Raja texana, Roundel skate : fisheries, bait

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Raja texana Chandler, 1921

Roundel skate
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Raja texana   AquaMaps   Data sources: GBIF OBIS
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Image of Raja texana (Roundel skate)
Raja texana
Picture by NOAA\NMFS\Mississippi Laboratory

Classification / Names 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: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Ekologi

; marina bottenlevande; djupintervall 1 - 183 m.   Subtropical; 30°N - 18°N, 98°W - 80°W

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Western Central Atlantic: Florida, USA and the Gulf of Mexico.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 53.0 cm WD hane/ej könsbestämd; (Ref. 7251)

Short description Morfologi | Morfometri

Disk diamond-shaped; round dark spot surrounded by pale ring on base of each pectoral fin. (Ref. 26938). No small pale or dark spots on upper surface of disk, but sometimes dark blotches. No scapular spines, 1 middorsal row of spines. Distance from ocellus to eye usually less than or about equal to distance between ocelli. Snout with a clear area on each side (Ref. 7251). Upper surface rich chocolate or coffee brown, translucent on either side fo rostral cartilage. Lower surface plain white (Ref. 6902).

Biologi     Ordlista (t.ex. epibenthic)

Occur from near shore to 183 m depth at temperatures ranging from 14 to 28° C but it is most common inshore of 91 m at 16-25°C. Young occur in shallow bays. Adults tend to live offshore (Ref. 26938). Feed mainly on decapod crustaceans and to a lesser extent on other benthic invertebrates 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 in sandy or muddy flats (Ref. 205). Egg capsules are 6.3 cm long and 3.8 cm wide (Ref. 41359).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

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

Main reference Upload your references | 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)

IUCN Red List Status (Ref. 123251)

  Data deficient (DD) ; Date assessed: 01 December 2008

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fiskeri: mindre kommeriell; bete: occasionally
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Ytterligare information

Länder
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Ekosystem
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Ekologi
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Födoslag
Födointag
Näringsinnehåll
Populärnamn
synonymer
Metabolik
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Lek
Spawning aggregation
Fecundity
Ägg
Egg development
Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
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referenser
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Ljud
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Otoliths
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Internet-källor

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | GoMexSI (interaction data) | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 21.2 - 27.5, mean 24.9 °C (based on 230 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00288 (0.00131 - 0.00635), b=3.23 (3.06 - 3.40), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.8   ±0.58 se; based on food items.
Generation time: 4.8 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (Fec assumed to be <100).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (46 of 100) .
Price category (Ref. 80766):   Medium.