Abstract
Federal regulations require operators of nuclear and coal-fired power-generating stations to estimate the number of fish impinged on intake screens. During winter months, impingement may range into the hundreds of thousands for certain species, making it impossible to count all intake screens completely. We present graphs for determinig the appropriate“optimal” subsample that must be obtained to estimate the total number impinged. Since the number of fish impinged tends to change drastically within a short time period, the subsample size is determined based on the most recent data. This allows for the changing nature of the species-age composition of the impinged fish. These graphs can also be used for subsampling fish catches in an aquatic system when the size of the catch is too large to sample completely.
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Beauchamp, J.J., Kumar, K.D. Subsampling program for the estimation of fish impingement. Environmental Management 8, 539–542 (1984). https://doi.org/10.1007/BF01871579
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DOI: https://doi.org/10.1007/BF01871579