Research and analysis

The use of a hydroacoustic counter for assessing salmon stocks

The report assesses the performance of a hydroacoustic counter, used to enumerate the passage of adult salmon in a river

From:
Environment Agency
Published
1 January 1998

Documents

The Use of a Hydroacoustic Counter for Assessing Salmon Stocks

Ref: LIT 0774

PDF, 13.9 MB, 97 pages

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Details

The results of the study show that Atlantic salmon present an acoustic target large enough to be detected above background.noise levels typical of potential sites on many UK rivers. Fish targets were detected and enumerated as they passed through the beam over a range of environmental conditions.

Published 1 January 1998