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Fact Sheet 2008-3009

Monitoring Indicators of Harmful Cyanobacteria in Texas

By Richard L. Kiesling, Robin H. Gary, and Marcus O. Gary

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Fact Sheet
2008-3009 PDF (3.85 MB)
Harmful Algal Blooms

Harmful algal blooms can occur when certain types of microscopic algae grow quickly in water, forming visible patches that might harm the health of the environment, plants, or animals. In freshwater, species of Cyanobacteria (also known as bluegreen algae) are the dominant group of harmful, bloom-forming algae. When Cyanobacteria form a harmful algal bloom, potential impairments include restricted recreational activities because of algal scums or algal mats, potential loss of public water supply because of taste and odor compounds (for example, geosmin), and the production of toxins (for example, microcystin) in amounts capable of threatening human health and wildlife.

Version 1.0

Posted April 2008

Suggested citation:

Kiesling, R.L., Gary, R.H., and Gary, M.O., 2008, Monitoring indicators of harmful Cyanobacteria in Texas: U.S. Geological Survey Fact Sheet 2008–3009, 2 p.


Harmful Algal Blooms

Cyanobacteria Monitoring Capabilities

Reservoir Monitoring

Continuous Monitoring

Ecological Data Collection

Investigation of Biological Constituents of Concern

Monitoring Activities



For additional information contact:
Director, Texas Water Science Center
U.S. Geological Survey
8027 Exchange Drive
Austin, Texas 78754-4733

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Last modified: Tuesday, 29-Nov-2016 18:19:29 EST