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Potamotrygon motoro (Müller & Henle, 1841)

South American freshwater stingray
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Potamotrygon motoro
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranquios (tiburones y rayas) (sharks and rays) > Myliobatiformes (Stingrays) > Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335).
More on authors: Müller & Henle.

Issue
Authorship of species is credited to Müller & Henle (1841) and not Naterrer (who collected the type specimen) as in Rosa (1985a). A widespread species that may require further subdivision after more study. Studies of its reproductive biology indicate that females attain sexual maturity between 24 and 32 cm DW (males between 20 and 30 cm DW), and may produce from three to 21 embryos per gestation (Achenbach & Achencbach, 1976) or only six or seven (Thorson et al., 1983b; these differences may be populational). Larger specimens may weigh 10 kg. This species has been captively bred in aquaria, but is still the most comercially imported species by the aquarium industry. Additional references: Bertin (1939), Castex & Castello (1970b), Achenbach & Achenbach (1976), Thorson et al. (1983b), Sérét & McEachran (1986), Ortega & Vari (1986), Paepke & Schmidt (1988), Barriga (1991), Compagno & Cook (1995), Lasso et al. (1997a), Ferreira et al. (1998), Britski et al. (1999).

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

; agua dulce bentopelágico; pH range: 5.0 - 6.0; dH range: 10 - ?; potamodromo (Ref. 51243). Tropical; 24°C - 26°C (Ref. 2060)

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

South America: Uruguay, Paraná-Paraguay, Orinoco, and Amazon River basins.

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm WD macho / no sexado; (Ref. 36687); peso máximo publicado: 34.2 kg (Ref. 85107)

Biología     Glosario (por ej. epibenthic)

Found in freshwater rivers. It is an extremely dangerous species. Maximum length reported in Axelrod et al., 1991 (Ref. 6398) is 100 cm TL.

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

16 pups were born by one female in captivity (Ref. 57489).

Main reference Upload your references | Referencias | Coordinador : Carvalho, Marcelo | Colaboradores

Ortega, H. and R.P. Vari, 1986. Annotated checklist of the freshwater fishes of Peru. Smithson. Contrib. Zool. (437):1-25. (Ref. 6329)

IUCN Red List Status (Ref. 130435)

  Data deficient (DD) ; Date assessed: 01 October 2005

CITES


CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Traumatogenic (Ref. 4716)





Human uses

Pesquerías: escaso valor comercial; Acuario: Acuarios públicos
FAO - Publication: search | FishSource |

Más información

Trophic ecology
componentes alimenticios
Diet compositions
Food consumptions
Food rations
Despredadores
Ecology
Ecología
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproducción
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larva
Dinámica larvaria
Anatomy
Gill areas
Cerebros
Otolitos
Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natación
Swimming speeds
Visual pigment(s)
Sonidos de peces
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genética
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Perfiles de acuicultura
Razas
Ciguatera cases
Stamps, coins, misc.
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References
Referencias

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Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Nivel trófico (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
Generation time: 6.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resiliencia (Ref. 120179):  Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec=16).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (54 of 100).
Price category (Ref. 80766):   Medium.