The cool temperate waters of the British and Irish seas contain an astonishing 6% of the world’s algal species, more than 600 different seaweeds, and yet most

Sea squirts and sponges are found in most seafloor habitats around the coasts of Britain and Ireland. Despite being the dominant life forms in many areas, these

The cool temperate waters around Britain and Ireland contain a huge variety of marine life and the sea anemones and corals, the Anthozoa, are some of the bright

"Completely revised and expanded this Second Edition covers almost 300 individual species and groups of species seen underwater, from tiny fragile sea spiders t