自1970年以来,鲨鱼和射线鱼的数量下降了50%以上,对海洋生态系统构成威胁。 Shark and ray populations have dropped by over 50% since 1970, threatening ocean ecosystems.

自1970年以来,鲨鱼和射线鱼数量下降了50%以上,其中,过度捕捞、污染和生境损失是关键因素。 Shark and ray populations have fallen by over 50% since 1970, with overfishing, pollution, and habitat loss as key factors. 该研究跟踪了1 199种物种,表明大型物种的衰落可能导致其生态功能丧失高达22%。 The study, tracking 1,199 species, shows that large species' decline could lead to a loss of up to 22% of their ecological functions. 研究人员强调必须减少捕鱼压力和改善治理,以保护这些关键的海洋捕食者。 Researchers highlight the importance of reducing fishing pressure and improving governance to protect these crucial ocean predators.