With this market survey, the Natural Resources Institute Finland (Luke) is surveying the market and requesting information from suppliers regarding the procurement of a multibeam sonar device for fish monitoring purposes…
. The new sonar device will be utilized to monitor migratory brown trout and Atlantic salmon populations in the river systems of northern Finland. The device will be located in Inari, Finland. The sonar device will be used to count ascending and descending fish in natural river channels up to c. 60
m distances. The sonar unit should produce high-quality data and enable reliable detections and length measurements of passing individual fish. The image quality must allow counting fish even in tightly migrating schools. The sonar unit nee