Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Urogymninae
Etymology: More on authors: Compagno & Roberts.

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

Freshwater; brackish; benthopelagic. Tropical

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

Asia: Indonesia, Malaysia and Thailand (Chao Phraya, Mekong and Tapi Rivers).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 60.0 cm WD male/unsexed; (Ref. 7050)

Short description Identification keys | Morphology | Morphometrics

Narrow white marginal band around disk; white spot anterior to spiracle and posterior to eye; ventral surface plain; spiral valve with 11-14 turns (Ref. 12693).

Inhabits sandy bottoms in estuaries and rivers (Ref. 12693). Feeds on bottom-dwelling crustaceans and shellfish. Breeds in fresh water (Ref. 32457). Ovoviviparous (Ref. 50449). Wounds caused by the dorsal spines are extremely painful and can be fatal. Sold fresh for human consumption (Ref. 32457). Total length maybe greater than 200 cm.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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). Distinct pairing with embrace (Ref. 205).

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

Kottelat, M., A.J. Whitten, S.N. Kartikasari and S. Wirjoatmodjo, 1993. Freshwater fishes of Western Indonesia and Sulawesi. Periplus Editions, Hong Kong. 221 p. (Ref. 7050)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (A2cd); Date assessed: 25 January 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Traumatogenic

Human uses

Fisheries: minor commercial; aquarium: commercial

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
Ecology

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Length-weight rel.
Length-length rel.
Length-frequencies
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Life cycle
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Egg(s)
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Distribution
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Anatomy
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Physiology
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Visual pigment(s)
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Genetics
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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [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 ±0.37 se; based on food items.

Resilience (Ref. 120179): Very Low, minimum population doubling time more than 14 years (Assuming Fec<10).

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

Price category (Ref. 80766): Low.

Fluvitrygon signifer (Compagno & Roberts, 1982)