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嵊泗养殖海区具有适合于水产品生长的温度、pH、透明度、盐度等自然条件,有较高的溶解氧、丰富的溶解无机氮和磷,有密度较高的浮游植物和微小型浮游动物作为饵料基础,是理想的海水养殖区。但此区水体已进入富营养化类型,周年测定结果有61.54％站次富营养化指数≥1。按水质指数有35.90％站次属中到重污染。此区又是赤潮多发区,赤潮史生期及前后期水质有明显变化,富营养化指数增高2～10倍,水质指数均属中至重污染。列举了近年来该区赤潮发生状况对养殖业的影响。采用回避赤潮的养殖措拖取得良好效益。
Shengsi aquaculture sea area has suitable natural conditions such as temperature, pH, transparency and salinity of aquatic products, high dissolved oxygen, abundant dissolved inorganic nitrogen and phosphorus, high density of phytoplankton and micro-zooplankton Basis bait, is the ideal mariculture zone. However, the water bodies in this area have entered the eutrophication type, and the annual measurement results show that the eutrophication index is 61.54%. According to the water quality index of 35.90% of the stations to heavy pollution. This region is also a frequent area with red tide. The water quality of the red tide has obviously changed during the biochemical period and before and after the red tide, and the eutrophication index increased by 2 ~ 10 times. The water quality index is moderate to heavy pollution. The impacts of the occurrence of red tide in this area on aquaculture have been listed in recent years. The use of aquaculture measures to avoid red tides obtained good benefits.