Elasmobranchii (Haie und Rochen) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser bathydemersal; tiefenbereich 243 - 1207 m (Ref. 127873). Deep-water; 6°S - 7°S
Southeast Pacific: Ecuador and Peru to southern Chile.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 110 cm TL Männchen/unbestimmt; (Ref. 127873)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
This species is distinguished by the following characters: the pectoral fin apices narrowly or abruptly rounded; the preorbital length times orbital length 2.41-3.40; preorbital length times interorbital length 1.02-1.17; interorbital space times orbit length 1.02-1.26; orbital length times spiracle length 1.16-1.78; pre-oral length times internarial length 1.24-1.34 (> 97.0 cm TL); tail thorns evenly spaced; dorsal disc surface and tail with finely textured denticles; teeth arranged in quincunx; predorsal tail vertebrae 64-71; pectoral-fin radial count 77-82 (Ref. 127873).
Cross section: flattened.
Holotype taken from a depth of 980 m (Ref. 26282). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
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: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00562 (0.00298 - 0.01063), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
4.0 ±0.7 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). |
Anfälligkeit der Fischerei (Ref. 59153) |
High to very high vulnerability (70 of 100). 🛈 |