Surface Water Management Division
Algae Bloom Examples
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In the right environmental conditions, populations of algae can rapidly expand to form dense algal masses or blooms. The bloom color can help to identify the type of algae causing the bloom since algae are primarily categorized into groups based on their color. Below are examples of algae blooms that have been found in or close to Snohomish County. |
Golden Brown Algae Blooms
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Lake Roesiger 2003 |
Lake Roesiger 2003 |
Lake Crabapple 2005 |
Filamentous Green Algae Blooms
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Hilton Lake N 2006 |
Sunday Lake 2001 |
Sunday Lake 2006 |
Blue-Green Algae (Cyanobacteria) Blooms
Lakes experiencing a blue-green algae blooms may be toxic - find out more.
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Lake Ketchum 2008* |
Chain Lake 2006 |
Lake Cassidy 2008 |
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Sunday Lake 2005 |
Lake Rowland 2004 |
Lake Ketchum 2006* |
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Green Lake 2001 |
Lake Ketchum 2008 |
Lost Lake 2007 |
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Lake Cassidy 2008 |
Lake Ketchum 2008 |
Lake Ketchum 2008 |
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Lake Cassidy 2008 |
Crystal Lake 2008** |
Blackmans Lake 2006 |
*Photo courtesy of Bob Arnold
**Photo courtesy of Dan Oniel
Related Topics
Algae and Lakes
Toxic Algae
Filamentous Green Algae
Snohomish County Algae Projects
Links to Additional Algae Resources
Contact
Gene Williams, Senior Planner, 425-388-3464 extension 4563
Marisa Burghdoff, Water Quality Analyst, 425-388-3464 extension 4639