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以深水网箱立体健康养殖水域环境为研究对象,在试验过程中对试验区养殖环境进行有效监控。建立了养殖环境营养指数、有机污染指数相结合的评价模型,并对海水水质进行监测与评价,营养指数E:E=COD×DIN×DIP×10~6/4500,有机污染评价指数(A)法:A=COD/COD_0+DIN/DIN_0+DIP/DIP_0-DO/DO_0,两年水质监测结果表明,试验区养殖水体较参考点没有发生很大改变,营养指数为0.068～0.669,有机污染评价指数为-0.395～0.529,海水水质较好,有效保护了养殖水域生态环境,生态效益显著。而对照组营养指数为0.040～22.399,污染指数为-0.511～4.094,水质一年后处于中度污染状态。
Taking the three-dimensional healthy aquaculture water environment of deep-water cage as the research object, the aquaculture environment in the pilot area was effectively monitored during the experiment. The evaluation model for the combination of nutrition index and organic pollution index of aquaculture environment was set up, and the monitoring and evaluation of seawater quality were carried out. The nutrition index E = COD × DIN × DIP × 10-6 / 4500, organic pollution evaluation index (A) The results of water quality monitoring in two years showed that there was no significant change in the aquaculture water in the experimental area compared with the reference point, the nutrition index was 0.068 ~ 0.669, and the evaluation of organic pollution was as follows: A = COD / COD_0 + DIN / DIN_0 + DIP / DIP_0- DO / DO_0. The index is -0.395 ~ 0.529. The quality of seawater is good, which effectively protects the ecological environment of aquaculture waters and has significant ecological benefits. The nutrition index of the control group was 0.040 ~ 22.399, the pollution index was -0.511 ~ 4.094, and the water quality was moderately contaminated one year later.