FN Archimer Export Format
PT J
TI Exploring the use of compound-specific carbon isotopes as a palaeoproductivity proxy off the coast of Adélie Land, East Antarctica
BT 
AF Ashley, Kate E.
   Crosta, Xavier
   Etourneau, Johan
   Campagne, Philippine
   Gilchrist, Harry
   Ibraheem, Uthmaan
   Greene, Sarah E.
   Schmidt, Sabine
   Eley, Yvette
   Massé, Guillaume
   Bendle, James
AS 1:1;2:2;3:2,3;4:2,4;5:1;6:1;7:1;8:2;9:1;10:4,5;11:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;
C1 School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
   EPOC, UMR-CNRS 5805, Université de Bordeaux, 33615 Pessac, France
   EPHE/PSL Research University, 75014 Paris, France
   LOCEAN, UMR CNRS/UPCM/IRD/MNHN 7159, Université Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris, France
   TAKUVIK, UMI 3376 UL/CNRS, Université Laval, 1045 avenue de la Médecine, Quebec City, Quebec, G1V 0A6, Canada
C2 UNIV BIRMINGHAM, UK
   UNIV BORDEAUX, FRANCE
   EPHE, FRANCE
   UNIV PARIS 06, FRANCE
   UNIV LAVAL, CANADA
IN DOAJ
IF 5.092
TC 5
UR https://archimer.ifremer.fr/doc/00729/84134/89065.pdf
   https://archimer.ifremer.fr/doc/00729/84134/89066.pdf
   https://archimer.ifremer.fr/doc/00729/84134/89067.pdf
   https://archimer.ifremer.fr/doc/00729/84134/89068.pdf
LA English
DT Article
CR ALBION 2011
   MD 130 / CADO
BO L'Astrolabe
   Marion Dufresne
AB The Antarctic coastal zone is an area of high primary productivity, particularly within coastal polynyas, where large phytoplankton blooms and drawdown of CO2 occur. Reconstruction of historical primary productivity changes and the associated driving factors could provide baseline insights on the role of these areas as sinks for atmospheric CO2, especially in the context of projected changes in coastal Antarctic sea ice. Here we investigate the potential for using carbon isotopes (δ13C) of fatty acids in marine sediments as a proxy for primary productivity. We use a highly resolved sediment core from off the coast of Adélie Land spanning the last ∼ 400 years and monitor changes in the concentrations and δ13C of fatty acids along with other proxy data from the same core. We discuss the different possible drivers of their variability and argue that C24 fatty acid δ13C predominantly reflects phytoplankton productivity in open-water environments, while C18 fatty acid δ13C reflects productivity in the marginal ice zone. These new proxies have implications for better understanding carbon cycle dynamics in the Antarctica coastal zone in future palaeoclimate studies. 
PY 2021
PD OCT
SO Biogeosciences
SN 1726-4170
PU Copernicus GmbH
VL 18
IS 19
UT 000709151400001
BP 5555
EP 5571
DI 10.5194/bg-18-5555-2021
ID 84134
ER

EF