Classificatie / Names Lokale 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)
Etymology: More on author: Günther.

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

marien demersaal. Tropical

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Eastern Central Pacific: Bahía de La Paz, southern Baja California, Mexico. Possibly young of some other species (Ref. 35766).

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 34.0 cm mannelijk / geslacht onbekend; (Ref. 6902)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Snout white. Mouth nearly straight. Rostral ridges confluent, very narrow, with a small and short groove at base and with spines. Entire upper surface rough (Ref. 6902).

Ovoviviparous (Ref. 50449). Size is based on original stuffed specimen, now in British Museum (Ref. 6902).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | 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).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Castro-Aguirre, J.L. and H. Espinosa Perez, 1996. Listados faunísticos de México. VII. Catálogo sistemático de las rayas y especies afines de México. (Chondrichthyes: Elasmobranchii: Rajiformes: Batoideiomorpha). Universidad Nacional Autonoma de Mexico, Mexico. 75 p. (Ref. 28767)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet geëvalueerd

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00372 (0.00145 - 0.00950), b=3.09 (2.87 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.6 ±0.5 se; based on size and trophs of closest relatives

Weerstandsvermogen (Ref. 120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

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