Elasmobranchii (sharks and rays) > Myliobatiformes
(Stingrays) > Myliobatidae
(Eagle and manta rays)
Etymology: Aetomylaeus: Greek, aetos = eagle + Greek, mylio = mill, grinder (Ref. 45335). More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 1 - 110 m (Ref. 9862). Tropical; 28°N - 24°S, 32°E - 155°E
Indo-West Pacific: scattered localities, from southern Mozambique to the western Pacific.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 170 - ? cm
Max length : 240 cm WD male/unsexed; (Ref. 58048)
Found in muddy bays and banks and on coral reefs from close inshore to 110 m depth (Ref. 9862). Ovoviviparous (Ref. 50449). Caught in bottom trawls, gillnets, seines, and fish traps (Ref. 9862, Ref.58048). Utilized for its meat and cartilage (possibly used as "filler" in shark fin soups as with other large eagle rays) (Ref.58048).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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).
Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: minor commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 24.9 - 29.1, mean 28.1 °C (based on 2154 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00118 - 0.01224), b=3.09 (2.83 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153
): High vulnerability (58 of 100) .