RESEARCH ARTICLE
Boreal Tintinnid Assemblage in the Northwest Pacific and Its Connection with the Japan Sea in Summer 2014 Haibo Li1,2,4, Zhiqiang Xu1,2,4, Wuchang Zhang1,2*, Shaoqing Wang3, Guangtao Zhang1,2, Tian Xiao1,2 1 Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China, 2 Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China, 3 The Marine Biological Museum of the Chinese Academy of Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China, 4 University of Chinese Academy of Sciences, Beijing, China * [email protected]
Abstract OPEN ACCESS Citation: Li H, Xu Z, Zhang W, Wang S, Zhang G, Xiao T (2016) Boreal Tintinnid Assemblage in the Northwest Pacific and Its Connection with the Japan Sea in Summer 2014. PLoS ONE 11(4): e0153379. doi:10.1371/journal.pone.0153379 Editor: Jiang-Shiou Hwang, National Taiwan Ocean University, TAIWAN Received: August 6, 2015 Accepted: March 29, 2016 Published: April 7, 2016 Copyright: © 2016 Li et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Data Availability Statement: All relevant data are within the paper and its Supporting Information files. Funding: Chinese Polar Environment Comprehensive investigation & Assessment Programs (CHINARE2011-2015)”, Strategic Priority Research Program-Western Pacific Ocean System: Structure, Dynamics and Consequences (Grant No. XDA11030202.2) and “China Arctic Strategic Fund (20140304).
Tintinnids are planktonic ciliates that play an important role in marine ecosystem. According to their distribution in the world oceans, tintinnid genera were divided into several biogeographical types such as boreal, warm water, austral and neritic. Therefore, the oceanic tintinnid assemblage could be correspondingly divided into boreal assemblage, warm water assemblage and austral assemblage. The purpose of this study was to investigate the characteristics of boreal tintinnid assemblage in the Northwest Pacific and the Arctic, and to identify the connection between boreal tintinnid assemblage and neighboring assemblages. Surface water samples were collected along a transect from the East China Sea to the Chukchi Sea in summer 2014. According to the presence of boreal genera and warm water genera, three tintinnid assemblages (the East China Sea neritic assemblage, the Japan Sea warm water assemblage, and the boreal assemblage) were identified along the transect. The boreal assemblage extended from the Chukchi Sea to the waters north of the Sōya Strait. Densities peaks occurred at stations in the two branches of the Alaska Current and decreased both northward and southward. The densities were
Boreal Tintinnid Assemblage in the Northwest Pacific and Its Connection with the Japan Sea in Summer 2014 Haibo Li1,2,4, Zhiqiang Xu1,2,4, Wuchang Zhang1,2*, Shaoqing Wang3, Guangtao Zhang1,2, Tian Xiao1,2 1 Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China, 2 Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China, 3 The Marine Biological Museum of the Chinese Academy of Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China, 4 University of Chinese Academy of Sciences, Beijing, China * [email protected]
Abstract OPEN ACCESS Citation: Li H, Xu Z, Zhang W, Wang S, Zhang G, Xiao T (2016) Boreal Tintinnid Assemblage in the Northwest Pacific and Its Connection with the Japan Sea in Summer 2014. PLoS ONE 11(4): e0153379. doi:10.1371/journal.pone.0153379 Editor: Jiang-Shiou Hwang, National Taiwan Ocean University, TAIWAN Received: August 6, 2015 Accepted: March 29, 2016 Published: April 7, 2016 Copyright: © 2016 Li et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Data Availability Statement: All relevant data are within the paper and its Supporting Information files. Funding: Chinese Polar Environment Comprehensive investigation & Assessment Programs (CHINARE2011-2015)”, Strategic Priority Research Program-Western Pacific Ocean System: Structure, Dynamics and Consequences (Grant No. XDA11030202.2) and “China Arctic Strategic Fund (20140304).
Tintinnids are planktonic ciliates that play an important role in marine ecosystem. According to their distribution in the world oceans, tintinnid genera were divided into several biogeographical types such as boreal, warm water, austral and neritic. Therefore, the oceanic tintinnid assemblage could be correspondingly divided into boreal assemblage, warm water assemblage and austral assemblage. The purpose of this study was to investigate the characteristics of boreal tintinnid assemblage in the Northwest Pacific and the Arctic, and to identify the connection between boreal tintinnid assemblage and neighboring assemblages. Surface water samples were collected along a transect from the East China Sea to the Chukchi Sea in summer 2014. According to the presence of boreal genera and warm water genera, three tintinnid assemblages (the East China Sea neritic assemblage, the Japan Sea warm water assemblage, and the boreal assemblage) were identified along the transect. The boreal assemblage extended from the Chukchi Sea to the waters north of the Sōya Strait. Densities peaks occurred at stations in the two branches of the Alaska Current and decreased both northward and southward. The densities were
![[Report on the 139th Summer Conference of the Society of Northwest German Surgeons, June 19-21, 2014, in Bremen].](/assets/img/hold.png)
