Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Auchenipteridae
(Driftwood catfishes) > Auchenipterinae
Etymology: Ageneiosus: Greek, a = without + greek, geneias, -ados = bear, chin (Ref. 45335). More on author: Valenciennes.
The species Ageneiosus valenciennesi Bleeker, 1864 is considered valid in Eschmeyer (CofF ver. Jul. 2011: Ref. 87661). It is treated here a synonym of Ageneiosus militaris Valenciennes, 1835 following Ferraris (2007: Ref. 58032).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; pelagic; depth range - m (Ref. ), usually - m (Ref. ). Subtropical; 0°C -
South America: La Plata River basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm SL male/unsexed; (Ref. 37098); max. published weight: 135.00 g (Ref. 115169); max. published weight: 135.00 g
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00628 - 0.01592), b=2.95 (2.82 - 3.08), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.7 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=1-2, Fec<10,000; K=0.29).
Vulnerability (Ref. 59153
): Moderate vulnerability (40 of 100) .
Nutrients (Ref. 124155
): Calcium = 146 [58, 296] mg/100g ; Iron = 2.6 [1.4, 4.3] mg/100g ; Protein = 17.7 [15.4, 19.9] % ; Omega3 = 0.393 [0.173, 0.850] g/100g ; Selenium = 23.1 [8.9, 63.8] μg/100g ; VitaminA = 27.2 [8.9, 87.2] μg/100g ; Zinc = 1.64 [1.08, 2.42] mg/100g (wet weight);