Echosounding course at Konnevesi Research Station

Since its first applications in the 15th century, echo-sounding technology has developed and is being used for a wide range of applications. The purpose of this course was to get students educated about echo-sounding principles in fisheries and aquatic science. How to estimate fish density and biomass, how to understand, read and analyze echo-sounding graphs; get to know what types of equipments and tools are used in echo-sounding...
Here are some of the pictures I have captured for you. Enjoy and comment ;)
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