Journal
MARINE POLLUTION BULLETIN
Volume 156, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2020.111254
Keywords
Marine spatial planning; Spatial suitability analysis; Ecological modelling; Shellfish farming; Eutrophication
Funding
- BONUS - European Union's Seventh Framework Programme for research, technological development and demonstration
- BONUS BASMATI: Innovation Fund Denmark
- Swedish Research Council Formas
- Academy of Finland
- Latvian Ministry of Education and Science
- Forschungszentrum Julich GmbH, Germany
- BONUS OPTIMUS: Innovation Fund Denmark
- German Ministry for Education and Science (BMBF)
- Swedish Agency for Marine and Water Management
- National Centre for Research and Development, Poland
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Mussel farming has increasingly come into focus as a potential mitigation measure for fish farms and eutrophication, in addition to being a food source. This study presents a GIS-based suitability analysis combined with a farm scale model to identify appropriate mussel farming sites. The sites are investigated in terms of potential mussel harvest, nutrient removal, and effects on water transparency. The model is applied to the south-western Baltic Sea. The identified suitable area is about 5-8% of the case study extent. The model shows that elevated chlorophyll levels stimulate mussel growth and that upon mussel harvest, nutrients can be removed. A single mussel farm cannot compensate for all nutrients emitted by a fish farm, but it can increase water transparency up to at least 200 m from the farm. Potential nutrient removal and water transparency increases are essential criteria for site selection in eutrophic seas, such as the Baltic Sea.
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