fish migration Archives - Simsonar

Promising Start for Automated Pink Salmon Sorting System Project

simsonar — Thu, 24 Jul 2025 11:26:12 +0000

Testing of the innovative Automated Fish Sorting System developed by Simsonar and FISHBIO has begun in Finnmark, Norway and the first results give hope for success. The project, initiated by the Norwegian Environment Agency, aims to combat invasive pink salmon more effectively while safeguarding native species such as Atlantic salmon. The University of Trondheim is acting as an independent observer of the trial.

Installation of the semi-floating dam and the attached Automated Fish Sorting System began in early July. High river levels caused by flooding delayed the work for about a week, but the System, which uses AI to automatically recognise and sort the fish, is now installed and in operation.

The system is designed to allow Atlantic salmon to pass upstream while capturing pink salmon in a trap. Current data indicates the system’s potential to help control the invasive species. The sorting system is monitored in real time, ensuring immediate response to any operational issues as testing and developing continues.

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Simsonar and FISHBIO co-operation

simsonar — Tue, 04 Mar 2025 18:20:00 +0000

Simsonar has joined forces with the Californian consulting company FISHBIO to take part in a competition to build a prototype of a fish sorting passage system to block pink salmon from migrating into rivers in northern Norway.

The project is funded by the Norwegian Environment Agency, and its goal is to fight pink salmon more effectively and efficiently while protecting native species such as Norwegian salmon.

Testing of the prototypes will take place in the summer of 2025 in Troms and Finnmark County.

More information:

FISHBIO

Troms og Finnmark

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Simsonar cameras monitoring the success of a salmon restoration project in Finland’s Iijoki River

simsonar — Mon, 10 Jun 2024 22:45:30 +0000

This summer, the “Salmon to Iijoki River” salmon restoration project will see hundreds of thousands of salmon fry released into the Iijoki and its tributaries in northern Ostrobothnia. Salmon will be also transported past hydropower plants in water tanks—both during the spring’s rising season and again in late summer—to ensure their safe passage to the sea. The goal of releasing these juveniles and transferring migrating fish is to gradually rebuild a thriving population of salmon and sea trout in the river.

With five dams and power plants along the Iijoki, this project is a significant undertaking. To monitor the project’s success, Simsonar cameras will be deployed at critical points. Two cameras will be positioned at the mouth of the downstream migration channel and one at the fish cage. These cameras will provide valuable insights into fish behavior in the channel, while also supporting the operational management of the migration route.

Learn more about the Simsonar Products and how they could support your salmon restoration or some other fish monitoring project.

Salmon to Iijoki River Project

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