Case: Salmonid trap and transport facility at Montta power plant, River Oulujoki
The trap and transport facility was completed at the end of August 2017 in conjunction with the Montta hydropower plant on the River Oulujoki. We use the trap and transport facility to capture salmon and trout as they migrate upstream; it enables the fish to efficiently and safely bypass the migration barriers. The facility covers the lower portion of the fishway. The salmonid swimming into the facility can be transferred into a tanker truck and transported across several power plant dams to tributaries upstream for spawning. Based on experiences gained elsewhere, this approach results in significantly more broodfish in the spawning areas than if all the necessary fishways between the sea and the spawning areas were built. Fortum has good experiences with transporting landlocked salmon in Sweden on the River Klarälven, which is harnessed for hydropower production.
From the Montta trap and transport facility, fish can also be transferred into reservoirs for fishing, or their roe that has gone through natural selection can be taken to the Montta fish farm where Fortum produces salmon and sea trout for stocking in the River Oulujoki.
The trap and transport facility is a joint project by Fortum, the Muhos, Utajärvi and Vaala municipalities, the North Ostrobothnia ELY Centre, and the Ministry of Agriculture and Forestry to revitalise salmon and trout in the River Oulujoki. The facility has special national significance because the experiences gained from it will be used in migratory fish projects on other constructed rivers.
The trap and transport facility is part of the overall management of fish populations in the River Oulujoki. Fish management is based on the stocking of migratory fish, strengthening the natural life cycle, and developing the quality of the fish to be stocked. In recent years, Fortum has invested over EUR 5.5 million in the modernisation of the Montta fish farm and the construction of the trap and transport facility. The trap and transport facility has also been financed by the Muhos, Utajärvi and Vaala municipalities, and the project has received Finnish Government’s spearhead project funding from the Ministry of Agriculture and Forestry.