Elasmobranchii (sharks and rays) > Myliobatiformes
(Stingrays) > Dasyatidae
Etymology: Dasyatis: Greek, dasys = rough, dense (Ref. 45335).
Environment / Climate / Range
Marine; brackish; demersal; depth range ? - 60 m (Ref. 4438). Tropical; 21°N - 17°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm WD male/unsexed; (Ref. 3170); common length : 60.0 cm WD male/unsexed; (Ref. 26999); max. published weight: 17.0 kg (Ref. 7397)
soft rays: 0. Disc oval, moderately flat, its medial lobe broad-based and moderately exserted, its anterolateral margin somewhat concave; denticles on dorsal surface of disc smooth, restricted to middle portion; snout moderately long, broadly pointed; pearl spines always present and very large (Ref. 26277). Total tooth rows 24-32/28-36; total pectoral radials 129-136 (Ref. 7367). Disc and pelvic fins gray-brown above, without spots or prominent markings, uniformly pale or whitish below (Ref. 26277).
Eastern Atlantic: Mauritania to Angola.
Common in marine and estuarine habitats (Ref. 3497). Feeds on shrimps, crabs, bivalves and annelids (Ref. 28587). Ovoviviparous (Ref. 50449).
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). Distinct pairing with embrace (Ref. 205).
Capapé, C. and M. Desoutter, 1990. Dasyatidae. p. 59-63. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4438)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00492 - 0.02938), b=3.03 (2.81 - 3.25), based on LWR estimates for this (Sub)Family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.50 se; Based on food items.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100).
Vulnerability (Ref. 59153
): High to very high vulnerability (67 of 100) .