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> Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Nannocharax:Latin, nannus = small + Greek, charax = a marine fish without identification (Ref. 45335). More on author: Pellegrin.
Africa: occurs in the Ogowe to Chiloango Rivers (Ref. 81638). Also reported from the marine lower Congo River (Ref. 80507) in Democratic Republic of the Congo. Report from the Inkisi River probably based on a locality error (Ref. 88779).
サイズ / 重さ / 年齢
成熟: Lm? range ? - ? cm Max length : 5.3 cm SL オス/雌雄の選別がない; (Ref. 81638)
背面の脊椎 (合計) : 0; 背鰭 (合計) : 13 - 16; 肛門の骨: 0; 臀鰭: 9 - 13. Diagnosis: anal fin with 2 unbranched and 7-11 branched rays; head and body with dark band along mid-lateral surface from snout to at least rear of caudal peduncle (Ref. 81638).
Body shape (shape guide): elongated.
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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
系統多様性指数 (参照 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00186 - 0.01072), b=3.17 (2.97 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (参照 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
漁業の脆弱性 (Ref. 59153): Low vulnerability (10 of 100). 🛈
