“…In foreign countries, the fishing industry relies heavily on fossil fuels. A series of experimental research was carried out on energy-saving research on fishing vessels [ 106 , 107 ], fishing gear [ 108 , 109 , 110 ], fishing ports [ 111 , 112 , 113 , 114 , 115 ] and other sources of fishery energy consumption. For the recirculating aquaculture systems (RAS) in China [ 116 ], which are a cooperative combination of fish culture (aquaculture) and nutrient solution for soilless plant production (hydroponics), vegetables and fish in RAS grow rapidly at higher temperatures [ 117 ] and thus, the system must be heated.…”