relation to smoltification in hatchery-reared 1-year-old masu salmon (Oncorhynchus masou). Individual salmon that lost the fighting contest in April and May moved downstream earlier than the winners. The olfactory response to salinity sensitivity of the losers, measured by electro-olfactogram to 10−1M sodium chloride, was significantly higher than that of the winners during the period from April to June. In May, the olfactory response to imprinting activity of the losers, previously exposed for 1week to 10−4M l-glutamic acid was significantly high, and the salmon olfactory imprinting-related gene was also highly expressed. During the smoltification period, losing the aggressive interaction might exert strong influences on downstream movement and olfactory function in masu salmon. The present newly developed experiments provide new evidence for evaluating the relation between the aggressive interaction and the smoltification in masu salmon.