仅事实
科学家确定海星衰弱病的细菌病因
摘要
研究人员已确定致病细菌为贝壳弧菌（Vibrio pectenicida），该细菌自2013年以来导致太平洋沿岸海星大规模死亡。
自2013年以来，一种神秘疾病导致北美太平洋沿岸超过50亿只海星死亡，严重影响了20多种海星。特别是向日葵海星，在疫情爆发的前五年内，种群数量下降了约90%。
最新研究确定贝壳弧菌（Vibrio pectenicida）是导致海星衰弱病的病原菌。该疾病表现为海星出现病变、失去触手，最终身体解体。相关研究成果发表在《自然生态与进化》杂志上。
海星的大量死亡导致海胆过度繁殖，进而破坏了海带森林，而海带森林是众多海洋物种的重要栖息地。了解该疾病的细菌病因，是制定保护策略的重要一步，例如培育抗病海星和恢复受影响的生态系统。
来源
CBS News事实核查
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Since 2013, a mysterious disease has led to the death of over 5 billion sea stars along the Pacific coast of North America, severely impacting more than 20 species.
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The sunflower sea star, in particular, experienced a population decline of approximately 90% within the first five years of the outbreak.
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Recent research has identified the bacterium Vibrio pectenicida as the cause of this sea star wasting disease.
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The disease manifests through lesions, arm loss, and eventual disintegration of the sea stars' bodies.
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The findings were published in the journal Nature Ecology & Evolution.
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The loss of sea stars has led to an overpopulation of sea urchins, which in turn has devastated kelp forests—critical habitats for numerous marine species.
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