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Elasmobranchii (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays)
Etymology: Dasyatis: Greek, dasys = rough, dense (Ref. 45335); colarensis: Named for its type locality, from the proximities of Colares Island, Marajó Bay, close to Colares I., district of Colares, Pará State, Brazil.

Environment / Climate / Range Ecology

Marine; pelagic-neritic; depth range 6 - ? m (Ref. 56441). Tropical, preferred ?

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Southwest Atlantic: Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 207 cm TL male/unsexed; (Ref. 56441)

Short description Morphology | Morphometrics

Diagnosis: Disc diamond-shaped (rhomboid). Snout elongated, preorbital distance 35.7-37.7% in DW. Lower lip outline with a dark, well-defined band. Shoulder region to base of tail with a row of small tubercles along the midline of disc, tubercles somewhat randomly distributed. Posterior margin of the pectoral fins uniformly rounded; of the triangular-shaped pelvic fins, almost straight or slightly sinuous, with its tips exceeding posterior margin of disc. Dorsal caudal keel absent in the holotype, vestigial in the 2 paratypes (Ref. 56441).

Minimum depth from Ref. 58018.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

Santos, H.R.S., U.L. Gomes and P. Charvet-Almeida, 2004. A new species of whiptail stingray of the genus Dasyatis Rafinesque, 1810 from the Southwestern Atlantic ocean (Chondrichthyes: Myliobatiformes: Dasyatidae). Zootaxa 492:1-12. (Ref. 56441)

IUCN Red List Status (Ref. 109396)

Vulnerable (VU) (A3d)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01259 (0.00536 - 0.02954), b=3.03 (2.82 - 3.24), based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 3.7 ±0.2 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): Very Low, minimum population doubling time more than 14 years ().

Vulnerability (Ref. 59153): High to very high vulnerability (72 of 100) .

Entered by Capuli, Estelita Emily

Modified by Kesner-Reyes, Kathleen

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Dasyatis colarensis Santos, Gomes & Charvet-Almeida, 2004