They provide spawning grounds and nutrients for fish and shellfish.

它们为鱼类和贝类提供产卵场所和营养物。

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Closing breeding and spawning grounds to protect Marine ecosystems.

关闭繁衍产卵地以保护海洋生态系统。

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The eyes of eels grow larger for their final journey to their spawning grounds, enhancing their vision.

为奔向它们的产孵地而开始最后的旅行时，鳗鱼的眼睛会变大，提高了它们的视野。

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Pinpointing specific areas such as spawning grounds would have a greater affect, without damaging fishermen's livelihoods.

BBC: You are in: UK

Production dipped only when factories started damming rivers and building plants that dumped sludge into spawning grounds.

FORBES: Magazine Article

As well, fishing communities lost millions of dollars in potential revenue from destroyed salmon, black cod and herring spawning grounds.

CNN: Conference to assess Exxon Valdez oil spill