Phractocephalus hemioliopterus, Redtail catfish : fisheries, gamefish, aquarium

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Phractocephalus hemioliopterus (Bloch & Schneider, 1801)

Redtail catfish
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Image of Phractocephalus hemioliopterus (Redtail catfish)
Phractocephalus hemioliopterus
Picture by Jean-Francois Helias / Fishing Adventures Thailand

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Siluriformes (Catfishes) > Pimelodidae (Long-whiskered catfishes)
Etymology: Phractocephalus: Greek, phraktos = fence + Greek, kephale = head (Ref. 45335).
More on authors: Bloch & Schneider.

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

Freshwater; demersal; pH range: 5.5 - 6.8; dH range: ? - 10; potamodromous (Ref. 51243). Tropical; 20°C - 26°C (Ref. 2060)

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

South America: Amazon and Orinoco River basins.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 85 - ? cm
Max length : 135 cm TL male/unsexed; (Ref. 111518); common length : 60.0 cm TL male/unsexed; (Ref. 12193); max. published weight: 44.2 kg (Ref. 40637)

Biology     Glossary (e.g. epibenthic)

Feeds on fish, crabs and fruits (Ref. 6868). The species is introduced but not established in Florida.

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

Main reference Upload your references | References | Coordinator | Collaborators

Lundberg, J.G. and M.W. Littmann, 2003. Pimelodidae (Long-whiskered catfishes). p. 432-446. 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. 36506)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 27 December 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: minor commercial; gamefish: yes; aquarium: commercial
FAO - Publication: search | FishSource |

More information

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Spawning aggregation
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
BRUVS
References
Aquaculture
Aquaculture profile
Strains
Genetics
Electrophoreses
Heritability
Diseases
Processing
Nutrients
Mass conversion
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Stamps, Coins Misc.
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00521 - 0.01596), b=3.07 (2.92 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  4.2   ±0.73 se; based on food items.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (81 of 100).
Price category (Ref. 80766):   Unknown.