A. P Ekanem1*, F. V. Udoh2 and E. E. Oku3
1Institute of Oceanography, University of Calabar, P. M. B 1115, Calabar, Nigeria.
2Department of Pharmacology, University of Calabar, P. M. B. 1115, Calabar, Nigeria.
3Department of Zoology and Environmental Biology, University of Calabar, Nigeria.
