title: Seasonal variations of phytoplankton assemblages and its relation to environmental variables in a scallop culture sea area of Bohai Bay, China.
abstract: Seasonal variations of phytoplankton assemblages were examined in a scallop culture sea area of Bohai Bay (China) with regard to some major physical and chemical variables. Samples were collected at three stations from July 2011 to September 2013. A total of 134 species belong to 4 phyla were identified, of which 104 were diatoms, 27 were dinoflagellates, 1 was euglenophyte and 2 were chrysophytes. The cells abundance in autumn (55.44×103cells/L) was higher than that in summer (6.99×103cells/L), spring (3.46×103cells/L) and winter (2.69×103cells/L). The Shannon-Wiener diversity index was higher in summer (3.06), followed by spring (3.02) and winter (2.91), and low in autumn (1.40). Results of canonical correspondence analysis showed that phosphate, salinity, temperature, silicate and DIN/SiO2ratio were the most important environmental factors influencing the variation of phytoplankton community structure. It is suggested that eutrophication resulted from scallop culture would cause a potential red tide risk.
authors: School of Life Sciences, Xiamen University, Xiamen 361102, China.
authors: Yang-Hang
authors: YH
authors: Chen
authors: School of Life Sciences, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China. Electronic address: gaoyh@xmu.edu.cn.
authors: Ya-Hui
authors: YH
authors: Gao
authors: School of Life Sciences, Xiamen University, Xiamen 361102, China; Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China.
authors: Chang-Ping
authors: CP
authors: Chen
authors: School of Life Sciences, Xiamen University, Xiamen 361102, China; Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China.
authors: Jun-Rong
authors: JR
authors: Liang
authors: School of Life Sciences, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China.
authors: Lin
authors: L
authors: Sun
authors: Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
authors: Yu
authors: Y
authors: Zhen
authors: Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
authors: Ling
authors: L
authors: Qiao
mesh_terms: D000818:Animals; D017756:Aquaculture / Q000379:methods*; D061006:Bays / Q000737:chemistry; D002681:China; D017377:Diatoms / Q000254:growth & development*; D004141:Dinoflagellida / Q000254:growth & development*; D004784:Environmental Monitoring / Q000379:methods*; D005068:Eutrophication; D049897:Pectinidae / Q000254:growth & development*; D010839:Phytoplankton / Q000254:growth & development*; D054712:Salinity; D012822:Silicon Dioxide / Q000737:chemistry; D013696:Temperature
chemical_list: D012822:Silicon Dioxide
keywords: Environmental factors; Phytoplankton assemblages; Red tide; Scallop culture; Seasonal variations