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Restoration of aquatic ecosystems
https://niwa.co.nz/freshwater/research-projects/restoration-of-aquatic-ecosystems
Nutrients and agriculture
https://niwa.co.nz/our-science/freshwater/tools/kaitiaki_tools/impacts/nutrients/causes-of-nutrient-overloading/nutrients
Sediment and agriculture
https://niwa.co.nz/our-science/freshwater/tools/kaitiaki_tools/impacts/sediment/causes/sediment