D I S C O V E R    L I F E   
Bee Hunt! Odonata Lepidoptera 
  HomeAll Living ThingsIDnature guidesGlobal mapperAlbumsLabelsSearch
  AboutNewsEventsResearchEducationProjectsStudy sitesHelp


Raja inornata Jordan and Gilbert, 1881
CALIFORNIA RAY
California Skate

Life   Vertebrata   Fish   Rajidae   Raja

Raja inornata
www.fao.org Copyright Michel Lamboeuf · 0
Raja inornata

Click on map for details about points.

Links

    We parsed the following live from the Web into this page. Such content is managed by its original site and not cached on Discover Life. Please send feedback and corrections directly to the source. See original regarding copyrights and terms of use.
  • FishBase

espa˝ol

Overview
Main identification features
  • snout pointed, bases concave
  • small denticles disc and tail
  • tail - 1 row thorns
  • mottled brown
  • pectoral: +/- ocellus
Rhomboidal disc of flattened, pointed head, body and pectoral fins; pelvic fins deeply notched, with 2 distinct lobes, rear one larger; large spiracles behind eyes; snout rigid, long, sharply pointed, with concave sides at its base; spines on rear borders only of ventral side; 2 small dorsal fins at rear of tail, no tail fin; spines on disc small, thin, not grooved, with oval bases; 36-40 rows of teeth on upper jaw; no spines around or just behind eyes; 1 row of spines along tail, extending onto pelvics and sometimes onto mid-back; top of disc with scattered small denticles.

Olive brown above, tan below; sometimes dark mottling, occasionally a dark ocelli or spots at base of each pectoral.

Size: 76 cm.

Habitat: soft bottoms, in bays.

Depth: 13-1600 m.

Canada to the western and NE 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: 1600 m.
Depth Range Min: 13 m.
Diet: mobile benthic worms; mobile benthic gastropods/bivalves; mobile benthic crustacea (shrimps/crabs); bony fishes; octopus/squid/cuttlefish.
Eastern Pacific Range: Northern limit=45; Southern limit=24; Western limit=-124; Eastern limit=-110; Latitudinal range=21; Longitudinal range=14.
Egg Type: Benthic; No pelagic larva; No pelagic phase.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: TEP non-endemic; East Pacific endemic; All species.
Habitat: Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only; Sand & gravel.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 76 cm.
Regional Endemism: Continent only; Continent; Temperate Eastern Pacific, primarily; Tropical Eastern Pacific (TEP) non-endemic; California province, primarily; All species.
Residency: Vagrant.
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 Galßpagos Islands and northern Peru.) Part 3. Rays, mantas and chimaeras., Zoologica, 26(3):245-280.
  • 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.
  • Eschmeyer , W. N. , Herald , E. S. and Hamman, H., 1983., A field guide to Pacific coast fishes of North America from the Gulf of Alaska to Baja California. Peterson Field Guide Ser. 28., Houghton Mifflin:336pp.
  • 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 versiˇn 1.0. Projecto de la Macrofauna del Golfo .á Derechos reservados de los autores y Conservaciˇn 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.
  • Hubbs, C.L., 1916., Notes on the Marine Fishes of California., Univ. Calif. Pubs. Zool., 16:153-169.
  • Jordan , D.S. and Evermann, B.W., 1896., The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Part I., Bull. U.S. Nat. Mus., 47:1-1240.
  • Jordan , D.S. and Gilbert, C.H., 1881., Note on Raia Inornata., Proc. U.S. Nat. Mus., 4:73-74.
  • 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.
  • McEachran , J.D.and Dunn, K.A., 1998., Phylogenetic analysis of skates, a morphologically conservative clade of Elasmobranchs (Chondrichthyes: Rajidae)., Copeia, 1998:271-290.

Acknowledgements

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


Supported by
go to Discover Life's Facebook group

Following modified from FishBase
   Top | See original

http://www.fishbase.org/Summary/speciesSummary.php?genusname=Raja&speciesname=inornata ---> http://www.fishbase.org/summary/Raja-inornata.html
http://www.fishbase.org/summary/Raja-inornata.html ---> https://www.fishbase.se/summary/Raja-inornata.html

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Beringraja inornata (Jordan & Gilbert , 1881)

California skate Upload your photos  and  videos
Pictures | Google image Image of Beringraja inornata (California skate) Beringraja inornata
Picture by FAO

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

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates) > Rajinae
Etymology: Beringraja: Named for the Bering Sea, though to be the origin of the two species in this genus. .  More on authors: Jordan & Gilbert .

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

Marine; demersal; depth range 13 - 1600 m (Ref. 96339 ).   Temperate; 49°N - 22°N, 127°W - 107°W (Ref. 114953 )

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

Eastern Pacific: Juan de Fuca Strait in Canada and USA to central Baja California, Mexico.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 76.0 cm TL male/unsexed; (Ref. 2850 ); common length : 45.0 cm TL male/unsexed; (Ref. 9261 )

Biology     Glossary (e.g. epibenthic)

Common in inshore waters from approximately 15 m and in shallow bays, sometimes in deep water (Ref. 2850 , Ref. 114953 ). Feeds on small benthic invertebrates, polychaete worms and shrimps (Ref. 114953 ). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205 ). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205 ). Egg capsules are 7.0-8.5 cm long and 6.5-7.6 cm wide (Ref. 41300 ). Males reaches maturity at ca. 47 cm TL, females at 52 cm TL; young hatch at ca. 15-23 cm TL (Ref. 114953 ).

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449 ). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205 ).

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

McEachran, J.D. and K.A. Dunn , 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314 )

IUCN Red List Status (Ref. 119314 )

  Least Concern (LC)  ; Date assessed: 27 September 2014

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial FAO(Publication : search ) | FishSource |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Spawning aggregation
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Collaborators
Pictures
Stamps, Coins Misc.
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

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 | SeaLifeBase | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 5.3 - 14.2, mean 7.5 (based on 42 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00275 (0.00122 - 0.00623), b=3.23 (3.04 - 3.42), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  4.2   ±0.7 se; Based on size and trophs of closest relatives Resilience (Ref. 69278 ):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100). Vulnerability (Ref. 59153 ):  Moderate to high vulnerability (52 of 100) . Price category (Ref. 80766 ):   Medium .

Entered by Froese, Rainer Modified by Abucay, Luisa Fish Forum
Comments & Corrections
Sign our Guest Book Back to Search Random Species Back to Top
Accessed through: Not available FishBase mirror site : Stockholm, Sweden Page last modified by : mrius-barile - 20 July 2016
Total processing time for the page : 0.2333 seconds

Updated: 2019-09-22 21:01:18 gmt
Discover Life | Top
© Designed by The Polistes Corporation