海洋生物学

Comparisons of surface Chl a and primary productivity along three transects of the southern South China Sea, northern Java Sea and eastern Indian Ocean in April 2011*

  • YI Rong ,
  • KE Zhi-xin ,
  • SONG Xing-yu ,
  • SHEN Ping-ping ,
  • WANG Sheng-fu ,
  • FAN Yan-zhi ,
  • HUANG Liang-min ,
  • TAN Ye-hui ,
  • LI Gang
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  • Key Laboratory of Tropical Marine Bio-resources, Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou510301, China

收稿日期: 2013-12-26

  修回日期: 2014-05-01

  网络出版日期: 2015-01-07

基金资助

National Natural Science Foundation of China (41206132, 41276162, 41130855); Chinese Academy of Sciences Strategic Pilot Science and Technology (XDA11020202, XDA05030403); National Project of Basic Sciences and Technology (2012FY112400, 2013FY111200); Chinese Academy of Sciences Knowledge Innovation Program (SQ201115); Natural Science Foundation of Guangdong Province (S2011040000151)
*The authors thank the two anonymous reviewers who helped to improve the manuscript, thank Dr. Miranda Corkum for polishing English, thank Kaizhi Li and Shuai Xing for their assistance with the experiments, and thank the captain and crew of R/V Shiyan Ⅰ for their logistic support.

Comparisons of surface Chl a and primary productivity along three transects of the southern South China Sea, northern Java Sea and eastern Indian Ocean in April 2011*

  • YI Rong ,
  • KE Zhi-xin ,
  • SONG Xing-yu ,
  • SHEN Ping-ping ,
  • WANG Sheng-fu ,
  • FAN Yan-zhi ,
  • HUANG Liang-min ,
  • TAN Ye-hui ,
  • LI Gang
Expand
  • Key Laboratory of Tropical Marine Bio-resources, Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou510301, China

Received date: 2013-12-26

  Revised date: 2014-05-01

  Online published: 2015-01-07

Supported by

National Natural Science Foundation of China (41206132, 41276162, 41130855); Chinese Academy of Sciences Strategic Pilot Science and Technology (XDA11020202, XDA05030403); National Project of Basic Sciences and Technology (2012FY112400, 2013FY111200); Chinese Academy of Sciences Knowledge Innovation Program (SQ201115); Natural Science Foundation of Guangdong Province (S2011040000151)
*The authors thank the two anonymous reviewers who helped to improve the manuscript, thank Dr. Miranda Corkum for polishing English, thank Kaizhi Li and Shuai Xing for their assistance with the experiments, and thank the captain and crew of R/V Shiyan Ⅰ for their logistic support.

摘要

Results are presented about the changes in chlorophyll a density, carbon fixation and nutrient levels in the surface waters of three transects of the southern South China Sea (SCS), northern Java Sea (JS) and eastern Indian Ocean (IO) during April 5~16 of 2011. The in situ Chl a concentration and carbon fixation showed decreasing trends from high to low latitude along the three transects, while the photosynthetic rate of phytoplankton estimated from 14C incorporation displayed no simple variation with latitude. Chl a concentration and carbon fixation in the IO water was lower than that in the JS water. Higher salinity and lower contents of dissolved inorganic nitrogen (DIN) and silicate (SiO32-) characterized the IO water as compared to the SCS or JS water, and the PO43- content was lower in the IO water than in the SCS or JS water in most cases. Our results also indicate the importance of DIN and SiO32- concentrations for the geographical changes in phytoplankton biomass and primary productivity among the three regions.

本文引用格式

YI Rong , KE Zhi-xin , SONG Xing-yu , SHEN Ping-ping , WANG Sheng-fu , FAN Yan-zhi , HUANG Liang-min , TAN Ye-hui , LI Gang . Comparisons of surface Chl a and primary productivity along three transects of the southern South China Sea, northern Java Sea and eastern Indian Ocean in April 2011*[J]. 热带海洋学报, 2014 , 33(6) : 61 -67 . DOI: 10.11978/j.issn.1009-5470.2014.06.008

Abstract

Results are presented about the changes in chlorophyll a density, carbon fixation and nutrient levels in the surface waters of three transects of the southern South China Sea (SCS), northern Java Sea (JS) and eastern Indian Ocean (IO) during April 5~16 of 2011. The in situ Chl a concentration and carbon fixation showed decreasing trends from high to low latitude along the three transects, while the photosynthetic rate of phytoplankton estimated from 14C incorporation displayed no simple variation with latitude. Chl a concentration and carbon fixation in the IO water was lower than that in the JS water. Higher salinity and lower contents of dissolved inorganic nitrogen (DIN) and silicate (SiO32-) characterized the IO water as compared to the SCS or JS water, and the PO43- content was lower in the IO water than in the SCS or JS water in most cases. Our results also indicate the importance of DIN and SiO32- concentrations for the geographical changes in phytoplankton biomass and primary productivity among the three regions.

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