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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: Günther.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water pelagisch; pH range: 6.0 - 7.5; dH range: 7 - 15; potamodroom (Ref. 51243). Tropical; 22°C - 27°C (Ref. 1672)

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Africa: widespread, known from Senegal to Cameroon, including the Lake Chad basin (Ref. 2936, 80507, 81638, 86396). Also in the Dja and Bumba rivers (middle Congo River basin) in Cameroon (Ref. 46233). Reported from Ntem and Kribi Rivers (Ref. 51193), but not confirmed in Ref. 81638. Holotype from Gabon (Ref. 93570), without further specifications.

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 6.6 cm SL mannelijk / geslacht onbekend; (Ref. 2936)

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Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 11 - 14; Anale stekels: 0; Anale zachte stralen: 8 - 12. Diagnosis: body slightly elongate; head length 3.7-4.3x SL; 2.5-6 scales between anus and anal-fin base; 12-16 scales around caudal peduncle; 12-18 pectoral branched rays; 8-10 pelvic branched rays; series of separate spots along lateral line, not always distinct (frequently suffused by marbled color pattern on sides); scale formula 4-5.5/40-46 (Ref. 2936, 86396). 43-46 pored (except terminal 1-2) lateral line scales (Ref. 81638). Tip of pelvic fin extending distinctly beyond vent; dorsal portions of body with distinct dark, vertically oriented dark marks forming saddle-shaped pigmentation pattern; various dark marks on lateral surface of body without prominent, horizontally elongate dark spots on mid-lateral surface of body; dark pigmentation on body above horizontal through base of pectoral fin (Ref. 81638). 12-14 (Ref. 81638) or 11-14 (Ref. 2936, 86396) total dorsal fin branched rays. 10-12 (Ref. 81638) or 8-12 (Ref. 2936, 86396) total anal fin branched rays.

Maximum TL was recorded at 7.8 cm (Ref. 7094). Feeds on small invertebrates (Ref. 13614).

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Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Gosse, J.-P. and E.J. Coenen, 1990. Distichodontidae. p. 237-260. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren and O.R.S.T.O.M., Paris, 384 p. (Ref. 2936)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 01 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: ; Aquarium: Commercieel

FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.02188 (0.00867 - 0.05518), b=3.03 (2.81 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.4 ±0.45 se; based on food items.

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Prijsklasse (Ref. 80766): Unknown.

Nannocharax fasciatus Günther, 1867