Abstract
Publisher Summary This chapter describes the diatom communities on steel protected from corrosion in seawater. The differences in numbers of algae found at both sites are mainly those between cathodically protected steel and the other substrata, particularly Perspex, for the continuously submerged substrata and between Perspex and the other substrata at the intertidal site. This reinforces the conclusion that differences in substratum stability affect colonization. There are no overall differences in community structure between the substrata, and it is unlikely that there will be any differences in influence on subsequent fouling. Species of Navicula dominate the communities at both sites. Species diversity is less on these artificial substrata in seawater than for reports of artificial and natural substrata in freshwater.
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