2014年黄海绿潮暴发后绿藻显微繁殖体的时空分布特征  

Tempo-spatial distribution of green algae micro-propagules in the Yellow Sea after the outbreak of the green tide in 2014

作　　者：韩红宾 宋伟[2] 何培民 王宗灵[1,2] 丁德文[1,2] HAN Hong-bin;SONG Wei;HE Pei-min;WANG Zong-ling;DING De-wen(College of Environmental Science and Engineering,Ocean University of China,Qingdao 266100,China;The First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China;College of Marine Ecology and Environment,Shanghai Ocean University,Shanghai 201306,China)

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266100 [2]国家海洋局第一海洋研究所,山东青岛266061 [3]上海海洋大学海洋生态与环境学院,上海201306

出　　处：《海洋环境科学》2018年第6期801-807,共7页Marine Environmental Science

基　　金：国家自然科学基金(41606190);山东省自然科学基金(ZR2016DB22);海洋赤潮灾害立体监测技术与应用国家海洋局重点实验室2018年度开放基金(MATHAB201806);国家海洋公益性项目(201205010;201105023);国家重点研发计划"海洋环境安全保障"重点专项"浒苔绿潮形成机理与综合防控技术研究及应用"(2016YFC1402106;2016YFC1402104)

摘　　要：基于2014年10至12月对黄海西部海域水体与沉积物样品采集及实验室萌发培养实验,探究了绿潮暴发后该海域绿藻显微繁殖体的时空分布特征。结果表明,调查海域绿藻显微繁殖体呈现明显的时空变化特征,总体上,高值区集中在如东及大丰海域,并向北逐渐降低。2014年10月～11月调查海域绿藻显微繁殖体数量变化不明显,然而,12月份,其数量显著增加,尤其在如东及大丰海域。2014年11月如东和大丰海域水样中绿藻显微繁殖体丰度分别为16 ind/L和34 ind/L,12月绿藻显微繁殖体丰度上升至62 ind/L和72 ind/L。2014年11月如东和大丰海域泥样中绿藻显微繁殖体丰度分别为7 ind/L和10 ind/20g,12月绿藻显微繁殖体丰度上升至18 ind/L和28 ind/20g。并且靠近紫菜养殖海域的R1、R2、D2和D3站位绿藻显微繁殖体数量显著升高,12月份,紫菜养殖筏架上已经出现附生绿藻。因此,我们推断紫菜养殖筏架上的附生绿藻释放生殖细胞,可以使该海域绿藻显微繁殖体能以更多的机会度过冬季恶劣的环境,为下年的绿潮暴发提供了物质条件。The monthly surveys were conducted along the west coasts of Yellow Sea during October to December 2014 to study the temporal and spatial distribution features of green algae micro-propagules in water and sediment after the large-scale green tide in Yellow Sea. The results showed that there was an evident temporal and spatial variation of the green algae micro-propagules in the survey area. The high values were presented mainly in Dafeng and Rudong area. The spatial distribution of green algae micro-propagules incread gradually from south to north in the invested area. There was no significant change on the abundance in October and November of 2014. However,it significantly increasd at Dafeng and Rudong area in December. In the coastal water of Rudong and Dafeng,the desenties of green algae micro-propagules in the water were 16 and 34 ind/L,respectively,in November and increased to 62 and 72 ind/L in De-cember. The denseties of green algae micro-propagules in the sediment were 7and 10 ind/20 g,respectively,in November and increased to 18 and 28 ind/20 g in December. As shown in this research,the quantity of green algae micropropagules significantly increasd at the stations of R1、R2、D2 and D3 near the Pyropia aquaculture area. Feuthermore, green algae attached on the Pyropia aquaculture rafts have appeared in December. Therefore,it was suggested that the micro-propagules released from the green algae attached on the Pyropia aquaculture rafts may survive through the winter,and serve as the seed stock for the following spring bloom.

关 键 词：黄海 绿潮 绿藻 显微繁殖体 紫菜养殖 

分 类 号：Q178.53[生物学—水生生物学]