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Mar 9, 2011

Denmark's Sustainable Salmon Aquaculture

"Today the aquaculture industry -- both inland and sea-based fish farms -- is the world's fastest growing food industry."

On 9 March 2011 ScienceDaily reported that Denmark is planning to expand its "sustainable and green" aquaculture to include saltwater fish. 

Since 2005, leading Danish fish farmers such as DTU Aqua have been using "sustainable, green" water  recirculation technologies that are high-tech and environmentally friendly. Using water from boreholes, they recycle up to 95% of their water, reducing pollution. 

To date, this sustainable technology has only applied to farming freshwater fish.  Now, the Danish Ministry of Food, Agriculture, and Fisheries' Green Development and Demonstration Programme (GUDP) is now teaming up with DTU Aqua to promote the expansion of sustainable breeding to salt-water fish such as rainbow trout and salmon. 

Freshwater farming has used bio-filters to "convert the ammonia excreted by the fish into nitrate. Now the goal is to develop the technology to do the same with salt water, in order to convert this nitrate into nitrogen which can be released as a harmless gas."

DTU Aqua will manage this new saltwater project at the North Sea Science Park in Hirtshals, Denmark.  Other partners include, Biomar and AquaPri.

For more see: "Salmon Breeding Comes Ashore," ScienceDaily, 9 March 2011.

About Margaret

CEO and Curator (The Food Museum) | Managing Director and Chief Editor (GR2 Global LLC) | Educator (UCLA PhD) | Researching and writing on global food issues, nutrition and health, sustainability, history (preservation), conservation (natural resources), and design.
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