Life history strategy and migration pattern of juvenile sockeye (Oncorhynchus nerka) and chum salmon (O. keta) in Japan : a review
Life history strategy and migration pattern of juvenile sockeye (Oncorhynchus nerka) and chum salmon (O. keta) in Japan : a review
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日本红鲑幼鱼 (Oncorhynchus nerka) 和鲑鱼 (O. keta) 的生活史策略和洄游模式：综述
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
M. Kaeriyama
中科院分区：
文献类型：
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作者：
M. Kaeriyama
红鲑（Oncorhynchus nerka）和大麻哈鱼（0.缩酮表现出一种条件策略，它具有驻留和迁移两种策略。如果它们能获得足够的资源，如食物和栖息地，它们就留在湖泊和河流中，如果它们没有足够的资源来满足能量代谢，它们就向海洋迁移。它们的迁移模式受“先前居住地”和“先前迁移”效应的控制，可能受到资源获取的利润与风险之间的权衡的影响，这些风险包括鱼类调节、游泳的能量需求、捕食者的暴露以及水流对非适应性栖息地的动员。虹鳟属鱼类的生活史策略和洄游模式反映了溯河产卵鱼类的进化过程，通过溯河产卵获得了在海洋中的食物资源和在淡水中归巢繁殖的能力。
Life histories of sockeye (Oncorhynchus nerka) and chum salmon (0. ketal show a conditional strategy which have two tactics of residence and migration. They remain in lakes and rivers if they can obtain sufficient resources such as food and habitat, or migrate seaward when they do not have enough resources to satisfy their energy metabolism. Their migration pattern, controlled by effects of "prior residence" and "precedent migration", may be influenced by trade off between the profitability of resource acquisition and risks such as osmoregulation, energetic demands of swimming, exposure to predators, and mobilization to non-adaptable habitat by water current. The life history strategy and migration pattern of the genus Oncorhynchus reflect an evolution of anadromous fish by which they have acquired anadromy for obtaining food resources in the sea and homing ability for reproduction in freshwater.