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在人类活动的影响下,大量富含氮、磷等生物所需要的营养物质排入海洋,使某些水体交换差的河口、海湾区营养盐含量过高,引起水体富营养化统称为赤潮。现已查明,世界上有150多种浮游生物能形成赤潮,多数为甲藻。赤潮除对渔业危害很大外,还可危及人类健康。因此,世界上普遍重视赤潮的研究,在发生的海域进行大量调查,并对其发生机制、防治、预测预报进行了大量研究,现将概况简述如下。 一、国外赤潮发生与危害概况近20年来,世界各地发生赤潮的事件剧增。如美国的佛罗里达沿岸,1916—1948年间只
Under the influence of human activities, a large number of nutrients needed by rich organisms such as nitrogen and phosphorus are discharged into the sea, causing some water bodies to exchange poor estuary and high nutrient content in the Bay Area, causing eutrophication of water bodies collectively as red tide. It has been identified that more than 150 kinds of plankton in the world can form red tide, mostly dinoflagellates. Red tide in addition to the great harm to fisheries, but also can endanger human health. Therefore, the research on red tides in the world is widespread, a large number of investigations are conducted in the sea area where the occurrence occurred, and a great deal of research has been conducted on its mechanism, prevention and control and forecasting. First, the occurrence and harm of foreign red tide Overview Nearly 20 years, the incidence of red tides around the world surge. Such as the United States on the Florida coast, 1916-1948 only