Rhynchobatus laevis, Smoothnose wedgefish

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Rhynchobatus laevis (Bloch & Schneider, 1801)

Smoothnose wedgefish
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Rhynchobatus laevis   AquaMaps   Data sources: GBIF OBIS
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Image of Rhynchobatus laevis (Smoothnose wedgefish)
Rhynchobatus laevis
Picture by Krajangdara, T.

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) > Rhinidae (Wedgefishes)
Etymology: Rhynchobatus: Greek, rhingchos = snout + Greek, batis, -idos = a sting ray (Raja sp.) (Ref. 45335).  More on authors: Bloch & Schneider.

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

; marien demersaal; diepteverspreiding 0 - 60 m (Ref. 106604).   Subtropical; 35°N - 4°N, 49°E - 142°E (Ref. 114953)

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

Indo-West Pacific: Oman to Japan.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - 130 cm
Max length : 270 cm TL mannelijk/geslacht niet bekend; (Ref. 106604); Maximaal gepubliceerd gewicht: 240.0 kg (Ref. 114953)

Biologie     Verklarende woordenlijst (b.v. epibenthic)

A benthic species mainly found near the coast in shallow bays and off river mouths. It is poorly known but probably feeds on bottom-dwelling crustaceans and fishes (Ref. 114953). Ovoviviparous (Ref. 50449).

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

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5049   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00161 - 0.00818), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.6 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Kwetsbaarheid (Ref. 59153):  Very high vulnerability (80 of 100) .