Urobatis tumbesensis (Chirichigno F. and McEachran, 1979)
TUMBES ROUND STINGRAY
  Fish   Urolophidae   Urobatis

Urobatis tumbesensis
© Copyright Photographer/SFTEP, 2002 · 0
Urobatis tumbesensis

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Urobatis tumbesensis
© Copyright Photographer/SFTEP, 2002 · 0
Urobatis tumbesensis
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Overview
Main identification features
  • row thorns - disc and tail
  • top: bright, wiggly lines and spots
Disc slightly wider than long; disc, tail and top of tail fin uniformly covered with denticles that have star-shaped bases; a series of thorns on star-shaped bases along midline of disc and tail; underside smooth; tail length is ~85% of disc length; no sheath on top of tail for housing tail spine.

Top surface and tail fin covered with a bright pattern of coarse light brown and dark wriggly lines and eye-sized spots; lower surface pale with a reticulated pattern of pale spots on a dark background around the sides and rear of the disc, and pelvic fins.

Size: reaches at least 41 cm.

Habitat: lives on muddy bottoms.

Collected in <20 m depth.

Central Ecuador to northern Peru.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ).
Depth Range Max: 20 m.
Depth Range Min: 1 m.
Diet: octopus/squid/cuttlefish; mobile benthic crustacea (shrimps/crabs); bony fishes; mobile benthic worms.
Eastern Pacific Range: Northern limit=-1; Southern limit=-7; Western limit=-82; Eastern limit=-81; Latitudinal range=6; Longitudinal range=1.
Egg Type: Live birth; No pelagic larva; No pelagic phase.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Estuary; Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 41 cm.
Regional Endemism: Continent only; Continent; TEP endemic; Continental TEP endemic; Panamic province endemic; All species.
Residency: Resident.
Salinity: Brackish; Non Marine.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Chirchigno , N. and McEachran, J. D., 1979., Urolophus tumbesensis, a new stingray from the coast of Peru (Batoidea: Urolophidae)., Copeia, 1979:709-713.
  • Compagno, L.J.V., 1999., Checklist of living elasmobranchs. In Hamlett W.C. (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes., The John Hopkins University Press:471-498.
  • Jimenez-Prado, P., BÚarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Urobatis tumbesensis (Chirichigno , F. & McEachran , 1979)

Tumbes round stingray Upload your photos  and  videos
Pictures | Google image Image of Urobatis tumbesensis (Tumbes round stingray) Urobatis tumbesensis
Picture by B├ęarez, P.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Myliobatiformes (Stingrays) > Urotrygonidae (American round stingrays)
Etymology: Urobatis: Greek,oura = tail + Greek, batis, batidos = a ray (Raja sp.) (Ref. 45335 ) .

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

Marine; brackish; demersal.   Tropical

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

Eastern Central Pacific: from northern Peru to Colombia.

Size / Weight / Age

Maturity: L m   ?   range ? - 30 cm
Max length : 34.5 cm TL male/unsexed; (Ref. 111131 )

Biology     Glossary (e.g. epibenthic)

Occurs in coastal shallow water in estuaries, mangrove swamps and to at least 20 m depth (Ref. 114953 ).

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

Main reference Upload your references | References | Coordinator | Collaborators

Compagno, L.J.V. , 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766 )

IUCN Red List Status (Ref. 120744 )

  Data deficient (DD)  ; Date assessed: 01 March 2007

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.01318 (0.00601 - 0.02891), b=3.13 (2.94 - 3.32), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245 ). Trophic Level (Ref. 69278 ):  3.2   ±0.3 se; Based on size and trophs of closest relatives Resilience (Ref. 69278 ):  Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100). Vulnerability (Ref. 59153 ):  Low vulnerability (18 of 100) .

Entered by Garilao, Cristina V. Modified by Capuli, Estelita Emily Fish Forum
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