Variations in silicate concentration affecting photosynthetic carbon fixation by spring phytoplankton assemblages in surface water of the Strait of Malacca
[Li Gang; Lin Qiang; Shen Pingping; Song Xingyu; Wang Shengfu; Huang Liangmin; Tan Yehui] Chinese Acad Sci, Key Lab Marine Bioresources Sustainable Utilizat, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Ni Guangyan] Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Ec, South China Bot Garden, Guangzhou 510160, Guangdong, Peoples R China; tanyh@scsio.ac.cn
2013
发表期刊ACTA OCEANOLOGICA SINICA
ISSN0253-505X
卷号32期号:4页码:77-81
摘要The Strait of Malacca (SoM), the world's busiest sea-route, is increasingly polluted as the rapid development of world trades, affecting phytoplankton primary productivity therein. The variations of surface phytoplankton biomass, size-structure and carbon fixation were investigated across the SoM during the spring period (May 4 to 9, 2011). Chlorophyll a concentration increased from 0.12 A mu g/L at the northwest entrance of the SoM to a maximal 0.63 A mu g/L at narrowest section, and decreased to 0.10 A mu g/L at the southeast entrance. Photosynthetic carbon fixation by phytoplankton coincided well with Chl a biomass, and increased from 10.8 to 22.3 A mu g C/(L center dot d), then decreased to 9.21 A mu g C/(L center dot d); while the carbon fixation rate showed an inverse pattern to the changes of Chl a, and decreased from 87.1 to 35.5 A mu gC/(A mu gChla center dot d) and increased thereafter to 95.3 A mu g C/(A mu g Chl a center dot d). Picophytoplankton cells (< 3 A mu m) contributed to more than 60% and 50% of the total Chl a and carbon fixation at both the entry waters; while the contributions of pico-cells decreased sharply to the minimum of 18.3% and 27.5% at the narrowest part of the SoM. In particular, our results showed that the silicate concentration positively regulated Chl a biomass and carbon fixation, reflecting that the higher silicate favoured the growth of phytoplankton and thus led to higher primary production in this strait.
部门归属LMB
关键词Photosynthetic Carbon Fixation Phytoplankton The Strait Of Malacca
学科领域Oceanography
资助者Foundation item: The National Natural Science Foundation of China under contract Nos 41130855, 41206132 and 41276162; the Natural Science Foundation of Guangdong under contract No. S2011040000151; CAS Knowledge Innovation Program under contract No. SQ201115; National Project of Sciences and Technology under contract No. 2008FY110100; CAS Strategic Pilot Science and Technology under contract No. X-DA05030403. ; Foundation item: The National Natural Science Foundation of China under contract Nos 41130855, 41206132 and 41276162; the Natural Science Foundation of Guangdong under contract No. S2011040000151; CAS Knowledge Innovation Program under contract No. SQ201115; National Project of Sciences and Technology under contract No. 2008FY110100; CAS Strategic Pilot Science and Technology under contract No. X-DA05030403. ; Foundation item: The National Natural Science Foundation of China under contract Nos 41130855, 41206132 and 41276162; the Natural Science Foundation of Guangdong under contract No. S2011040000151; CAS Knowledge Innovation Program under contract No. SQ201115; National Project of Sciences and Technology under contract No. 2008FY110100; CAS Strategic Pilot Science and Technology under contract No. X-DA05030403. ; Foundation item: The National Natural Science Foundation of China under contract Nos 41130855, 41206132 and 41276162; the Natural Science Foundation of Guangdong under contract No. S2011040000151; CAS Knowledge Innovation Program under contract No. SQ201115; National Project of Sciences and Technology under contract No. 2008FY110100; CAS Strategic Pilot Science and Technology under contract No. X-DA05030403.
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语种英语
资助者Foundation item: The National Natural Science Foundation of China under contract Nos 41130855, 41206132 and 41276162; the Natural Science Foundation of Guangdong under contract No. S2011040000151; CAS Knowledge Innovation Program under contract No. SQ201115; National Project of Sciences and Technology under contract No. 2008FY110100; CAS Strategic Pilot Science and Technology under contract No. X-DA05030403. ; Foundation item: The National Natural Science Foundation of China under contract Nos 41130855, 41206132 and 41276162; the Natural Science Foundation of Guangdong under contract No. S2011040000151; CAS Knowledge Innovation Program under contract No. SQ201115; National Project of Sciences and Technology under contract No. 2008FY110100; CAS Strategic Pilot Science and Technology under contract No. X-DA05030403. ; Foundation item: The National Natural Science Foundation of China under contract Nos 41130855, 41206132 and 41276162; the Natural Science Foundation of Guangdong under contract No. S2011040000151; CAS Knowledge Innovation Program under contract No. SQ201115; National Project of Sciences and Technology under contract No. 2008FY110100; CAS Strategic Pilot Science and Technology under contract No. X-DA05030403. ; Foundation item: The National Natural Science Foundation of China under contract Nos 41130855, 41206132 and 41276162; the Natural Science Foundation of Guangdong under contract No. S2011040000151; CAS Knowledge Innovation Program under contract No. SQ201115; National Project of Sciences and Technology under contract No. 2008FY110100; CAS Strategic Pilot Science and Technology under contract No. X-DA05030403.
WOS记录号WOS:000317297100010
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文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/11047
专题中科院海洋生物资源可持续利用重点实验室
通讯作者tanyh@scsio.ac.cn
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[Li Gang,Lin Qiang,Shen Pingping,et al. Variations in silicate concentration affecting photosynthetic carbon fixation by spring phytoplankton assemblages in surface water of the Strait of Malacca[J]. ACTA OCEANOLOGICA SINICA,2013,32(4):77-81.
APA [Li Gang.,Lin Qiang.,Shen Pingping.,Song Xingyu.,Wang Shengfu.,...&tanyh@scsio.ac.cn.(2013).Variations in silicate concentration affecting photosynthetic carbon fixation by spring phytoplankton assemblages in surface water of the Strait of Malacca.ACTA OCEANOLOGICA SINICA,32(4),77-81.
MLA [Li Gang,et al."Variations in silicate concentration affecting photosynthetic carbon fixation by spring phytoplankton assemblages in surface water of the Strait of Malacca".ACTA OCEANOLOGICA SINICA 32.4(2013):77-81.
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