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Oxydoras niger (Valenciennes, 1821)

Ripsaw catfish
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Oxydoras niger
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Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Doradidae (Thorny catfishes) > Doradinae
Etymology: Oxydoras: Greek, oxys = sharp + Greek, dora = skin (Ref. 45335).
More on author: Valenciennes.

Issue
Occurrence in Orinoco basin tentative, dependent upon identification of questionable synonym Oxydoras holdeni Fernández-Yépez; specimens of Oxydoras niger reported from Venezuela by Fernández-Yépez 1968:57 pertain to Oxydoras sifontesi Fernández-Yépez. Species-level distinctiveness of São Francisco and Amazonas Oxydoras not investigated.

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

; Água doce demersal; pH range: 6.0 - 7.8; dH range: ? - 25. Tropical; 21°C - 24°C (Ref. 2060)

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

South America: Amazon, São Francisco and Essequibo River basins. Possibly in the Orinoco River basin.

Length at first maturity / Tamanho / Peso / Idade

Maturity: Lm 62.5  range ? - ? cm
Max length : 100.0 cm SL macho/indeterminado; (Ref. 37054); common length : 59.0 cm SL macho/indeterminado; (Ref. 9081); peso máx. Publicado: 11.0 kg (Ref. 40637); peso máx. Publicado: 11.0 kg

Biologia     Glossário (ex. epibenthic)

Occurs over mud in streams and lakes. Forms schools (Ref. 9084). Feeds on detritus, chironomid and ephemeropteran larvae, and crustaceans (Ref. 9096). Known from temperatures ranging from 24-29.8 °C, pH range of 5-9, and an alkalinity range of 42-142.

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador : Ferraris, Jr., Carl J. | Colaboradores

Sabaj, M.H. and C.J. Ferraris Jr., 2003. Doradidae (Thorny catfishes). p. 456-469. 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. 37054)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Preocupação menor (LC) ; Date assessed: 02 December 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless





Utilização humana

Pescarias: pouco comercial; Aquário: Espécies comerciais
FAO - Publication: search | FishSource |

Mais informação

Trophic ecology
Itens alimentares
Diet compositions
Food consumptions
Food rations
Predadores
Ecology
Ecologia
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequência de comprimento
Mass conversions
Recruitments
Abundances
Life cycle
Reprodução
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvas
Dinâmica larvar
Anatomy
Gill areas
Cérebros
Outras referências
Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natação
Swimming speeds
Visual pigment(s)
Sons de peixes
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genética
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Perfis para aquacultura
Estirpes
Ciguatera cases
Stamps, coins, misc.
Outreach
Colaboradores
References
Referências

Ferramentas

Relatórios especiais

Descarregue XML

Fontes da internet

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=0.01122 (0.00680 - 0.01852), b=3.07 (2.93 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nível Trófico (Ref. 69278):  2.8   ±0.29 se; based on food items.
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (73 of 100).
Categoria de preço (Ref. 80766):   Unknown.