Fish stocks in the Baltic are in decline.

波罗的海的鱼类资源逐渐减少。

《牛津词典》

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But today conservationists say it is degrading mangrove swamps and ravaging fish stocks.

VOA: standard.2010.03.29

But by moving the seal it would help protect fish stocks on the western Cleddau.

BBC: Terry Leadbetter says it makes sense to remove the seal

The strategy unit says key UK fish stocks should aspire to achieve MSC certification by 2015.

BBC: NEWS | UK | Politics | 'Dismay' at proposed fishing reforms

Within three years, commercially important fish stocks had doubled in the seas adjacent to those reserves.

ECONOMIST: Marine conservation