Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Torpediniformes (Electric rays) > Narkidae (Sleeper rays)
Etymology: Heteronarce: Greek, heteros = other + Greek, narke = numbness (Ref. 45335).
Eponymy: Dr Samuel Trevor Walton Garman (1843–1927) was an American naturalist, most noted as an ichthyologist and herpetologist. [...] (Ref. 128868), visit book page.
More on author: Regan.

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

marina bottenlevande; djupintervall 73 - 329 m (Ref. 6589). Subtropical; 20°S - 35°S, 27°E - 37°E (Ref. 114953)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Western Indian Ocean: southern Mozambique to Algoa Bay, South Africa (Ref. 5578).

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 25.0 cm TL hane/ej könsbestämd; (Ref. 6589)

Short description Bestämningsnycklar | Morfologi | Morfometri

Small ray with an elongated, narrow disc and a small, narrow caudal fin (Ref. 5578). Plain brown above, white below (Ref. 5578).

Found on the outer shelf and upper slope (Ref. 5578). Life history unknown. Males reaches maturity at ca. 17 cm TL (Ref. 114953).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator : Carvalho, Marcelo | Medarbetare

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 Red List Status (Ref. 130435: Version 2024-1)

Near Threatened (NT) (A2d); Date assessed: 01 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Other

Human uses

Fiskeri: saknar intresse

FAO - Publication: search | FishSource |

Ytterligare information

Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 15.2 - 22, mean 18.1 °C (based on 27 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5627 [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).

Trofisk nivå (Ref. 69278): 3.2 ±0.3 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Low vulnerability (15 of 100).

Heteronarce garmani Regan, 1921