youdao

Fewer otters would have allowed sea urchin populations on which the otters preyed to expand and the urchins' grazing pressure on kelp forests to increase.

海獭的减少会使海胆的数量增加，因为海獭以此为食，从而增加海胆对海藻林的食草压力。

youdao

And they've destroyed the kelp forests, and with it, the kelp forest ecosystem in southwestern Alaska.

并且破坏阿拉斯加啊西南部的海藻林生态系统。

youdao

The American state of California is another area where long-spined sea urchins have been destroying kelp forests.

VOA: special.2009.08.25

Kelp forests provide a protected home and food for many kinds of sea life.

VOA: special.2009.08.25

And people active in water-sports like to dive and row boats in kelp forests.

VOA: special.2009.08.25

The 11 sq km (1100 hectares) area of seabed, includes kelp forests, rocky reef habitat and limestone ledges encrusted in marine life.

BBC: Lobster