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目前国内的活鱼运输船均采用开式循环系统,即用水泵连续抽取航道水补充到活鱼舱中,使舱内水体不断溢出舱外,以此来维持活鱼所需的水质环境.若在冬春季,航道水温低于10℃时,便无法进行活鱼运输.应用闭式循环技术,可以不受季节性气温、水温的限制,不受航道水质污染的影响,并且可以在淡水航区运载海水活鱼,全年运输时间长达12个月.改装后的“闽狮渔F259”温控活鱼运输船经过1.5a的运输试验考核,其保活运输时间超过200h;鱼水比达1∶15;存活率达98%以上;平均净载量30t/航次;获得较好的经济效益.
At present, domestic living fish carriers adopt an open circulation system, that is, water is continuously extracted from the water channel to the living fish tank so as to keep the water in the tank continuously overflowing the extragalactic water so as to maintain the water quality environment required by the live fish. In winter and spring, when the waterway temperature is lower than 10 ℃, the live fish will not be able to be transported. Closed circulation technology is not affected by seasonal air temperature and water temperature and is not affected by water pollution in the waterway. Carry live seawater live fish, the annual transport time up to 12 months after the modified “lion lion fishing F259” temperature control live fish transporter after 1.5a transport test assessment, the preservation and transportation time of more than 200h; fish than 1 : 15; survival rate of more than 98%; average net load of 30t / voyage; get better economic benefits.