REFERENCES
- Bailey, N.T.J. (1976). Statistical methods in Biology. Hodder and Stoughton London, Sydney, Toronto, pp 43–52.
- Barnes, R.D. (1986). Invertebrate Zoology 5th ed. Saunders college pub. New York, Chicago, Sydney, Tokyo.
- Gina G. (1989). Aerobic and Anaerobic metabolism of a tropical fresh water fish Oreochromis niloticus (Pisces cichlidae) Ph-D. Thesis.
- Hashimoto, Y and Yasumoto, T. (1960). Confirmation of saponin as a toxic principle of starfish. Bull. Jap Soc Scient Fish 26, 1132–1138.
- Lehninger, A.L (1977). Biochemistry. Worth publishers Inc.
- McGilvery R.W.(1979). Biochemistry. A functional approach. Sanders comp. Philadelphia, London, Toronto.
- Omalo, S. (1977). A study of total protein, fat and ash contents of sea urchins. Diadema setosum, Stomoneustes variolaris and Echinometra mathaei. E. Afr. agric. For. J., 65–70.
- Pilkey, O.H. and Hower, J. (1960). The effect of environment on the concentrations of skeletal magnesium and strontium in Dendraster J. Geol. 68, 203–216.
- Robertson, J.D. (1949). Ionic regulation in 60 me marine invertebrates, J. Exe. Bill. 26, 182–200.
- Sindermann, CJ. (1970). Principal diseases of marine fish and shell fish. Academic press, New York and London.