Malacoraja senta, Smooth skate

Malacoraja senta (Garman, 1885)

Smooth skate
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Malacoraja senta   AquaMaps   Data sources: GBIF OBIS
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Image of Malacoraja senta (Smooth skate)
Malacoraja senta
Afbeelding van Garazo Fabregat, A.

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: Malacoraja: Greek, malakos = soft + Latin, raja, -ae = ray, fis (Raja sp.) (Ref. 45335).
More on author: Garman.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien; brak water bathydemersaal; oceanodroom (Ref. 51243); diepte 25 - 1436 m (Ref. 106604). Deep-water; 54°N - 40°N, 74°W - 52°W

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

Western Atlantic: Banks off Newfoundland and southern Gulf of St. Lawrence in Canada to New Jersey, USA. Caught frequently in the river part of St. Lawrence estuary and nearby points in Quebec, Canada (Ref. 4926).

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 71.0 cm TL mannelijk / geslacht onbekend; (Ref. 106604)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Spines are larger toward front and disappear with age on rear parts of tail. Few scapular spines. Group of spines in front of and around each eye. Adults have 1 middorsal row of many small spines, 1 row of small spines on each side, middorsal row of spines extend forward on disk to area behind eyes. Young have 2 pale crossbars on tail, each outlined by a dark blotch or band. Snout pointed (Ref. 7251). Upper surface pale brown with numerous obscure darker spots, irregular pale markings. Lower surface plain white with few small dusky spots (Ref. 6902).
Body shape (shape guide): other.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Inhabits soft mud and clay bottoms of the deeper troughs and basins, sands and shells, gravel and pebbles of the offshore fishing banks (Ref. 6902). Benthic (Ref. 5951). Salinity ranges from 32.6 to 35.4 (Ref. 6902). This species is confined to deep water. No occurrence has been found in less than 8 m of water. 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 in sandy or muddy flats (Ref. 205). Egg capsules are 5.0-5.9 cm long and 3.8-4.5 cm wide (Ref. 41249, 41306, 41301). Caught too sparingly to have any commercial importance (Ref. 27314).

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))

  Kwetsbaar (VU) (A2bd); 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
FAO - Publication: search | FishSource | Sea Around Us

Meer informatie

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Internetbronnen

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 82804) 		PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00251 (0.00154 - 0.00411), b=3.18 (3.05 - 3.31), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisch niveau
(Ref. 69278) 		3.5   ±0.2 se; based on diet studies.
Weerstandsvermogen
(Ref. 120179) 		laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Rate of population increase Prior r = 0.09, 95% CL = 0.06 - 0.13, Based on 1 full stock assessment.
Kwetsbaarheid van de visserij
(Ref. 59153) 		High vulnerability (58 of 100). 🛈
Voedingsstoffen
(Ref. 124155) 		Calcium = 9.5 [1.4, 50.2] mg/100g; Iron = 0.337 [0.071, 1.045] mg/100g; Protein = 16.7 [13.9, 19.3] %; Omega3 = 0.613 [0.180, 2.396] g/100g; Selenium = 11.7 [2.8, 39.2] μg/100g; VitaminA = 9.68 [2.07, 45.52] μg/100g; Zinc = 0.452 [0.222, 0.862] mg/100g (wet weight);