FN Archimer Export Format
PT J
TI Mn labelling of living oysters: Artificial and natural cathodoluminescence analyses as a tool for age and growth rate determination of C. gigas (Thunberg, 1793) shells
BT 
AF LARTAUD, Franck
   DE RAFELIS, Marc
   ROPERT, Michel
   EMMANUEL, Laurent
   GEAIRON, Philippe
   RENARD, Maurice
AS 1:1,2;2:1;3:3;4:1;5:4;6:1;
FF 1:;2:;3:PDG-DOP-LER-LERN;4:;5:PDG-DOP-LER-LERPC;6:;
C1 Univ Paris 06, Lab Biomineralisat & Environm Sedimentaires, ISTeP, UMR 7193, F-75252 Paris 05, France.
   CNRS, IUEM UBO, Lab Sci Environm Marin LEMAR, UMR 6539, F-29280 Plouzane, France.
   IFREMER, Lab Environm Ressource Normandie, F-14520 Port En Bessin, France.
   IFREMER, Lab Environm Ressource Pertuis Charentais, F-17390 La Tremblade, France.
C2 UNIV PARIS 06, FRANCE
   CNRS, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
SI PORT-EN-BESSIN
   LA TREMBLADE
SE PDG-DOP-LER-LERN
   PDG-DOP-LER-LERPC
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.044
TC 39
UR https://archimer.ifremer.fr/doc/00002/11300/7912.pdf
LA English
DT Article
DE ;Oyster shells;Crassostrea gigas;Manganese markings;Cathodoluminescence;Seasonal growth patterns
AB We developed a growth model for Crassostrea gigas oyster shells based on the use of in situ temporal manganese markings to calibrate natural cathodoluminescence (CL) changes in the shell hinge sections. A 30 min to 4-h exposure period with Mn2+ (90-120 mg l(-1)) was sufficient to create a detectable mark in the shells. This makes the Mn2+ markings the fastest mollusc shells marking technique to date. The natural CL from juvenile and adult shells cultured in four standard shellfish-farming locations along the English Channel and French Atlantic coasts, exhibited a seasonal pattern (maximum CL intensity occurring during summer periods, minimum CL intensity occurring during winter). Hydrobiological data recorded at Baie des Veys site allows us to attribute the seawater temperature as the main parameter controlling CL of shells. Chlorophyll a and seawater manganese concentration were not decisive in the luminescence intensity of the shells. A relationship between oyster hinge growth and the length of shells makes the umbo investigations a promising tool for oyster-farming and/or wild stock assessments. Shell growth varied at spatial and temporal scales (higher growth rates were observed during summer-autumn and lower during the winter period), depending on seawater temperature changes. Sub-monthly Mn2+ markings support the fact that shell deposition can occur under temperatures below 6 degrees C, which has to be taken into account for both shellfish production and environmental monitoring derived from chemical compositions of the shells. Finally, our results point out the efficiency of age and shell growth rate determination by CL analysis in further shellfish ecosystem researches.
PY 2010
PD FEB
SO Aquaculture
SN 0044-8486
PU Elsevier Science Bv
VL 300
IS 1-4
UT 000275579400030
BP 206
EP 217
DI 10.1016/j.aquaculture.2009.12.018
ID 11300
ER

EF