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Freshwater net-pen aquaculture and impacts from phosphorus

In the past two years there has been a great deal of discussion about net-pen aquaculture in the Michigan waters of the Great Lakes. Much of the concerns around Great Lakes net-pen aquaculture is the generation of large quantities of fish waste from these fish production operations. The main issue with fish waste is the release of phosphorus which is the growth-limiting nutrient for primary production in freshwater ecosystems.

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Michigan State University Extension