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二氧化碳水平的上升导致越来越多酸化的海洋，因为水中过量溶解的二氧化碳产生了碳酸。由英国埃克塞特大学（University of Exeter）的Cosima Porteus带领的一个研究小组研究了欧洲海鲈鱼（Dicentrarchus labrax）在二氧化碳浓度是目前水平2.5倍的水中(专家预测本世纪末海洋会达到该二氧化碳水平)的行为。他们还追踪了鱼的神经反应。尽管据预测，二氧化碳的增加会使海洋pH值仅降低0.3到0.4个pH单位，但产生的影响却很明显：在酸度较大的水中，海鲈鱼探测到有味物体的距离比原来缩短了42％（
Nat. Clim. Change
2018，DOI：10.1038 / s41558-018-0224-8）。
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Title: 鱼类在酸化的海洋中嗅觉受阻
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