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Table 3 Seasonal variation of GSI (mean ± SE) of C. gariepinus captured from the Ganga River

From: Morpho-meristics, maturity stages, GSI and gonadal hormone plasticity of African catfish Clarias gariepinus (Burchell 1822) that invaded into the Ganga River, India

Sites Summer Monsoon Winter
GSI (male) GSI (female) GSI (male) GSI (female) GSI (male) GSI (female)
Kanpur 0.26 ± 0.03 0.79 ± 0.31 0.62 ± 0.11 1.8 ±0.34 0.59 ± 0.03 1.46 ± 0.10
Allahabad 0.21 ±0.01 2.3 ±0.13 0.81 ± 0.33 11.2 ±0.43 0.43 ± 0.03 3.8 ±0.03
Varanasi 0.72 ±0.33 4.6 ±0.21 0.59 ± 0.13 17.8 ±0.53 0.71 ± 0.13 4.5 ±0.05
Ghazipur 0.22 ±0.02 5.5 ±0.30 0.31 ± 0.01 6.2 ±0.53 0.92 ±0.13 3.2 ±0.23