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Teleostei (teleosts) > Siluriformes (Catfishes) > Doradidae (Thorny catfishes) > Doradinae
Etymology: Oxydoras: Greek, oxys = sharp + Greek, dora = skin (Ref. 45335).
Eponymy: Dr Rudolf Kner (1810–1869) was an Austrian zoologist specialising in ichthyology. [...] (Ref. 128868), visit book page.
More on author: Bleeker.

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

Freshwater; demersal. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Paraná River basin.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 70.0 cm TL male/unsexed; (Ref. 37054); max. published weight: 9.0 kg (Ref. 6868)

Omnivorous, feeding mainly on insects, crustaceans, mollusks, other invertebrates and some vegetable material (Ref. 6868).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Ferraris, Jr., Carl J. | Collaborators

Burgess, W.E., 1989. An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. T.F.H. Publications, Inc., Neptune City, New Jersey (USA). 784 p. (Ref. 6868)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 05 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
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Ecology
Ecology

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Length-weight rel.
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Life cycle
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Anatomy
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01514 (0.00660 - 0.03472), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.39 se; based on food items.

Generation time: 6.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.17).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (48 of 100).

Price category (Ref. 80766): Unknown.

Nutrients (Ref. 124155): Calcium = 84.4 [45.8, 169.8] mg/100g; Iron = 1.3 [0.8, 2.2] mg/100g; Protein = 17.2 [16.1, 18.2] %; Omega3 = 0.397 [0.156, 1.003] g/100g; Selenium = 70.8 [31.9, 148.7] μg/100g; VitaminA = 28.2 [10.2, 70.6] μg/100g; Zinc = 1.45 [0.97, 2.05] mg/100g (wet weight);

Oxydoras kneri Bleeker, 1862