Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Nannocharax: Latin, nannus = small + Greek, charax = a marine fish without identification (Ref. 45335); rubrolabiatus: From the Latin ruber (red) and labium (lip) after its bright red colored lips (Ref.26632).

Environment: milieu / climate zone / profondeur / distribution range Écologie

; eau douce pélagique. Tropical; 23°C - 25°C; 8°N - 4°S

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri

Africa: Lower Guinea endemic, only known from the Sanaga River basin, Cameroon (Ref. 26632, 81638).

Taille / Poids / Âge

Maturité: L_m ? range ? - ? cm
Max length : 6.1 cm SL mâle / non sexé; (Ref. 81638)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 12 - 14; Épines anales: 0; Rayons mous anaux: 9 - 10; Vertèbres: 37. Diagnosis: 50-53 (Ref. 81638) or 46 (Ref. 26632) scales in lateral line. 6-7 anal fin branched rays; dorsal portions of body with distinct dark, vertically oriented dark marks that form saddle-shaped pigmentation pattern; prominent horizontally elongate, dark spots on mid-lateral surface of body (Ref. 81638).
Body shape (shape guide): elongated; Cross section: compressed.

Found under rocks, in riffles of moderately large rivers (30-50m) in the savannah zone, in areas where there is a strong current (>1m/sec); in all sites where collection took place, there was a rather restricted gallery of shrubs and small trees on the river banks; water was greenish with a transparency of about 50 cm, neutral pH (6.5-7.5), with a high content of dissolved oxygen (6.5-7.5 mg/l) and a rather low conductivity (35-45 µS/cm); water temperatures were between 23 and 25 °C at noon (Ref. 26632).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Van den Bergh, E.C., G.G. Teugels, E.J. Coenen and F. Ollevier, 1995. Nannocharax rubrolabiatus, a new species of distichodont fish from the Sanaga River Basin in Cameroon, Africa (Teleostei: Distichodontidae). Ichthyol. Explor. Freshwat. 6(4):349-356. (Ref. 26632)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)

Vulnerable (VU) (B2ab(iii)); Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: d'intérêt potentiel

FAO - Publication: search | FishSource |

Plus d'informations

Écologie trophique
Food items (preys)
Composition du régime alimentaire
Consommation alimentaire
Food rations
Prédateurs

Écologie
Écologie
Home ranges

Population dynamics
Paramètres de croissance
Max. ages / sizes
Length-weight rel.
Length-length rel.
Fréquences de longueurs
Mass conversion
Recrutement
Abondance

Life cycle
Reproduction
Maturité
Maturity/Gills rel.
Fécondité
Frai
Spawning aggregations
Œufs
Développement de l'œuf
Larves
Dynamique des populations larvaires

Distribution
Pays
Zones FAO
Écosystèmes
Occurrences
Introductions
BRUVS - Videos

Anatomy
Surface branchiale
Brain
Otolith

Physiology
Body composition
Nutrients
Consommation d'oxygène
Type de nage
Vitesse de nage
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Génétique
génôme
Génétique
Heterozygosity
Héritabilité

Human related
Aquaculture systems
Profils d'aquaculture
Souches
Ciguatera cases
Stamps, coins, misc.

Outreach
Collaborateurs

Taxonomy
Noms communs
Synonymes
Morphologie
Morphométrie
Images

Références
Références

Outils

Articles particuliers

Maintenance en aquarium | Articles sur l'espèce | Rapports d'aquaculture

Télécharger en XML

Page de résumé | Coordonnées géographiques | Noms communs | Photos

Sources Internet

Estimates based on models

Phylogenetic diversity index (Réf. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00447 (0.00189 - 0.01058), b=3.17 (2.96 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Réf. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

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

Catégorie de prix (Ref. 80766): Unknown.

Nannocharax rubrolabiatus Van den Bergh, Teugels, Coenen & Ollevier, 1995