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Río Meta basin | Río Apure basin | Río Ucayali basin | ||||||||||||
H | n | Range | Mean | SD | n | Range | Mean | SD | H | n | Range | Mean | SD | |
Standard length (mm) | 77.2 | 43 | 51.3-93.1 | 67.5 | - | 97 | 32.4-76.7 | 44.5 | - | 44.4 | 12 | 32.7-44.4 | 36.8 | - |
Percents of Standard length | ||||||||||||||
Predorsal distance | 50.8 | 43 | 47.4-53.3 | 50.6 | 1.4 | 97 | 48.4-56.2 | 52.5 | 1.4 | 52.8 | 12 | 52.1-55.2 | 53.6 | 1.0 |
Prepelvic distance | 42.2 | 43 | 39.8-45.3 | 42.0 | 1.3 | 97 | 37.9-49.3 | 43.9 | 1.5 | 43.9 | 12 | 43.6-45.7 | 44.8 | 0.7 |
Prepectoral distance | 22.5 | 43 | 21.0-24.6 | 22.7 | 0.7 | 97 | 21.7-26.2 | 23.6 | 0.9 | 23.1 | 12 | 23.1-25.2 | 24.1 | 0.6 |
Preanal distance | 58.4 | 43 | 53.3-60.7 | 57.1 | 1.9 | 97 | 54.7-62.1 | 58.1 | 1.6 | 58.9 | 12 | 56.5-60.5 | 59.1 | 1.1 |
Depth at dorsal-fin origin (m) | - | 19 | 26.4-31.5 | 29.9 | 1.2 | 27 | 25.6-33.4 | 28.4 | 1.8 | - | - | - | - | - |
Depth at dorsal-fin origin (f) | 33.5 | 24 | 29.4-37.0 | 32.5 | 1.7 | 70 | 25.6-36.5 | 31.5 | 2.2 | 32.4 | 12 | 30.0-33.6 | 31.6 | 1.3 |
Caudal peduncle depth | 12.4 | 43 | 10.6-12.5 | 11.5 | 0.5 | 97 | 9.5-13.0 | 10.8 | 0.6 | 12.4 | 12 | 11.0-13.6 | 12.2 | 0.8 |
Caudal peduncle length | 13.5 | 43 | 10.7-15.3 | 13.2 | 1.0 | 97 | 11.1-14.9 | 12.9 | 0.8 | 15.9 | 12 | 13.6-19.3 | 16.8 | 1.4 |
Anal-fin base | 33.2 | 43 | 31.4-37.7 | 34.6 | 1.3 | 97 | 30.4-36.4 | 33.2 | 1.1 | 28.2 | 12 | 26.6-30.4 | 28.0 | 1.1 |
Dorsal-fin length | 22.6 | 43 | 21.6-26.6 | 24.0 | 1.1 | 97 | 19.0-27.6 | 24.0 | 1.1 | 23.4 | 12 | 22.8-25.6 | 23.7 | 0.7 |
Pelvic-fin length (m) | - | 19 | 13.4-16.5 | 14.7 | 0.9 | 27 | 13.0-15.6 | 14.4 | 0.7 | - | - | - | - | - |
Pelvic-fin length (f) | 14.0 | 24 | 13.0-15.2 | 14.1 | 0.6 | 70 | 12.7-16.3 | 14.1 | 0.7 | 13.6 | 12 | 13.0-14.6 | 13.8 | 0.5 |
Pectoral-fin length (m) | - | 19 | 18.8-25.8 | 21.5 | 1.6 | 27 | 19.5-22.0 | 21.0 | 0.6 | - | - | - | - | - |
Pectoral-fin length (f) | 21.2 | 24 | 19.5-23.6 | 21.1 | 1.0 | 70 | 18.6-22.8 | 21.3 | 0.8 | 22.1 | 12 | 20.7-23.7 | 22.1 | 0.7 |
Head length | 21.4 | 43 | 20.4-23.6 | 21.6 | 0.7 | 97 | 21.4-25.0 | 23.2 | 0.8 | 23.8 | 12 | 23.7-25.8 | 24.8 | 0.7 |
Percents of Head length | ||||||||||||||
Snout length | 24.9 | 43 | 20.2-24.4 | 22.0 | 0.9 | 97 | 18.3-24.3 | 22.1 | 1.1 | 21.3 | 12 | 19.3-22.9 | 20.9 | 1.0 |
Upper jaw length | 45.3 | 43 | 40.9-46.5 | 43.6 | 1.4 | 96 | 40.8-50.3 | 45.4 | 1.7 | 50.2 | 12 | 44.5-50.2 | 47.7 | 1.7 |
Orbital diameter | 28.7 | 43 | 26.0-34.5 | 31.1 | 1.8 | 97 | 26.8-38.7 | 34.2 | 1.8 | 33.2 | 12 | 33.2-37.6 | 35.7 | 1.1 |
Interorbital width | 33.1 | 43 | 30.3-35.9 | 32.7 | 1.2 | 97 | 29.6-34.7 | 32.4 | 1.1 | 34.1 | 12 | 32.7-35.6 | 34.1 | 0.8 |