Malacoraja senta, Smooth skate

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Malacoraja senta (Garman, 1885)

Smooth skate
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Native range
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Malacoraja senta   AquaMaps   Data sources: GBIF OBIS
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Image of Malacoraja senta (Smooth skate)
Malacoraja senta
Bild av Garazo Fabregat, A.

Klassificering / Namn Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (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.

Miljö: miljö / Klimatzon / djupintervall / distributionsområde Ekologi

marina; brackvatten djupbottenlevande; havsvandrande (Ref. 51243); djupintervall 25 - 1436 m (Ref. 106604). Deep-water; 54°N - 40°N, 74°W - 52°W

Utbredning Territorier | FAO områden | Ekosystem | Förekomster | Prickkarta | Utplanteringar | 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).

Storlek / Vikt / Ålder

Könsmognad: Lm ?  range ? - ? cm
Max length : 71.0 cm TL hane/ej könsbestämd; (Ref. 106604)

Kort beskrivning Bestämningsnycklar | Morfologi | Morfometri

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.

Biologi     Ordlista (t.ex. 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).

Livscykel och parningsbeteende Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver

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).

Huvudreferens Ladda upp dina referenser | referenser | Koordinator : McEachran, John | Medarbetare

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 på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))

  Sårbar (VU) (A2bd); Date assessed: 20 June 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Hot mot människor

  Harmless





Mänskliga användningsområden

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Ytterligare information

Trofisk ekologi
Livsmedelsartiklar (preys)
Födosammansättning
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Ekologi
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Frimärken, mynt, diverse.
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synonymer
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referenser

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Internet-källor

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OceanAdapt | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoologiskt register

Uppskattningar baserade på modeller

Önskad temperatur (Ref. 123201): 0.6 - 7.6, mean 4.1 °C (based on 186 cells).
Index för fylogenetisk mångfald (Ref. 82804):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00245 (0.00148 - 0.00407), b=3.19 (3.06 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.5   ±0.2 se; based on diet studies.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (Fec assumed to be <100).
Prior r = 0.09, 95% CL = 0.06 - 0.13, Based on 1 full stock assessment.
Sårbarhet i fisket (Ref. 59153):  High vulnerability (58 of 100). 🛈
Näringsämnen (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);