Azores Islands country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Stehmann, M. and D.L. Bürkel, 1984
National Database:

Common names from other countries

Torpille noire, Tremolina negra, Atlantic torpedo, ... more

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (tubarões e raias) (sharks and rays) > Torpediniformes (Electric rays) > Torpedinidae (Electric rays)
Etymology: More on author: Bonaparte.

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

marinhas bentopelágico; oceanódromo; intervalo de profundidade 2 - 800 m (Ref. 35509), usually 10 - 150 m (Ref. 35388). Subtropical; 60°N - 48°S, 180°W - 180°E (Ref. 114953)

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

Circumglobal. Eastern Atlantic: Scotland (rare in North Sea) to Morocco, whole of Mediterranean, but not Black Sea; Cap Blanc in Mauritania to Gulf of Guinea, São Tomé Island; Walvis Bay, Namibia to Mossel Bay, South Africa (Ref. 5578). Western Atlantic: Nova Scotia, Canada south to Brazil (Ref. 26340). Eastern Indian Ocean: Australia (Ref. 114953). Southwest Pacific: New Zealand (Ref. 114953).

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 180 cm TL macho/indeterminado; (Ref. 2803); common length : 40.0 cm TL macho/indeterminado; (Ref. 3261); peso máx. publicado: 90.0 kg (Ref. 7251)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Large ray with a huge, paddle-shaped caudal fin and with no papillae around spiracles. Shiny black or dark grey above, underside white (Ref. 5578). Broad subcircular disc, short snout anterior to the eyes. Smooth skin, short thick tail (Ref. 6902). Dark chocolate to purplish brown above, without spots, white below, but with edges of disc and pelvic fins of same hue as upper surface, tail with irregular dark margins (Ref. 6902).

Juveniles benthic over soft bottoms or near coral reefs (Ref. 12951) from 10-150 m; adults are semi-pelagic to pelagic, swimming in the water column and have been reported to migrate over long distances (Ref. 2803). Found on insular slopes to at least 925 m depth (Ref. 114953). Feeds mainly on pelagic and benthic bony fishes and small sharks (Ref. 5578). Ovoviviparous (Ref. 50449). Produces litters of up to 60 pups. In South Pacific region, males reaches maturity at ca. 60 cm TL (Ref. 114953). Packs a powerful electric shock of up to 220 volts (Ref. 9710).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). With up to 60 in a litter. Gestation period one year (Ref. 12951). Size at birth about 23 cm (Ref. 12951).

Referência principal Upload your references | Referências | Coordenador : Carvalho, Marcelo | Colaboradores

Stehmann, M. and D.L. Bürkel, 1984. Torpedinidae. p. 159-162. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and Mediterranean. UNESCO, Paris. Vol. 1. (Ref. 2803)

Status na Lista Vermelha da UICN (Ref. 130435)

Segura ou pouco preocupante (LC) ; Date assessed: 31 August 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

Other (Ref. 10011)

Uso pelos humanos

Pescarias: sem interesse

FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 7.3 - 27.5, mean 13.9 (based on 3020 cells).

Índice de diversidade filogenética (Ref. 82804): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01380 (0.01026 - 0.01858), b=2.99 (2.91 - 3.07), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Nível Trófico (Ref. 69278): 4.5 ±0.6 se; based on diet studies.

Resiliência (Ref. 120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Fec=60;).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Tetronarce nobiliana (Bonaparte, 1835)