1. Size-specific dietary habits, foraging preference and trophic level of the reticulate knife fish, Papyrocranus afer (Gunther, 1868) from a tropical lagoon in south west Nigeria.

2. Landmark-based morphometric and racial identification of stocks of Papyrocranus afer from Lekki Lagoon, Lagos Nigeria.

3. Biometrics and aspects of food and feeding habits of juveniles of Chrysichthys nigrodigitatus from Epe Lagoon.

4. Reproductive biology and artificial induction of breeding in a local ornamental fish.