World Fish Migration Day

Posted by Karl Filipsson | Events

In approximately three weeks, on April 21, World Fish Migration Day will be celebrated around the world. World Fish Migration Day is a global event with the aim to create awareness of the importance of open river systems for migratory fish. The event is coordinated by the World Fish Migration Foundation. At the time of writing, over 300 events are registered all around the globe for World Fish Migration Day, all with the goal to improve people’s understanding of the importance of healthy river ecosystems and migratory fish populations.

In Forshaga outside of Karlstad, the Swedish anglers association (Sportfiskarna Värmland) will have an open house in their regional office between 10.00-14.00 on April 21. The event is coordinated by the anglers association, researchers from Karlstad University and the sport fishing upper secondary school in Forshaga (ForshagaAkademin). Representatives from the county board in Värmland and the organization Älvräddarna will also participate in the event. Visitors can learn about fish conservation and how to study fish migration. The anglers association will also show their latest movie about river restoration, “Många bäckar små”.

Read more about the event at the anglers association here, and about World Fish Migration Day and World Fish Migration Foundation on their official websites.

We also want to encourage the registration of more events for World Fish Migration Day. In that way we can reach more people, which hopefully will create more interest and awareness of the importance of healthy river ecosystems and migratory fish populations.

Detailed program over the event in Forshaga on World Fish Migration Day (Swedish)

Dam Removal Europe in León

Posted by Daniel Nyqvist | International

Last week a Dam Removal Europe workshop was organized in León, Spain. Dan Removal Europe partners gathered managers, conservation organizations, and researchers to discuss experiences and future work on dam removal. From Karlstad University Olle Calles presented on dam removal projects in Örebro county, Mörrumsån, Nianån and Gnarpsån. Lissie de Groot, an Erasmus trainee at Karlstad University and World Fish Migration Foundation, presented her ongoing work on developing a GIS-tool for dam removals in Europe. Other presentation spanned from dam removal in the local Duero basin to large removal projects in the Penobscot River, USA, with interesting presentations also from England, Finland, France and other parts of Spain. PDF:s from most presentations can be downloaded here.


A small dam was actually being removed during the workshop’s field trip.

The Duero Basin Authority has produced a short film about fish migration, dam passage, and river restoration i Spain. It is available online (with subtitles) here.

John Piccolo, researcher at Karlstad University, is active in the Society for Conservation Biology Freshwater Working Group. For World Fish Migration Day the working group together with the Freshwater Ecology and Conservation Lab at University of Washington and the World Fish Migration Foundation are “hosting a 24-hour streaming video event which celebrates free flowing and connected rivers.” For this they are “requesting short video diaries from people around the world about what their river means to them and their community”. 

Read more about the event and how to contribute with your video here.


Last week a group of people from the Fish Passage 2015-team, World Fish Migration Foundation and WWF-Netherlands visited the River Ätran in Southern Sweden. Herting, the hydropower plant located most downstream in the system, has been subject to extensive efforts to improve fish passage. A dam structure has been removed and a large nature-like fishway constructed to facilitate both upstream and downstream passage (as well as supply salmon and other fish with additional spawning habitat) and a low sloping rack has been installed to guide downstream migrating fish to a by-pass entrance by the turbine intakes. Passing migratory fish include Atlantic salmon, brown trout, sea lamprey and European eel. Olle Calles, researcher at NRRV and Karlstad University, has been involved throughout the processes and presented pre- and post-remediation data on fish-passage and told the story about salmon population in the river. The group also visited a monitoring trap and spawning areas in the River Högvadsån, a tributary to the River Ätran and was given the opportunity to track radio tagged eel in an ongoing study on eel downstream migration and dam passage. We appreciate the visit and the interesting discussions taking place throughout their stay.


Herting hydropower plant, the naturelike fishway to the right and the intake channel to the left. In the end of the intake channel, there is a low sloping rack to guide the fish to the by-pass entrance. In the naturelike fishway the upstream migrating fish are guided to a narrow area to facilitate monitoring. (Foto from a film by Fiskevårdsteknik)


The group at the monitoring trap in the tributary Högvadsån. Present in the photo is also a visiting journalist from Swedish National Radio (SR). Mr. Möller is managing the trap.


A salmon caught and displayed at the monitoring trap.


Tracking radio-tagged eel in the River Ätran.