| The production of Juveniles, key of aquaculture, needs for the alimentation of the larvae, to dispose plankton preys, which cannot be supplied by rearing. The collections realised with adapted implements, have led to very positive results In both types of media, situated in the surroundings of Séte : mar shes and oxydation ponds (used for waste water purifying). The most abundant plankton in these two kinds of media are uni-cellular algae, Rotlfera, Copepoda, Daphne (oxydation pont) and Aetemia (marshes). These populations constitute a complete alimentation sequence without an equivalent for the necessities of larvae and juveniles. Our qualitative collections (from 0,2 to 20 kg/h) plankton, dependent on the species) have allowed to rear, without any... |
