Sea apple Pseudocolochirus violaceus

Identity card

Sea apple

Scientific name:
Pseudocolochirus violaceus
Family:
Cucumariidae
Class:
Holothuroidea
Phylum:
Echinodermata
Year of description:
Théel, 1886
IUCN Status:
Not Evaluated
CITES-status:

Not Evaluated

Distribution:

It lives in the Indo-Pacific and along the east coast of Africa.

Habitat:

The sea apple is a sea cucumber that is found in the Indo-Pacific.

Size:

It can measure from 10 cm to 18 cm in length.

Diet:

The sea apple is a detritivore and feeds on organic matter, fragments of algae and zooplankton.

Sea apple Pseudocolochirus violaceus
 

Research has shown the active effects of sea apple compounds on cancer cells.

The sea apple attaches itself to rocks with its suction-cup feet and extends its branching tentacles. These trap the organic particles on which the sea apple feeds.

Did you know?

Where is the animal to be found?

The sea apple is a sea cucumber that is found in the Indo-Pacific. It lives in the Indo-Pacific - Australia, Philippines, Indonesia, Sri Lanka, India, Vietnam, China, Hong Kong, Japan, along the east coast of Africa from South Africa as far as the Red Sea and Madagascar.

How can it be recognised?

It can be recognised by its very colourful body.

What is distinctive about it?

In response to danger, sea apples, like all sea cucumbers, have protective organs called Cuvierian tubules. The animal expels them when threatened and quickly regenerates them. When these filaments, which are made of a viscous material, come into contact with water, they swell up and turn into a protective mucus. By doing so, it paralyses its enemy, leaving it trapped.

Threat and protective measure

To date, there are no specific protection or census measures for the sea apple, which only interests the aquarium sector.

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