|本期目录/Table of Contents|

[1]尚毅威,肖武鹏,柳 欣*,等.南海SEATS站超微型浮游植物类群及其碳生物量和叶绿素a浓度比值的变化[J].厦门大学学报(自然科学版),2018,57(06):811-818.[doi:10.6043/j.issn.0438-0479.201805036]
 SHANG Yiwei,XIAO Wupeng,LIU Xin*,et al.Variations of Pico-phytoplankton Groups and Carbon to Chlorophyll-a Ratios in the South China Sea at the SEATS Station[J].Journal of Xiamen University(Natural Science),2018,57(06):811-818.[doi:10.6043/j.issn.0438-0479.201805036]





Variations of Pico-phytoplankton Groups and Carbon to Chlorophyll-a Ratios in the South China Sea at the SEATS Station
尚毅威肖武鹏柳 欣*黄邦钦
厦门大学 环境与生态学院,近海海洋环境科学国家重点实验室,福建省海陆界面生态环境重点实验室,福建 厦门 361102
SHANG YiweiXIAO WupengLIU Xin*HUANG Bangqin
State Key Laboratory of Marine Environmental Science,Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies,College of the Environment & Ecology,Xiamen University,Xiamen 361102,China
南海 东南亚时间序列观测站 超微型浮游植物 C:Chl-a
South China Sea South East Asian Time-series Study station pico-phytoplankton C:Chl-a
P 76
浮游植物的碳生物量和叶绿素a浓度比值(简记为C:Chl-a)是海洋生物地球化学过程中的关键基础参数,在自然环境下有极大的变化.通过收集和整理近年来南海的东南亚时间序列观测(the South East Asian Time-series Study,SEATS)站的现场调查资料,对比分析了超微型浮游植物中三大类群的变化及其总C:Chl-a的垂直分布.叶绿素a浓度通过高效液相色谱分析获得,碳生物量依据文献报道的同纬度海区的C:Chl-a计算或基于流式细胞技术分析细胞丰度与体积后经换算得到.结果显示基于这两种方法计算得到的超微型浮游植物三大类群的碳生物量之间均存在极显著正相关(n=41,p<0.001),其中聚球藻(Synechococcus)基于高效液相色谱分析获得的碳生物量有一定的高估,而原绿球藻(Prochlorocoecus)和超微型真核藻类(pico-eukaryotes)的数据结果则基本一致,这种差异可能与聚球藻的光适应机制有关.通过计算南海SEATS站全粒径浮游植物的C:Chl-a,发现其呈现随深度递减的变化趋势,但相对于同纬度海区整体上偏小,进而讨论了南海SEATS站浮游植物时空分布模式和C:Chl-a变化的原因.
Carbon to chlorophyll-a(C:Chl-a)ratio is the most critical phytoplankton parameter in marine biogeochemical processes,but highly uncertain in the natural environment.Here,we took the South East Asian Time-series Study(SEATS)station located in the northern South China Sea basin with relatively stable environmental conditions as our study area.By compiling the observational data collected in recent years,we compared and analyzed the carbon biomass of three major pico-phytoplankton groups estimated from high performance liquid chromatography-chemical taxonomy(HPLC-CHEMTAX)analysis and flow cytometry(FCM)based cell abundances as well as cellular bio-volumes.The carbon biomass estimated from the two approaches all exhibited highly positive correlations of the three major picophytoplankton groups(n=41,p<0.001).According to the quantitative results,the carbon biomass of Synechococcus estimated by HPLC-CHEMTAX analysis has a certain overestimation,while the carbon biomass of Prochlorococcus and pico-eukaryotes are basically consistent with the results based on FCM.This may result from the light adaptation mechanism of Synechococcus.We calculated the phytoplankton total C:Chl-a in full size categories at SEATS in the South China Sea,and found that the C:Chl-a decreased with depth,and the overall value was relatively small compared with other marine ecosystems located at the same latitude.This paper systematically discussed the distributional pattern of phytoplankton community at the SEATSstation both spatially and temporally,and the likely reasons for the variations in C:Chl-a.


[1] 黄邦钦,柳欣.边缘海浮游生态系统对生物泵的调控作用[J].地球科学进展,2015,30(3):385-395.
[2] CLOERN J E,GRENZ C,VIDERGARLUCAS L.An empirical model of the phytoplankton chlorophyll:carbon ratio:the conversion factor between productivity and growth rate[J].Limnology and Oceanography,1995,40(7):1313-1321.
[3] SATHYENDRANATH S,STUART V,NAIR A,et al.Carbon-to-chlorophyll ratio and growth rate of phyto-plankton in the sea[J].Marine Ecology Progress Series,2009,383:73-84.
[4] BEHRENFELD M J,O’MALLEY R T,BOSS E S,et al.Revaluating ocean warming impacts on global phyto-plankton[J].Nature Climate Change,2015,6(3):323-330.
[5] STRICKLAND J D H.Measuring the production of marine phytoplankton[M].Ottawa:Fisheries Research Board of Canada,1960:172.
[6] GEIDER R J,MACINTYRE H L,KANA T M.A dynamic model of photoadaptation in phytoplankton[J].Limnology and Oceanography,1996,41(1):1-15.
[7] GEIDER R J,MACINTYRE H L,KANA T M.A dynamic regulatory model of phytoplanktonic acclimation to light,nutrients,and temperature[J].Limnology and Oceano-graphy,1998,43(4):679-694.
[8] LI Q P,FRANKS P J S,LANDRY M R,et al.Modeling phytoplankton growth rates and chlorophyll to carbon ratios in California coastal and pelagic ecosystems[J].Journal of Geophysical Research,2010,115:G04003.
[9] JAKOBSEN H H,MARKAGER S.Carbon-to-chlorophyll ratio for phytoplankton in temperate coastal waters:Seasonal patterns and relationship to nutrients[J].Limnology and Oceanography,2016,61(5):1853-1868.
[10] HARRISON P J,ZINGONE A,MICKELSON M J,et al.Cell volumes of marine phytoplankton from globally distributed coastal data sets[J].Estuarine,Coastal and Shelf Science,2015,162:130-142.
[11] WONG G,KU T,MULHOLLAND M,et al.The South East Asian Time-series Study(SEATS)and the biogeo-chemistry of the South China Sea:an overview[J].Deep Sea Research Part Ⅱ:Topical Studies in Oceanography,2007,54(14/15):1434-1447.
[12] XIAO W,WANG L,LAWS E,et al.Realized niches explain spatial gradients in seasonal abundance of phyto-plankton groups in the South China Sea[J].Progress in Oceanography,2018,162:223-229.
[13] HO T Y,PAN X,YANG H H,et al.Controls on temporal and spatial variations of phytoplankton pigment distribution in the northern South China Sea[J].Deep Sea Research Part Ⅱ:Topical Studies in Oceanography,2015,117:65-85.
[14] LIU H,CHANG J,TSENG C,et al.Seasonal variability of picoplankton in the northern South China Sea at the SEATS station[J].Deep Sea Research Part Ⅱ:Topical Studies in Oceanography,2007,54(14/15):1602-1616.
[15] CHEN B Z,WANG L,SONG S Q,et al.Comparisons of picophytoplankton abundance,size,and fluorescence between summer and winter in northern South China Sea[J].Continental Shelf Research,2011,31(14):1527-1540.
[16] SUN J,LIU D Y.Geometric models for calculating cell biovolume and surface area for phytoplankton[J].Journal of Plankton Research,2003,25(11):1331-1346.
[17] CHANG J,SHIAH F,GONG G,et al.Cross-shelf variation in carbon-to-chlorophyll a ratios in the East China Sea,summer 1998[J].Deep Sea Research Part Ⅱ:Topical Studies in Oceanography,2003,50(6/7):1237-1247.
[18] LI Q P,WANG Y,DONG Y,et al.Modeling long-term change of planktonic ecosystems in the northern South China Sea and the upstream Kuroshio Current[J].Journal of Geophysical Research:Oceans,2015,120(6):3913-3936.
[19] LANDRY M R,SELPH K E,TAYLOR A G,et al.Phytoplankton growth,grazing and production balances in the HNLC equatorial Pacific[J].Deep Sea Research Part Ⅱ:Topical Studies in Oceanography,2011,58(3/4):524-535.
[20] CHEN B,ZHENG L,HUANG B,et al.Seasonal and spatial comparisons of phytoplankton growth and mortality rates due to microzooplankton grazing in the northern South China Sea[J].Biogeosciences,2013,10(4):2775-2785.
[21] HUANG B Q,HU J,XU H Z,et al.Phytoplankton community at warm eddies in the northern South China Sea in winter 2003/2004[J].Deep Sea Research Part Ⅱ:Topical Studies in Oceanography,2010,57(19/20):1792-1798.
[22] UITZ J,CLAUSTRE H,GENTILI B,et al.Phyto-plankton class-specific primary production in the world’s oceans:seasonal and interannual variability from satellite observations[J].Global Biogeochemical Cycles,2010,24:GB3016.
[23] CHAO S Y,SHAW P T,WU S Y.El Ni?o modulation of the South China Sea circulation[J].Progress in Oceanography,1996,38(1):51-93.
[24] DU C,LIU Z,KAO S J,et al.Diapycnal fluxes of nutrients in an oligotrophic oceanic regime:the South China Sea[J].Geophysical Research Letters,2017,44(22):11510-11518.
[25] CHEN Y L.Spatial and seasonal variations of nitrate-based new production and primary production in the South China Sea[J].Deep Sea Research Part Ⅰ:Oceano-graphic Research Papers,2005,52(2):319-340.
[26] WONG G,TSENG C,WEN L,et al.Nutrient dynamics and N-anomaly at the SEATS station[J].Deep Sea Research Part Ⅱ:Topical Studies in Oceanography,2007,54(14/15):1528-1545.
[27] WU W,HUANG B,ZHONG C.Photosynthetic pico-eukaryote assemblages in the South China Sea from the Pearl River estuary to the SEATS station[J].Aquatic Microbial Ecology,2014,71(3):271-284.
[28] WU W X,WANG L,LIAO Y,et al.Spatial and seasonal distributions of photosynthetic picoeukaryotes along an estuary to basin transect in the northern South China Sea[J].Journal of Plankton Research,2017,39(3):423-425.
[29] XIU P,CHAI F,SHI L,et al.A census of eddy activities in the South China Sea during 1993—2007[J].Journal of Geophysical Research,2010,115:C03012.
[30] LEE I H,WANG Y H,YANG Y,et al.Temporal variability of internal tides in the northeast South China Sea[J].Journal of Geophysical Research,2012,117:C02013.
[31] WANG L,HUANG B,CHIANG K P,et al.Physical-biological coupling in the western South China Sea:the response of phytoplankton community to a mesoscale cyclonic eddy[J].PLoS One,2016,11(4):e0153735.
[32] WU W,WANG L,LIAO Y,et al.Microbial eukaryotic diversity and distribution in a river plume and cyclonic eddy-influenced ecosystem in the South China Sea[J].Microbiologyopen,2015,4(5):826-840.
[33] CHEN B Z,LIU H B,LANDRY M R,et al.Close coupling between phytoplankton growth and microzooplankton grazing in the western South China Sea[J].Limnology and Oceanography,2009,54(4):1084-1097.
[34] GEIDER R J.Light and temperature-dependence of the carbon to chlorophyll-a ratio in microalgae and cyano-bacteria:implications for physiology and growth of phytoplankton[J].New Phytologist,1987,106(1):1-34.
[35] GEIDER R J,MACINTYRE H L,KANA T M.Dynamic model of phytoplankton growth and acclimation:responses of the balanced growth rate and the chlorophyll a:carbon ratio to light,nutrient-limitation and temperature[J].Marine Ecology Progress Series,1997,148(1/2/3):187-200.


收稿日期:2018-05-25 录用日期:2018-10-04
Citation:SHANG Y W,XIAO W P,LIU X,et al.Variations of pico-phytoplankton groups and carbon to chlorophyll-a ratios in the South China Sea at the SEATS station[J].J Xiamen Univ Nat Sci,2018,57(6):811-818.(in Chinese)
更新日期/Last Update: 1900-01-01