FN Archimer Export Format
PT J
TI Rare earth elements and yttrium in suspension-feeding bivalves (dog cockle, Glycymeris glycymeris L.): accumulation, vital effects and pollution
BT 
AF Barrat, Jean-Alix
   Chauvaud, Laurent
   Olivier, Fréderic
   Poitevin, Pierre
   Bayon, Germain
   Ben Salem, Douraied
AS 1:1,2;2:1,7;3:3;4:1,4;5:5;6:6;
FF 1:;2:;3:;4:;5:PDG-REM-GEOOCEAN-ASTRE;6:;
C1 Univ Brest, CNRS, LEMAR, Institut Universitaire Européen de la Mer (IUEM), Place Nicolas Copernic, 29280 Plouzané, France
   Institut Universitaire de France, France
   Biologie des Organismes et Écosystèmes Aquatiques (BOREA) UMR 8067 MNHN, CNRS SU, IRD 207, UCN, UA, 61 Rue Buffon CP 53, 75005 Paris, France
   Fisheries and Oceans Canada, Maurice Lamontagne Institute, Mont-Joli, QC, Canada
   IFREMER, Marine Geosciences Unit, F-29280 Plouzané, France
   LaTIM (INSERM UMR 1101), Université de Bretagne Occidentale, 22, Avenue C. Desmoulins, 29238, Brest Cedex 3, France
   Univ Brest, CNRS, LEMAR, Institut Universitaire Européen de la Mer (IUEM), Place Nicolas Copernic, 29280 Plouzané, France
C2 UBO, FRANCE
   INST UNIV FRANCE, FRANCE
   MNHN, FRANCE
   MPO INST MAURICE LAMONTAGNE, CANADA
   IFREMER, FRANCE
   UBO, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-REM-GEOOCEAN-ASTRE
UM LEMAR
   GEO-OCEAN
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 5
TC 7
UR https://archimer.ifremer.fr/doc/00800/91215/96944.pdf
LA English
DT Article
DE ;Rare earth elements;Bivalve;Accumulation;Gadolinium;Ce anomaly;Ce/Ce*;Pollution
AB Rare earth element (REE) and Y (REY) concentrations were determined in soft tissues and shells prepared from 9 to 93 years old dog cockles sampled alive from a marine site in NW Brittany, France. The concentrations shown by the different soft tissues and shells are extremely variable ranging from 9.10-5 to 10-1 x PAAS. The mantle is the organ with the highest concentrations, while the feet, the adductor muscles and the digestive glands display the lowest ones. Relative to the masses of the different organs, we show that the shell concentrates more than 85% of the REY contained in an animal, and the mantle, which represents less than 0.5% of the total animal mass (on a dry basis), contains 10% of the total REY. Organs accumulate REY throughout the life of the animal. REY concentrations in soft tissues increase by more than one order of magnitude in 90 years. The shells mirror the REY abundances of the mantle but are slightly less light-REE enriched than the latter. Furthermore, shells as well as feet and adductor muscles show a striking correlation between animal age and Ce/Ce* ratios. Ce/Ce* ratios evolve from 0.8 for animals aged ∼10 years to 1 for the oldest, with most of the variation during the first 25 years, indicating that Ce also accompanies biochemical reactions probably related to the growth or maturity of the animals. Soft tissues also show extremely variable positive Gd anomalies (Gd/Gd*= 1.04 - 1.94) which indicate environmental pollution by Gd based contrast agents (GBCA) used in medical imaging. Anomalies tend to be more important for organs poor in REY (like muscles and digestive glands). Low excesses of Gd, on the order of 1-3 ng/g (on a dry basis), account for these anomalies. There is no correlation between the age of the animals and the amount of anthropogenic Gd or Gd/Gd* ratios suggesting that GBCAs do not accumulate in the bivalve body on a long-term basis. 
PY 2022
PD DEC
SO Geochimica Et Cosmochimica Acta
SN 0016-7037
PU Elsevier BV
VL 339
UT 000887436800002
BP 12
EP 21
DI 10.1016/j.gca.2022.10.033
ID 91215
ER

EF