July 17, 2024

Norway's salmon and trout production faces phosphorus management challenge

Norway's ambitious plan to more than triple its salmon and trout production by 2050 faces a significant challenge in managing phosphorus, an essential yet problematic nutrient, Environment + Energy Leader reported.

A recent report underscores the urgent need for a circular phosphorus economy in Norway to address both environmental concerns and resource security.

Currently, Norway imports substantial amounts of phosphorus through mineral fertilisers, feed components, and food. However, only a small fraction ends up in human food, with most accumulating in soil and water systems. This inefficiency poses dual risks: potential supply disruptions due to geopolitical instabilities and environmental degradation through eutrophication of water bodies.

The report, derived from the MIND-P project, suggests a shift towards a circular phosphorus economy. This approach could reduce supply vulnerabilities and mitigate pollution risks, aligning with both economic and environmental goals.

Researchers emphasised the untapped potential in Norway's phosphorus waste streams. Fertilisers and fish sludge, often overlooked, could be transformed into valuable resources. These materials could meet domestic phosphorus demands and become high-quality exportable products.

This perspective shift presents a significant opportunity for Norway's aquaculture industry. By investing in phosphorus recovery and recycling technologies, the sector could enhance its sustainability credentials while creating new revenue streams. Developing specialised infrastructure for collecting, processing, and trading recycled phosphorus products could position Norway as a leader in sustainable aquaculture practices.

-      Environment + Energy Leader