研究发现,圣劳伦斯湾的鲸鱼正在从磷虾转向鱼类,因为海水变暖。 Whales in the Gulf of St Lawrence are switching from krill to fish due to warming waters, a study finds.

由于海水变暖和北极磷虾不断减少, 圣劳伦斯湾的鱼、座头鲸和小鼠鲸正在从磷虾转向以鱼类为主的饮食, Fin, humpback, and minke whales in the Gulf of St Lawrence are shifting from krill to fish-based diets due to warming waters and declining Arctic krill, a 28-year study shows. 对1 000多份皮肤样本的分析显示,物种之间饮食重叠减少,表明资源分配增加,以减少竞争。 Analysis of over 1,000 skin samples reveals reduced dietary overlap among species, indicating increased resource partitioning to lessen competition. 虽然所有三种物种都以不同的鱼类为对象进行了适应性调整,如卡佩林和鱼,但没有出现迁移。 While all three species adapted by targeting different fish, such as capelin and herring, no displacement occurred. 科学家强调,当前的气候变化和人类活动威胁到这种平衡,敦促保护努力,以保护更广泛的海洋食物网。 Scientists stress that ongoing climate change and human activity threaten this balance, urging conservation efforts to protect the broader marine food web.