FN Archimer Export Format
PT J
TI Effects of phytoplankton community composition and productivity on sea surface pCO(2) variations in the Southern Ocean
BT 
AF TAKAO, Shintaro
   NAKAOKA, Shin-Ichiro
   HASHIHAMA, Fuminori
   SHIMADA, Keishi
   YOSHIKAWA-INOUE, Hisayuki
   HIRAWAKE, Toru
   KANDA, Jota
   HASHIDA, Gen
   SUZUKI, Koji
AS 1:1,2;2:1;3:3;4:3;5:2;6:4;7:3;8:5;9:2;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 Natl Inst Environm Studies, 16-2 Onogawa, Tsukuba, Ibaraki 3058506, Japan.
   Hokkaido Univ, Fac Environm Earth Sci, Kita Ku, North 10 West 5, Sapporo, Hokkaido 0600810, Japan.
   Tokyo Univ Marine Sci & Technol, Minato Ku, 4-5-7 Konan, Tokyo 1088477, Japan.
   Hokkaido Univ, Fac Fisheries Sci, 3-1-1 Minato Cho, Hakodate, Hokkaido 0418611, Japan.
   Natl Inst Polar Res, 10-3 Midori Cho, Tachikawa, Tokyo 1908518, Japan.
C2 NIES, JAPAN
   UNIV HOKKAIDO, JAPAN
   UNIV MARINE SCI & TECHNOL TOKYO, JAPAN
   UNIV HOKKAIDO, JAPAN
   NIPR, JAPNATL INST JAPAN
IF 2.955
TC 9
UR https://archimer.ifremer.fr/doc/00676/78836/81084.pdf
   https://archimer.ifremer.fr/doc/00676/78836/81085.pdf
   https://archimer.ifremer.fr/doc/00676/78836/81086.pdf
   https://archimer.ifremer.fr/doc/00676/78836/81087.pdf
   https://archimer.ifremer.fr/doc/00676/78836/81088.pdf
   https://archimer.ifremer.fr/doc/00676/78836/81089.pdf
   https://archimer.ifremer.fr/doc/00676/78836/81090.pdf
   https://archimer.ifremer.fr/doc/00676/78836/81091.docx
LA English
DT Article
CR OISO - OCÉAN INDIEN SERVICE D'OBSERVATION
DE ;Phytoplankton community composition;Diatoms;Southern Ocean;Net primary productivity;Carbon dioxide
AB The Southern Ocean is a vast net sink for atmospheric carbon dioxide (CO2), with marine phytoplankton playing a crucial role in CO2 fixation. We assessed how changes in the dominant phytoplankton community and net primary productivity (NPP) affected variations in the partial pressure of CO2 in surface water (pCO(2)(sw)) in the Indian sector of the Southern Ocean during austral summer. pCO2sw was negatively correlated with total phytoplankton and diatom abundances, as estimated from pigment signatures, in the zone south of the Antarctic Circumpolar Current; however, pCO(2)(sw) was not correlated with haptophyte abundance. Additionally, a stronger correlation was found between pCO(2)(sw) and total phytoplankton NPP than between chlorophyll a concentration and pCO(2)(sw). We reconstructed pCO(2)(sw) at inter-annual scale using satellite data and assessed the inter-annual variability of air-sea CO2 flux. Over the period from 1997 to 2007, the integrated CO2 fluxes over the study region showed very large variations from a small source to a strong sink. Variations in the integrated CO2 fluxes were also correlated with changes in satellite-derived phytoplankton community in the Indian sector of the Southern Ocean and changes in the dominant phytoplankton community may control CO2 dynamics in the marginal ice zone. 
PY 2020
PD JUL
SO Deep-sea Research Part I-oceanographic Research Papers
SN 0967-0637
PU Pergamon-elsevier Science Ltd
VL 160
UT 000535357000010
DI 10.1016/j.dsr.2020.103263
ID 78836
ER

EF