我国江苏如东岸基绿潮藻分布特征  

Distributing characteristics of green tide algae growing on settled sediment in Rudong coastal area

作　　者：张建恒[1,2] 陈丽平 霍元子[1,2] 田晓玲[1,2] 陈群芳[1,2] 于克锋[1,2] 胡翔[3] 杨建强[3] 房建孟[3] 马家海[1] 何培民[1,2] 

机构地区：[1]上海海洋大学水产与生命学院,上海201306 [2]上海海洋大学海洋科学研究院海洋生态环境与修复研究所,上海201306 [3]国家海洋局北海分局,山东青岛266033

出　　处：《海洋环境科学》2013年第1期1-5,共5页Marine Environmental Science

基　　金：国家自然科学基金(30371101);国家海洋局公益性行业科研专项(201205010);国家海洋局公益性行业科研专项(201105023);国家科技支撑计划项目课题(2012BAC07B07);优秀青年教师基金(SSC10001);博士启动基金(A-2400-10-0130)

摘　　要：总结了2010年江苏如东沿岸岸基绿潮藻分布调查结果。结果发现,如东紫菜养殖筏架、沿岸堤坝、养殖池塘和入海河道中均有大量绿潮藻分布;通过对江苏如东沿岸采集的15个绿潮藻样品进行ITS、5S rDNA间隔序列分析和形态观察,共鉴定出6种绿潮藻:浒苔(Ulva prolifera)、缘管浒苔(U.linza)、扁浒苔(U.compressa)、曲浒苔(U.flexuosa)、条浒苔(U.clathra-ta)和肠浒苔(U.intestinalis)。紫菜养殖筏架上未发现U.clathrata,其他5种绿潮藻均有生长。U.prolifera分布最广,河道、堤坝、池塘和紫菜筏架上均有分布,并在如东沿岸两个岸基位点发现了与2008年青岛大规模漂浮浒苔优势种序列一致的绿潮藻。紫菜养殖筏架、沿岸堤坝、养殖池塘和入海河道绿潮藻生物量(湿重)约为3.95×106kg、9.6×105kg、3.75×103kg和0.15×103kg。本论文为阐释绿潮发生机制及溯源提供了一定依据。The investigation of the green tide algae along the coastal area of Rudong in Jiangsu province was carried out in Apr. , 2010. The result showed that the green tide algae could grow well on the Porphyra cultivating rafts, the dams, fish culture ponds and rivers flowing into the ocean and the biomass of each area was 3.95 × 10^6 kg, 9.6× 10^5 kg, 3.75×10^63 kg and 0.15 ×10^3 kg, re- spectively. According to results of morphology observations and ITS, 5S rDNA sequences analysis of 15 samples of green tide algae collected from the four areas, totally 6 species were identified ： Ulva prolifera, U. linza, U. compressa, U. clathrata, U. flexuosa and U. intestinalis. All of them except U. clathrata were found on the Porphyra raft. U. prolifera was one of most widespread species. We collected U. prolifera at two spots at Rudong inshore area which had the same DNA sequence as the species that caused the green tide in 2008. This study may provide some data for the researches on the algal origin and the breakout mechanism of the green tide.

关 键 词：江苏如东 绿潮藻 岸基 浒苔 

分 类 号：Q948.5[生物学—植物学]