Improving riverine habitat by reducing eutrophication and increasing connectivity for migrating species in the Oder Delta region
The project aims to improve habitat conditions for fish populations considering water quality and river connectivity in the Oder Delta region, a biological hotspot with ecological corridors and migration paths for birds, mammals and fish.
Funded mainly by EU Interreg VA, the project will approach farmers and landowners to discuss measures to reduce nutrient inputs, and remove fish migration obstacles as well as create fish spawning grounds in tributaries of Uecker-Randow-Welse, Ina and Gowienica. Pilot measures will be realized and jointly discussed with official authorities of both, Poland and Germany.
Situation and background
The Oder Delta region, located at the southern Baltic Sea (German – Polish border) not only serves as an important spawning area for many fish species but also as the starting point towards new areas further south along the river.
The Oder Delta also is an important stopover along the East Atlantic Flyway for migrating water birds between the breeding areas in western Siberia and the wintering areas in the Wadden Sea and Western Africa.
Through land use changes, pollutant and nutrient inputs, and the over-use of existing resources, there are strong, direct and indirect impacts onto the Odra Delta ecosystem. Even though the nutrient input into the Oder lagoon and consequently the Baltic Sea, esp. phosphor and nitrogen, has decreased since the 1980s, eutrophication still is an ongoing issue within the region.
About 75% of the nitrogen load and at least 95% of the phosphorus load enters the Baltic Sea via rivers or as direct waterborne discharges, with agriculture being the primary source for nitrogen discharges. The vast majority of farmland in the Baltic Sea is private property; the private sector plays a key role in finding cost-effective solutions to reduce nutrients leakage from farming into water bodies.
Project activities and effects
The main project goal is to improve riverine habitats in tributaries of Gowienica and Ina river catchment areas on the Polish and Uecker, Randow and Welse on the German side. We aim to achieve this by reducing nutrient inputs, improving habitat structures and increasing the connectivity of rivers.
- increase the farmers’ awareness for river protection;
- create opportunities to reduce the nutrient input into rivers;
- remove obstacles for connectivity particularly for migratory fish species and
- create spawning grounds and improve water quality by integrating gravel substrate
The cross-border approach will ensure a stronger impact on the conservation of biodiversity in the Oder Delta tributaries. The direct communication and consultation with farmers on environmental issues beyond the conventional agricultural practices, the shared knowledge about river renaturation techniques amongst the partners and a social stakeholder approach in both countries will support the impact of the project.
- Feasibilty study on key nutrient sources (Gowienica, Ina, Uecker, Randow, Welse) and measures to reduce them
- Consultations with farmer, landowners and regional authorities
- Workshops and field excursions on improving river connectivity
- Renaturation measures Ina and Gowienica
- Accompanying communication activities
The following outcomes of the project will assure a longterm effect:
- a sound knowledge of nutrient sources and the status of river connectivity for Gowienica, Ina , Uecker, Randow and Welse river catchment areas,
- a better exchange with farmers and official authorities on both sides of the border, and,
- concrete pilot measures to improve water quality and river connectivity.
Friends of the Rivers Ina and Gowienica – Towarzystwo Przyjaciół Rzek Iny i Gowienicy
Environmental Action Germany (DUH) – Deutsche Umwelthilfe e.V.
Helversen’sche Stiftung für Arten- und Biotopschutz; Zachodniopomorskie Towarzystwo Przyrodnicze; Państwowe Gospodarstwo Wodne Wody Polskie; Urząd Miasta i Gminy w Goleniowie; Nadleśnictwo Goleniów; Staatliches Amt für Landwirtschaft und Umwelt Vorpommern; Landkreis Uckermark – Landwirtschafts- und Umweltamt; Biosphärenreservatsverwaltung Schorfheide-Chorin
Oder Delta region, Zachodniopomorskie, Vorpommern Greifswald
2018-12-01 – 2021-08-31
total project budget: € 304.544 (DUH) 638.444 (TPRIiG)
funding baltfc: € 49.500 (DUH) 94.767 (TPRIiG)
DUH € 149.030 (EFRE / Interreg 5A), € 25.000 (NUE Norddeutsche Stiftung für Umwelt und Entwicklung)
TPRIiG € 542.677 (EFRE / Interreg 5A)