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水产养殖过程中,因水源紧缺或水源水质不良或污水排放要求严格或为了节省能源,以精养来提高经济效益,池水往往需要重复利用。目前,水再循环系统的使用并不太普遍,究其原因是设计和操作过于复杂,有些养殖品种如鲑鱼也不能充分利用这种再循环系统的潜力。在鲑鳟鱼养殖中,封闭型的水产养殖场可以利用地下水解决水温问题,因此设备可以得到充分利用。在这种情况下,必须建立一个强化而有弹性的二龄鲑生产体制,即一年以内生产多批二龄鲑,这样的生产体制可以充分利用与再循环系统相关的优点。
Aquaculture process, due to lack of water or poor water quality or sewage discharge requirements of strict or in order to save energy, intensive to improve economic efficiency, water often need to be reused. At present, the use of water recirculation systems is not very common because of the complexity of design and operation, and some cultured species such as salmon also do not take full advantage of the potential of this recirculation system. In salmon trout farming, closed aquaculture farms can use groundwater to solve water temperature problems, so equipment can be fully utilized. Under such circumstances, it is necessary to establish an enhanced and flexible second-stage salmon production system, that is, to produce multiple second-stage salmon within a year, so that the production system can fully utilize the advantages associated with the recycling system.