Spiny lobster post-larvae undertake an extensive migration from the open ocean to the coast, during which time their swimming is fueled solely by energy reserves accumulated through their preceding larval phase. We assessed the influence of future ocean temperatures on the swimming behavior and energy use of migrating post-larvae of Sagmariasus verreauxi, by experimentally swimming post-larvae for up to 6 days at three temperatures and measuring the lipid and protein used, and observing their time spent actively swimming. Increasing the temperature from 17 °C to 23 °C doubled the energy utilized by post-larvae while swimming, while also reducing the time they spent swimming by three times. Therefore, increasing ocean temperatures appear to greatly affect the energetic cost and efficiency of shoreward migration of post-larvae in this lobster species, with the potential to markedly impact post-larval recruitment into coastal populations under future scenarios of ocean warming.

刺龙虾幼虫从公海到沿海地区进行了广泛的迁徙，在此期间，它们的游泳完全由其前一个幼虫阶段积累的能量储备提供动力。我们评估了未来海洋温度对Sagmariasus verreauxi迁移后幼虫的游泳行为和能量利用的影响，通过在三种温度下实验幼虫后长达6天的时间，并测量所用的脂质和蛋白质，并观察它们活跃游泳的时间。将温度从17°C升高到23°C，使幼体游泳时所消耗的能量增加了一倍，同时使游泳时间减少了三倍。因此，不断升高的海洋温度似乎极大地影响了该龙虾物种中幼体向后迁移的能量成本和效率，并有可能在未来海洋变暖的情况下显着影响幼体向海岸种群的招募。