FN Archimer Export Format
PT J
TI Experimental shift of diet and DIC stable carbon isotopes: Influence on shell delta C-13 values in the Manila clam Ruditapes philippinarum
BT 
AF POULAIN, C.
   LORRAIN, Anne
   MAS, R.
   GILLIKIN, D. P.
   DEHAIRS, F.
   ROBERT, Rene
   PAULET, Yves-Marie
AS 1:1;2:1;3:2,3;4:4;5:2,3;6:5;7:1;
FF 1:;2:;3:;4:;5:;6:PDG-DOP-DCB-PFOM-PI;7:;
C1 Inst Univ Europeen Mer, LEMAR, UMR CNRS UBO IRD 6539, F-29280 Plouzane, France.
   Vrije Univ Brussels, Earth Syst Sci Res Grp, B-1050 Brussels, Belgium.
   Vrije Univ Brussels, Dept Analyt & Environm Chem, B-1050 Brussels, Belgium.
   Vassar Coll, Dept Geog & Earth Sci, Poughkeepsie, NY 12604 USA.
   IFREMER, Stn Expt Argenton, UMR Lab Physiol Invertebres, F-29840 Argenton, France.
C2 UBO, FRANCE
   UNIV VRIJE BRUSSEL, BELGIUM
   UNIV VRIJE BRUSSEL, BELGIUM
   COLL VASSAR, USA
   IFREMER, FRANCE
SI ARGENTON
SE PDG-DOP-DCB-PFOM-PI
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
IF 3.722
TC 51
UR https://archimer.ifremer.fr/doc/00003/11443/8001.pdf
LA English
DT Article
DE ;delta C-13(shell);DIC;Salinity;Metabolic carbon;Ruditapes philippinarum;Estuarine water;Proxy
AB The influences of diet and seawater dissolved inorganic carbon (DIC) on the carbon isotope composition of shell aragonite (Cinched in the Manila clam Ruditapes philippinarum reared under laboratory conditions were investigated. Clams were exposed to two successive negative carbon isotope shifts: a first shift in diet (delta C-13(phytoplankton)) and a second shift, 35 days later, in DIC (delta C-13(DIC)). Both successive shifts induced a decrease in delta C-13(shell). These results are the first to experimentally confirm an incorporation of respired carbon derived from food and carbon from DIC into shell carbonate of adult bivalves. Skeletal delta C-13 responded to changes in the delta C-13 of both diet and DIC in less than 7 days. Consequently, proxies based on delta C-13(shell) may be used with high temporal resolution. Using delta C-13(phycoplankton) as a proxy for the carbon isotope composition of respired carbon (delta C-13(R)) resulted in a rather constant percentage of metabolic carbon (C-M) into the shell carbonate over time (close to 12%). However, an accurate estimation of delta C-13(R) is required in order to precisely estimate the percentage of metabolic carbon incorporated into the shell. Despite the significant incorporation of metabolic carbon into shell carbonate, our experimental results revealed that delta C-13(shell) was highly correlated with delta C-13(DIC) (r(2)=0.77, p<0.0001). Thus it seems that delta C-13(shell) is a promising proxy of large scale variations in delta C-13(DIC) and therefore of salinity in estuarine water. (C) 2010 Elsevier B.V. All rights reserved.
PY 2010
PD APR
SO Chemical Geology
SN 0009-2541
PU Elsevier Science Bv
VL 272
IS 1-4
UT 000277220700009
BP 75
EP 82
DI 10.1016/j.chemgeo.2010.02.006
ID 11443
ER

EF