Fig. 3

Monthly changes in the gonadosomatic index (GSI) for female and male brown bullhead (Ameiurus nebulosus) from the study area. Values with different letters (a, b, c, d) indicate significant differences (p < 0.05; ANOVA test).

Monthly changes in the gonadosomatic index (GSI) for female and male brown bullhead (Ameiurus nebulosus) from the study area. Values with different letters (a, b, c, d) indicate significant differences (p < 0.05; ANOVA test).