Nutrient availability to algae is regarded as a major influence on blooms. Encourage diluting and flushing during wetter months. Minimize sun-light load on the dam. Minimize temperature of dam water. Encourage gentle mixing of dam water to avoid stratification of water into discrete temperature layers Prevent stock physically disturbing dam sides and sediments, or defecating and urinating in the water.
Land management Keep a comprehensive vegetative cover on the catchment area.
Keep drainage lines well vegetated. Dense grassy swards are suitable for drainage lines in the upper part of catchments but tree based vegetation is needed around streams and waterways. Employ properly constructed drainage line crossings for stock and vehicle movement. Restrict stock access to beds and banks of streams. Fence as appropriate.