Spotted Eagle Ray
Aetobatus narinari
    Ecological Descriptors
Habitat Size Diet Behaviour Sex 
Dem, Pel Across wing tips to 2m Mol (Cru, Wor, Pisc) I, Sh F
Fish dorso-ventrally flattened, with greatly enlarged pectoral fins, which give them a disc-like shape. Back dark, with numerous
white spots and circular markings. Underside white. Head pronounced with a flattened, tapering snout. Mouth on the underside of the head. Tail long and thin, with one to five venomous spines at the base.

Coastal and semipelagic over the continental shelf from the surface to 60 m depth. Sometimes enters lagoons and often associated with coral-reef ecosystems. Solitary or found in large schools of up to several hundred individuals.  Most of their time is spent swimming, cruising walls and sandy areas. Dig in the sand for molluscs, upon which they feed. Overall diet consists of a wide variety of benthic species including polychaetes, bivalve and gastropod molluscs, cephalopods, crustaceans and teleost fishes

Life Cycle:
Non-placental vivipary, but with  little information available on reproductive biology although known to have low fecundity, bearing 1 to 4 pups/litter.  Gestation has been reported at 12 months and reproductive periodicity may not be annual. These factors combine for limited reproductive output. Reported to reach sexual maturity after 4 to 6 years.
Spotted Eagle Ray
(C) JE Randall
Spotted Eagle Ray