The zonation of marine supra- littoral blue-green algae

Abstract

A brief, preliminary survey of the algal community of the upper inter-tidal and lower maritime zone of a rocky shore was made in the spring of 1971 near Millport, Isle of Cumbrae, Scotland. The blue-green algae Gloeocapsa crepidinum Thur. ex Bom. et Thur., Nostoc ento- phytum Born, et Flah., Lyngbya sp. and L. lutea [C. Ag. (Gom.)] Gom. were distributed vertically in such a way as to indicate a zonation pattern while two small green algae occurred infrequently and sporadically. All the algae investigated were embedded together in a more or less common mucilage matrix. © 1973 Taylor & Francis Group, LLC.