Algae. 1998; 13(2): 271-274.

Antifouling Action of Zosteric Acid and Copper on Spores of Ulva fasciata Delile

Hyun-Woung Shin

Department of Biological Resources, College of Natural Sciences, Soonchunhyang University

The natural antifouling compound zosteric acid(ZA), from Zostera marina, and the well-known toxic antifouling agent the copper inhibited settlement of spores of the cosmopolitan fouling green alga Ulva fasciata at the early fouling stage. Antifouling dose effectiveness of ZA revealed less effectiveness than a copper of antifouling action in spores of U. fasciata. Copper revealed AF sub(50) dose(50% of maximal aggregate spores) effectiveness at 18μgcm super(-2) d super(-1) while the ZA dose effectiveness revealed at 40 μgcm super(-2) d super(-1). Comparison of toxic and non-toxic AFs does effectiveness will be base line for further fouling study.

Keywords : antifouling, copper, spore, Ulva fasciata, zosteric acid