Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien rifbewoner; diepte 100 - ? m (Ref. 114953). Subtropical; 37°N - 20°N, 114°E - 139°E (Ref. 114953)
Northwest Pacific: southern Japan to the South China Sea near Hong Kong, including Taiwan.
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?, range 35 - ? cm
Max length : 40.0 cm TL mannelijk / geslacht onbekend; (Ref. 12951)
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).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Ovoviviparous. Up to 5 in a litter (Ref. 12951).
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gebruik door de mens
Visserij: van minder commercieel belang
Tools
Speciale rapporten
Download XML
Internetbronnen
Schattingen op basis van modellen
Gewenste temperatuur (Ref.
123201): 18.5 - 28.9, mean 26.8 °C (based on 559 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 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).
Trofisch niveau (Ref.
69278): 3.5 ±0.37 se; based on food items.
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Assuming fecundity<100).
Kwetsbaarheid van de visserij (Ref.
59153): Low to moderate vulnerability (30 of 100).
🛈
