FN Archimer Export Format PT J TI Cryopreservation of Pacific oyster ( Crassostrea gigas ) larvae: Revisiting the practical limitations and scaling up the procedure for application to hatchery BT AF LABBE, Catherine HAFFRAY, Pierrick MINGANT, Christian QUITTET, Benjamin DISS, Blandine TERVIT, H. Robin ADAMS, Serean L. RIMOND, Flore SUQUET, Marc AS 1:1;2:2;3:3;4:2;5:4;6:5;7:6;8:3;9:3; FF 1:;2:;3:PDG-RBE-PFOM-LPI;4:;5:;6:;7:;8:;9:PDG-RBE-PFOM-LPI; C1 INRA, LPGP, UR1037, Rennes, France. LPGP, SYSAAF, Rennes, France. IFREMER, PFOM Dept, Stn Expt Argenton, UMR 6539, Argenton, France. Satmar, Barfleur, France. AgResearch, Private Bag 3123, Hamilton, New Zealand. Cawthron Inst, Hamilton, New Zealand. C2 INRA, FRANCE SYSAAF, FRANCE IFREMER, FRANCE SATMAR, FRANCE AGRESEARCH, NEW ZEALAND CAWTHRON INST, NEW ZEALAND SI BREST ARGENTON SE PDG-RBE-PFOM-LPI UM LEMAR IN WOS Ifremer jusqu'en 2018 copubli-france copubli-p187 copubli-int-hors-europe IF 3.022 TC 17 UR https://archimer.ifremer.fr/doc/00423/53460/54354.pdf LA English DT Article DE ;Oyster;Cryobanking;D stage;Ethylene glycol;High throughput;Hatchery AB Pacific oyster Crassostrea gigas is one major species for aquaculture, and the development of breeding programs and the need for preservation of wild stock genetic resources prompted the need for larvae cryopreservation. The objective of the present study was to choose the most reliable protocol from several existing publications, to test its biological and practical limitations, and to adapt it to hatchery conditions. The selected protocol was characterized by a very slow freezing rate without seeding, and by the use of ethylene glycol and sucrose as cryoprotectant. The best survivals after thawing and rearing up to 48 h post fertilization (hpf) were obtained with larvae that were frozen at late trochophore (20 hpf) and early-D (24 hpf) stages. Increasing the larvae concentration in the straws and using high throughput straw filling and freezing devices did not alter the cryopreservation outcome. The whole procedure was applied to cryopreservation in a commercial hatchery (Satmar, France), and the thawed larvae yielded 9.4 ± 4.5% survivals at 12 days post fertilization. The overall success was dampened by some variability in the larvae survival that is likely due to the physiological status of the larvae. In all, the proposed procedure is robust and reliable and can be used for cryobanking of oyster genetic resources. PY 2018 PD MAR SO Aquaculture SN 0044-8486 PU Elsevier Science Bv VL 488 UT 000428685800026 BP 227 EP 234 DI 10.1016/j.aquaculture.2018.01.023 ID 53460 ER EF