Elasmobranchii (haaien en roggen) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).
Eponymy: Harvey Raymond Bullis Jr (1924–1992) was an American malacologist who was head of the Bureau of Commercial Fisheries Exploratory Base at Pascagoula, Mississippi and Chief, Gulf Fisheries Exploration & Gear Research, US Fish and Wildlife Service. [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien bathydemersaal; diepte 200 - 600 m (Ref. 5217). Deep-water; 7°N - 30°N, 97°W - 49°W (Ref. 114953)
Western Central Atlantic: Gulf of Mexico to northern Brazil, including Caribbean islands (Ref. 114953).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 48.0 cm WD mannelijk / geslacht onbekend; (Ref. 5217); common length : 35.0 cm WD mannelijk / geslacht onbekend; (Ref. 5217)
Found on outer continental shelf and upper slope. Reaches at least 77 cm TL. Males mature by ca. 76 cm TL; birth size at ca. 16 cm TL (Ref. 114953). 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). 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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: bycatch
Tools
Speciale rapporten
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (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=0.00288 (0.00136 - 0.00610), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.9 ±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). |
Kwetsbaarheid van de visserij (Ref. 59153) |
High to very high vulnerability (72 of 100). 🛈 |
Prijsklasse (Ref. 80766) |
Medium.
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