Figure 4e: Estimated power to detect temporal trends in bluegill catch-per-unit effort in La Grange pool in all sampled strata (backwater, main channel border, wing dam, side channel strata) under current sampling intensity (historical median n = 52). Trends assumed exponential. CPUE represents mean catch per 15 minutes effort. Estimates based on design-based, across-episode annual means.

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Long Term Resource Monitoring Program

Estimating power to detect temporal trends in LTRMP metrics

Figure 4e: Estimated power to detect temporal trends in bluegill (Lepomis macrochirus) catch-per-unit effort (CPUE) in La Grange Pool in all sampled strata (backwater, main channel border, wing dam, side channel strata) under the present sampling intensity (historical median n = 52). Trends assumed exponential. The CPUE represents mean catch per 15-min effort. Estimates based on design-based, across-episode annual means.

larger scale

Figure 4e

Disclaimer: This information is provided to help better inform ongoing LTRMP partner discussions. The power plots are generated from small sample sizes; all plots should be treated as approximate.

Contact: Questions or comments may be directed to Brian Gray, LTRMP statistician, Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin, at brgray@usgs.gov.

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