Cold water fish cannot survive in water above 20 degrees Celsius.

冷水鱼高于二十度水温就不能存活。

Cold water fish are delicate and die as soon as they leave the water.

冷水鱼娇贵，离水即死。

This means that a lot of areas cold water fish depend on " could become inhospitable, " he added.

这意味着冷水鱼所依赖的许多区域" 可能会变得不适宜居住，" 他补充说。

This makes the relatively cold Heilong River, one of the main places for cold water fish in China.

因此相对寒冷的黑龙江是中国境内野生冷水鱼的主要分布区之一。

The deep water drop in oxygen levels may affect organisms that are more sensitive to temperature increases, such as cold water fish.

水中氧气含量的下降可能会影响到对温度升高更敏感的生物，比如冷水鱼。