5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 1
Presentations • Governance background • Science Background • Four larger scale projects • Five smaller scale projects • Panel discussion 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 2
Science background 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 3
Large-scale projects: Aluminium precipitation 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 4
Pumping / Oxygenation 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 5
Sediment removal 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 6
Treated marl 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 7
Smaller scale projects • Crop irrigation with eutrophic water • Production wetlands: eutrophication to biogas • Large scale mussel farming • (Problems with) artificial oxygenation • Biomanipulation (planktivore removal) 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 8
Panel discussion • Maria Laamanen (Finnish Ministry of Environment) • Mikhail Durkin (Eco Balt) • Sif Johansson (Mistra EviEM) • Pauli Merriman (WWF) • Karl-Johan Lehtinen (NEFCO) 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 9
Wrap-up • Lena Viktorsson (Baltic Sea Centre, SU) • 3 strategies for reducing eutrophication • Societal / behavioural • Discharges • In-situ • Must reduce loads, but none of these activities exclude the others. 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 10
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