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Fish

Yellow Seahorse

Scientific Name

Hippocampus kuda

Other Common Name(s)

Common Seahorse, Estuary Seahorse, Spotted Seahorse

Body Length

7-11 cm

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A brown seahorse clinging to a stick on a sandy seabed.

Habitat

Ocean
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Diet

Planktonic animals
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Fun Facts

  • Yellow seahorses are poor swimmers. They lack caudal fins and only use their dorsal fins for propulsion. Using their prehensile tails, they usually cling to seagrass and other substrates. They can change colour patterns to camouflage themselves.

  • Yellow seahorses are monogamous and will find a new partner only when they lose the old one. During courtship and to enhance their relationship, they change colours, twine their tails together and dance. When they mate, the females deposit their eggs into the brooding pouch of the males.

Dark seahorse with white spots against a textured background.
A light-colored seahorse with dark spots swims among green aquatic plants.

Distribution

Coastal waters of Southeast Asia, Australia, Japan and other islands in the Pacific Ocean. Native to Hong Kong.

Threats & Conservation

Threats & Conservation

Threats

  • An axe and a hexagonal grid with red dotsAn axe and a hexagonal grid with red dots

    Overexploitation of Biological Resources

Yellow seahorses are valuable in traditional Chinese medicine. Although their benefits on health have not been tested, they are still captured and traded. In 2001, around 25 million seahorses were consumed as medicine around the world. They are also caught as bycatch. Habitat destruction and pollution has caused a decline in the population of yellow seahorses. They were common a few decades ago in Hong Kong, but have now become rare.

Conservation

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IUCN Red List

  • Vulnerable

CITES

  • Appendix II

Conservation Regulations​

  • Chinese Wildlife Conservation Law: Category 2

  • Protected under the Protection of Endangered Species of Animals and Plants Ordinance (Cap. 586) in Hong Kong.

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California Sea Lion

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Red-handed Tamarin

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Beale's Eyed Turtle

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ACCREDITED BY THE ASSOCIATION OF ZOOS & AQUARIUMSACCREDITED BY THE ASSOCIATION OF ZOOS & AQUARIUMS
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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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