How to correct fish density estimates for extinction
Working paper
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http://hdl.handle.net/11250/104695Utgivelsesdato
1990Metadata
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There have been many experimental studies on acoustic shadowing, but
once the effect is quantified, how is the compensation to be effected? This
work shows how, through postprocessing of stored time series, containing the
depth dependence of the volume backscattering strength for each ping, by a
simple formula. The a priori components of this are the mean backscattering
cross section and the mean extinction cross section.