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鱼类越冬是东北地区池塘养鱼生产的一个非常重要的环节,任何失误都会造成越冬鱼类死亡,给渔业生产带来损失,因此掌握越冬期的增氧方法十分必要。通常情况下,池塘中溶解氧的来源有三种:一是从空气中直接溶解,通过风浪的作用,使水和空气接触,空气中的一部分氧气就溶入水中,增氧机就是运用这个原理。二是光合作用增氧,这是主要来源,约占池塘水中溶氧的90%。三是补水增氧,利用自然的流水或是人工的注水来增加溶解氧。
Overwintering of fish is a very important link in pond fish production in Northeast China. Any mistake will result in the death of overwintering fish and cause losses to fishery production. Therefore, it is necessary to master the method of adding oxygen during wintering period. Normally, there are three sources of dissolved oxygen in the pond: one is dissolved directly from the air, and by the action of wind and waves, water and air come into contact with it. Part of the oxygen in the air dissolves into the water. The aerator uses this principle. Second, photosynthesis aerobic, which is the main source of about 90% of dissolved oxygen in pond water. Third, replenishment oxygen, the use of natural water or artificial water to increase dissolved oxygen.