Individual monitoring of gonad development in the European flat oyster Ostrea edulis by in vivo magnetic resonance imaging

Type Article
Date 2010-09
Language English
Author(s) Davenel Armel1, 3, Gonzalez Ricardo2, Suquet Marc2, Quellec Stephane1, 3, Robert ReneORCID2
Affiliation(s) 1 : Cemagref, UR TERE, F-35044 Rennes, France.
2 : IFREMER, UMR100, LPI, Stn Expt Argenton, F-29840 Argenton En Landunvez, France.
3 : Univ Europeenne Bretagne, Lorient, France.
Source Aquaculture (0044-8486) (Elsevier Science Bv), 2010-09 , Vol. 307 , N. 1-2 , P. 165-169
DOI 10.1016/j.aquaculture.2010.07.013
WOS© Times Cited 14
Keyword(s) Oyster, Ostrea edulis, Gonad development, Magnetic resonance imaging
Abstract Previous studies have shown that magnetic resonance imaging is a very appropriate non-invasive technique for quantifying the growth of somatic and gonadic tissues and sex determination in the Pacific oyster, Crassostrea gigas. Despite a thinner gonad, harder to distinguish than that of the Pacific oyster, we showed in this study that it was possible to distinguish and quantify the development of the gonad of the European flat oyster, Ostrea edulis, using a 3D MRI sequence with a suitable finer resolution. Compared to T2-weighted images, theoretically the most appropriate for good anatomical description, T1-weighted images were more suited to gonad observation. The gonad development was quantified by the number of voxels with higher grey level. Larvae were then depicted in the intervalvar cavity of spawning females. MRI imaging is a non-invasive method that is well suited to the description of gametogenesis in the European flat oyster. (C) 2010 Published by Elsevier B.V.
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