自70年代以来,海洋污染日趋严重,赤潮发生的次数也随之增加,特别是日本和美国。赤潮的发生,对水产资源危害极大。1971-1973年日本发生一次赤潮,使养殖的(鱼师)和对虾大量死亡(1)。1968年英国沿岸玉筋鱼和裸玉筋鱼因摄入原膝沟藻(protoganyculax ta-mermensis)引起大量死亡(2)。美国佛罗里达沿岸赤潮期间,赤潮生物毒素杀死大量的鲶、鲻和鳗等(3)。White(4)曾报道,1976年和1979年加拿大芬迪湾的大西洋鲱鱼(Clu- Since the 1970s, marine pollution has become increasingly serious, and the number of red tides has also increased, especially in Japan and the United States. The occurrence of red tide, great harm to aquatic resources. In 1971-1973, a red tide occurred in Japan, killing a large number of farmed (fish division) and shrimp (1). Large numbers of deaths were caused by intake of protoganyculax ta-mermensis in British coast jade and naked jellyfish in 1968 (2). Red tide biotoxins kill large numbers of catfish, jackals and eels during the tidal flats along the Florida coast of the United States (3). White (4) reported that in 1976 and 1979, the Atlantic herring in Fendi Bay, Canada (Clu-