FN Archimer Export Format
PT J
TI Regional and global impact of CO2 uptake in the Benguela Upwelling System through preformed nutrients
BT 
AF Siddiqui, Claire
   Rixen, Tim
   Lahajnar, Niko
   Van der Plas, Anja K.
   Louw, Deon C.
   Lamont, Tarron
   Pillay, Keshnee
AS 1:1;2:1,2;3:2;4:3;5:4;6:5,6,7;7:5;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 Leibniz Centre for Tropical Marine Research - ZMT, Fahrenheitstrasse 6, 28359, Bremen, Germany
   Institute of Geology, Universität Hamburg, Bundesstrasse 55, 20146, Hamburg, Germany
   National Marine Information and Research Centre, PO Box 912, Swakopmund, 13001, Namibia
   Debmarine Namibia, 10 Dr Frans Indongo Street, Windhoek, 10005, Namibia
   Oceans & Coasts Research Branch, Department of Environment, Forestry and Fisheries, PO Box 52126, Victoria & Alfred Waterfront, Cape Town, 8000, South Africa
   Marine Research Institute & Department of Oceanography, University of Cape Town, Rondebosch, South Africa
   Bayworld Centre for Research & Education, 5 Riesling Road, Constantia, Cape Town, 7806, South Africa
C2 LEIBNIZ CTR TROP MARINE RES ZMT, GERMANY
   UNIV HAMBURG, GERMANY
   NATMIRC, NAMIBIA
   DEBMARINE NAMIBIA, NAMIBIA
   OCEANS & COASTS RESEARCH BRANCH, SOUTH AFRICA
   UNIV CAPE TOWN, SOUTH AFRICA
   BCRE, SOUTH AFRICA
IN DOAJ
IF 16.6
TC 1
UR https://archimer.ifremer.fr/doc/00842/95438/103233.pdf
   https://archimer.ifremer.fr/doc/00842/95438/103234.pdf
   https://archimer.ifremer.fr/doc/00842/95438/103235.pdf
LA English
DT Article
CR OISO - OCÉAN INDIEN SERVICE D'OBSERVATION
AB Eastern Boundary Upwelling Systems (EBUS) are highly productive ecosystems. However, being poorly sampled and represented in global models, their role as atmospheric CO2 sources and sinks remains elusive. In this work, we present a compilation of shipboard measurements over the past two decades from the Benguela Upwelling System (BUS) in the southeast Atlantic Ocean. Here, the warming effect of upwelled waters increases CO2 partial pressure (pCO2) and outgassing in the entire system, but is exceeded in the south through biologically-mediated CO2 uptake through biologically unused, so-called preformed nutrients supplied from the Southern Ocean. Vice versa, inefficient nutrient utilization leads to preformed nutrient formation, increasing pCO2 and counteracting human-induced CO2 invasion in the Southern Ocean. However, preformed nutrient utilization in the BUS compensates with ~22–75 Tg C year−1 for 20–68% of estimated natural CO2 outgassing in the Southern Ocean’s Atlantic sector (~ 110 Tg C year−1), implying the need to better resolve global change impacts on the BUS to understand the ocean’s role as future sink for anthropogenic CO2. 
PY 2023
PD MAY
SO Nature Communications
SN 2041-1723
PU Springer Science and Business Media LLC
VL 14
IS 1
UT 001001562200012
DI 10.1038/s41467-023-38208-y
ID 95438
ER

EF