Asian shore crabs, which were discovered in their hundreds on the east coast and out to Seymour Tower in August, are now believed to number in their thousands.
Dr Paul Chambers, of the Société Jersiaise’s Marine Biology Section, has been studying the species. He said: ‘We were checking again last month on the east coast, where they were first discovered, and although we were on the seashore for only a couple of hour,s in one 40-minute search we found 200 crabs, so that would indicate that they are there in their thousands.’
The invasive species – Latin name Hemigrapsus sanguineus – made its first appearance in the British Isles in 2009 when it was discovered in Guernsey, and in Jersey a few days later.
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