1. Baby, K. V. and Menon, N. R.: 1986,Indian. J. Sci. 15, 127?128.
2. Balaji, M.: 1988, ?Investigations on the Biofouling at Two Ports in Andhra Pradesh, India and Some Aspects of Toxicity of Copper to the Fouling BivalveMytilopsis sallei (Recluz)?, Ph. D. Thesis, Andhra University, Waltair (India).
3. Brown, B. and Newell, R. C.: 1972,Mor. esiol. 16, 108?118.
4. Davenport, J.: 1977,J. Mar. Biol. Asso. U.K. 57, 63?74.
5. FAO: 1977, ?Manual of Merhods in Aquatic Environment Research, Part 4 ? Bases for Selecting Biological tests to Evaluate Marine Pollution, FAO.Fish. Tech. Pap. (164).