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"We found something very unexpected," said co-author Pierre Dutrieux, from the British Antarctic Survey (BAS), referring to the 400m-high ridge.

“我们得到一些非常意外的发现，”来自英国南极调查局(BAS)的合著者皮埃尔·杜特·里奥说，他指的是400米高的海脊。

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That expansion has left only unproductive fishing areas on the high seas and the ice-covered waters of the arctic and Antarctic for boats to move into.

这种扩张只在公海和冰川覆盖的南北极留下非生产性渔区供船只进入。

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The islands, lying between the Antarctic and Subtropical Convergences and the seas, have a high level of productivity, biodiversity, wildlife population densities and endemism among birds, plants and invertebrates.

UNESCO: Culture