Rhynchobatus djiddensis, Giant guitarfish : fisheries, gamefish, aquarium

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Rhynchobatus djiddensis (Forsskål, 1775)

Giant guitarfish
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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 djiddensis   AquaMaps   Data sources: GBIF OBIS
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Image of Rhynchobatus djiddensis (Giant guitarfish)
Rhynchobatus djiddensis
Picture by Modder, T.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Rhinopristiformes (Shovelnose rays) > Rhinidae (Wedgefishes)
Etymology: Rhynchobatus: Greek, rhingchos = snout + Greek, batis, -idos = a sting ray (Raja sp.) (Ref. 45335).  More on author: Forsskål.

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

; marien; brakwater rifbewoner; diepteverspreiding 1 - 75 m (Ref. 106604).   Tropical; 35°N - 35°S, 22°E - 83°E

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

Western Indian Ocean: restricted to the Red Sea and the tropical western Indian Ocean to South Africa. Also reported from Persian Gulf (Ref. 68964). Apparently misidentified with closely related species in the northern and eastern Indian Ocean and western Pacific (however, Ref. 5978 seems to present a reliable record from western Indonesia).

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: Lm ?, range 177 - ? cm
Max length : 310 cm TL mannelijk/geslacht niet bekend; (Ref. 5578); Maximaal gepubliceerd gewicht: 227.0 kg (Ref. 3919)

Korte beschrijving Morfologie | Morfometrie

A large guitarfish with large black eyespots on the pectoral bases, a distinctive black cross between the eyes, and rows of small white spots on the upper body; snout pointed and lower caudal lobe short (Ref. 5578). Olive-green above, white below (Ref. 5578). Mouths small and contain flattened, pavement-like teeth.

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Occurs inshore and in shallow estuaries (Ref. 5578). Feeds on crabs, lobsters, bivalves, small fishes (Ref. 5578) and squids (Ref. 37816). Ovoviviparous (Ref. 50449). Takes crayfish and pilchard bait. Meat and fins sought after in Asian markets (Ref. 30573).

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). With 4 young, about 43-60 cm in length (Ref. 37816), born in the summer (Ref. 3919).

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

Compagno, L.J.V., 1986. Rhinobatidae. p. 128-131. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3919)

Status op de Rode Lijst van het IUCN (Ref. 120744)

  Kwetsbaar, zie IUCN Rode Lijst (VU) (A2d+3d+4d); Date assessed: 31 January 2006

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





Gebruik door de mens

Visserij: commercieel; vis voor de hengelsport: ja; Aquarium: Publieke aquaria
FAO(Visserij: production; publication : search) | FishSource | Sea Around Us

Meer informatie

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voedselitems
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Geslachtsrijpheid
Kuitschieten
Spawning aggregation
Fecundity
Eieren
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Lengte-gewicht parameters
Lengte-lengte parameters
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recrutering
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Estimates based on models

Preferred temperature (Ref. 115969): 24.5 - 29.3, mean 27.1 (based on 304 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5049   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00146 - 0.01036), b=3.11 (2.88 - 3.34), 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 diet studies.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Prior r = 0.28, 95% CL = 0.16 - 0.48, Based on 1 stock assessment.
Kwetsbaarheid (Ref. 59153):  Very high vulnerability (76 of 100) .
Prijsklasse (Ref. 80766):   High.