Klassifizierung / Names
Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (Haie und Rochen) (sharks and rays) >
Myliobatiformes (Stingrays) >
Gymnuridae (Butterfly rays)
Etymology: Gymnura: Greek, gymnos = naked + Greek, oura = tail (Ref. 45335). More on author: Shaw.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; seewasser demersal. Tropical
Indo-Pacific: Persian Gulf (Ref. 68964), Red Sea to French Polynesia, north to Japan. Also reported from Persian Gulf (Ref. 96002).
Length at first maturity / Size / Gewicht / Alter
Maturity: Lm 48.0  range ? - ? cm
Max length : 250 cm WD Männchen/unbestimmt; (Ref. 30573)
Found on sandy bottoms of shallow inshore waters and offshore banks (Ref. 30573). Ovoviviparous (Ref. 50449). Feeds mainly on crustaceans and clams (Ref. 68964). Caught often in demersal trawls, and occasionally by trammel net. Utilized for its meat, but of limited value due to its typically small size (Ref.58048).
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205). Gives birth to litters of up to 7 pups; born at 24-26 cm WD (Ref. 58048).
Sommer, C., W. Schneider and J.-M. Poutiers, 1996. FAO species identification field guide for fishery purposes. The living marine resources of Somalia. FAO, Rome. 376 p. (Ref. 30573)
IUCN Rote Liste Status (Ref. 123251)
CITES (Ref. 123416)
Not Evaluated
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: kommerziell
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Estimates based on models
Preferred temperature (Ref.
115969): 25.2 - 29.2, mean 28.5 °C (based on 2718 cells).
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00475 - 0.01329), b=3.00 (2.85 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.6 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Fec=1-6).
Verwundbarkeit (Ref.
59153): Moderate to high vulnerability (51 of 100) .