Difference of planktonic ciliate communities of the tropical West Pacific, the Bering Sea and the Arctic Ocean |
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| Authors: | Chaofeng Wang Haibo Li Zhiqiang Xu Shan Zheng Qiang Hao Yi Dong Li Zhao Wuchang Zhang Yuan Zhao G&#;rald Gr&#;gori Tian Xiao |
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| Institution: | CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy ofSciences, Qingdao 266071, China;Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China;University of Chinese Academy of Sciences, Beijing 100049, China;Center for Ocean Mega-Science, Chinese Academ;CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy ofSciences, Qingdao 266071, China;Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China;Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China;Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China;Jiaozhou Bay Marine Ecosystem Research Station, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou 310012, China;Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China;Aix-Marseille University, Toulon University, CNRS, IRD, Mediterranean Institute of Oceanology UM110, Marseille 13288, France |
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| Abstract: | Ciliates are important components in planktonic food webs, but our understanding of their community structures in different oceanic water masses is limited. We report pelagic ciliate community characteristics in three seas: the tropical West Pacific, the Bering Sea and the Arctic Ocean. Planktonic ciliate abundance had “bimodal-peak”, “surface-peak” and “DCM (deep chlorophyll a maximum layer)-peak” vertical distribution patterns in the tropical West Pacific, the Bering Sea and the Arctic Ocean, respectively. The abundance proportion of tintinnid to total ciliate in the Bering Sea (42.6%) was higher than both the tropical West Pacific (7.8%) and the Arctic Ocean (2.0%). The abundance proportion of small aloricate ciliates (10–20 µm size-fraction) in the tropical West Pacific was highest in these three seas. The Arctic Ocean had higher abundance proportion of tintinnids in larger LOD (lorica oral diameter) size-class. Proportion of redundant species increased from the Arctic Ocean to the tropical West Pacific. Our result provided useful data to further understand ecology roles of planktonic ciliates in different marine habitats. |
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| Keywords: | planktonic ciliates vertical distribution community structure tropical West Pacific Bering Sea Arctic Ocean |
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