naa a22 4500 510754325 CHVBK 20180411083117.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s13131-013-0301-9 doi (NATIONALLICENCE)springer-10.1007/s13131-013-0301-9 Variations in silicate concentration affecting photosynthetic carbon fixation by spring phytoplankton assemblages in surface water of the Strait of Malacca [Elektronische Daten] [Gang Li, Qiang Lin, Pingping Shen, Guangyan Ni, Xingyu Song, Shengfu Wang, Yanzhi Fan, Liangmin Huang, Yehui Tan] 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 µg/L at the northwest entrance of the SoM to a maximal 0.63 µg/L at narrowest section, and decreased to 0.10 µg/L at the southeast entrance. Photosynthetic carbon fixation by phytoplankton coincided well with Chl a biomass, and increased from 10.8 to 22.3 µg C/(L·d), then decreased to 9.21 µg C/(L·d); while the carbon fixation rate showed an inverse pattern to the changes of Chl a, and decreased from 87.1 to 35.5 µgC/(µgChla·d) and increased thereafter to 95.3 µg C/(µg Chl a·d). Picophytoplankton cells (<3 µm) 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. The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg, 2013 photosynthetic carbon fixation nationallicence phytoplankton nationallicence the Strait of Malacca nationallicence Li Gang Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut Lin Qiang Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut Shen Pingping Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut Ni Guangyan Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, 510160, Guangzhou, China aut Song Xingyu Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut Wang Shengfu Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut Fan Yanzhi aut Huang Liangmin Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut Tan Yehui Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut Acta Oceanologica Sinica The Chinese Society of Oceanography 32/4(2013-04-01), 77-81 0253-505X 32:4<77 2013 32 13131 https://doi.org/10.1007/s13131-013-0301-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s13131-013-0301-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Gang Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut NATIONALLICENCE 700 1- Lin Qiang Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut NATIONALLICENCE 700 1- Shen Pingping Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut NATIONALLICENCE 700 1- Ni Guangyan Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, 510160, Guangzhou, China aut NATIONALLICENCE 700 1- Song Xingyu Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut NATIONALLICENCE 700 1- Wang Shengfu Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut NATIONALLICENCE 700 1- Fan Yanzhi aut NATIONALLICENCE 700 1- Huang Liangmin Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut NATIONALLICENCE 700 1- Tan Yehui Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut NATIONALLICENCE 773 0- Acta Oceanologica Sinica The Chinese Society of Oceanography 32/4(2013-04-01), 77-81 0253-505X 32:4<77 2013 32 13131 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer