Régime alimentaire et pourcentage de survie chez la larve de turbot (scophtalmus maximus (L.))

The authors who obtained the first metamorphosis during rearing of turbot larvae in 1972, in Great -Britain (Jones, Alderson and Howell, to be published), and in France (Girin, 1972) could not determine precisely the factors of their success. The great diversity, in shape and size, of the ponds used makes us think that the fishes' diet is the key to the issue. An experiment focusing on this issue had confirmed the importance of the daily food ration during the first 20 days following hatching (Girin, 1973). But a food catching problem seemed to add on to the food ration issue during the metamorphosis, leading to a halt in the rearing.