Analyses of mean percentage covers of bryozoans on laminae of E. radiata for each individual in the experimental transplantation of urchins to pilings in 2007 (a) and 2006 (b).†

†Site was a random factor with 2 levels and treatment was fixed with 2 levels (P, TP). The replicates were the kelps (n = 5). Cochran's test was used to test assumptions of homogeneity (2007, C = 0.53 ns; 2006, C = 0.46 ns). Non-significant interactions (‡) were pooled when ns with P>0.25. SNK tests of means were done where there were interactions. **, PP>0.05.