Deliverable 7.8

Abstract: Proceedings of regional stakeholder meetings in Norway

A key element of REFRESH has been the collaboration between scientists from the project and stakeholders at a range of scales, local, regional, national and international. To support widespread dissemination of REFRESH results a number of regional stakeholder events were organised bringing together scientists from REFRESH, water managers, conservation organisations and policy makers and implementers so that REFRESH results could be presented and the management implications highlighted and discussed.  
On 21-22 October 2013, a regional stakeholder meeting was held on the scientific and management challenges related to eutrophication today and under a changed climate in the Norwegian case study, the Morsa (Vansjø-Hobøl) Catchment in south-eastern Norway. Prior to the workshop several meetings were held by an organising committee comprising REFRESH scientists and regional/local managers to ensure the workshop included interesting topics for the stakeholders. Altogether 36 participants, of whom six were Refresh scientists, contributed to carry out a successful workshop. 
The conclusions from the workshop are;

  • Lake Vansjø is not healthy. The lake has moderate to poor ecological status, with high concentrations of nutrients and algae, and blooms of toxic algae may occur in the future.
  • Present day loading of nutrients is so high that neither phosphorus nor nitrogen alone is growth-limiting for algae. Most probably algae are light-limited at present.
  • Climate change will most probably increase the risk of eutrophication. Higher temperature will lower the threshold for blue-green algae. 
  • Abatement measures are just as important or even more important than before. This is the case for all measures that can reduce the loading of nutrients to the lake. 
  • For agriculture, it is important to realise that it takes time for the abatement measures to take effect. It has been documented that implemented measures do work, but with large variations in the effectiveness, depending on factors such as risk of erosion and weather. It is recommended to deploy measures suited specifically for each situation. 
  • For domestic wastewater, a continued focus on abatement measures is needed, especially to check that the facilities are working properly. Better follow-up is recommended

Several key questions still cannot be resolved. It is therefore important to continue research and monitoring such to achieve a better understanding of processes in the river basin.


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