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Biomanipulation as a Restoration Tool to Combat Eutrophication: Recent Advances and Future Challenges

Jeppesen, Erik
Sondergaard, Martin
Lauridsen, Torben L.
Davidson, Thomas A.
Liu, Zhengwen
Mazzeo, Nestor
Trochine, Carolina
Özkan, Korhan
Jensen, Henning S.
Trolle, Dennis
Starling, Fernando
Lazzaro, Xavier
Johansson, Liselotte S.
Bjerring, Rikke
Liboriussen, Lone
Larsen, Soren E.
Landkildehus, Frank
Egemose, Sara
Meerhoff, Mariana
Eutrophication resulting from high nutrient loading has been the paramount environmental problem for lakes world-wide for the past four decades. Efforts are being made in many parts of the world to reduce external nutrient loading via improved wastewater treatment or diversion of nutrient-rich inflows. However, even after a reduction of the external phosphorus loading, the effects obtained may be unsatisfactory. This may reflect an insufficient reduction in the external nutrient loading to effectively limit phytoplankton growth. However, the lack of success may also be due to chemical or biological within-lake inertia preventing or delaying improvements. To overcome the resilience and thereby reinforce recovery, a number of physico-chemical and biological restoration methods have been developed.