The Sonar 4 PC application is specifically developed to do fish estimates in lakes.
In the example below, analysis is giving information on total biomass, numbers of fish pr. unit area and volume, and fish size distribution.
All survey tracks are plotted on the map of the lake. Clicking on a transect will open the echogram recorded along this transect. All analysis results are easily transported into to a commercial spreadsheet application by means of the standard operating system "cut and paste" function.
To find out more about the Sonar 4 post-processing application, consult the manufacturer's web site.
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