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《Journal of Safety and Environment》 2002-03
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SOME RESEARCH ON THE WAYS OF RED TIDE PREDICTION AND PREVENTION

MIAO Jin lai 1, 2 , SHI Hong qi 1, 2 , LI Guang you 2, WANG Bo 2 & HAN Li 2 (1 Marine Life College, Ocean University of Qingdao, Qingdao 266003, China) (2 Key Laboratory of Marine Bio active Substances, State Ocean Admission, Qingdao 26  
The present article aims at analyzing the actual situation of the ever increasing happening of the red tide along China's coast areas in recent years and the ways on how to predict their happenings timely. As is known, red tide is a serious global marine disaster causing billions of dollars' economic loss to the world and at least over 1 billion yuan loss to China. Furthermore, it has caused serious eco environmental problems to human existence. Based on our observation and research, this article has given a thorough analysis of the actual situation on the ever increasing outbreaks of red tides in recent years and has done a prediction of the trend of red tide happening this year. Our prediction is that the tide will come this year almost at the period as that of last year but a little sooner. The article has also summarized the current international methods for red tide prevention and brings the three detailed methods for prevention and controlling, that is, the physical method, chemical method as well as the biological one. The first method is to use hydroxyl radicals. Its mechanism is that hydroxyl radicals produced by the seawater and air under the action of electricity can totally kill the red tide cells and decompose the organic substances such as protein and polysaccharides in dead cells with no harm to fish. Second is large scale seaweed cultivation for nutrient removal to prevent red tide. Elevated nutrients are suggested to induce phytoplankton blooms, including "red tide" phenomenon. Some cultivated seaweed may be so productive as to absorb large quantities of N, P and CO 2 by producing large amounts of O 2 to reduce the eutrophication. The third method is to control the alga blossoming by producing bacteriological marine microbes. Such microbes play a decisive role in combating the occurrence of red tide based on their population variety and diversity, in addition to the diversity of their biophysiological and biochemical properties, their ecological function diversity and heredity diversity. The authors of this article believe and suggest that the bacteriological method is the best scientific way to manage and control the red tide occurrence.
【CateGory Index】: X55
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