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Raja brachyura Lafont, 1871

Blonde ray
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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
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Image of Raja brachyura (Blonde ray)
Raja brachyura
Picture by Bergmann, M.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (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 Ökologie

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

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

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

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm 90.2, range 60 - ? cm
Max length : 120 cm TL Männchen/unbestimmt; (Ref. 41333); 125.0 cm TL (female); max. veröff. Gewicht: 14.3 kg (Ref. 40637)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 0; Afterflossenstacheln 0; Afterflossenweichstrahlen: 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).

Biologie     Fachlexikon (Englisch) (z.B. 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 Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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).

Hauptreferenz Upload your references | Referenzen | Koordinator : McEachran, John | Partner

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 Rote Liste Status (Ref. 120744)

  Gefährdung zunehmend (NT) ; Date assessed: 01 December 2008

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: weniger kommerziell; Sportfisch: ja
FAO(Fischereien: production; publication : search) | FishSource | Sea Around Us

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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):  PD50 = 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.
Widerstandsfähigkeit (Ref. 69278):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (K=0.12-0.19; tmax=15; Fec=40).
Prior r = 0.20, 95% CL = 0.11 - 0.36, Based on 1 stock assessment.
Verwundbarkeit (Ref. 59153):  High to very high vulnerability (65 of 100) .
Preiskategorie (Ref. 80766):   Medium.