Sublittoral ecology of marine algae on the North Wales coast

Abstract

1. Diving work carried out between April 1964 and July 1966 on the North Wales coast (Anglesey) showed that the west coast stations A and B could be divided into four distinct sublittoral regions, the east coast station showed a more irregular distribution of the flora. 2. The four distinct regions were: The Laminaria forest, the rock below the Laminaria zone, the bed of loose stones supporting algae in summer, and the bed of sand supporting Laminaria saccharina. 3. The distribution of algae at station C was more dependant upon the local topography of the boulders making up the sea bed. 4. There was a difference between the fruiting periods of algae growing at a great depth and in the shallow water. © 1967 Biologischen Anstalt Helgoland.