Narke japonica, Japanese sleeper ray : fisheries

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Narke japonica (Temminck & Schlegel, 1850)

Japanese sleeper ray
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Narke japonica
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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 authors: Temminck & Schlegel.

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

; seewasser riff-verbunden; tiefenbereich 100 - ? m (Ref. 114953).   Subtropical; 37°N - 20°N, 114°E - 139°E (Ref. 114953)

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

Northwest Pacific: southern Japan to the South China Sea near Hong Kong, including Taiwan.

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm ?, range 35 - ? cm
Max length : 40.0 cm TL Männchen/unbestimmt; (Ref. 12951)

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Occurs inshore and offshore (Ref. 9913, 11230). Found on sand, often near rocky reefs (Ref. 12951). Biology little known (Ref. 9913), but locally common in Taiwan and Japan (Ref. 114953). Produces 4-6 pups per litter. Maturity size of males known at 25 cm TL. Not utilized for food. Capable of producing a moderate shock to humans (Ref. 114953). Does not do well in aquariums (Ref. 12951).

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

Ovoviviparous. Up to 5 in a litter (Ref. 12951).

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

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 Rote Liste Status (Ref. 123251)

  gefährdet, siehe IUCN Red List (VU) (A2d+3d+4d); Date assessed: 01 January 2007

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Other (Ref. 10011)





Nutzung durch Menschen

Fischereien: weniger kommerziell
FAO - Publication: search | FishSource |

Mehr Information

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Internet Quellen

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Nationale Datenbanken | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 18.5 - 28.9, mean 26.8 °C (based on 559 cells).
Phylogenetic diversity index (Ref. 82805):  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):  3.5   ±0.37 se; based on food items.
Widerstandsfähigkeit (Ref. 120179):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Assuming fecundity<100).
Verwundbarkeit (Ref. 59153):  Low vulnerability (21 of 100) .
Preiskategorie (Ref. 80766):   Unknown.