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).
More on author: Garman.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; marien bathydemersaal; diepteverspreiding 290 - 750 m (Ref. 28767). Deep-water
Western Central Atlantic: North Carolina, USA to the Gulf of Mexico.
Size / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 25.3 cm TL (female)
Korte beschrijving
Morfologie | Morfometrie
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).
Life cycle and mating behavior
Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | 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. 125652)
Gevaarlijk voor mensen
Harmless
Gebruik door de mens
Meer informatie
Leeftijd/GrootteGroeiLengte-gewicht parametersLengte-lengte parametersLengtefrequentiesMorfometrieMorfologieLarvenPopulatiedynamica van de larvenrecruteringAbundantieBRUVS
ReferentiesAquacultuurAquacultuurprofielKweeklijnenGeneticaAlleelfrequentiesErfelijkheidZiektenVerwerkingNutrientsMass conversion
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Estimates based on models
Preferred temperature (Ref.
115969): 8.5 - 15.9, mean 11.5 °C (based on 77 cells).
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this BS (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.6 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) .
Climate Vulnerability (Ref.
125649): (0 of 100) .