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Elasmobranchii (tubarões e raias) (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Dasyatinae
Eponymy: Thomas Say (1787–1834) was a self-taught American naturalist whose primary interest was entomology. [...] (Ref. 128868), visit book page.
More on author: Lesueur.

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

marinhas; estuarina demersal; intervalo de profundidade 1 - 10 m (Ref. 55208), usually 1 - ? m (Ref. 55208). Subtropical; 45°N - 28°S, 95°W - 33°W (Ref. 55208)

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Western Atlantic: New Jersey (rarely in Massachusetts), USA and northern Gulf of Mexico to Argentina; widespread in the West Indies. Throughout Antilles (Ref. 26938).

Length at first maturity / Tamanho / Peso / Idade

Maturity: L_m 55.0, range 50 - 60 cm
Max length : 104 cm WD macho/indeterminado; (Ref. 49746)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Moderate size, with a short blunt snout. Disk has rounded corners, few tubercles and spines along midline (Ref. 26938). Well developed fold on the upper surface and lower surface of tail. Yellowish or light brown above. Lower surface whitish or pure white (Ref. 6902).

Inhabits coastal waters (Ref. 7251). Generally found near shore, to depths of 10 m. Both adults and juveniles frequent estuaries and surf zones (Ref. 27549). Bottom feeder with fish, clams, worms and shrimps. It causes a number of injuries to bathers and waders (Ref. 26938). Ovoviviparous (Ref. 50449). Litters of 2-4 pups; gestation 10-11 months, including a period of embryonic diapause (Ref. 114953).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

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).

Referência principal Upload your references | Referências | Coordenador : McEachran, John | Colaboradores

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)

Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-1)

Quase ameaçada (NT) (A2bd); Date assessed: 21 June 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Traumatogenic (Ref. 4716)

Utilização humana

Peixe desportivo: sim

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Estimates based on models

Preferred temperature (Ref. 123201): 23.1 - 28.1, mean 27.1 °C (based on 760 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00468 (0.00195 - 0.01123), b=3.12 (2.92 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Nível Trófico (Ref. 69278): 3.7 ±0.2 se; based on diet studies.

Resiliência (Ref. 120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Nutrients (Ref. 124155): Calcium = 26.4 [3.6, 122.6] mg/100g; Iron = 0.744 [0.197, 2.068] mg/100g; Protein = 23.9 [21.1, 26.5] %; Omega3 = 0.23 [0.06, 0.69] g/100g; Selenium = 12.5 [3.8, 37.8] μg/100g; VitaminA = 9.03 [3.46, 23.49] μg/100g; Zinc = 0.738 [0.357, 1.351] mg/100g (wet weight);

Hypanus say (Lesueur, 1817)