FN Archimer Export Format
PT J
TI New insights into oyster high-resolution hinge growth patterns
BT 
AF Huyghe, Dimitri
   de Rafelis, Marc
   Ropert, Michel
   Mouchi, Vincent
   Emmanuel, Laurent
   Renard, Maurice
   Lartaud, Franck
AS 1:1,2;2:2;3:3;4:1,4;5:4;6:4;7:1;
FF 1:;2:;3:PDG-ODE-LITTORAL-LERN;4:;5:;6:;7:;
C1 Sorbonne Université, CNRS, Laboratoire d’Ecogéochimie des Environnements Benthiques, LECOB, Observatroire Océanologique de Banyuls, 66650 Banyuls‑sur‑Mer, France
   Géosciences Environnement Toulouse, CNRS, IRD, Université Paul Sabatier Toulouse 3, 14 Avenue Edouard Belin, 31400 Toulouse, France
   Ifremer, Laboratoire Environnement Ressource de Normandie, Avenue du General de Gaulle, BP 32, 14520 Port.en.Bessin, France
   Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP, 75005 Paris, France
C2 UNIV PARIS 06, FRANCE
   UNIV TOULOUSE, FRANCE
   IFREMER, FRANCE
   UNIV PARIS 06, FRANCE
SI PORT-EN-BESSIN
SE PDG-ODE-LITTORAL-LERN
IN WOS Ifremer UPR
   copubli-france
   copubli-univ-france
IF 2.05
TC 18
UR https://archimer.ifremer.fr/doc/00484/59601/85211.pdf
LA English
DT Article
AB While oyster shells are one of the most common mollusks used for the analysis of (paleo)environmental and (paleo)climatic records based on geochemical proxies, high-resolution growth rate changes still need to be determined. Promising previous works are restricted to small portions of shell sections due to difficulties in continuous growth increment revelation. Based on a mark and recapture experiment of Magallana gigas specimens reared in an intertidal area of Normandy (France) for 22 months, and a sclerochronological approach using cathodoluminescence microscopy, this study provides the longest high-resolution record of growth increments in oyster shells to date. Different growth patterns were identified likely related to the oyster age. After age 1 year, the formation of growth increments follows an expected tide-related model, leading to the mineralization of ~ 2 calcitic increments per day, together with growth rate changes at lunar and semi-lunar periodicities, and a seasonal trend with occasional growth breaks during winter when temperatures fall below ~ 6 °C. However, for oysters younger than 1 year, i.e., before reaching their sexual maturity, the growth increment analysis reveals unconventional patterns. In this case, oysters’ growth is associated with either a large number (~ 5) or less than one increment per day depending on the period. This pattern is also associated with frequent growth cessations, although the growth rate of the shell is high at this period. Our results illustrate that the high-resolution sclerochronological approach is required for accurate paleoenvironmental reconstructions based on oyster shells. 
PY 2019
PD APR
SO Marine Biology
SN 0025-3162
PU Springer Nature
VL 166
IS 4
UT 000460657700002
DI 10.1007/s00227-019-3496-2
ID 59601
ER

EF