Ageneiosus inermis, Manduba : fisheries, gamefish, aquarium

Ageneiosus inermis (Linnaeus, 1766)

Manduba
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Ageneiosus inermis
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Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | 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.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

; zoet water pelagisch; pH range: 6.5 - 7.8; dH range: ? - 20. Tropical; 22°C - 24°C (Ref. 2060)

Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri

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

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 64.8 cm TL mannelijk / geslacht onbekend; (Ref. 111518); max. gepubliceerd gewicht: 3.1 kg (Ref. 111518)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Anale zachte stralen: 34 - 40; Wervels: 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).
Body shape (shape guide): elongated.

Biologie     Verklarende woordenlijst (bv. epibenthic)

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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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).

Hoofdreferentie Upload uw referenties | Referenties | Coördinator : Ferraris, Jr., Carl J. | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2)

  Niet bedreigd (LC) ; Date assessed: 07 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: commercieel; sportvis: ja; Aquarium: Publieke aquaria
FAO - Publication: search | FishSource |

Meer informatie

Trofische ecologie
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genoom
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Schattingen op basis van modellen

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00735 - 0.01241), b=3.03 (2.97 - 3.09), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trofisch niveau (Ref. 69278):  4.0   ±0.66 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Assuming tm=2-4, Fec>1000).
Kwetsbaarheid van de visserij (Ref. 59153):  Moderate to high vulnerability (46 of 100). 🛈
Prijsklasse (Ref. 80766):   Unknown.
Voedingsstoffen (Ref. 124155):  Calcium = 109 [55, 259] mg/100g; Iron = 1.47 [0.80, 2.90] mg/100g; Protein = 17.7 [15.4, 19.8] %; Omega3 = 0.247 [0.100, 0.606] g/100g; Selenium = 36.8 [13.5, 100.3] μg/100g; VitaminA = 31.7 [10.5, 99.2] μg/100g; Zinc = 1.42 [0.91, 2.14] mg/100g (wet weight); based on nutrient studies.