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Description or characteristics of a sampling site
Type of percent cover observation. Values include: SUBSTRATE (size of rock or sand over which the observation is taken); RELIEF (vertical relief within a 1m x 0.5m box around the sampled point); COVER (type of biotic subtrate associated cover present the uppermost layer at the observation point); SUPERLAYER (organisms which are super-numerous but not attached to the bottom and would not therefore otherwise be captured by the density or percent cover samping methods.)