Flow cytometry investigation of picoplankton across latitudes and along the circum Antarctic Ocean

查看全文 作　　者：LIN [1,2]Ling;HE [2]Jianfeng;ZHAO [1]Yunlong;ZHANG [2]Fang;CAI [2]Minghong

机构地区：[1]College of Life Science,East China Normal University,Shanghai 200062,China;[2]Key Laboratory for Polar Science of State Oceanic Administration,Polar Research Institute of China,Shanghai 200136,China

出　　处：《Acta Oceanologica Sinica》索引2012年第31卷第1期,共9页

基　　金：The National Natural Science Foundation of China under contract Nos 40576002 and 40006010;the Key International S & T Cooperation Projects under contract No.2008DFA20420;the Youth Scientific and Technological Innovation Foundation of Polar Research Institute of China under contract No.JDQ200802;the Polar Strategic Research Foundation under contract No.2008209;the LMEB Open Research Foundation under contract No.LMEB200902;the PhD Program Scholarship Fund of ECNU under contract No.2010041 摘　　要：Using a flow cytometer (FCM) onboard the R/V Xuelong during the 24th Chinese Antarctic cruise, picoplankton community structure and biomass in the surface water were examined along the latitude and around the Antarctic Ocean. Salinity and temperature were automatically recorded and total Chl a was determined. Along the cruise, the abundance of Synechococcus, Prochlorococcus, pico-eukaryotes and heterotrophic bacteria ranged in 0.001-1.855 × 10 8 ind./L, 0.000-2.778 × 10 8 ind./L, 0.002-1.060 × 10 8 ind./L and 0.132-27.073 × 10 8 ind./L, respectively. Major oceanic distribution of Synechococcus and Prochlorococcus appeared between latitudes 30 N and 30 S. Prochlorococcus was mainly influenced by water temperature, water mass combination and freshwater inflow. Meanwhile, Synechococcus distribution was significantly associated with landing freshwater inflow. Pico-eukaryotes and heterotrophic bacteria were distributed all over the oceans, but with a relatively low abundance in the high latitudes of the Antarctic Ocean. Principal Component Analysis showed that at same latitude of Atlantic Ocean and Indian Ocean, picoplankton distribution and constitution were totally different, geographical location and different water masses combination would be main reasons. 关键词：微型浮游生物高纬度地区流式细胞仪南极海域生物群落结构原绿球藻真核生物

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Flow cytometry investigation of picoplankton across latitudes and along the circum Antarctic Ocean

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