Glaucostegus thouin, Thouin ray : fisheries

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Glaucostegus thouin (Anonymous [Lacepède], 1798)

Thouin ray
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Glaucostegus thouin   AquaMaps   Data sources: GBIF OBIS
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Image of Glaucostegus thouin (Thouin ray)
Glaucostegus thouin
Picture by Randall, J.E.

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

Elasmobranchii (haaien en roggen) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Glaucostegidae (Giant guitarfishes)

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

; marien benthopelagisch; diepteverspreiding ? - 60 m (Ref. 114953).   Tropical; 28°N - 10°S, 33°E - 120°E (Ref. 114953)

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

Indo-West Pacific: Red Sea, India (including Sri Lanka) to Indonesia, north to Japan (Ref. 114953). Australian and old records from the Mediterranean Sea and Suriname need confirmation.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 300 cm TL mannelijk/geslacht niet bekend; (Ref. 58048)

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Found inshore (Ref. 9909) and offshore (Ref. 58784). A carnivorous fish that feeds on large shellfishes (Ref. 58784). Ovoviviparous (Ref. 50449). Biology little known (Ref. 9909). Caught occasionally by demersal tangle net fisheries operating throughout the area. Utilized for its meat, find (both very high value), skin and cartilage (Ref.58048). Marketed fresh and probably dried-salted (Ref. 9909).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)

Status op de Rode Lijst van het IUCN (Ref. 123251)

  Ernstig bedreigd (CR) (A2bd); Date assessed: 03 December 2018

CITES (Ref. 123416)


CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Preferred temperature (Ref. 115969): 24.8 - 29.1, mean 28.1 °C (based on 1958 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00149 - 0.00929), b=3.08 (2.86 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.37 se; based on food items.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Kwetsbaarheid (Ref. 59153):  Very high vulnerability (76 of 100) .
Prijsklasse (Ref. 80766):   Low.