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

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

Environment / Climate / Range Ecology

Marine; bathydemersal; depth range 600 - 2172 m (Ref. 5951), usually 1300 - 1400 m (Ref. 11284). Deep-water, preferred ?; 55°N - 16°N

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

Eastern Atlantic: Denmark-Strait, Rockall Trough along Ireland, northern Bay of Biscay and Rio de Oro in Western Sahara, but possibly throughout the area in very deep water. Western Atlantic: north of 45°N (Ref. 11284).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 90.0 cm TL male/unsexed; (Ref. 4426)

Short description Morphology | Morphometrics

Lower surface of the discus dark brown, darker in upper surface. Without definite markings, outer edges of pectoral and pelvic fins shading to darker (Ref. 6902).

Found on deeper continental slopes and probably abyssal plains, mainly deeper than 1,400 m (Ref. 3167). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).

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

Oviparous (Ref. 3167). Paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

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. 115185)

Least Concern (LC)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00309 (0.00140 - 0.00684), b=3.20 (3.02 - 3.38), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 3.7 ±0.6 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 (55 of 100) .

Entered by Binohlan, Crispina B.

Modified by Sampang-Reyes, Arlene G.

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