The invention relates to a
water circulation system and a method for breeding marine fishes inland, and mainly solves the technical problems of complex process, large investment, high
operating cost, large limitation of breeding varieties, low
survival rate,
slow growth and the like in the process of breeding the marine fishes in
fresh water or
low salinity salt water at present. A technical scheme comprises the following steps of: a, establishing the
water circulation system; b, performing
domestication on
juvenile fishes of the marine fishes in the
low salinity salt water in a gradient mode, namely breeding the
juvenile fishes which are bred in the
seawater in the
brackish water temporarily, formulating a
domestication strategy of slowing
salinity gradually, and performing domesticationon the
juvenile fishes of the marine fishes through three gradients, namely the
brackish water phase, the
low salinity phase and the ultra-low
salinity phase; c, adding a physiological salt preparation, namely adding
metal ions which play a key role in
osmoregulation into the water or a feed; and d, managing the breeding, namely providing a preference temperature, illumination intensity and a daily illumination period. The
water circulation system and the method are mainly used for breeding the marine fishes inland.