The greatest threats to Marine mammals are being caught in fishing nets or being struck by shipping vessels, although for the Yangtze river dolphin, pollution is a major contributor.

虽然长江豚的灭绝主要是因为水源污染，但对海洋哺乳动物来说，面临的最大威胁是深陷鱼网或被渔船捕获。

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"The sooner we come to grips with it... the sooner we can stop the downward spiral by creating stricter fishing regulations and more Marine reserves," co-author Enric Sala said in a statement.

“我们掌握它的时间越早，那通过建立严格的捕鱼条例和更多的海洋鱼业保护区，我们就能越早的停止鱼类资源的不断减少。”合作者安克萨拉在一份声明中说。

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rnason and his colleagues argue that to avert a collapse, large marine reserves where fishing is prohibited are required.

Árnason及同事认为，要避免这种情况，就必须建立大范围的禁止捕捞的海洋保护区。

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Fisheries and the marine environment could be managed regionally "on a collaborative basis with the fishing industry", he added.

BBC: NEWS | UK | UK 'must shield fishing industry'

The panel will also have to finalise levels of protection in each zone, as the Marine Bill allows regulators a lot of flexibility in what to prohibit (such as fishing) for which periods of the year.

BBC: Marine protection bids unveiled

The ban came into affect in November after a committee was formed to find ways of protecting marine life without damaging the Manx fishing industry.

BBC: Lobster