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)
Eponymy: Major-General Thomas Hardwicke (1756–1835) served in the Bengal army of the Honourable East India Company. [...] (Ref. 128868), visit book page.
More on author: Gray.

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

marina bottenlevande. Tropical; 13°N - 2°N, 92°E - 111°E (Ref. 114953)

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Eastern Indian Ocean and North-West Pacific; Thailand to Vietnam, including Malaysia.

Length at first maturity / Size / Vikt / Age

Maturity: L_m 11.5, range 11 - 12 cm
Max length : 46.0 cm TL hane/ej könsbestämd; (Ref. 9913)

Found in continental waters, both inshore and offshore (Ref. 9913); primarily inshore on soft substrates (Ref. 114953). Probably feeds on small benthic invertebrates. Females reported to produce 4 pups a litter (Ref. 114953). Biology little known (Ref. 9913). Maturity size of males reaches at 8-10 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. and P.R. Last, 1999. Narkidae. Sleeper rays. p. 1443-1446. In K.E. Carpenter and V.H. Niem (eds.) FAO identification guide for fishery purposes. The living marine resources of the Western Central Pacific. FAO, Rome. (Ref. 9913)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Sårbar, se IUCNs rödlista (VU) (A2d); Date assessed: 31 October 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Other

Human uses

Fiskeri: kommersiell; Akvarium: Offentliga akvarier

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 23.2 - 28.4, mean 27.3 °C (based on 365 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0002 [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): 3.3 ±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): Moderate vulnerability (36 of 100).

Price category (Ref. 80766): Unknown.

Temera hardwickii Gray, 1831