Bryozoans and Hydroids are two groups of marine animals that are unrecognised by the majority of divers and frequently confused with each other, even though they are taxonomically distinct. When they are recognised at all, they have often been given confusing names such as ross coral or hornwrack which suggest they belong in completely different groups of animals and plants. However, they are both important groups and often form the major part of the animal ‘turfs’ that cloak our rocky reefs or encrust on boulders, cobbles and pebbles.
Guide to Bryozoans and Hydroids of Britain and Ireland aims to help non-specialists identify bryozoans and hydroids they see underwater, with the emphasis in recording in situ and thus making the minimum impact on the living reefs of which they are a part.
Guide to Bryozoans and Hydroids of Britain and Ireland has been produced as a part of the Seasearch project, which offers training in the identification of marine life and habitats and encourages recording by volunteers.