Brazil country information

Common names: Raia-borboleta
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from southern Brazil (Ref. 4439).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: McEachran, J.D. and B. Séret, 1990
National Database:

Common names from other countries

Madeira-sommerfuglerokke, Madeiravlinderrog, Pääsu-liblikrai, ... more

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

Elasmobranchii (haaien en roggen) (sharks and rays) > Myliobatiformes (Stingrays) > Gymnuridae (Butterfly rays)
Etymology: Gymnura: Greek, gymnos = naked + Greek, oura = tail (Ref. 45335).
More on author: Lowe.

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

marien demersaal. Subtropical

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Eastern Central Atlantic: Madeira Islands. Southwest Atlantic: southern Brazil. Validity of this species questioned in Compagno's 1999 checklist (Ref. 35766).

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 167 cm WD mannelijk / geslacht onbekend; (Ref. 4439)

Holotype measured 167 cm WD (Ref. 4439). Ovoviviparous (Ref. 50449).

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). Distinct pairing with embrace (Ref. 205).

Hoofdreferentie Upload your references | Referenties | Coördinator : McEachran, John | Medewerkers

McEachran, J.D. and B. Séret, 1990. Gymnuridae. p. 64-66. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4439)

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

Niet geëvalueerd

CITES (Ref. 128078)

Not Evaluated

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=0.00776 (0.00352 - 0.01710), b=3.09 (2.89 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.8 ±0.6 se; based on size and trophs of closest relatives

Weerstandsvermogen (Ref. 120179): Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Fec assumed to be <10).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (51 of 100).

Gymnura hirundo (Lowe, 1843)