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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Cambeva: Probably derived from the Tupi-Guarani, is a popular name for trichomycterid fishes in southern and south-eastern Brazil (Ref. 119381); tourensis: Name 'tourensis' from the type locality of the species, Rio dos Touros.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce demersal. Subtropical
South America: Brazil.
Tamaño / Peso / Edad
Madurez: Lm ? range ? - ? cm
Max length : 6.4 cm SL macho / no sexado; (Ref. 137687)
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 11 - 12; Radios blandos anales: 9 - 10; Vértebra: 39. This species is distinguished from its congeners by the following set of characters: pelvic fins and girdle absent; branchiostegal rays 8; vertebrae 39; six pectoral-fin rays; filament on the extremity of the first pectoral-fin ray absent; anterior segment of the infraorbital latero-sensory canal absent; dorsal 18 and ventral 13 procurrent caudal-fin rays; opercular odontodes 9-11; jaw teeth sub-incisiform, tip rounded; autopalatine with a well-developed postero-lateral process; sesamoid supraorbital slender, without lateral projections, and long, about three times antorbital length; slender opercular odontode patch, with depth about half length of dorsal hyomandibula articular facet; lateral process of the parurohyal broad; pleural ribs 17 or 18 (Ref. 137687).
Body shape (shape guide): elongated; Cross section: oval.
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Costa, W.J.E.M., C.R.M. Feltrin, J.L.O. Mattos, P.F. Amorim and A.M. Katz, 2023. Phylogenetic relationships of new taxa support repeated pelvic fin loss in mountain catfishes from southern Brazil (Siluriformes: Trichomycteridae). Zoologischer Anzeiger 305:82-90. (Ref. 137687)
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): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00337 - 0.01709), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Vulnerabilidad pesquera (Ref.
59153): Low vulnerability (10 of 100).
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