Classificazione / Nomi
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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); perobana: Name 'perobana' from 'pero', an allusion to the conservation unit of Parana State named 'Reserva Biológica das Perobas' and '-ana', a feminine Latin suffix meaning 'pertaining to'.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce demersale. Tropical
South America: Brazil.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 7.6 cm SL maschio/sesso non determinato; (Ref. 137457)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 2; Raggi dorsali molli (totale) : 7; Spine anali: 2; Raggi anali molli: 5 - 6; Vertebre: 34 - 37. This species is distinguished by the following set of characters: six branched pectoral-fin rays; interopercular odontodes 28-29; vertebrae 34-37; opercular odontodes 13; branchiostegal rays 9; absence of conspicuous papillae on ventral region of head; presence of pelvic girdle and fin; long rictal barbel, 40.0-73.0% of HL; pelvic fins not reaching the urogenital opening; caudal fin truncate to rounded; first pectoral-fin ray not prolonged as a filament; color pattern of the caudal fin, presenting blotches, spots, or a homogeneous dark-brown or gray pattern in the proximal region; presence of a narrow mid-lateral stripe in some specimens; head, 17.2-20.6% of SL; pelvic fins 10.3-16.0%, pectoral fins 7.5-9.8% of SL; color pattern of some specimens, consisting in a dark-gray to dark-brown, becoming lighter towards ventral portion of the body and head, and absence of chromatophores, or some specimens with irregular dark-brown blotches on the inner skin layer, larger than two or three times the diameter of the orbit, sometimes coalescing and forming larger blotches, and an interrupted stripe in the mid-lateral region of the flank, over a plain yellowish to brown background; branchiostegal rays 9 (Ref. 137457).
Body shape (shape guide): elongated; Cross section: oval.
This species is found in streams with sandy, rocky, and pebbly substrates, bordered by marginal vegetation consisting of bushes and grassy banks (Ref. 137457).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Martins, I.C., R.B. dos Reis, B.H.M Stabile and W.J. da Graça, 2024. Iterative taxonomy reveals a new species of Cambeva (Siluriformes: Trichomycteridae) with intraspecific variation from the rio Piquiri and Ivaí basin, upper rio Paraná basin, Brazil. Neotropical Ichthyology 22(3):e230140. (Ref. 137457)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
Strumenti
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Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
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).
Livello trofico (Fonte Biblio.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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