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2002年9月16～19日南麂列岛海域发生3km2 红褐色赤潮 ,其原因种为红色裸甲藻(GymnodiniumsanguineumHirasaka) ,密度高达4.6×105 个/L。赤潮发生时伴随细菌的大量繁殖 ,江浙沿岸流所携带的营养物质是本次赤潮发生的基础 ,森拉克台风是本次赤潮的重要诱因。南麂海域的赤潮多发季节为4～5月份 ,9～11月份发生赤潮的可能性也较大 ,大沙岙、马祖岙和火岙等水体交换相对较弱的岙口为赤潮多发区。为保护南麂列岛国家级海洋自然保护区珍稀海洋贝藻资源 ,需协调好保护和开发之间日益尖锐的矛盾 ,控制养殖业的发展规模和游客的数量。
From September 16 to 19, 2002, 3km2 red brown red tide occurred in the waters of Nanji Islands due to the species of Gymnodiniumsanguineum Hirasaka with a density of 4.6 × 105 / L. The occurrence of red tide accompanied by large-scale bacterial proliferation, the flow of nutrients carried along the coast of Jiangsu and Zhejiang is the basis for the occurrence of this red tide, Sunray typhoon is an important incentive for this red tide. The frequent occurrence of red tide in Nanji waters is from April to May, and it is more likely that red tide will occur from September to November. The red tide with relatively weaker water exchange such as Dashahu, Matsuzaki and Pygmy Elaeocarpus is the most frequent area. In order to protect the rare marine shellfish resources in the Nanji Islands National Marine Nature Reserve, it is necessary to coordinate the increasingly sharp contradictions between protection and development and control the scale of the development of the breeding industry and the number of tourists.