河北省沿海赤潮研究20年

Twenty Years Research on Red Tide in the Coastal Area of Hebei

赤潮是河北省沿海地区主要海洋生态灾害之一,在秦皇岛以及沧州的黄骅/岐口附近海域频繁发生,发生期集中在高温季节。近20年来,河北省海域约发生赤潮40余起,其中发生面积较大及危害较严重的为4起;赤潮生物种类约55种,除了属于原生动物的红色中缢虫外,其他都属于浮游藻类,其中种类较多的为硅藻和甲藻,夜光藻等为河北省海域常见赤潮原因生物种。

Red tide is one of main marine ecological disasters in the coastal areas of Hebei Province.Red tides occur frequently in the sea areas around Qinhuangdao,Huanghua and Qikou of Cangzhou and the occurrence period is concentrated in high-temperaure season.During the past 20 years,more than 40 times of red tides occurred in the sea areas of Hebei.Among them,4 times of red tide had larger occurence area and more serious harm.There were about 50 species of red tide organisms.Except Mesodinium rubrum belonged to protozoan,other belonged to planktonic algae.Among them,there were more species of diatom and pyrrophyta.Noctiluca scintillans and so on were common causative organisms of red tide.