Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) >
Myliobatiformes (Stingrays) >
Mobulidae (Devilrays)
Etymology:
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά); εύρος βάθους 0 - 100 m (Ref. 106604). Tropical; 41°N - 40°S, 80°W - 29°W
Western Atlantic: New Jersey, USA (Ref. 7251) to Santos, Brazil (Ref. 26340) and Argentina (Ref. 58839). Eastern Atlantic: St. Paul's Rocks (Ref. 13121).
Μέγεθος / Βάρος / Age
Maturity: Lm ?  range ? - ? cm
Max length : 230 cm WD αρσενικό/απροσδιόριστο; (Ref. 126011); μεγ. δημοσιευμένο βάρος: 115.9 kg (Ref. 126011)
Cephalic fins smaller, tail longer without spine (Ref. 7251). Upper surface black (Ref. 6902).
Occurs in shallow coastal waters (Ref. 12951). Feeds mainly on planktonic crustaceans but may take small schooling fishes (Ref. 12951). Ovoviviparous (Ref. 50449). Found singly, in small groups, and in schools (Ref. 12951). Swimming at high speed and often leap high above the surface (Ref. 6902). Feeds mainly on planktonic crustaceans, but also on small schooling fishes (Ref. 114953). Meat used for food and a source of oil (Ref. 6902).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
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). Copulation has been observed to be in a venter to venter position while the pair swims at the surface. Mating reported to last 10 minutes. Litter number 1 (Ref. 12951).
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Ref.
123201): 13.7 - 27.7, mean 23.2 °C (based on 232 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.8 ±0.59 se; based on food items.
Ελαστικότητα (Ref.
120179): Πολύ χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού > 14 έτη (Fec=1).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (85 of 100).