South Africa country information

Common names: Arendrog, Common bull ray, Eagleray
Occurrence: native
Salinity: marine
Abundance: common (usually seen) | Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
Importance: | Ref:
Aquaculture: | Ref:
Regulations: restricted | Ref: van der Elst, R., 1993
Uses: gamefish: yes;
Comments: Occurs throughout the coast but most common in temperate Cape waters. Stock probably sound; an important component of rock and surf catch from Southwest Coast to Ciskei; a by-catch in False Bay seine nets (Ref. 4332). Popular catch of shore and skiboat anglers, usually released. Angling record 21.5 kg (Ref. 12484). Spearfishing of this species is illegal in Natal (Ref. 12484). Also Ref. 3965, 33390.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
National Database:

Common names from other countries

Aigle commun, Aguila marina, لِياء عُقاب شائع أو لياء نسر شائع, ... 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) > Myliobatidae (Eagle and manta rays)
Etymology: Myliobatis: Greek, mylo = mill + Greek, + Greek, batis,-idos = a ray (Raja sp.) (Ref. 45335).
More on author: Linnaeus.

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

marien; brak water benthopelagisch; diepte 1 - 300 m (Ref. 4440). Subtropical; 60°N - 36°S, 32°W - 58°E

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

Eastern Atlantic: Madeira, Morocco and the Canary Islands north to the western coasts of Ireland and British Isles and the southwestern North Sea, south to Natal, South Africa. Also throughout the Mediterranean.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m ?, range 60 - ? cm
Max length : 183 cm WD mannelijk / geslacht onbekend; (Ref. 4440); max. gepubliceerd gewicht: 14.5 kg (Ref. 40637)

Korte beschrijving Morfologie | Morfometrie

A plain eagleray with a short, rounded snout; disc with broadly angular corners, and upper or lower jaw usually with 7 rows of plate-like teeth (Ref. 5578). Brown or blackish dorsally, white ventrally (Ref. 5578). No caudal fin (Ref. 5578).

Found in shallow lagoons (Ref. 3965), bays and estuaries; also offshore down to at least 95 m (Ref. 5578). Often found in groups (Ref. 5578). Feeds on benthic crustaceans, mollusks and fish. Ovoviviparous (Ref. 50449). Gestation period of 6-8 months, the females give birth to 3-7 young (Ref. 35388). Caught by shore and ski-boat anglers, usually released after capture (Ref. 5578). Flesh is highly esteemed (Ref. 3965).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | 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 : McEachran, John | Medewerkers

McEachran, J.D. and B. Séret, 1990. Myliobatididae. p. 67-70. 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. 4440)

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

Ernstig bedreigd (CR) (A2bd); Date assessed: 04 August 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: van minder commercieel belang; sportvis: ja

FAO(visserij: productie; publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 11.7 - 19.8, mean 15.2 (based on 318 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00123 - 0.01235), b=3.08 (2.82 - 3.34), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.6 ±0.54 se; based on food items.

Weerstandsvermogen (Ref. 120179): Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Fec=3).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (83 of 100).

Climate Vulnerability (Ref. 125649): Moderate to high vulnerability (47 of 100).

Prijsklasse (Ref. 80766): High.

Myliobatis aquila (Linnaeus, 1758)