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首页> 外文期刊>Mathematical Problems in Engineering >Numerical Mesocosm Experimental Study on Harmful Algal Blooms of Two Algal Species in the East China Sea
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Numerical Mesocosm Experimental Study on Harmful Algal Blooms of Two Algal Species in the East China Sea

机译：东海两种藻类有害藻华的数值介观试验研究

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摘要

From the results of algal culture and mesocosm experiments, a numerical mesocosm experiment is designed that accounts for the effect of the marine environment (sea currents, nutrient levels, and temperature) on the harmful algal bloom (HAB) processes of Skeletonema costatum and Prorocentrum donghaiense, two of the most frequent HAB-associated species in the East China Sea. Physical and ecological environment of the waters is simulated numerically by applying a hydrodynamic-ecological-one-way-coupledmarine culture box model, which is semienclosed. The algal growth rate is digitalized by a temperature-factor-optimization Droop equation. A 90-mode-day numerical mesocosm experiment for the above two species is conducted. The species were found to alternately trigger algal blooms in the experimental waters, replicating the population succession phenomenon observed in the field and confirming that the two HAB species compete for nutrients. Deductively, the numerical result shows that both the Taiwan Warm Current and the eutrophication in the adjacent water of the Yangtze River Estuary contribute to the northward movement of algal concentration centers during HAB and also suggests that the lack of nutritious supplements in the open sea limits HAB occurrences in coastal waters.
机译：根据藻类培养和中观实验的结果，设计了一个数值中观实验，该实验考虑了海洋环境（海流，营养水平和温度）对肋骨骨架和东海原藻的有害藻华（HAB）过程的影响是东海最常见的与HAB相关的两个物种。通过半封闭的水动力-生态-单程耦合海洋养殖箱模型对水域的物理和生态环境进行了数值模拟。藻类生长速率通过温度因子优化Droop方程进行数字化处理。针对上述两个物种进行了90天模式的数值介观实验。发现该物种交替触发实验水域中的藻华，复制了在田间观察到的种群演替现象，并证实了这两个HAB物种竞争营养。演算结果表明，台湾暖流和长江口附近水域的富营养化都对HAB期间藻类浓缩中心的北移产生了影响，也表明在公海中缺乏营养补给品会限制HAB在沿海水域发生。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第21期|169860.1-169860.8|共8页
  • 作者

    Zhu Liangsheng; Wang Qing;

  • 作者单位

    S China Univ Technol, Naval Architecture & Ocean Engn R&D Ctr Guangdong, Guangzhou 510640, Guangdong, Peoples R China;

    S China Univ Technol, Naval Architecture & Ocean Engn R&D Ctr Guangdong, Guangzhou 510640, Guangdong, Peoples R China;

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