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Aetobatus narinari (Euphrasen, 1790)

Whitespotted eagle ray
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Aetobatus narinari
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Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Myliobatiformes (Stingrays) > Aetobatidae ()
Etymology: Aetobatus: Greek, aetos = eagle + Greek, batis, batidos = a ray (Raja sp.) (Ref. 45335).

Issue
The species Aetobatus laticeps Duméril, 1865 is considered as valid, while status of Aetobatus latirostris Duméril, 1861 requires further investigation. Species information and distribution will be reviewed and corrected (Ref. 114963).

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

; marin; saumâtre benthopélagique; amphidrome (Ref. 51243); profondeur 1 - 80 m (Ref. 9710), usually 1 - ? m (Ref. 55257).   Subtropical

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Western Atlantic and probably Eastern Atlantic.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm 99.8, range 110 - 120 cm
Max length : 330 cm WD mâle / non sexé; (Ref. 58048); common length : 180 cm WD mâle / non sexé; (Ref. 6871); poids max. publié: 230.0 kg (Ref. 7251)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 0; Épines anales 0; Rayons mous anaux: 0. An eagleray with a long snout, flat and rounded like a duck's bill, a thick head, and a pectoral disc with sharply curved, angular corners, and no caudal fin; jaws usually with single row of flat, chevron-shaped teeth (Ref. 5578). Each tooth a crescent-shaped plate joined into a band (Ref. 26938). Numerous white spots on black or bluish disc; white below (Ref. 5578). Long whiplike tail, with a long spine near the base, behind small dorsal fin. No spines on disk (Ref. 7251).

Biologie     Glossaire (ex. epibenthic)

Commonly found in shallow inshore waters such as bays and coral reefs but may cross oceanic basins (Ref. 9862). Benthopelagic, found near land at 1-60 m (Ref. 58302). Sometimes enters estuaries (Ref. 6871). Swims close to the surface, occasionally leaping out of the water, or close to the bottom (Ref. 3175). Frequently forming large schools during the non-breeding season (Ref. 7251). Feeds mainly on bivalves but also eats shrimps, crabs, octopus and worms, whelks, and small fishes (Ref. 9862). Ovoviviparous (Ref. 50449). Flesh edible (Ref. 30573). Over 3 m disc width and up to 880 cm total length if the long tail is undamaged (Ref. 30573). Bears young in litters of 2-4 (Ref. 26938, 58048). Common catch of the demersal tangle net, bottom trawl, inshore gillnet and, to a lesser extent, demersal longline fisheries. Utilized for its meat and cartilage (Ref. 58048). Tail used as a decorative item (Ref. 27550).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

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). Bears up to 4 young (Ref. 5578, 6871, 37816). Width at birth 17-35 cm (Ref. 37816). According to Uchida et al (1990) (Ref. 51119) 'the male chases the female in mid water, then nibbles on her dorsal surface. The female stops swimming to begin copulation. The male bites the female on a pectoral fin and bends one clasper forward, then attempts an abdomen to abdomen copulation with either clasper, usually mid-water' (Ref. 49562). Copulation lasted for 20 seconds to 1 minute (Ref. 49562).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)

Statut dans la liste rouge de l'IUCN (Ref. 120744)

  Quasi-menacé (NT) ; Date assessed: 31 January 2006

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Traumatogenic (Ref. 4690)





Utilisations par l'homme

Pêcheries: intérêt commercial mineur; pêche sportive: oui
FAO(Publication : search) | FishSource | Sea Around Us

Plus d'informations

Noms communs
Synonymes
Métabolisme
Prédateurs
Écotoxicologie
Reproduction
Maturité
Frai
Rassemblement de ponte
Fécondité
Œufs
Développement de l'œuf
Taille/Âge
Croissance
Longueur-poids
Longueur-longueur
Fréquences de longueurs
Morphométrie
Morphologie
Larves
Dynamique des populations larvaires
Recrutement
Abondance
Références
Aquaculture
Profil d'aquaculture
Souches
Génétique
Fréquences alléliques
Héritabilité
Pathologies
Traitement
Mass conversion
Collaborateurs
Images
Stamps, Coins Misc.
Sons
Ciguatera
Vitesse
Type de nage
Surface branchiale
Otolithes
Cerveaux
Vision

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 22.3 - 29, mean 27.5 (based on 4014 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Niveau trophique (Ref. 69278):  4.2   ±0.1 se; Based on diet studies.
Résilience (Ref. 69278):  Très faible, temps minimum de doublement de population supérieur à 14 ans (tm=4-6; Fec=1-2).
Prior r = 0.06, 95% CL = 0.04 - 0.10, Based on 1 stock assessment.
Vulnérabilité (Ref. 59153):  High to very high vulnerability (74 of 100) .
Catégorie de prix (Ref. 80766):   Medium.