Table 1 Morphometric and meristic counts (mean ± SE) of C. gariepinus from culture and captured specimens from the Ganga River
Culture | River caught specimens from | Mean ± SE of I, II, III, IV | ||||
|---|---|---|---|---|---|---|
I Kanpur | II Allahabad | III Varanasi | IV Ghazipur | |||
Morphometric parameters (in cm) | ||||||
Total length (TL) | 50.00 ± 0.61 | 42.3–47.0 | 38.4–48.0 | 43.7–52.4 | 11.7–50.7 | 43.46 ± 3.12 |
Standard length (SL) | 37.08 ± 1.37 | 34.6–40.8 | 33.8–42.3 | 40.4–48.6 | 8.6–46.5 | 38.38 ± 3.04 |
Head depth (HD) | 8.32 ± 0.09 | 5.0–7.2 | 6.3–7.3 | 7.9–8.4 | 4.2–8.5 | 7.05*± 0.38 |
Body depth at anus (BAD) | 3.58 ± 0.06 | 3.5–4.0 | 3.6–3.9 | 3.5–3.8 | 2.4–3.7 | 3.56 ± 0.12 |
Snout length (SNL) | 4.38 ± 0.09 | 2.0–2.8 | 2.4–3.1 | 2.8–3.5 | 1.7–3.4 | 2.73 ± 0.16 |
Eye diameter (ED) | 1.17 ± 0.03 | 1.0–1.2 | 1.0–1.3 | 1.0–1.3 | 0.8–1.3 | 1.13 ± 0.04 |
Dorsal fin length (DFL) | 28.55 ± 0.14 | 19.1–25.8 | 21.8–26.3 | 25.4–29.2 | 5.8–28.8 | 24.07 ± 1.87 |
Pectoral fin length (PECFL) | 4.78 ± 0.10 | 3.5–4.7 | 3.7–4.4 | 3.8–4.6 | 2.4–4.7 | 4.07 ± 0.19 |
Pelvic fin length (PELFL) | 3.99 ± 0.11 | 3.2–3.6 | 3.1–3.8 | 3.1–3.6 | 3–21.2 | 4.85 ± 1.49 |
Anal fin length (AFL) | 11.63 ± 0.89 | 11.5–18.7 | 15.8–19.4 | 10.8–11.8 | 4.1–11.9 | 13.58 **± 1.32 |
Caudal fin length (CFL) | 12.93 ± 0.79 | 5.4–10.1 | 4.6–5.7 | 3.3–4.1 | 2.4–4.2 | 5.02 ± 0.60 |
Pre-pelvic distance from tip of mouth (PPELD) | 20.67 ± 0.14 | 14.3–16.8 | 15.2–17.2 | 16.4–18.9 | 4.1–20.1 | 15.79 ± 1.15 |
Pre-pectoral distance from tip of mouth (PPECD) | 10.48 ± 0.10 | 7.4–7.7 | 7.3–7.5 | 7.6–9.2 | 3.2–10.2 | 7.60 ± 0.47 |
Pre-anal distance from tip of mouth (PAD) | 25.46 ± 0.13 | 17.3–20.6 | 18.9–21.8 | 21.1–25.6 | 7.6–26.4 | 20.39 ± 1.39 |
Caudal peduncle depth (CPD) | 3.76 ± 0.11 | 3.0–5.4 | 4.6–5.7 | 3.3–4.1 | 2–4.2 | 4.18 ± 0.31 |
Pectoral spine length (PECSL) | 3.64 ± 0.10 | 2.4–4.1 | 2.9–4.3 | 3.4–4.2 | 2.0–4.7 | 3.49 ± 0.24 |
Head length (HL) | 12.23 ± 0.37 | 10.1–10.3 | 10.3–11.3 | 7.2–7.7 | 2.5–8.2 | 8.58*± 0.71 |
Weight (W) g | 953.83 ± 16.18 | 430–520 | 380–670 | 690–815 | 170–838 | 578.42 ±59.10 |
Meristic parameters | ||||||
Dorsal fin rays (DFR) | 71.33 ± 0.45 | 70–74 | 70–73 | 70–74 | 70–72 | 71.42 ± 0.43 |
Anal fin rays (AFR) | 52.42 ± 0.26 | 52–54 | 52–53 | 51–53 | 51–53 | 52.33 ± 0.26 |
Pectoral fin rays (PECFR) | 6.67 ± 0.31 | 8–9 | 8–9 | 6–8 | 6–9 | 7.92* ± 0.11 |
Pelvic fin rays (PELFR) | 6.92 ± 0.26 | 6–7 | 6–8 | 6–8 | 6–7 | 6.67 ± 0.22 |
Caudal fin rays (CFR) | 15.58 ± 0.23 | 15–16 | 15–17 | 15–17 | 15–16 | 15.67 ± 0.22 |