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为什么螃蟹放水里一晚就死了
更新时间: 2020-09-23 00:00:00  

螃蟹在离开水后,会吸进大量空气。它吸进的空气愈多,鳃和空气接触的面积就愈大,鳃里储备的水分和空气由口器两边吐出来,成为泡沫。所以只要有一点水,螃蟹可以活很久。

而水过多以至于淹过螃蟹的身体后,如果水中溶氧不足,螃蟹很容易应缺氧而死掉。

关键词: 为什么 螃蟹 放水

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