FN Archimer Export Format PT J TI Gonad volume assessment in the oyster Crassostrea gigas: Comparison between a histological method and a Magnetic Resonance Imaging (MRI) method BT AF FLAHAUW, Emilie QUELLEC, Stephane DAVENEL, Armel DEGREMONT, Lionel LAPEGUE, Sylvie HATT, Philippe-Jacques AS 1:1;2:2,3;3:2,3;4:1;5:1;6:1; FF 1:PDG-RBE-AGSAE-LGP;2:;3:;4:PDG-RBE-AGSAE-LGP;5:PDG-RBE-AGSAE-LGP;6:PDG-RBE-AGSAE-LGP; C1 IFREMER, AGSAE LGP, F-17390 Mus Du Loup, La Tremblade, France. Irstea, IRM Food, F-35044 Rennes, France. Univ Europeenne Bretagne, Bretagne, France. C2 IFREMER, FRANCE IRSTEA, FRANCE UEB, FRANCE SI LA TREMBLADE SE PDG-RBE-AGSAE-LGP IN WOS Ifremer jusqu'en 2018 copubli-france copubli-p187 copubli-univ-france IF 2.01 TC 3 UR https://archimer.ifremer.fr/doc/00102/21309/19410.pdf LA English DT Article DE ;Oyster;Crassostrea gigas;Reproduction;Histology;Magnetic resonance imaging;MRI AB Previous studies comparing Crassostrea gigas selected lines with different susceptibility to summer mortality concluded that the higher the reproductive effort the lower the survival. But theywere lacking individual followup of this reproductive effort which would be of great interest to help us to understand the physiology of the oysters facing summermortalities. Themost frequently usedmethod for assessing the volume of the gonad is to measure the area it occupies on histological sections. Gonad measurement by magnetic resonance imaging, in contrast, is non-destructive and therefore makes it possible to assess individual evolution as well as to compare individuals. The present study compared the values of gonad volume by thismethodwith the values of gonad surface obtained by the histological method. The two methods were used successively to assess the volume of the gonads of the same individual oysters at different maturation stages. There is a very highly significant linear relation between the results of these two methods. The estimated uncertainty about the volume value is 29%. Causes of this uncertainty are considered and discussed. PY 2012 PD DEC SO Aquaculture SN 0044-8486 PU Elsevier Science Bv VL 370-371 UT 000311215700012 BP 84 EP 89 DI 10.1016/j.aquaculture.2012.10.008 ID 21309 ER EF