Physicochemical conditions in affecting the distribution of spring phytoplankton community  

作　　者：魏玉秋 刘海娇 张晓东 薛冰 MUNIR Sonia 孙军 

机构地区：[1]College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, China [2]Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science and Technology, Tianjin 300457, China [3]Institute of Marine Science and Technology, Shandong University, Jinan 250110, China

出　　处：《Chinese Journal of Oceanology and Limnology》2017年第6期1342-1361,共20页中国海洋湖沼学报（英文版）

基　　金：Supported by the National Key Scientifi c Research Program(No.2015CB954002);the National Natural Science Foundation of China(Nos.41276124,41676112);the University Innovation Team Training Program for Tianjin(No.TD12-5003);the Cheung Kong Scholars Program and of China;Exploration Program of Ocean with Science and Technology of Tianjin(KJXH2013-22)to Jun Sun

摘　　要：To better understand the physicochemical conditions in af fecting regional distribution of phytoplankton community, one research cruise was carried out in the Bohai Sea and Yellow Sea during 3 rd and 23 th May, 2010. The phytoplankton community, including Bacillariophyta(105 taxa), Pyrrophyta(54 taxa), Chrysophyta(1 taxon) and Chlorophyta(2 taxa), had been identified and clearly described from six ecological provinces. And, the six ecological provinces were partitioned based on the top twenty dominant species related with notable physicochemical parameters. In general, the regional distributions of phytoplankton ecological provinces were predominantly influenced by the physicochemical properties induced by the variable water masses and circulations. The predominant diatoms in most of water samples showed well adaptability in turbulent and eutrophic conditions. However, several species of dinoflagellates e.g., Protoperidinium conicum, Protoperidinium triestinum, Protoperidinium sp. and Gymnodinium lohmanni preferred warmer, saltier and nutrient-poor environment. Moreover, the dinoflagellates with high frequency in the Yellow Sea might be transported from the Yellow Sea Warm Current. The horizontal distribution of phytoplankton was depicted by diatoms and controlled by phosphate concentration, while the vertical distribution was mainly supported by light and nutrients availability in the subsurface and bottom layers, respectively.To better understand the physicochemical conditions in affecting regional distribution of phytoplankton community, one research cruise was carried out in the Bohai Sea and Yellow Sea during 3^rd and 23^th May, 2010. The phytoplankton community, including Bacillariophyta （105 taxa）, Pyrrophyta （54 taxa）, Chrysophyta （1 taxon） and Chlorophyta （2 taxa）, had been identified and clearly described from six ecological provinces. And, the six ecological provinces were partitioned based on the top twenty dominant species related with notable physicochemical parameters. In general, the regional distributions of phytoplankton ecological provinces were predominantly influenced by the physicochemical properties induced by the variable water masses and circulations. The predominant diatoms in most of water samples showed well adaptability in turbulent and eutrophic conditions. However, several species of dinoflagellates e.g., Protoperidinium conicum, Protoperidinium triestinum, Protoperidinium sp. and Gymnodinium lohmanni preferred warmer, saltier and nutrient-poor environment. Moreover, the dinoflagellates with high frequency in the Yellow Sea might be transported from the Yellow Sea Warm Current. The horizontal distribution of phytoplankton was depicted by diatoms and controlled by phosphate concentration, while the vertical distribution was mainly supported by light and nutrients availability in the subsurface and bottom layers, respectively.

关 键 词：PHYTOPLANKTON physicochemical conditions ecological provinces Bohai Sea Yellow Sea 

分 类 号：Q948.8[生物学—植物学]