Elasmobranchi (squali e razze) (sharks and rays) >
Myliobatiformes (Stingrays) >
Myliobatidae (Eagle and manta rays)
Etymology: Myliobatis: Greek, mylo = mill + Greek, + Greek, batis,-idos = a ray (Raja sp.) (Ref. 45335).
Eponymy: Christophe/Chrétien-Paulin de la Poix Chevalier de Fréminville (1787–1848) was a French naval officer and naturalist. [...] (Ref. 128868), visit book page.
More on author: Lesueur.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino; salmastro benthopelagico; distribuzione batimetrica 0 - 100 m (Ref. 57911), usually 1 - 10 m. Subtropical; 43°N - 42°S, 97°W - 33°W
Western Atlantic: continental waters from Cape Cod to southeastern Florida (?) in the USA; also southern Brazil to Argentina (Ref. 58839). Reported (but not known for certain) from Gulf of Mexico, Florida and Caribbean islands, and northern South America. Often confused with Myliobatis goodei (Ref. 3173).
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 65.0, range 60 - 70 cm
Max length : 129 cm WD maschio/sesso non determinato; (Ref. 49746); common length : 70.0 cm WD maschio/sesso non determinato; (Ref. 5217)
Disk broad with long sharply pointed wings and projecting snout. Tail very long, Few middorsal spines on disk in adults (Ref. 7251). Greyish, reddish chocolate or dusky brown above. Lower surface either pure white or whitish. Teeth green (Ref. 6902).
Body shape (shape guide): other.
Found frequently in coastal waters to 10 m depth, mainly in shallow estuaries. Capable of traveling long distances, occasionally leaps out of the water. Swims in midwater. Cruises slowly over the bottom, rooting out bivalves with its beak and wings when feeding (Ref. 7251). Ovoviviparous (Ref. 50449).
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).
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: scarso interesse commerciale
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 14.2 - 28.1, mean 24.2 °C (based on 594 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00124 - 0.01219), b=3.08 (2.83 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.4 ±0.0 se; based on diet studies.
Resilienza (Fonte Biblio.
120179): Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (Fec=4-8).
Vulnerabilità della pesca (Ref.
59153): Very high vulnerability (83 of 100).
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Nutrienti (Ref.
124155): Calcium = 17.7 [3.0, 78.8] mg/100g; Iron = 0.619 [0.159, 1.673] mg/100g; Protein = 21.5 [16.5, 26.6] %; Omega3 = 0.259 [0.074, 0.765] g/100g; Selenium = 23.1 [6.7, 60.5] μg/100g; VitaminA = 10.5 [4.4, 24.4] μg/100g; Zinc = 0.737 [0.363, 1.334] mg/100g (wet weight);