espèce (1) échantillonnage (1) fleuve (1) eau douce (1) poisson (1) estuaire (1) distribution (1) Afrique (1) Area (1) Area (1) Winter (1) Summer (1) Species (1) Sparidae (1) South Africa (1) Sciaenidae (1) Sampling (1) Predatory animals (1) Nets (1) Striped mullet (1) Lithognathus (1) Impact (1) Gray mullets (1) Fresh water (1) Fishes (1) Argyrosomus (1) Anguilla reinhardtii (1) Rhabdosargus (1) Anguilla dieffenbachii (1) Introduced organisms (1)