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Edible sea urchin

Edible sea urchin ©Polly Whyte/Earth in Focus

Edible sea urchin

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This large round urchin is sometimes found in rockpools, recognisable by its pink spiky shell (known as a test).

Scientific name

Echinus esculentus

When to see

January to December

Top facts

Stats

Diameter: up to 15cm Average Lifespan: 5-10 years
Classified as Near Threatened on the IUCN Red List.

Habitats

About

Also known as the common sea urchin, the edible sea urchin is large and round with short, strong spines. It is often a pinkish-purple colour but it can be red, green or yellow. It lives on the seabed down to depths of 40m and can occasionally be found in rockpools on a very low tide. The edible sea urchin is a grazer, feasting on seaweeds, bryozoans, barnacles and anything else it can find. Sea urchins are echinoderms, related to starfish, sea cucumbers and brittlestars. Their scientific name "Echinus" comes from the Greek word for hedgehog - it's easy to see why with all those spines!

What to look for

The largest British sea urchin. Usually pinky-purple in colour with short, stout spines. They may also be red, green or yellow.

Where to find

Found on most coasts around the UK, largely absent from the East Coast and English Channel.

Did you know?

Not all of the edible sea urchin is edible! It is the gonads that are the delicacy and referred to as sea urchin roe. It is particularly enjoyed in Spain and Portugal.