FN Archimer Export Format PT J TI Larval development and fatty acid composition of Ostrea edulis (L.) fed four different single diets from conditioning to pre-settlement BT AF GONZALEZ-ARAYA, Ricardo ROBERT, Rene AS 1:1,2;2:2,3; FF 1:PDG-RBE-PFOM-PI;2:PDG-ODE-LITTORAL; C1 Comite Reg Conchyliculture Bretagne Nord, Morlaix, France. Ifremer, Lab Physiol Invertebres Marins, LEMAR, UMR 6539, Plouzane, France. Ifremer, ZI Pointe Diable, Ctr Bretagne, Unite Littoral, Plouzane, France. C2 CRCBN, FRANCE IFREMER, FRANCE IFREMER, FRANCE SI ARGENTON BREST SE PDG-RBE-PFOM-PI PDG-ODE-LITTORAL UM LEMAR IN WOS Ifremer jusqu'en 2018 copubli-france IF 1.502 TC 12 UR https://archimer.ifremer.fr/doc/00438/54986/56483.pdf LA English DT Article DE ;broodstock conditioning;diet;larval development;Ostrea edulis AB Survival, growth and fatty acid composition of Ostrea edulis larvae (L.) fed four different single species, microalgal diets, Tisochrysis lutea (T), Chaetoceros neogracile (Cg), Skeletonema marinoi (Sm) or Tetraselmis suecica (Ts) from broodstock to pre-settlement, were studied. Lower larval growth (5.5m to 6.5m/d) was recorded in progeny continuously fed single S.marinoi or T.suecica, whereas good growth was achieved with single T.lutea (7.8m/d). Larvae, originated from broodstock receiving Sm or Ts, exhibited growth compensation when fed a bispecific balanced diet (TCg). This did not occur when broodstock and larvae were fed Cg or T, for which single or mixed diets led to similar larval growth. Furthermore, survival was high (>90%) regardless of microalgal diet, except for larvae fed from broodstock to pre-settlement T (53%) or Ts (2%). There were significant differences in 20:5 (n-3) and 22: 6 (n-3) contents in polar and neutral fractions of O.edulis expelled larvae dependent on broodstock diet, as well as throughout larval development, but no clear trend was apparent when comparing fatty acid (FA) relative composition of both fractions of O.edulis larvae fed different diets at release or prior to settlement. In contrast, such correlation occurred when FA was expressed in absolute content but exclusively for larvae-fed single diets and was particularly noticeable between 22: 6 (n-3) and growth and survival. In the present work, broodstock nutritional deficiencies have been revealed in O.edulis progeny, compensated thereafter by feeding the larvae a mixed diet, and in this balanced condition, no obvious relation with larval development indicators was found with main fatty acid contents. PY 2018 PD MAY SO Aquaculture Research SN 1355-557X PU Wiley VL 49 IS 5 UT 000429410800004 BP 1768 EP 1781 DI 10.1111/are.13631 ID 54986 ER EF