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Aetomylaeus bovinus (GeoffroySaint-Hilaire, 1817)

Bull ray
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Aetomylaeus bovinus   AquaMaps   Data sources: GBIF OBIS
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Aetomylaeus bovinus
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Namibia country information

Common names: Bulrog, Eagle ray, Pylstert
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Possibly present only along the northern coast; absent in the cold upwelling waters. Not a target species, but caught with bottom trawls and hook-and-line.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/wa.html
National Fisheries Authority: http://www.benefit.org.na/
Occurrences: Occurrences Point map
Main Ref: Bianchi, G., K.E. Carpenter, J.-P. Roux, F.J. Molloy, D. Boyer and H.J. Boyer, 1999
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (tubarões e raias) (sharks and rays) > Myliobatiformes (Stingrays) > Myliobatidae (Eagle and manta rays)
Etymology: Aetomylaeus: Greek, aetos = eagle + Greek, mylio = mill, grinder (Ref. 45335).

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

marinhas; estuarina bentopelágico; intervalo de profundidade 10 - 150 m (Ref. 6808).   Subtropical; 44°N - 35°S, 19°W - 36°E

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Eastern Atlantic: Portugal and Morocco to Angola, including the Mediterranean, Madeira and the Canary Islands; then from Saldanha Bay to Natal (South Africa) and southern Mozambique (Ref. 5578).

Length at first maturity / Tamanho / Peso / Idade

Maturity: Lm 90.0, range 35 - 148 cm
Max length : 222.0 cm WD (female); common length : 150 cm WD macho/indeterminado; (Ref. 57025); peso máx. Publicado: 116.0 kg (Ref. 85836)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Long, flat, rounded snout like a duck's bill; head thick and pectoral disc with sharply curved, angular corners; upper or lower jaw; usually with 7 rows of flat teeth (Ref. 5578). Light brown with several pale blue-grey stripes (may be absent) dorsally, white ventrally (Ref. 5578).

Biologia     Glossário (ex. epibenthic)

Found in coastal tropical and warm temperate waters, occasionally offshore. Sometimes found in small groups (Ref. 5578). Feed on bottom-living crustaceans and mollusks. Ovoviviparous (Ref. 50449), aplacental (Ref. 57025). Prized angling fish, often released (Ref. 5578). Flesh highly esteemed (Ref. 3965).

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

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). Gestation about 6 months; 3-7 young produced (Ref. 5578). Size at birth 45 cm WD (Ref. 6677).

Referência principal Upload your references | Referências | Coordenador : McEachran, John | Colaboradores

White, W.T., 2014. A revised generic arrangement for the eagle ray family Myliobatidae, with definitions for the valid genera. Zootaxa 3860(2):149-166. (Ref. 97392)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Criticamente ameaçada (CR) (A2d); Date assessed: 04 August 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless




Utilização humana

Pescarias: espécies comerciais; peixe desportivo: sim
FAO(Publication : search) | FishSource |

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Trophic ecology
Itens alimentares
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Predadores
Ecology
Ecologia
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Estimates based on models

Preferred temperature (Ref. 115969): 13.7 - 24.5, mean 17.2 (based on 196 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5078   [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).
Nível Trófico (Ref. 69278):  3.8   ±0.57 se; based on food items.
Resiliência (Ref. 120179):  Muito baixo, tempo mínimo de duplicação da população maior que 14 anos (Fec=3).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (83 of 100).
Categoria de preço (Ref. 80766):   Medium.