How can filamentous algae problems be avoided?
Excessive growth of filamentous algae is usually a sign of high nutrient levels in the lake. Therefore, the primary prevention strategy is to control the sources of nutrients washing into the lake. Using no-phosphorus fertilizers, maintaining septic systems regularly, diverting roof and driveway runoff into grassy areas rather than directly to the lake, disposing of pet wastes in the garbage, and planting a buffer of native plants next to the lake shore are the best actions to help prevent nutrients from reaching the water. Find out more about how to reduce nutrients and prevent algae in a lake near you. Related topics & additional resources Algae and Lakes Toxic Algae Algae Bloom Examples Snohomish County Algae Projects Additional Algae & Lake Resources Contact Gene Williams, Senior Planner, 425-388-3464 extension 4563 Marisa Burghdoff, Water Quality Analyst, 425-388-3464 extension 4639 Some of these documents are in pdf format. To read these files you’ll need to have Adobe Acrobat Re
