不少海洋鱼类在生殖洄游期间,摄食减少或停顿。在这期间,不仅鱼体内部发生著显的生理和生化变化,而且还要经过长达千里的旅程,到达目的地产卵,这些都需要消耗大量能量。洄游时鱼体所需的能量,大致包括维持机体正常生活所需的能量、生殖腺生长所需的能量、完成远距离洄游任务所需的能量,有些溯河性洄游鱼(如鲑鱼)还要适应渗透环境变化而消耗能量。洄游时,这么多的能需和能耗是如何解决的呢?诚然,某些鱼可以通过洄游 During the reproductive migration of many marine fishes, feeding has been reduced or stopped. During this period, not only significant physiological and biochemical changes took place inside the fish body, but it also took a long journey and reached the destination to lay eggs, all of which consumed a lot of energy. The energy required for the fish to migrate roughly includes the energy required to maintain the body’s normal life, the energy required to grow the gonads, the energy required to complete long-range migratory tasks, and some anadromous migratory fish (such as salmon) Permeate the environment and consume energy. When migrating, how much energy needs and energy can be solved? It is true that some fish can migrate