Analysis of morphometric and meristic variability in Barbus callensis populations (Pisces, Cyprinidae) from Tunisia

These biometrical investigations were performed on ten Tunisian populations of Barbus callensis collected in different streams, rivers and reservoirs all over the country. The statistical analysis (CAN-DISC) showed the ecological and genetical isolation of one northwestern population belonging to an Algerian catchment from the other Tunisian populations, who appeared more uniform. While preserving their original gene pool, most Tunisian strains seem to be acquiring original characters among North-African B. callensis.