5 7 2015 sea based measures to mitigate eutrophication
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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

  1. 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 1

  2. 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

  3. Science background 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 3

  4. Large-scale projects: Aluminium precipitation 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 4

  5. Pumping / Oxygenation 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 5

  6. Sediment removal 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 6

  7. Treated marl 5/7/2015 Sea-based measures to mitigate eutrophication Philip Axe 7

  8. 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

  9. 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

  10. 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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