| 摘要: |
| 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(Gymnodiniumsanguineum Hirasaka) ,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。 |
| 关键词: 南麂列岛 红色裸甲藻 赤潮成因 |
| DOI： |
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| 基金项目:国家重点基础研究计划项目 (2001CB409700) |
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| The environmental factor and cause of Gymnodiniumsanguineum HAB in Nanji Islands Preserved District |
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| Abstract: |
| A red - brown harmful algal bloom was found in Nanji Islands preserved District during Sep 16 to Sep 19 2002. The HAB species was Gymnodiniumsanguineum at high density ( 4.6 × 105 cell / L) with infected area of about 3 km2. The bacteria multiplied fast in the HAB event. Nutriment brought by Zhejiang coastal current was the major reason of this event, and Typhoon Sinlaku was an important induce; In the study area, the HAB frequent season is April and May in the areas of Dasha Ao, Mazhu Ao and Huogen Ao where water exchange is weak. To protect marine resources in the area, as well as the tourism, overloading inaquiculture and sight - seeing must be coordinated and controlled. |
| Key words: Nanji Islands Gymnodiniumsanguineum cause of HAB |
