Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchi (squali e razze) (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 Ecologia

marino demersale; distribuzione batimetrica 73 - 329 m (Ref. 6589). Subtropical; 20°S - 35°S, 27°E - 37°E (Ref. 114953)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

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

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 25.0 cm TL maschio/sesso non determinato; (Ref. 6589)

Short description Chiavi di identificazione | Morfologia | Morfometria

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 Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Upload your references | Bibliografia | Coordinatore : Carvalho, Marcelo | Collaboratori

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

Pesca: di nessun interesse

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
Alimentazione
Consumo di cibo
Food rations
Predatori

Ecology
Ecologia

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Reclutamento
Abbondanza

Life cycle
Riproduzione
Maturità
Maturity/Gills rel.
Fecundity
Deposizione
Spawning aggregations
Uova
Egg development
Larve
Dinamica popolazioni larvali

Distribution
Stati
Aree FAO
Ecosystems
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Anatomy
Area branchiale
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetica
Heterozygosity
Ereditarietà

Human related
Aquaculture systems
Profili di acquacoltura
Varietà
Ciguatera cases
Stamps, coins, misc.

Outreach
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Taxonomy
Nomi Comuni
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Morfologia
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References
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Summary page | Point data | Nomi Comuni | Photos

Fonti Internet

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).

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

Resilienza (Ref. 120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Assuming fecundity<100).

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

Heteronarce garmani Regan, 1921