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> Siluriformes (Catfishes) > Auchenipteridae (Driftwood catfishes) > Auchenipterinae
Etymology: Trachelyopterus: Greek, trachelos = neck + greek, pteron = wing, fin (Ref. 45335).
More on author: Linnaeus.

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

; agua dulce demersal; pH range: 6.0 - 7.5; dH range: ? - 18. Tropical; 20°C - 24°C (Ref. 2060)

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

South America: Widespread in northern South America.

Length at first maturity / Tamaño / Peso / Age

Maturity: L_m 10.8 range ? - ? cm
Max length : 30.0 cm TL macho / no sexado; (Ref. 115169); 23.0 cm TL (female); peso máximo publicado: 675.00 g (Ref. 115169); peso máximo publicado: 675.00 g; edad máxima reportada: 3.00 años (Ref. 35381)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 1; Radios blandos dorsales (total) : 5 - 6; Espinas anales: 0; Radios blandos anales: 20 - 25. The body is stocky, the head a little depressed, the inferior jaw a little prognathous, the cephalic helmet covered with finely pigmented skin in adults, with a fontanelle shorter than the orbital diameter (Ref. 35381).

Occurs in swamps. Well-adapted to hypoxic environments, being able to survive for hours, emerged. Adults feed on small fishes, arthropods, worms and sometimes on fruits (Ref. 35381). The spiny structure of the pectoral fins enables the male to hold the females during mating (internal fertilization). Sperm can be kept in the female's genital tract for several months, owing to a gelatinous emission from the seminal vesicle of the male. At maturity, the size of the adhesive eggs (20% of the female's weight) is 3 mm. Nine days after hatching, alevin size is 1.5 cm and they feed on microscopic worms or small insects. At around 11 days, their negative phototropism pushes them to hide themselves under branches or rocks. Its pink flesh is highly appreciated by the local population (Ref. 27188).

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Main reference Upload your references | Referencias | Coordinador : Ferraris, Jr., Carl J. | Colaboradores

Ferraris, C.J. Jr., 2003. Auchenipteridae (Driftwood catfishes). p. 470-482. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 37098)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 20 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías: escaso valor comercial; Acuario: Comercial

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01738 (0.01327 - 0.02275), b=3.04 (2.96 - 3.12), in cm total length, based on LWR estimates for this species (Ref. 93245).

Nivel trófico (Ref. 69278): 3.1 ±0.40 se; based on food items.

Resiliencia (Ref. 120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (tmax=3).

Fishing Vulnerability (Ref. 59153): Low vulnerability (20 of 100).

Price category (Ref. 80766): Unknown.

Trachelyopterus galeatus (Linnaeus, 1766)