Physiological changes corresponding to sex, age group and seasons are connected with the reproduction stages of fish. Gonadosomatic indices (GSI), hepatosomatic indices (HSI) Fulton’s condition factor (K) and somatic condition factor (Ks) of two age groups (2+ and 1+ year age) of female Amur common carp were measured during different seasons (spring, summer, autumn and winter). Significant differences (p | Seasonal changes in physiological conditions of female Amur common carp (Cyprinus carpio haematopterus)
