Center for Earth and Environmental Science
Indiana University ~ Purdue University, Indianapolis
 
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http://www.cees.iupui.edu/research/water_resources/ciwrp/Algae_Information

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Algae Information Resources
 

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2010-02-09 Steuben County No-P fertilizer ordinance waiver denied by State Chemist office

2009-10-26 Blue-Green Algae in Indiana: An Emerging Threat and the Need for Statewide Monitoring and a Public Information Plan.   Presented to the Indiana Environmental Quality Service Council (EQSC)

2009-09 State Reports High Levels of Blue-Green Algae in Area Lakes (Kosciusko Lakes and Streams Newsletter)

2009-07 White River Bloom Information
The White River is currently experiencing a bloom.  These conditions are being caused by a bloom of single-celled algae in the group of algae known commonly as yellow-brown algae or diatoms.


These pictures were taken in the White River on July 24th, 2009
 
What are Harmful Algal Blooms
  • Dense concentration of cells

  • Composed of microscopic cyanobacteria (also known as Blue-green algae)

Toxins
  • Some blue-green algae may produce toxins.

  • Toxins released through excretion from cells or as cells die

  • Harmful to aquatic life, pets, and humans

  • NOT all algal blooms produce toxins

What Causes Algal Blooms?
Blue-green algae photosynthesize the same as plants, they need:
  • Sunlight

  • Warm water temperature

  • Nutrients (fertilizer!)

  • Still Water Conditions

What Can Be Done to Reduce Blooms?
  • This is very difficult!

  • Reduce nutrient fertilizer input into the reservoir –Lakeside property owners –
    Fall Creek Watershed landowners

  • Algaecide treatment –Short-term solution; limited effectiveness –
    Only possible before bloom well developed –Not advisable if toxin-producing species present


Resources and Web Links Related to Algae

CEES Research Publications

  • Pascual, D.L., T.H. Johengen, G.M. Filippelli, L.P. Tedesco, and D. Moran. Cultural   
    eutrophication of three Midwest urban reservoirs: The role of nitrogen limitation in     determining phytoplankton community structure. Interagency International Symposium on Cyanobacterial Harmful Algal Blooms. September 6-10, 2005. Research Triangle Park, NC. p 68. Download Abstract (.pdf 45 kb ) | Download Poster (.pdf 5.4 mb)

  • Pascual, D.L., T.H. Johengen, P.G. Meier, G.M. Filippelli, L.P. Tedesco, and D. Moran.    2004. Cultural eutrophication of three Midwest urban reservoirs:  the role of nitrogen and  phosphorus in determining phytoplankton communities.  American Society of Limnology and Oceanography 2004 Summer Meeting Abstract Book, p. 50.
    Download Abstract: 26kb doc Download Poster: 2.2mb pdf

Indiana Resources

National Resources

International Resources
World Health Organization Guidelines for Safe Recreational Waters
http://www.who.int/water_sanitation_health/bathing/srwe1/en/

 

Center for Earth and Environmental Science
 School of Science
 Indiana University~Purdue University, Indianapolis
 723 West Michigan Street, SL118
 Indianapolis, IN 46202
 www.cees.iupui.edu
 cees@iupui.edu