The meristic and morphometric traits revealed the intermediate character of the studied hybrids (Table 1). After correcting morphometric traits for standard length, a significant effect of fish group was found on 12 morphometric traits from a total of 21 such traits (ANOVA, p b 0.05). Of these 12 morphometric traits affected by fish group, 10 morphometric
traits were intermediate in hybrids and two were higher in hybrids compared to both parental species. Concerning the traits with intermediate values for hybrids, the Tukey post hoc test revealed significant differences (p b 0.05) only between C. gibelio and both C. carpio and hybrids with respect to 3 traits, only between C. carpio and both C. gibelio and hybrids with respect to 3 traits, only between two parental species with respect to 1 trait, and between all pairs with respect to 3 traits.