Urobatis maculatus Garman, 1913
SPOTTED ROUND RAY
  Fish   Urolophidae   Urobatis

Urobatis maculatus
© Copyright Gerald Allen, 2006 · 0
Urobatis maculatus

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Overview
Main identification features
  • dark blotches in center
Spotted roundray, Spotted roundstingray, Cortez roundstingray

Disc rounded, but with front-side margins nearly straight; snout bluntly angular, tail equal to or less than one-half total length; tooth rows in upper jaw 35-37; tail fin rounded.

Generally brown or brownish grey with irregular, variable sized, relatively widely spaced dark brown to blackish blotches and spots.

Size: grows to about 42 cm length (disc width 26 cm).

Habitat: frequently sighted on rubble bottoms.

Depth: 1-30 m.

Southern Baja and the Gulf of California.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap).
Depth Range Max: 30 m.
Depth Range Min: 1 m.
Diet: mobile benthic crustacea (shrimps/crabs); mobile benthic worms.
Eastern Pacific Range: Northern limit=32; Southern limit=24; Western limit=-115; Eastern limit=-108; Latitudinal range=8; Longitudinal range=7.
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: Sand & gravel; Soft bottom only; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Macroalgae; Reef associated (reef + edges-water column & soft bottom).
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 42 cm.
Regional Endemism: Continent; Continent only; TEP endemic; Continental TEP endemic; Cortez province endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Beebe , W. and Tee-Van, J., 1941., Eastern Pacific expeditions of the New York Zoological Society. XXVIII. Fishes from the tropical eastern Pacific. (From Cedros Island, Lower California, South to the Galápagos Islands and northern Peru.) Part 3. Rays, mantas and chimaeras., Zoologica, 26(3):245-280.
  • Breder, C.M. Jr., 1928., Scientific results of the second oceanographic expedition of the "Pawnee" 1926. Elasmobranchii from Panama to Lower California., Bull. Bingham Oceanogr. Collect. Yale Univ., 2(1):1-13.
  • 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.
  • De la Cruz , J. , Galvan , F. , Abitia , L. A. , Rodriguez , J. and Gutierrez, F. J., 1994., Lista sistematica de los peces marinos de Bahia Magdalena, Baja California Sur (Mexico). Systematic List of marine fishes from Bahia Magdalena, Baja California Sur (Mexico)., Ciencias Marinas, 20:17-31.
  • Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional.
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200.
  • Galván-Magaña, F., Gutiérrez-Sánchez, F., Abitia-Cárdenas, L.A., Rodríguez-Romero, J., 2000., The distribution and affinities of the shore fishes of the Baja California Sur lagoons. In Aquatic Ecosystems of Mexico: Status and Scope. Eds. M. Manuwar, S.G. Lawrence, I.F. Manuwar & D.F. Malley. Ecovision World Monograph Series., Backhuys Publishers:383-398.
  • Garman, S., 1913., The Plagiostomia (Sharks, Skates and Rays)., Mem. Mus. Comp. Zool., 36:1-515.
  • Hildebrand, S.F., 1946., A descriptive catalog of the shore fishes of Peru., Bull. U.S. Nat. Mus., 189:1-530.
  • Lopez , M. I. and Bussing, W. A., 1998., Urotrygon cimar, a new eastern Pacific stingray (Pisces: Urolophidae)., Revista de Biologia Tropical, 46(6):271-277.
  • Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.
  • Pérez-Mellado, J., Findley, LL. F., 1985., Evaluación de la ictiofauna acompañante del camarón capturado en las costas de Sonora y norte de Sinaloa, México. In Yáñez-Arancibia, A. (Ed.) Recursos pesqueros potenciales de México: La pesca acompañante del camarón., Universidad Nacional Autónoma de México: Cap. 5:201-254.
  • Van der Heiden , A. M. and Findley, L. T., 1988., Lista de los peces marinos del sur de Sinaloa, México., Anales del Centro de Ciencias del Mar y Limnologia de la Universidad Autonoma Nacional de Mexico, 15:209-224.
  • Villareal-Cavazos, A., Reyes-Bonilla, H., Bermúdez-Almada, B. and Arizpe-Covarrubias, O., 2000., Los peces del arrecife de Cabo Pulmo, Golfo de California, México: Lista sistemática y aspectos de abundancia y biogeografía., Rev. Biol. Trop., 48:413-424.

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 maculatus Garman , 1913

Spotted round ray Upload your photos  and  videos
Pictures | Google image Image of Urobatis maculatus (Spotted round ray) Urobatis maculatus
Picture by Amezcua Linares, F.

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 ) .  More on author: Garman .

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

Marine; demersal; depth range 1 - 30 m (Ref. 96339 ).   Subtropical

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

Eastern Central Pacific: southern Baja California, Mexico and the Gulf of California.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 42.0 cm TL male/unsexed; (Ref. 9265 ); common length : 30.0 cm TL male/unsexed; (Ref. 9265 )

Biology     Glossary (e.g. epibenthic)

Found on shallow sand and mud bottoms, in sea grass beds, near rocky reefs, and in bays (Ref. 12951 ). Feeds on worms and amphipods during the day (Ref. 12951 ). Minimum depth from Ref. 58018.

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

Ovoviviparous.

Main reference Upload your references | References | Coordinator | Collaborators

McEachran, J.D. , 1995. Urolophidae. Rayas redondas. p. 786-792. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9265 )

IUCN Red List Status (Ref. 120744 )

  Data deficient (DD)  ; Date assessed: 31 January 2006

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Venomous (Ref. 9265 )




Human uses

FAO(Publication : search ) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes ( gen. , sp. ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank( genome , nucleotide ) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 22.3 - 26.9, mean 24 (based on 101 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00977 (0.00393 - 0.02432), b=3.08 (2.86 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  3.2   ±0.42 se; Based on food items. Resilience (Ref. 69278 ):  Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100). Vulnerability (Ref. 59153 ):  Low vulnerability (22 of 100) .

Entered by Froese, Rainer Modified by Valdestamon, Roxanne Rei Fish Forum
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