二、温流水式养鱼温流水式养鱼的水主要来源于工矿企业的废热水、温泉水、地下热水、人工加热水等。这些水经过简单的增氧、降温处理后即可用于养鱼,用过的水不再回收利用。由于各国的温泉水、地下热水有限,加上开采费用昂贵,因此,目前各国主要是利用工矿企业(特别是电厂)排出的温水来养鱼,这就是所说的温流水养 Second, warm water temperature water fish water temperature is mainly derived from industrial and mining waste water, hot spring water, underground hot water, artificial heating water. The water after a simple oxygen, cooling treatment can be used for fish, used water is no longer recycled. Due to the limited hot spring water and underground hot water in various countries and the high cost of exploitation, countries currently use the warm water discharged by industrial and mining enterprises (especially power plants) to fish, which is called warm water aquaculture