Uruguay country information

Common names: Catfish, Manduví
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/uy.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Nión, H., C. Ríos and P. Meneses, 2002
National Database: Dinara

Common names from other countries

Manduvi, Haplochromis quads, Catfish, ... more

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Auchenipteridae (Driftwood catfishes) > Auchenipterinae
Etymology: Ageneiosus: Greek, a = without + greek, geneias, -ados = bear, chin (Ref. 45335).
More on author: Linnaeus.

Issue
Redescribed in Walsh (pers comm., and 1990) as Ageneiosus brevifilis Valenciennes.

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

; agua dulce pelágico; pH range: 6.5 - 7.8; dH range: ? - 20. Tropical; 22°C - 24°C (Ref. 2060)

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

South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Suriname, and Venezuela (Ref. 37098). Reported from Uruguay (Ref. 54736).

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 64.8 cm TL macho / no sexado; (Ref. 111518); peso máximo publicado: 3.1 kg (Ref. 111518)

Short description Claves de identificación | Morfología | Morfometría

Radios blandos anales: 34 - 40; Vértebra: 46 - 51. Body naked and elongated. Head is pointed and depressed at the top. Mouth is big and wide. The lateral eyes are situated along the level of the mouth, ensuring a vision above and below. Exhibits sexual dimorphism, like A. dentatus. The first ray of the dorsal fin is very long and has pointed spines (Ref. 35381).

Prefers rivers in overgrown backwaters where the current is not too strong. Reported to be nocturnal. Feeds on fish and crustaceans. The flesh is esteemed for its very fine flavor. Frequently captured with nets, with males difficult to release from the nets because of its strong dorsal spine that is bordered with denticles (Ref. 27188). During reproduction, the mandibular barbels and dorsal spine of the male change, and a copulatory organ appears at the anterior level of the anal fin. Fertilization is internal, the female being capable of keeping the spermatozoids inserted in the epithelium of her genital tract (Ref. 35381).

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

Female lays eggs on plants a few days after fertilization (Ref. 2060). The females can preserve keep fertile spermatozoids by coating these with secretions of maternal origin and inserting these in the epithelium of its genital tract (Ref. 27188).

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: 07 August 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías: comercial; pesca deportiva: si; Acuario: Acuarios públicos

FAO(Publication : search) | FishSource |

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Trophic ecology
componentes alimenticios
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Ecology
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References
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Datos específicos | Nombres comunes | Photos

Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00832 (0.00666 - 0.01038), b=3.08 (3.02 - 3.14), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Nivel trófico (Ref. 69278): 4.0 ±0.66 se; based on food items.

Resiliencia (Ref. 120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Assuming tm=2-4, Fec>1000).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (46 of 100).

Price category (Ref. 80766): Unknown.

Ageneiosus inermis (Linnaeus, 1766)