Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranquios (tiburones y rayas) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Rajella: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).

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

marino batidemersal; rango de profundidad 102 - 1098 m (Ref. 106604). Deep-water; 27°S - 40°S

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Southeast Atlantic: Lüderitz, Namibia to off Cape Agulhas, South Africa.

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 65.1 cm TL macho / no sexado; (Ref. 106604)

Short description Claves de identificación | Morfología | Morfometría

Small skate with a very short, obtusely pointed snout, large, close-set, bulging eyes and a thick disc; tail thick and much longer than body; conspicuous light thorns make disc and tail very rough (Ref. 5578). Light grey to brownish above, with or without darker spots; young with distinctive white-barred pattern; underside white (Ref. 5578).

Found on the upper slope (Ref. 5578). Feed on mysids, lightfishes, and polychaetes (Ref. 5578). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Caught by hake trawlers (Ref. 5578).

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

Main reference Upload your references | Referencias | Coordinador : McEachran, John | Colaboradores

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. 130435)

Least Concern (LC) ; Date assessed: 24 April 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
componentes alimenticios
Diet compositions
Food consumptions
Food rations
Despredadores

Ecology
Ecología

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Life cycle
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Maturities
Fecundities
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Egg(s)
Egg developments
Larva
Dinámica larvaria

Distribution
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BRUVS - Videos

Anatomy
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Physiology
Body compositions
Nutrients
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Tipo de natación
Swimming speeds
Visual pigment(s)
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Diseases / Parasites
Toxicities (LC50s)

Genetics
Genética
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Heritabilities

Human related
Aquaculture systems
Perfiles de acuicultura
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Stamps, coins, misc.

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Taxonomy
Nombres comunes
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References
Referencias

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Special reports

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

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Summary page | Datos específicos | Nombres comunes | Photos

Fuentes de Internet

Estimates based on models

Preferred temperature (Ref. 123201): 6.5 - 13.8, mean 8 °C (based on 11 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00302 (0.00173 - 0.00526), b=3.24 (3.09 - 3.39), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Nivel trófico (Ref. 69278): 3.6 ±0.53 se; based on food items.

Resiliencia (Ref. 120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (46 of 100).

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Rajella caudaspinosa (von Bonde & Swart, 1923)