Klassifizierung / Names
Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (Haie und Rochen) (sharks and rays) >
Myliobatiformes (Stingrays) >
Dasyatidae (Stingrays) > Urogymninae
Eponymy: Dr James Ramsey Tosh (1872–1917) was a Scottish marine biologist and inland waterway engineer who was employed by the government of Queensland as a fisheries expert (1900– 1903). [...] (Ref. 128868), visit book page.
More on author: Whitley.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser demersal; tiefenbereich 10 - 140 m (Ref. 6871). Deep-water; 8°S - 30°S, 130°E - 155°E (Ref. 114953)
Western Pacific: Australia and Papua New Guinea. This species has been misidentified by most ichthyologists as a color form of Himantura uarnak (Ref. 6871). Also Ref. 114953.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 86.0 cm WD Männchen/unbestimmt; (Ref. 58048)
Demersal on soft bottoms on the continental shelf at depths of 10-140m (Ref.58048). Juveniles (20-22 cm WD) are free swimming. Feeds on prawns, small fishes and crustaceans (Ref. 9840). Ovoviviparous (Ref. 50449). Common by-catch of bottom trawl and beach seine fisheries in the Arafura Sea. Utilized for its meat, skin (high value) and cartilage (Ref.58048).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
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). Born at 20-22 cm WD (Ref.58048).
Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01023 (0.00486 - 0.02155), b=3.06 (2.86 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
3.6 ±0.3 se; based on diet studies. |
Widerstandsfähigkeit (Ref. 120179) |
niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Assuming fecundity<100). |
Anfälligkeit der Fischerei (Ref. 59153) |
High to very high vulnerability (67 of 100). 🛈 |
Preiskategorie (Ref. 80766) |
Low.
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