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Characiformes (Characins) >
Distichodontidae (Distichodus)
Etymology: Nannocharax: Latin, nannus = small + Greek, charax = a marine fish without identification (Ref. 45335).
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce pelágico. Tropical; 23°C - 26°C (Ref. 12468)
Africa: found in the area comprised between the Oshun River in Nigeria and the Cross River in Cameroon (Ref. 2936, 81638, 86396).
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 4.9 cm SL macho / no sexado; (Ref. 2936)
Espinas dorsales (total) : 0; Radios blandos dorsales (total) : 12 - 14; Espinas anales: 0; Radios blandos anales: 13 - 15. Diagnosis: 40-42 (Ref. 2936, 86396) or 39-43 (Ref. 81638) lateral line scales. Snout and anal fin long; head length 3.1-3.5x SL; 11-12 scales around caudal peduncle; 1 or 2 scales between anus and anal-fin origin; pectoral with total of 10-12 branched rays; pelvic with total of 9-10 branched rays; pectoral fins not reaching to pelvic fin bases; dorsal-fin origin distinctly ahead of pelvic-fin insertions (Ref. 2936, 86396). Head and body with dark band along mid-lateral surface from snout to at least rear of caudal peduncle (Ref. 81638). Mid-lateral band on body broad, with scale-centres light, and ending posteriorly in a rounded blotch that extends partly unto caudal-fin base (Ref. 2936, 86396). 12-13 (Ref. 81638) or 12-14 (Ref. 2936, 86396) total dorsal fin rays. 15 (Ref. 81638) or 13-15 (Ref. 2936, 86936) total anal fin rays.
Body shape (shape guide): elongated; Cross section: compressed.
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Vari, R.P., 2007. Distichodontidae. p. 412-465. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81638)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: comercial; Acuario: Comercial
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00447 (0.00185 - 0.01077), b=3.17 (2.96 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |
Categoría de precios (Ref. 80766) |
Unknown.
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