KING VISHNU BHAGWANON KA BHAGWAN PARAMATMONKA PARATOMIC PARAMANU KASARVAMANVA...
Harmful Algal Blooms 2010: Synopsis and Insight
1. William E. Lynch Jr. Aquatic Ecosystem Management Specialist Ohio State University Extension Program
2. Winter (ice – 39 F) Low biomasses of all types Early Spring (40 – 50 F) Diatom bloom Spring – Early Summer (50 – 72 F) Green algae bloom P Limited Systems N Limited Systems Mid - Late Summer (72 – 80+ F) Green algae Mid - Late Summer (72 – 80+ F) Cyanobacteria bloom Fall (80+ – 50 F) Green algae or cyanobacteria early Diatom bloom late
5. Those Where Microcystin > 20ppb ( WHO Recreational Standard ) 2010: Microcystin > 20 ppb Note: Nearly all were less than 1 ppb; WHO’s drinking water standard 2010
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7. Ponds & Small Lakes Suspected based on provided description Confirmed based on site visit or provided sample
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12. 0 25 30 20 15 10 5 Summer N:P Ratio Cyanobacteria Abundance (%) of Algal Community 0 25 50 75 100 oligotrophic mesotrophic eutrophic hypereutrophic Adapted from: United Nations Environment Program Div. Of Technology, Industry, & Economics
14. N:P Ratio – Grand Lake St. Mary's Example N:P Ratio 4/15 5/10 6/9 acceptable desirable 7/14 No HAB’s *** Toxins first detected in late June
15. N:P Ratio – Grand Lake St. Mary's Example N:P Ratio 4/15 5/10 6/9 acceptable desirable 7/14 No HAB’s *** Toxins first detected in late June 8/19 9/15 10/7 HAB’s Widespread
16. Grand Lake St. Mary's 2010 P Levels Phosphorus 4/15 5/10 6/9 Target (<34 ppb) 7/14 8/19 9/15 10/7 ppb
17. Grand Lake St. Mary's 2010 N Levels Nitrogen 4/15 5/10 6/9 Target (<930 ppb) 7/14 8/19 9/15 10/7 ppb
