Gillnet Selectivity and Abundance in the Parailia pellucida (Boulenger, 1901) (Schilbeidae) Fishery of the Freshwater Reaches of the Lower Nun River, Niger Delta, Nigeria

M.E. Allison, I.F. Vincent-Akpu and A.D.I. George

Journal of Fisheries International 4 ( 1 ): 5 - 7 , 2009