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Osteoglossiformes (Bony tongues) >
Notopteridae (Featherbacks or knifefishes) > Xenomystinae
Etymology: Xenomystus: Greek, xenos = strange + Greek, mystax = whiskered, used by Belon in 1553 to describe all fishes with whiskers (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Ecología
; agua dulce demersal; pH range: 6.0 - 8.0; dH range: 5 - 19. Tropical; 22°C - 28°C (Ref. 1672)
Africa: widely distributed in tropical Africa, in the Nile, Chad, Niger, Ogowe and Congo basins (Ref. 7431). Also present in coastal rivers in Sierra Leone, Liberia, Togo, Benin and Cameroon, but not found in Côte d'Ivoire nor Ghana (Ref. 7431).
Tamaño / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm SL macho / no sexado; (Ref. 31256)
Short description
Morfología | Morfometría
Espinas dorsales (total): 0; Espinas anales 0; Radios blandos anales: 108 - 130. Body height 5-5.4 x SL, head length 6.9-7.5 x SL, snout smaller than eye, eye diameter 3.8-4.5 x head length, maxilla extends to vertical of eye center or just under the eye's posterior border, ventral spines 25-32
Obligate air-breathing (Ref. 126274); Prefers quiet waters with vegetation. Females lay 150-200 eggs of 2 mm diameter (Ref. 1672). Can produce barking sounds. Comes to the surface from time to time to swallow air. Feeds at dusk and during the night on worms, crustaceans, insects and snails (Ref. 7020).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Roberts, T.R., 1992. Systematic revision of the old world freshwater fish family Notopteridae. Ichthyol. Explor. Freshwat. 2(4):361-383. (Ref. 7431)
IUCN Red List Status (Ref. 126983)
Threat to humans
Harmless
Human uses
Pesquerías: sin interés; Acuario: Comercial
Más información
Age/SizeCrecimientoLength-weightLength-lengthLength-frequenciesMorfometríaMorfologíaLarvaDinámica larvariaReclutamientoAbundanciaBRUVS
ReferenciasAcuiculturaPerfil de acuiculturaRazasGenéticaFrecuencias de alelosheritabilidadEnfermedadesProcesamientoNutrientsMass conversion
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00318 - 0.02175), b=2.99 (2.77 - 3.21), in cm total length, based on LWR estimates for this Subfamily-BS (Ref.
93245).
Nivel trófico (Ref.
69278): 3.3 ±0.44 se; based on food items.
Resiliencia (Ref.
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (27 of 100).