Figure 6. Comparison of settlement (%) of larvae of H. elegans on biofilms made by P. luteoviolacea ATCC3349²⁶ and P. luteoviolacea (HI1).

A, dishes coated by a natural biofilm (N.B.) were positive controls; untreated Petri dishes filled with autoclaved filtered seawater (FSW) were negative controls. Bars represent mean percent of larvae that settled in 24h +/ SD (n = 5). * denotes significant difference compared with positive control (Kruskal-Wallis test, p<0.01).