A Multibeam Sonar Device for Migratory Fish Monitoring Purposes

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 needs to be supported by suitable software for both collecting and analyzing the data. The environmental conditions at the sonar using locations are often highly demanding and hence, the performance of the sonar device needs to be excellent, and the required features of the device are rather specific: 1. High-quality sonar image: both transmitting and receiving sound beams should be focused through a movable lens for maximum image quality. 2. Adjustable sonar beam distances between c. 10-60 m. 3. Vertically (c. 3-15°) and horizontally (c. 15-30°) adjustable beam angles. 4. Adjustable transmitting frequencies allowing optimizing image quality for both short and long beam distances. 5. Installation and daily maintenance of the sonar system and data analysis must be possible for Luke personnel without external help.

This prior information notice is a preliminary notice (market consultation). This notice does not ask for offers or participation applications, but with this prior information notice Natural Resources Institute Finland (Luke) surveys the market and potential suppliers for the supply of Multibeam Sonar Device for Migratory Fish Monitoring Purposes, so that a possible call for tenders can be carried out in an appropriate manner. The contracting entity invites interested suppliers to participate in a market dialogue by sending their expression of interest and contact details (contact person, email address) by email to kirjaamo@luke.fi and preferably by 24th January 2025. The email should be titled/identified with “47/02 10 01 00 05/2025 A Multibeam Sonar Device for Migratory Fish Monitoring Purposes.”