Elasmobranquios (tiburones y rayas) (sharks and rays) >
Myliobatiformes (Stingrays) >
Dasyatidae (Stingrays) > Dasyatinae
Etymology: Pteroplatytrygon: Greek, pteron = wing, fin + Greek,platys = flat + Greek, trygon = a sting ray (Ref. 45335); violacea: From the Latin 'viola' meaning violet.
More on author: Bonaparte.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino pelagic-oceanic; rango de profundidad 1 - 381 m (Ref. 58302), usually 1 - 100 m (Ref. 55209). Subtropical; 52°N - 50°S, 180°W - 180°E (Ref. 55209)
Probably cosmopolitan in tropical and subtropical seas. Eastern Pacific: Reported from Vancouver (Ref. 11980), from California (USA), Baja California (Mexico) to Chile, and the Galapagos Is. (Ref. 9068). Western Atlantic (Ref. 7251). Eastern Atlantic: Southeastern coasts of the Mediterranean and off Sicily; Reported from Cape Verde (Ref. 34514). Indian Ocean.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm 45.0, range 40 - 50 cm
Max length : 96.0 cm WD macho / no sexado; (Ref. 48844); common length : 80.0 cm WD macho / no sexado; (Ref. 9254)
A thick, dark stingray with a broadly rounded snout and an angular pectoral disc; tail less than twice body length with a long lower caudal finfold ending far in front of tail tip, but with no upper finfold; disc without thorns; usually 1 extremely long sting on tail; eyes do not protrude (Ref. 5578). Uniformly violet, purple, or dark blue-green dorsally and ventrally (Ref. 3263). No prominent markings (Ref. 3263).
Body shape (shape guide): other.
Found in open, tropical and warm temperate waters usually in the first 100 m. Possibly the only totally pelagic member of the family (Ref. 6871). Feeds on coelenterates (including medusae), squid, decapod crustaceans, and fish. Ovoviviparous (Ref. 50449). Venomous spine on tail. Common catch of the pelagic tuna (and shark) longline and gillnet fisheries (drift, Ref. 75025) operating throughout the region (Ref. 58048); also by purse-seine and bottom trawls (Ref. 75025). Utilized for its meat and sometimes cartilage (Ref.58048). Total length 110 TL (80 cm WD) (Ref. 9254).
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). With 2 (Ref.58048) to 9 young born at 15-25 cm WD (Ref. 26346); after a gestation period of 4 months (Ref.58048).
Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Usos humanos
Pesquerías: comercial; pesca deportiva: si
Herramientas
Informes especiales
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Estimaciones basadas en modelos
Temperatura preferida (Referencia
123201): 12 - 28.6, mean 24.8 °C (based on 5148 cells).
Índice de diversidad filogenética (Referencia
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00189 - 0.01058), b=3.12 (2.92 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 4.4 ±0.54 se; based on food items.
Resiliencia (Referencia
120179): Muy bajo, población duplicada en un tiempo mínimo superior a 14 años (K=0.18 (captivity); Fec=1-9 (could probably have 2 litters per year)).
Vulnerabilidad pesquera (Ref.
59153): High vulnerability (63 of 100).
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Nutrientes (Ref.
124155): Calcium = 19.5 [4.9, 91.5] mg/100g; Iron = 0.96 [0.25, 2.71] mg/100g; Protein = 22.8 [19.9, 25.8] %; Omega3 = 0.354 [0.107, 1.041] g/100g; Selenium = 20.5 [5.9, 52.0] μg/100g; VitaminA = 15.6 [5.9, 43.5] μg/100g; Zinc = 0.475 [0.235, 0.879] mg/100g (wet weight);