The Sargasso Sea is often covered in rafts of sargassum, an unusual bulbous seaweed that forms a floating surface in which tuna, dolphinfish and crabs raise their young.
马尾藻海常常漂浮着大片马尾藻。这种奇特、带气囊的海藻会形成一层漂浮的海面生态带，金枪鱼、鲯鳅和螃蟹等都会在其中繁育幼体。
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