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Elasmobranchii (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Urogymninae
Etymology: Urogymnus: Greek, oura = tail + Greek, gymnos = naked (Ref. 45335); dalyensis: Named for the major Northern Australian river where the first confirmed species was first collected (Daly River, NT)..
More on authors: Last & Manjaji-Matsumoto.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; freshwater; brackish; benthopelagic; depth range 1 - 4 m (Ref. 76960). Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Oceania: Australia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 124 cm WD male/unsexed; (Ref. 76960)

This benthic species is found mainly in rivers, estuaries and low salinity coastal environments. It feeds mainly on small fishes and prawns, which it actively pursues, even beaching itself to trap prey (Ref. 114953).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

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

Last, P.R. and B.M. Manjaji-Matsumoto, 2008. Himantura dalyensis sp. nov., a new estuarine whipray (Myliobatoidei: Dasyatidae) from Northern Australia. In Last, P.R., White, W.T. & Pogonoski, J.J. (eds.): Descriptions of New Australian Chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22. (Ref. 76960)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 18 May 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
Ecology

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Length-weight rel.
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Life cycle
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Anatomy
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Visual pigment(s)
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00832 (0.00366 - 0.01891), b=3.10 (2.90 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

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Urogymnus dalyensis (Last & Manjaji-Matsumoto, 2008)