That's dinner sorted, then. That fella above is most likely a Nile Perch, found in the Congo, Nile, Senegal and other areas in that region. They can grow close to half a tonne in weight and more than six feet in length and they're mean bastards too, dominating their habitats with fierce predatory instincts. They even eat the weaker members of their own species.. Yikes.
Should you ever find yourself in the position of angling in one of these guys you can pretty much cook it any which way you'd want. It is of mild flavour, but its high oil content makes it a prime candidate for the smoker.