Tracking phosphorus in aquaculture: Identifying losses and potential for recycling
Phosphorus (P) scarcity is the subject of
considerable research and debate. P studies, however, have yet to include the aquaculture and fisheries sectors, thus eliminating the possibility of assessing their relative importance and identifying opportunities for recycling. A recent study looks at flows of phosphorus in fisheries, aquaculture, and agriculture in Norway.
Results indicate that, contrary to most other countries where agriculture dominates, in Norway, aquaculture and agriculture drive P consumption and losses. This suggests that there are opportunities P recycling across sectors that could help address the mineral P demands of agriculture.
The research also illustrates the value of material flow analysis and systems perspectives that are at the heart of industrial ecology. See the article in Yale F&ES’s Journal of Industrial Ecology at http://bit.ly/JIE-P-fish.