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南海大鹏湾海洋卡盾藻赤潮发生的环境背景
引用本文:齐雨藻,黄长江.南海大鹏湾海洋卡盾藻赤潮发生的环境背景[J].海洋与湖沼,1997,28(4):337-342.
作者姓名:齐雨藻  黄长江
作者单位:暨南大学水生生物研究所!广州,510632,暨南大学水生生物研究所!广州,510632
基金项目:国家自然科学基金资助项目,9389008号
摘    要:根据1991年2-3月,大鹏湾盐田水域的理化、水文、气象、海况的动态变化和大鹏湾底泥中发现海洋卡盾藻孢囊的事实,从生态学的角度分析并提出了1991年3月20-21日发生在大鹏湾盐田水域的海洋卡盾藻赤潮形成过程和机理。分析结果认为,此次赤潮应从3月7-10日的水温急升而引发的孢囊一齐萌芽开始,此后在东南风引起的表层风海流作用下,营养细胞逐渐在湾西北部的盐田水域聚集,而16-19日水 营养盐和金属元素

关 键 词:海洋  卡盾藻  浮游植物  生态学  红潮  海洋污染
收稿时间:4/3/1996 12:00:00 AM
修稿时间:1996/12/6 0:00:00

THE CAUSATIVE MECHANISM OF CHATONELLA MARINA BLOOM IN DAPENG BAY, THE SOUTH CI-HNA SEA
Qi Yuzao and Huang Changjiang.THE CAUSATIVE MECHANISM OF CHATONELLA MARINA BLOOM IN DAPENG BAY, THE SOUTH CI-HNA SEA[J].Oceanologia Et Limnologia Sinica,1997,28(4):337-342.
Authors:Qi Yuzao and Huang Changjiang
Institution:Institute of Hydrobiology, Jinan University, Guangzhou 510632;Institute of Hydrobiology, Jinan University, Guangzhou 510632
Abstract:According to the dynamic variations of hydrology, weather and sea-condition in Yantian Waters of Dapeng Bay between February and March in 1991, and the existence of Chatonella marina cyst found in the bottom sediments of Dapeng Bay in 1992, here the authors hypothesize the formatting process and mechanisms of C. marina bloom occurred in Yantian Waters of Dapeng Bay from March 20th to 21st,l99l. The bloom was suggested to be initiated by a large-scale germination of the dormant cells due to the water temperature increasing up to about 20°C from March 7th, which is optimum for germination of dormant cells of Chatonella. And then the vegetation cells of C. marina continuously multiplied in abundance due to a long-term maintenance of the optimum water temperature (20-22°C) for both germination of dormant cells and growth of vegetative cells of C. marina from about 11th to the bloom, and a fully nitrogen supply of organic and inorganic due to the thorough mixing of water column by a strong southeast wind in this season. At the same time, the vegetative cells were also driven by the strong southeast wind to accumulate continuously in the northwest part of Dapeng Bay (Yantian Waters). After March 17th, however, the Southeast wind suddenly became much weak, and tidal current became lowly due to severe diurnal inequality. These factors made not only the vegetative cells to increase much more, but also the converged population not to be broken up easily. So, the bloom of C. marina occurred at last in 20th characterized by a mean wind velocity < 0.5m/s.
Keywords:Red tide Chatonella marina Planktonic ecology
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