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A statistical review of sampling of fishes in the Long Term Resource Monitoring Program

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Summary

Monitoring programs for freshwater fish are commonly rely on fixed-site sampling, wherein non-randomly selected permanent stations within particular habitat types are sampled repeatedly through time. The Long Term Resource Monitoring Program fish sampling sites were selected based on subjective judgments that particular sites were representative of their habitat type. Unfortunately, fixed-site sampling cannot produce data that can be used to verify whether specific sampling sites are truly representative of habitats. Because fixed-site sampling designs are not spatially randomized, they cannot support statistically valid conclusions about patterns or trends in the larger study area. Fixed-point sampling designs can only be used to [...]

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Steven J Gutreuter

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  • Upper Midwest Environmental Sciences Center (UMESC)

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National Biological Survey, Environmental Management Technical Center, Onalaska, Wisconsin

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