Brazil country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Rio Doce basin, situated in the Serra do Brigadeiro (part of the Serra da Mantiqueira) range, southeastern Brazil (Ref. 90333).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Lezama, A.Q., M.L. Triques and P.S. Santos, 2012
National Database:

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> Siluriformes (Catfishes) > Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); argos: The specific name argos (Greek.), meaning a hundred-eyed monster, refers to the eye-spotted color pattern of the new species, not forming vermiculations..

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water demersaal; diepte 0 - ? m (Ref. 90333). Tropical; 14°C - 19°C (Ref. 90333)

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South America: Rio Doce basin in Brazil.

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 11.7 cm SL mannelijk / geslacht onbekend; (Ref. 90333)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale zachte stralen (totaal) : 8 - 9; Anale zachte stralen: 6 - 7. Distinguished by the following characters: pectoral fins with six branched rays; pectoral-fin ray prolonged as a filament; presence of pelvic fins; tip of nasal barbels extending to posterior border of opercular plate of odontodes; presence of a large foramen for ramus lateralis accessorius facialis, visible in dorsal view, in the parietosupraoccipital bone; transverse and straight border between the parietosupraoccipital and frontal bones; body covered with spots that seldom attain eye diameter; pelvic-fin origin placed one or two ocular diameters anterior to dorsal-fin origin; absence of spots fused as elongated marks on dorsum or flank (Ref. 90333).

Occurs in streams with depth and temperature varying from 13 to 44 cm and from 14 to 19°C. Preys on tadpoles of Scinax gr. catharinae under laboratory conditions (Ref. 90333).

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Lezama, A.Q., M.L. Triques and P.S. Santos, 2012. Trichomycterus argos (Teleostei: Siluriformes: Trichomycteridae), a new species from the Doce River Basin, Eastern Brazil. Zootaxa 3352:60-68. (Ref. 90333)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Onvoldoende gegevens (DD) ; Date assessed: 07 November 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00851 (0.00355 - 0.02043), b=2.93 (2.74 - 3.12), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

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

Trichomycterus argos Lezama, Triques & Santos, 2012