加利福尼亚州圣克鲁兹合众国际社报道，美国研究人员认为在礁石上进行频繁捕捞会导致海胆的迅猛繁殖，而过量的海胆则会破坏构成热带礁石系的珊瑚藻类。

SANTA CRUZ, Calif., Jan. 14 (UPI) — Overfishing of reefs leads to explosions in populations of sea urchins, which destroy coral algae that build tropical reef systems, U.S. researchers say.

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珊瑚幼虫在藻类中定居，并最终形成繁盛的珊瑚群落。

Coral larvae settle among the algae and eventually establish flourishing coral colonies.

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它们以藻类为食，防止藻类压垮珊瑚。

They eat algae and prevent it from overwhelming the coral.

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