seafloor

Sea urchins brandish their spines on the seafloor near the Channel Islands..海胆在海峡群岛附近的海底挥舞着它们的棘突。

Japan plans to test extraction methods to obtain methane hydrates from the seafloor southwest of Tokyo..日本计划测试开采方法，以从东京西南的海底获得甲烷水合物。

No new rights are given over fish or other creatures in the water column, but living creatures on or below the seafloor that are immobile “at the harvestable stage” are treated like minerals..对于水层的鱼和其他生物，现在还没有新的规定，但是对于那些生长在海底上面或下面的生物，在“丰收季节”是不会移动的，它们也是一种矿藏。