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Strategies for Allocation of Sample Sites

Several strategies are available for the allocation of sample sites in space and time to meet the survey objectives.

Panels and Rotating Basins - Examples

Nested Subsamples - Example

Primarily useful when all measurements are not made at all sites.  For example, water quality observations maybe made at all sites, while sediment chemistry and benthic observations are made at a subsample of those sites, while sediment toxicity and tissue contaminant determinations are made at only a subsample of those sites.  Thus nested subsamples would have:

Multi-Density - Example



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