Common eagle ray
A large, venomous ray found in the eastern Atlantic and Mediterranean.
The common eagle ray is a large cartilaginous fish inhabiting the eastern Atlantic Ocean, Mediterranean Sea, and parts of the Indian Ocean. It feeds on bottom-dwelling invertebrates using crushing jaw plates. Once abundant, it is now critically endangered due to historical overfishing and bycatch.
- Reaches 183 cm in total length
- Crushes shells with mosaic jaw plates
- Listed as critically endangered by IUCN
- Venomous spine causes mild effects in humans
- Gestation lasts six to eight months
What it is
This species features a rhomboidal disc with large triangular pectoral fins. The upper surface is brown or black, while the underside is white. A long, slender tail lacks a fin but carries a large venomous spine at its base. Males and females differ in size, with females growing larger. The snout is blunt and rounded, and a single dorsal fin sits on the back.
Where it lives
It lives in the eastern Atlantic Ocean, ranging from the North Sea and British Isles down to South Africa. Populations also exist in the Mediterranean Sea and the south-western Indian Ocean. The ray prefers open sandy seabeds but inhabits rocky mixed bottoms in lagoons. It dwells at depths up to 800 metres, though it spends most time in shallower waters under 50 metres.
How it lives
The diet consists mainly of benthic invertebrates such as crustaceans and bivalve molluscs. It uses flattened hexagonal jaw plates to crush shells rather than pointed teeth. Larger individuals eat more fish than smaller ones. Polychaete worms and sea pens are also consumed. Parasites like Entobdella diadema live on its skin, while Monocotyle myliobatis infests the gills.
Breeding and life cycle
Reproduction is oviviviparous, meaning eggs hatch inside the mother. Females carry three to seven young for six to eight months. Embryos initially feed on egg yolks before receiving uterine fluid secretions. Neonates show unhealed scars upon birth. Juveniles appear off France in summer and autumn, while South African records note them in November.
Fish and people
Fisheries catch this ray as bycatch in pelagic trawls, though numbers have dropped significantly. Most captured individuals are released alive. It poses little risk to humans despite its venomous spine, as stings are rarely severe. The species holds economic value for underwater tourism and photography. Tissue studies show lower mercury levels than other cartilaginous fish but higher arsenic.
Status and threats
The International Union for Conservation of Nature lists it as critically endangered. Populations in the Mediterranean and European Atlantic have declined sharply since the nineteenth century. Intensive fishing drove these reductions. West African populations may remain steady under less intensive artisanal fishing. Taxonomic uncertainty exists regarding Mediterranean versus Atlantic groups.
Questions people ask about Common eagle ray
Is the common eagle ray dangerous to humans?
Although it possesses a venomous spine at the base of its tail, the species is not considered a significant threat. Stings typically do not produce strong effects on humans, making it relatively safe compared to other venomous marine animals.
What does the common eagle ray eat?
It primarily feeds on benthic invertebrates, including crustaceans and bivalve molluscs. It uses specialized flattened jaw plates to crush hard shells. Larger rays also consume small fish, polychaete worms, and sea pens found on the seabed.
Why is the common eagle ray endangered?
Intensive fishing and high bycatch rates in pelagic trawl fisheries caused severe population declines, especially in the Mediterranean and European Atlantic waters. Although some are released alive, historical exploitation has made the species rare in many former habitats.
Good reading and sources
- Common eagle ray on WikipediaEncyclopedia
- More photos on Wikimedia CommonsPhotos
- Wikidata recordOpen data
The facts on this page come from the Wikipedia article "Common eagle ray", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.
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