这份报告还强调了渔船搁浅、石油泄漏和意外事件，这些事件对南极生态系统构成了严重威胁。
The report also highlights incidents of fishing boats being involved in groundings, oil spills and accidents, which posed a serious threat to the Antarctic ecosystem.
因此，在理解和预测全球变化对南极和亚南极海洋生态系统影响方面，它们是关键物种。
As such, they are key species for understanding and predicting impacts of global change on Antarctic and sub-Antarctic marine ecosystems.
今天的报告是迄今为止对气候变化和人类开发对南极脆弱生态系统的潜在破坏性影响发出的最严厉警告。
Today's report is the starkest warning yet of the potentially devastating impact of climate change and human exploitation on the Antarctic's delicate ecosystems.
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