Abstract:In March-June 2010, five cruises were conducted at “hot spots” for Enteromorpha prolifera bloom in the Southern Yellow Sea to study the importance of environmental factors in the outbreak of green tide. Waters in the investigated area were observed to have a low salinity and high nutrients due to the terrestrial runoff and northern Jiangsu coastal current. These characteristics may result in the frequent outbreak of green tide in this area. Water temperature increased gradually from 8.8℃ to 21.6℃ during the five cruises. During the third cruise (average temperature, 14.6℃; average salinity, 31.6), floating Enteromorpha prolifera mats were observed at the survey area. Temperature and salinity during 3-5cruises were found to be suitable for the growth and spore release of Enteromorpha prolifera. DO was over-saturated at most sampling stations and it decreased gradually from cruise 1to 5. pH was found to be less than 8.0at almost the entire survey area due to the terrestrial input. Results of this study implied that temperature, salinity, pH and DO could be the factors that enhance the growth and spore release of Enteromorpha prolifera, subsequently promoting the occurrence of green tide in the southern Yellow Sea.
高嵩, 范士亮, 韩秀荣, 李艳, 王婷, 石晓勇. 浒苔绿潮与南黄海近岸海域水质的关系[J]. 中国环境科学, 2014, 34(1): 213-218.
GAO Song, FAN Shi-Liang, HAN Xiu-Rong, LI Yan, WANG Ting, SHI Xiao-Yong. Relations of Enteromorpha prolifera blooms with temperature, salinity, dissolved oxygen and pH in the Southern Yellow Sea. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(1): 213-218.