Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (sharks and rays) > Rajiformes (Skates and rays) > Gurgesiellidae (Pygmy skates)
Etymology: Cruriraja: Latin, crur, cruris = pertaining to a leg + Latin, raja = a ray (Raja sp) (Ref. 45335).

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

seewasser bathydemersal; tiefenbereich 512 - 778 m (Ref. 26282). Deep-water

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

Western Central Atlantic: Florida, USA to northern Cuba.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Large width interspace between first and second dorsal fins. Upper surface pale brown disc without definite markings. Lower surface whitish or yellowish. Tail pale dusky below (Ref. 6902).

Deep water species (Ref. 6902). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).

Hauptreferenz Upload your references | Referenzen | Koordinator | 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. 130435)

nicht bedroht (LC) ; Date assessed: 23 June 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Preferred temperature (Ref. 123201): 7.4 - 13.7, mean 9.5 °C (based on 24 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00661 (0.00225 - 0.01943), b=2.95 (2.71 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.6 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (35 of 100).

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