Dipturus laevis, Barndoor skate : gamefish

Dipturus laevis (Mitchill, 1818)

Barndoor skate
Waarneming toevoegen in Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Dipturus laevis   AquaMaps   Data sources: GBIF OBIS
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Image of Dipturus laevis (Barndoor skate)
Dipturus laevis
Afbeelding van Flescher, D.

Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).
More on author: Mitchill.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien demersaal; oceanodroom (Ref. 51243); diepte 0 - 750 m (Ref. 55276), usually 0 - 150 m (Ref. 55276). Temperate; 0°C - 20°C; 51°N - 33°N, 84°W - 42°W (Ref. 55276)

Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri

Western Atlantic: Grand Bank and southern Gulf of St. Lawrence in Canada to North Carolina, USA. Threatened with extinction by intensive trawling (Ref. 27438).

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 163 cm TL mannelijk / geslacht onbekend; (Ref. 114953); max. gepubliceerd gewicht: 18.0 kg (Ref. 7251)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Disk broad, with sharply angled corners and a pointed snout; front edges concave. No middorsal spines on disk. Tail with 3 rows of spine (1 middorsal row and 1 row on each side). Dorsal fins close together (Ref. 7251). Upper surface brownish, with many scattered small dark spots. Mucous pores on nuchal region. Lower surface white, blotched irregularly with gray (Ref. 6902).
Body shape (shape guide): other.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Occur from water's edge to 430 m depth; absent from shoal waters in south during warm months (Ref. 7251). Found in salinities that range from 35 along the continental edge to 31.5 inshore along the open coast and as low as 21-24 (Ref. 6902). Live on all kinds of bottom (Ref. 205). Benthic (Ref. 5951). Feed on bivalve mollusks, squids, rock crabs, lobsters, shrimps, worms and fishes. Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited during summer (with 6-month development) in sandy or muddy flats (Ref. 205, Ref. 114953). Egg capsules are 7.1-13.2 cm long and 4.6-7.4 cm wide (Ref. 41250). Males reaches maturity at ca. 100 cm TL, females at 96-105 cm TL; hatch size at 18-19 cm TL (Ref. 114953). Little use is made of the small quantities that are caught. In some cases, they are made into fish meal.

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).

Hoofdreferentie Upload uw referenties | Referenties | Coördinator : McEachran, John | Medewerkers

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))

  Niet bedreigd (LC) ; Date assessed: 20 June 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van geen belang; sportvis: ja
FAO - Publication: search | FishSource | Sea Around Us

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Schattingen op basis van modellen

Gewenste temperatuur (Ref. 123201): 0.9 - 13.9, mean 7.3 °C (based on 497 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00219 (0.00131 - 0.00366), b=3.22 (3.08 - 3.36), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.5   ±0.0 se; based on diet studies.
Generation time: 11.0 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
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 (69 of 100). 🛈
Kwetsbaarheid voor het klimaat (Ref. 125649):  High vulnerability (60 of 100). 🛈
Voedingsstoffen (Ref. 124155):  Calcium = 4.1 [0.6, 75.0] mg/100g; Iron = 0.259 [0.025, 3.160] mg/100g; Protein = 15.8 [13.7, 17.8] %; Omega3 = 0.68 [0.28, 1.65] g/100g; Selenium = 19 [4, 97] μg/100g; VitaminA = 5.44 [0.42, 65.10] μg/100g; Zinc = 0.287 [0.020, 3.199] mg/100g (wet weight);