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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); caudofasciatus: Derived from the Latin cauda (tail) and fasciatus (with bars), referring to the caudal-fin color pattern.
More on authors: Alencar & Costa.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce demersal. Tropical
South America: southeastern Brazil.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 5.3 cm SL macho / no sexado; (Ref. 53352)
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 10 - 11; Radios blandos anales: 9; Vértebra: 35 - 37. Distinguishable from all other species of the genus by the combination of the following characters: 7-8 pectoral-fin rays, long filamentous first pectoral-fin ray (about 50-70% pectoral-fin length), 10-20 opercular odontodes, 30-52 interopercular odontodes, opercular patch of odontodes wide, and 6-7 branchiostegal rays. Can be easily distinguished from T. alternatus, T. longibarbatus and T. pantherinus by possessing a single median last supraorbital pore (vs. paired pore). Distinguished from all other species of the genus from the Brazilian Shield River basins by having a unique color pattern of four gray bars on the caudal fin (Ref. 53352).
Inhabits both turbid and clear water with shallow water (40-100 cm deep). Sometimes found swimming in daylight, but mostly collected under marginal vegetation or under vegetal debris on the bottom (Ref. 53352).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Alencar, A.R. and W.J.E.M. Costa, 2004. Description of two new species of the catfish genus Trichomycterus from southeastern Brazil (Siluriformes: Trichomycteridae). Zootaxa 744:1-8. (Ref. 53352)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: sin interés
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=0.00912 (0.00394 - 0.02111), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Resiliencia (Referencia 120179) |
Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Assuming Fec < 100). |
Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |