Pastinachus gracilicaudus Last & Manjaji-Matsumoto, 2010
Narrowtail stingray
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drawing shows typical species in Dasyatidae.
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drawing shows typical species in Dasyatidae.
Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (haaien en roggen) (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Hypolophinae
Etymology: Pastinachus: Latin, pastinaca = a sting ray (Ref. 45335); gracilicaudus: Name from Latin 'gracilis' meaning slender, thin and 'cauda' for tail, appendage; referring to the slender appearance of the tail and narrow ventral cutaneous fold, as compared to other members of the genus Pastinachus.
More on authors: Last & Manjaji-Matsumoto.
Etymology: Pastinachus: Latin, pastinaca = a sting ray (Ref. 45335); gracilicaudus: Name from Latin 'gracilis' meaning slender, thin and 'cauda' for tail, appendage; referring to the slender appearance of the tail and narrow ventral cutaneous fold, as compared to other members of the genus Pastinachus.
More on authors: Last & Manjaji-Matsumoto.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie
marien benthopelagisch; diepte ? - 60 m (Ref. 90102). Tropical
Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri
Western Pacific: This species is reasonably common but patchily distributed in both Malaysian and Indonesian Borneo, including Sabah, Sarawak, and western and northeastern Kalimantan. Possibly more widespread in the Indo-Malay Archipelago, east to at least the Wallace Line and the the identity of a specimen collected off Beruwala (Sri Lanka) needs confirmation.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 74.7 cm WD mannelijk / geslacht onbekend; (Ref. 84288); 83.0 cm WD (female)
Max length : 74.7 cm WD mannelijk / geslacht onbekend; (Ref. 84288); 83.0 cm WD (female)
Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie
This medium-sized species (attaining about 75 cm DW) is distinguished by the following set of characters: snout rounded, not produced, angle more than 115°, apex largely naked and lacking enlarged denticles; disc length 83-89% DW; head length 38-41% DW; preoral length 15-17% DW; distance between nostrils 7-8% DW; distance between first gill slits 18-20% DW; tail compressed above mid-base of ventral cutaneous fold, its width 0.5-0.8 times its height; ventral fold low and slender, length 0.7-1.0 times DW, 17-22 times its depth below its mid-base, depth 2.0-3.6 times tail height at its mid-base; distance from anterior cloaca to sting 0.8-1 in precloacal length; two large, midscapular pearl thorns, usually preceded by a smaller irregular thorn; 120-122 pectoral-fin radials; monospondylous vertebral centra (exc. synarcual) 37-40 (Ref. 84288).
Body shape (shape guide): other.
Body shape (shape guide): other.
The depth occupied by this species is unknown as most material were collected in fish markets, but probably mainly coastal. A 69.5 cm DW adult male weighed ca 12 kg. Size at birth apparently variable; 83.0 cm DW female delivered a full term embryo with small umbilical scar; however, other retained specimens, 26.1 cm DW still had a substantial yolk sac, while in another 19.3 cm DW specimen the umbilical scar was barely visible. All these young specimens have large mid-scapular tubercles and well-developed denticles over most of the dorsal disc; a small embryo with yolk sac (16.5 cm DW) had prominent mid-scapular tubercles, but other denticles are just starting to form on the disc (Ref. 84288).
Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Hoofdreferentie
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Last, P.R. and B.M. Manjaji-Matsumoto, 2010. Description of a new stingray, Pastinachus gracilicaudus sp. nov. (Elasmobranchii: Myliobatiformes), based on material from the Indo-Malay Archipelago. pp. 115-128. In Last, P.R., White, W.T. & Pogonoski, J.J. (eds.): Descriptions of new sharks and rays from Borneo. CSIRO Marine and Atmospheric Research Paper no. 32. (Ref. 84288)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Bedreigd (EN) (A2d); Date assessed: 19 May 2020
CITES
Not Evaluated
Gevaar voor de mens
Harmless
Gebruik door de mens
FAO - Publication: search | FishSource |
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Trofische ecologie
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Menselijk gerelateerd
Aquacultuursystemen
Aquacultuurprofielen
Kweeklijnen
Ciguatera gevallen
Postzegels, munten, diversen.
Aquacultuursystemen
Aquacultuurprofielen
Kweeklijnen
Ciguatera gevallen
Postzegels, munten, diversen.
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Schattingen op basis van modellen
|
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
|
Trofisch niveau (Ref. 69278) |
3.7 ±0.6 se; based on size and trophs of closest relatives |
|
Kwetsbaarheid van de visserij (Ref. 59153) |
High to very high vulnerability (70 of 100). 🛈 |