Welcome to Alderney Biodiversity Centre Recording Portal

Please note that this website, while still functional, is a legacy project that is soon to be superseded by a new records centre site for the entirety of the Bailiwick of Guernsey. Content on this website is no longer being actively updated beyond automated updates to records, and some sections of content are out of date.

Enter your wildlife sightings

Explore Alderney's wildlife.

News and articles

Crazy about Crabs...

From the intertidal rocky-shores to the deep sublittoral reefs of Alderney's waters, crabs are in an amazing abundance. Anecdotally, Alderney hosts a variety of crab species, from small cryptic species such as the Hermit Crab (Pagurus bernhardus), to large, lumbering species, such as the Chancre/Brown Crab (Cancer pagurus).

A male (left) and a female (right) Chancre Crab, recorded during a crab survey.