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Phractocephalus - Species in
Pimelodidae - - Classification -
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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
Brazil country information
Common names:
Cajaro, Laitu, Parabebe
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: minor commercial | Ref: Ferreira, E.J.G., J. Zuanon and G.M. dos Santos, 1996
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Lundberg, J.G. and M.W. Littmann, 2003
National Database:
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: minor commercial | Ref: Ferreira, E.J.G., J. Zuanon and G.M. dos Santos, 1996
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Lundberg, J.G. and M.W. Littmann, 2003
National Database:
Common names from other countries
Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa
> Siluriformes (Catfishes) > Pimelodidae (Long-whiskered catfishes)
Etymology: Phractocephalus: Greek, phraktos = fence + Greek, kephale = head (Ref. 45335).
More on authors: Bloch & Schneider.
Etymology: Phractocephalus: Greek, phraktos = fence + Greek, kephale = head (Ref. 45335).
More on authors: Bloch & Schneider.
Environment: milieu / climate zone / depth range / distribution range पारिस्थितिकी
; स्वच्छ जल, अलवण जल ड़िमरसल; pH range: 5.5 - 6.8; dH range: ? - 10; पोटामोड़िरोमस (Ref. 51243). Tropical; 20°C - 26°C (Ref. 2060)
वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri
South America: Amazon and Orinoco River basins.
Length at first maturity / आकार / वज़न / Age
Maturity: Lm ?, range 85 - ? cm
Max length : 135 cm TL पुल्लिंग / अलिंग; (Ref. 111518); common length : 60.0 cm TL पुल्लिंग / अलिंग; (Ref. 12193); अधिकतम प्रकाशित वज़न: 44.2 kg (Ref. 40637)
Max length : 135 cm TL पुल्लिंग / अलिंग; (Ref. 111518); common length : 60.0 cm TL पुल्लिंग / अलिंग; (Ref. 12193); अधिकतम प्रकाशित वज़न: 44.2 kg (Ref. 40637)
Feeds on fish, crabs and fruits (Ref. 6868). The species is introduced but not established in Florida.
Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा
Main reference
Upload your references | संदर्भ | संयोजक | सहयोगीयो
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: Version 2024-2)
Least Concern (LC) ; Date assessed: 27 December 2020
Threat to humans
Harmless
Human uses
मात्स्यिकी: लघु वाणिज्य; आखेट मत्स्य: हां; जलजीवालय: व्यापारिक
FAO(Publication : search) | FishSource |
अधिक जानकारी
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
भर्ती
बहुतायत
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
भर्ती
बहुतायत
Life cycle
पुनरुत्पत्ति
परिपक्व अवधि
Fecundity
मछलीऔ का अंडे देना
Spawning aggregations
अंडे
Egg development
लार्वा
लारवल गतिकी
पुनरुत्पत्ति
परिपक्व अवधि
Fecundity
मछलीऔ का अंडे देना
Spawning aggregations
अंडे
Egg development
लार्वा
लारवल गतिकी
Anatomy
गिल क्षेत्र
Brain
Otolith
गिल क्षेत्र
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
आनुवंशिकी
Heterozygosity
हैरेटिबिलटी
आनुवंशिकी
Heterozygosity
हैरेटिबिलटी
साधन
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Special reports
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Summary page | Point data | आम नाम | Photos
इंटरनेट स्रोत
Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(वर्ग, प्रजाति) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | सार्वजनिक लजीवालय | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, खोज) | World Records Freshwater Fishing | Zoological Record
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 (0.00510 - 0.01632), 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.
लौटाव (Ref. 120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153): Very high vulnerability (81 of 100).