- and for short periods, they appear in astounding numbers.
在很短的时间内,它们就能达到惊人的数量. - Krill, shrimp like creatures. By weight they're the most abundant animals on the planet. A single swarm can contain two million tons of them
磷虾,一种小型虾类,如果按重量计算 他们是地球上最多量的动物,一群就可达200万吨 - and that is a lot of fish food.
磷虾也为鱼提供了大量的食物 - The shallow temperate seas support the greatest concentrations of fish on our planet.
这片温和的浅海是地球上鱼类最密集的地区 - Huge shoals migrate from their overwintering grounds in the depths
大量鱼群从海洋深处的冬歇地赶来 - to feed in these rich waters.
在这片富饶海域进食 - It's these shoals that support most of the world's sea mammals.
鱼群也养育了世界上大多数海洋哺乳动物
The shallow temperate seas support the greatest concentrations of fish on our planet. 这片温和的浅海是地球上鱼类最密集的地区
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