Relationship between Electrofishing Catch Rate and Adult Trout Abundance in Wisconsin Streams
作者： Paul S. Bergman , Michael J. Hansen , Nancy A. Nate
DOI: 10.1080/02755947.2011.635239
关键词: Salmo 、 Trout 、 Fishery 、 Cost effectiveness 、 Fontinalis 、 Brown trout 、 Abundance (ecology) 、 Electrofishing 、 Salvelinus 、 Biology
摘要: Abstract The relative quickness and cost effectiveness of single-pass electrofishing samples (catch per effort [CPE]) argues for their use over multiple-pass estimates enumerating stream fish populations. However, CPE can be an imprecise index abundance therefore may less useful than more-precise indices abundance, such as those obtained from mark–recapture or depletion methods, assessing trout We evaluated the (catch/mi) (number/mi) predictors adult brook Salvelinus fontinalis brown Salmo trutta in Wisconsin streams by quantifying relationship between abundance. First, we tested linearity while accounting measurement error. Next, explained residual variability using physical biological attributes surveyed streams. found that ...
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