... Anadarinae 船蛤亚科 anadromous fish 溯河鱼；溯游鱼 anadromous migration 溯河回游 ...
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fluvial anadromous fish 溯河产卵鱼类
anadromous s fish 溯河鱼
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Salmon spawn in fresh water, but in many cases, the fish spend most of their lives at sea, returning to the rivers only to reproduce. This lifecycle is described as anadromous.
虽然作为淡水鱼类，三文鱼大部分时间都生活在海洋里，它们只在产卵期间回到淡水中，这种生活习性被称为溯河产卵。
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