The project plans and implements several stream restoration measures in the Eurajoki river basin. The aim is to improve the diversity of small waters and the habitats of endangered migratory fish, as well as promote comprehensive water management and load retention.
Ahmasoja
The Ahmasoja stream originates from Lake Ahmasjärvi and flows into the Eurajoki River in the centre of Eura. To enhance Ahmasoja as a suitable habitat for endangered salmonid fish and aquatic organisms alike, migration barriers will be removed and the cleared stream section will be renovated to restore the diverse structure and natural meandering of the riverbed. In addition, the fish community of the stream will be surveyed using electrofishing method.
Pyhäjoki
The Pyhäjoki River flows into Lake Pyhäjärvi. In recent years, the central part of the riverbed has become overgrown by aquatic plants. The aim is to plan and implement the removal of aquatic vegetation to restore the migration connection of endangered salmonid fish and other aquatic organisms.
Myllyoja
The lower part of the Myllyoja stream is naturally meandering and the riparian forests are mainly protected. However, the natural hydrology of the stream has changed especially by the drainage ditching in managed forests. Restoration needs of the lower part of the stream will be evaluated and restoration measures will be planned and implemented accordingly. In addition, the fish community of the Myllyoja stream will be surveyed using electrofishing method.
Lietsanoja
The Lietsanoja stream flows into the Yläneenjoki River mainly through forests and swamps. The water management and water quality of the stream are mainly affected by forestry practices such as drainage ditching. Restoration needs of the lower part of the Lietsanoja will be evaluated, based on which a restoration plan will be drawn up. In addition, the fish community of the stream will be surveyed using electrofishing method.