Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (sharks and rays) > Torpediniformes (Electric rays) > Narkidae (Sleeper rays)
Etymology: Narke: Greek, narke = numbness (Ref. 45335).
More on author: Gmelin.

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

seewasser demersal; tiefenbereich 20 - 183 m (Ref. 6589). Subtropical; 23°S - 36°S, 13°E - 32°E (Ref. 114953)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Southeast Atlantic: Cape of Good Hope to central Natal, South Africa. Possibly occurring in Namibia, Mozambique and Madagascar (Ref. 5578, Ref. 114953).

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 38.0 cm TL Männchen/unbestimmt; (Ref. 5578)

Kurzbeschreibung Morphologie | Morphometrie

Small ray with an almost circular disc and an elongated caudal fin (Ref. 5578). Yellowish-brown above with yellowish patches on upper tail, yellow with brown margins below (Ref. 5578).

Occurs offshore on the shelf; also common on sandy and muddy bottoms at 20-115 m (Ref. 5578). Feeds mainly on polychaetes (Ref. 5578). Males reaches maturity at 18-23 cm TL, females at ca. 23 cm TL (Ref. 114953). Capable of giving a powerful shock (Ref. 5578). Incidental catch of trawlers (Ref. 5578). It is parasitised by the monogenean Electrocotyle whittingtoni in the gills (Ref. 124060).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : Carvalho, Marcelo | Partner

Compagno, L.J.V., 1986. Narkidae. p. 113-114. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 6589)

IUCN Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 24 April 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Other (Ref. 5578)

Nutzung durch Menschen

Aquarium: Kommerziell

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 12.7 - 20.6, mean 16 °C (based on 22 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6252 [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).

Trophic level (Ref. 69278): 3.1 ±0.26 se; based on food items.

Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (28 of 100).

Narke capensis (Gmelin, 1789)