Alginate-entrapped Haslea ostrearia as inoculum for the greening of oysters

Entrapment in calcium alginate beads of the marine diatom, Haslea ostrearia , was successfully used for stock-culture managment and afterwards the sowi ng of ponds for the greening of oysters. After storage during almost 2 mont hs, viable and cultivable cells were recovered from beads by dissolving alg inate matrix but an original way lies in directly introducing beads in pond s and promoting natural cell leakage.