Thirty-one species of marine invertebrates collected from the Indian Coast,
belonging to six phyla (Porifera, Coelenterata, Annelida, Mollusca, Echino
dermata, and Eurochordata) were tested for antifouling activity against the
green mussel Perna viridis L, The repulsive action of the foot and product
ion of byssus threads by green mussels were used for assaying the above act
ivity. Subergorgia suberosa, Sinularia numerosa, Sinularia compressa, Cladi
ella pachyclados (phylum Coelenterata), Haliclona sp, (phylum Porifera), an
d Planaxis sulcatus (phylum Mollusca) have shown to be potential sources of
antifoulants.