The inhibitory effect of biofilms produced by wild bacterial isolates to the larval settlement of the fouling ascidia Ciona intestinalis and Pyura praeputialis
Financial support: Chilean National Fund for Promotion of Scientific and Technological Development (FONDEF) project Nº DO1I1166.
Keywords: antifouling extracts, ascidian bioassays, bacterial biofilms, Ciona intestinalis, marine biofouling, natural antifoulants, Pyura praeputialis.
biofouling is a present and potentially increasing future problem
at molluscan culture centres. The problem is highly variable, exists
on different scales, and its negative impact on cultured organisms
and related economic losses at these centres has not been significantly
controlled. One approach to fouling control has been the incorporation
of natural substances into anti-fouling paints which inhibit the settlement
of common fouling organisms. The main objective of the present study
was the isolation of naturally occurring substances from marine bacteria
which were inhibitory to the settlement of Ciona intestinalis
and Pyura praeputialis, two tunicate species causing serious
fouling problems in scallop culture systems in