甲藻赤潮对养鲍业的危害及其防治探讨

An approach of red tide of dinoflagellates impacts on abalone aquaculture in Fujian Province and countermeasures

1998年 5月 17日～ 1998年 6月 6日在福建省连江县苔录镇后湾海域发生一起由裸甲藻等引起的赤潮 ,对鲍鱼养殖业造成严重危害。初步断定 :引起鲍鱼死亡的原因是由于裸甲藻等赤潮生物分泌了某种毒素。并对赤潮在陆上养鲍业上的治理方法进行了研究 ,结果表明 :5～ 2 0mL/m3 甲醛溶液可杀伤甲藻等赤潮生物 ,但不能解体该赤潮生物 ;0 .1～ 0 .5g/m3 KMnO4

Gymnolinium sp. red tide occurred in May 17 to June 6,1998 in Fujian coastal waters.This red tide caused heavy losses to abalone aquaculture.Preliminary concluding: Basic reason of causing abalone death was that Gymnolinium sp. et al had produced some toxins.We studied removal means of red tide organisms in abalone aquaculture on land,the most important countermeasures were listed below:①5～20mL/m3 concentrations of Formaldin could kill Gymnolinium sp.,but could not disintegrate them;②0.1～0.5 g/m3 concentrations KMnO 4 could control the disaster caused by Gymnolinium sp..