Elasmobranchii (haaien en roggen) (sharks and rays) >
Rajiformes (Skates and rays) >
Gurgesiellidae (Pygmy skates)
Etymology: Fenestraja: Latin, fenestra, -ae = small hole or opening in a bone + Latin, raja, -ae = a fish, Raja sp. (Ref. 45335).
Eponymy: Pluto was the ruler of the underworld in classical mythology. [...] (Ref. 128868), visit book page.
More on author: Garman.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathydemersaal; diepte 290 - 750 m (Ref. 28767). Deep-water
Western Central Atlantic: North Carolina, USA to the Gulf of Mexico.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 25.3 cm TL (female)
First and dorsal confluent. Thorns on anterior part of tail and disc are larger and more conspicuous. Upper surface from pale yellowish brown to darker greyish brown, purplish brown or mouse gray. Lower surface yellowish white (Ref. 6902).
Deep water species (Ref. 6902). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij:
Tools
Speciale rapporten
Download XML
Internetbronnen
Estimates based on models
Preferred temperature (Ref.
123201): 8.5 - 15.9, mean 11.5 °C (based on 77 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00222 - 0.01969), b=2.95 (2.71 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.7 ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).