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Raja brachyura Lafont, 1873
BLONDE RAY
Life   Vertebrata   Fish   Rajidae   Raja


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

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Raja brachyura Lafont , 1871

Blonde ray Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Raja brachyura   AquaMaps   Data sources: GBIF OBIS
Upload your photos  and  videos
Pictures | Google image Image of Raja brachyura (Blonde ray) Raja brachyura
Picture by Bergmann, M.

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: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335 ) .

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

Marine; demersal; depth range 10 - 380 m (Ref. 6808 ).   Temperate; 60°N - 21°N, 18°W - 24°E

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

Eastern Atlantic: Shetland Islands to Morocco, Rio de Oro (Western Sahara), and Madeira.

Length at first maturity / Size / Weight / Age

Maturity: L m 90.2 , range 60 - ? cm
Max length : 120 cm TL male/unsexed; (Ref. 41333 ); 125.0 cm TL (female); max. published weight: 14.3 kg (Ref. 40637 )

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Anal spines : 0; Anal soft rays : 0. Upper surface wholly prickly, except in juveniles; underside only prickly along front margins of disc; orbital thorns separate; a regular median row of 40-45 thorns in juveniles and adult females, interrupted on back in males; 60-90 tooth rows; upper surface ochre, with numerous small dark spots to margins of disc, underside white (Ref. 3167 ).

Biology     Glossary (e.g. epibenthic)

Found on sand and sand-rock bottoms (Ref. 6808 ). Feed on all kinds of benthic animals (Ref. 3167 ). 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 10.0-14.3 cm long and 5.8-9.0 cm wide (Ref. 41250 ). About 40-90 eggs are laid per individual every year (Ref. 41250 ).

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449 ). Spawning mainly from February to August with at least 30 egg-cases laid (Ref. 3167 ). 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. 120744 )

  Near Threatened (NT)  ; Date assessed: 01 December 2008

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial; gamefish: yes FAO(fisheries: production ; publication : search ) | FishSource | Sea Around Us

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
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Recruitment
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References
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Aquaculture profile
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Processing
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Tools

E-book | Field guide | Identification keys | 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 | DORIS | ECOTOX | Faunafri | Fishtrace | GenBank( genome , nucleotide ) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 7.1 - 16.2, mean 10.3 (based on 462 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00224 (0.00144 - 0.00348), b=3.27 (3.15 - 3.39), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  3.8   ±0.61 se; Based on food items. Resilience (Ref. 69278 ):  Low, minimum population doubling time 4.5 - 14 years (K=0.12-0.19; tmax=15; Fec=40). Prior r = 0.20, 95% CL = 0.11 - 0.36, Based on 1 stock assessment. Vulnerability (Ref. 59153 ):  High to very high vulnerability (65 of 100) . Price category (Ref. 80766 ):   Medium .

Entered by Luna, Susan M. Modified by Bailly, Nicolas Fish Forum
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