Skip to main content Skip to accessibility
This website is not compatible with your web browser. You should install a newer browser. If you live in Jersey and need help upgrading call the States of Jersey web team on 440099.
Government of

Information and public services for the Island of Jersey

L'înformâtion et les sèrvices publyis pouor I'Île dé Jèrri

  • Choose the service you want to log in to:


    Update your notification preferences


    Access government services


    Clear goods through customs or claim relief

  • Talentlink

    View or update your States of Jersey job application

Spider crab shell shedding normal

03 July 2014

Marine Resources officers at the Department of the Environment have assured people there is no need for concern about the number of spider crab shells that have washed up on the beach in Grouville.

Officers have received a number of calls from members of the public. They visited the site yesterday and found that it's just the moulted empty shells, known as the exoskeleton, that have washed up.

Spider crabs grow by moulting - shedding their shells - and it's a normal part of their life cycle. When the crabs moult, they exit through the back of their shell, leaving behind the whole exoskeleton including the legs and eye stalks, which can look just like an intact crab.

Marine Resources officers have explained to callers that spider crabs migrate inshore at this time of year to moult and reproduce. This cycle is closely linked with temperature, among other factors, and the recent spell of good weather may have prompted a large number of crabs to shed their shells at the same time.

You will find a picture on the States Facebook page, States of Jersey.

States of Jersey Facebook page

Back to top
rating button