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  • Cownose Ray
Fish

Cownose Ray

Scientific Name

Rhinoptera javanica

Other Common Name(s)

Javanese Cownose Ray, Javanese Cow Ray, Flapnose Ray, Flapray

Body Weight

Up to 4.5 kg

Body Width

Up to 1.5 m

Habitat

Ocean

Diet

Crustaceans and other shellfish such as clams and oysters

Fun Facts

  • Schooling behaviour is observed in cownose rays, which form large groups of up to 500 members.

  • Cownose rays have hard dental plates instead of sharp teeth. They locate shellfish hidden in the seabed and use their rows of dental plates to crush open those shells.

Distribution

Indian Ocean to Western Pacific Ocean, including the waters of countries such as South Africa, Indonesia, China, and Japan

Threats & Conservation

Threats & Conservation

Threats

  • Urbanisation & Infrastructure

  • Overexploitation of Biological Resources

  • Climate Change

Cownose rays are threatened by fisheries. Their schooling habit makes them more vulnerable to fishing pressure, which is especially heavy in Southeast Asia. Some are directly fished as targets, while some are fished as bycatch.

Conservation

Ocean Park's Conservation Efforts

The Park conserves this endangered species through breeding and achieved the world's first successful artificial insemination of a cownose ray.

Animal Breeding in Ocean Park

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Ocean Park Corporation is a charitable institution registered with Inland Revenue Department, Hong Kong (File No: 91/2801).

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