Table 3. Two sided two samples Wilcoxon test comparing mean dead layer thickness, mean living layer thickness, mean whole colony size and mean LL : WC ratio between MRC and Pisces sites.

	Two-sample Wilcoxon test
	Wilcoxon W	p-Value
Dead layer thickness	14	0.1515
Living layer thickness	15	0.1837
Whole colony size	19	0.3817
LL : WC ratio	29.5	0.915