Phractocephalus hemioliopterus (Bloch & Schneider, 1801)
Redtail catfish
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Phractocephalus hemioliopterus
Picture by Jean-Francois Helias / Fishing Adventures Thailand
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Picture by Jean-Francois Helias / Fishing Adventures Thailand
Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes (Catfish) > Pimelodidae (Long-whiskered catfishes)
Etymology: Phractocephalus: Greek, phraktos = fence + Greek, kephale = head (Ref. 45335).
Etymology: Phractocephalus: Greek, phraktos = fence + Greek, kephale = head (Ref. 45335).
Environment / Climate / Range Ecology
Freshwater; demersal; pH range: 5.5 - 6.8; dH range: ? - 10; potamodromous (Ref. 51243). Tropical; 20°C - 26°C (Ref. 2060)
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 85 - ? cm
Max length : 134 cm TL male/unsexed; (Ref. 40637); common length : 60.0 cm TL male/unsexed; (Ref. 12193); max. published weight: 44.2 kg (Ref. 40637)
Max length : 134 cm TL male/unsexed; (Ref. 40637); common length : 60.0 cm TL male/unsexed; (Ref. 12193); max. published weight: 44.2 kg (Ref. 40637)
Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri
South America: Amazon and Orinoco River basins.
Feeds on fish, crabs and fruits (Ref. 6868). The species is introduced but not established in Florida.
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.
IUCN Red List Status (Ref. 90363)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial; gamefish: yes; aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us
More information
Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Tools
Bio-Quiz | E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree
| Catch-MSY |
Special reports
Download XML
Internet sources
Alien/Invasive Species database | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805): PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00000 (0.00000 - 0.00000), b=0.00 (0.00 - 0.00), based on (Ref. 93245).
Trophic Level (Ref. 69278): 4.2 ±0.73 se; Based on food items.
Resilience (Ref. 69278): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153): High to very high vulnerability (67 of 100) .