FN Archimer Export Format
PT J
TI Colour or no colour in the juvenile shell of the black lip pearl oyster, Pinctada margaritifera?
BT 
AF TRINKLER, Nolwenn
   LE MOULLAC, Gilles
   CUIF, Jean-Pierre
   COCHENNEC-LAUREAU, Nathalie
   DAUPHIN, Yannicke
AS 1:1;2:2;3:1;4:3;5:1;
FF 1:;2:PDG-RBE-RMPF-EP;3:;4:PDG-ODE-LER-LERMPL;5:;
C1 Univ Paris 11, UMR IDES 8148, F-91405 Orsay, France.
   IFREMER, Ctr Pacifique, Taravao 98719, Fr Polynesia.
   IFREMER, Ctr Nantes, Nantes, France.
C2 UNIV PARIS 11, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
SI TAHITI
   LA TRINITE
SE PDG-RBE-RMPF-EP
   PDG-ODE-LER-LERMPL
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 1.07
TC 2
UR https://archimer.ifremer.fr/doc/00078/18883/16449.pdf
LA English
DT Article
DE ;Juvenile shell;Colour-scoring;Mollusc;Pearl oyster;Pinctada margaritifera
AB Pinctada margaritifera mollusc is cultivated in French Polynesia for the production of black pearls. For this study, the colour of juvenile samples (48 days old) was investigated in the visible range spectra (430-700 nm) using spectrophotometry. A first measurement was done with the soft parts still inside the shell (entire animal). Then, the soft parts were removed in order to do a second measurement on the growing edge of the shell. Comparison of the two measurements shows that the estimation of the living animal colour with unaided eye is strongly influenced by the colour of the soft parts. The use of the International Commission on Illumination (ISI) chromaticity diagram shows that at this growth stage, the shells are "white"; i.e. present no absorptions to the visible part. Multivariate statistical analyses based on the intensities of 6 wavelengths show that the shell colour is less variable than the colours of the entire animals. Wavelength intensities of the shells are similar, so no colour trend is visible. On the other hand, the colours of the entire animals are darker, and more variable. At this growth stage, the shell colour is not predictable for a potential selection of receiver or donor.
PY 2012
PD JAN
SO Aquatic Living Resources
SN 0990-7440
PU Edp Sciences S A
VL 25
IS 1
UT 000302953200008
BP 83
EP 91
DI 10.1051/alr/2012001
ID 18883
ER

EF