Analysis of mean percentage covers of bryozoans on E. radiata for each individual 1 month after the shade and urchin exclusion experiment in 2009.†

†Shade was a fixed factor with 3 levels; Urchin was fixed and orthogonal with 3 levels; Patch was a random factor nested in Shade×Urchin with 4 levels and Kelp was random and nested with 2 levels. The replicates were the quadrats (n = 5). Cochran's test was significant (C = 0.14 **). Transformation of data failed to make variances homogenous, so data were not transformed. **, PP>0.05.