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Growth performance of Nigerian fish stocks
Type: Journal Article
Parameters of the von Bertalanffy growth function are presented for 42 fish stocks belonging to 16 families, 22 genera and 27 species. The growth performance index, Phi '(= log K + 2logL sub( infinity )), was computed for ...
Population dynamics of the freshwater clam Galatea paradoxa (Donacidae) in the Cross River, Nigeria
Type: Journal Article
The growth of freshwater clam Galatea paradoxa (Born) from the Cross River, Nigeria, was studied based on a count of growth checks on shells, presumed to be laid down annually. Mean lengths at ages 1 to 5 were 4.1 cm, 5.9 ...
Length-weight relationships of the mudskipper Periopthalmus barbarus in the Imo River estuary, Nigeria
Type: Journal Article
The length-weight relationships, by sexes, and combined, and monthly condition factors of the mudskipper Periaphthalmus barbarus are presented, based on 1 079 specimens ranging from 1.6 to 15.6 cm (TL) sampled from April ...
Weight-fecundity relationships of Nigerian fish populations
Type: Journal Article
Parameters a and b of the power body weight (W) - fecundity (F=a W super(b)) are presented for 25 populations comprising 15 species of Nigerian fishes. Estimates of b varied between 0.511 (Parauchenoglanis akin) and 1.654 ...
Length weight relationships of Nigerian freshwater fishes
Type: Journal Article
Length-weight relationships of 73 fish populations, covering 20 families, 28 genera and 40 species inhabiting freshwater ecosystems in Nigeria, were estimated (73 cases) or assembled from the literature (20 cases), and ...