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

<p>†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 (<i>n</i> = 5). Cochran's test was significant (<i>C</i> = 0.14 **). Transformation of data failed to make variances homogenous, so data were not transformed. **, <i>P</i><0.01; ns, <i>P</i>>0.05.