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鱼会不会被冻死

更新时间: 2020-09-22 00:00:00     

鱼是冷血动物,温度越低新陈代谢越慢,当温度很低时需氧量和饮食近乎停止,所以能维持生命。水温低于零摄氏度时,在湖面较低温的水会先凝结成冰,然后向湖底漫延。冰底下的水温一般维持在3至4摄氏度左右。水的最小体积在四摄氏度左右,故低于四度的水会浮在上面而变成固态的水,因此越往下层水越不易结冰,故鱼能活着。

关键词: 冻死

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