A Survey of the Commoner Fucoid Algae on Scottish Shores

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Abstract
A general account is given of an algal survey of extensive coastal areas in Scotland, the purpose of which was to determine the distr. and relative quantity of the commoner spp. of Fucaceae, having in view their possible economic utilisation. The areas surveyed include the e. and n. coasts of Scotland, w. Sutherland, w. Ross-shire and the islands of Skye and Mull. The Fucoid algae which occur most abundantly are Pelvetia canaliculata, Fucus spiralis, F. vesiculosus, Ascophyllum nodosum, A. nodosum var. mackaii and Fucus serratus. The horizontal distr. of these algae is very irregular. The main factors controlling it are nature of the substratum, degree of exposure to wave action and angle of slope of the shore. Less important factors are salinity, geological structure of the coast and tidal range. Detailed surveys were carried out in the extensive stretches of rich Fucoid vegetation, which amounted in all to 87 miles of coast, and the quantity of weed present was ascertained.

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