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Lake Winnebago Water Clarity and Aquatic Plant Growth During 2010

Lake Winnebago Water Clarity and Aquatic Plant Growth During 2010. Impacts to Beneficial Uses and Aquatic Plant Management Options. Sub-Agenda. Two Major Questions submitted to Senator Hopper’s office Beneficial Uses Water Quality Roles of Aquatic Plants Impacts to Beneficial Uses

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Lake Winnebago Water Clarity and Aquatic Plant Growth During 2010

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  1. Lake Winnebago Water Clarity and Aquatic Plant Growth During 2010 Impacts to Beneficial Uses and Aquatic Plant Management Options

  2. Sub-Agenda • Two Major Questions submitted to Senator Hopper’s office • Beneficial Uses • Water Quality • Roles of Aquatic Plants • Impacts to Beneficial Uses • Aquatic Plant Management (APM) Options • Long Term Funding Sources • Questions and Answers

  3. Question #1 • Why isn't the DNR/Corps of Engineers being held accountable for the plan on the water level?

  4. Water Level Management

  5. Question #2 • Why can't we KILL the weeds?

  6. Beneficial Uses of Our Waters • Scenic Beauty • Swimming • Boating • Fishing • Hunting

  7. Water Quality • All water quality data collected by DNR is available to everyone. • http://dnr.wi.gov/lakes/Projects/ByCounty.aspx • Calumet County (2 Mi from Neenah) • Winnebago County (3 Mi from Oshkosh) • Fond du Lac (Deep Hole-South End) • Or search “Water quality Reports”

  8. Lake Winnebago Near Fond du LacWater Clarity 1990-2010April through October

  9. Finding Data

  10. Finding Data

  11. Finding Data

  12. Finding Data

  13. Water Quality Cont’d • Data do not always reflect observations • 1960’s • Algae blooms • 1972 Clean Water Act • Direct discharge (waste water treatment facilities) pollution targeted • Industrial facilities, Governments, Municipalities, some Agricultural facilities • 1980’s/1990’s • Urban and rural runoff targeted

  14. The Role of Aquatic Plants • Absorb wind/wave energy • Maintain Clear water • Oxygen production • Habitat • Fish/other aquatic life • Wildlife • Nutrient absorption

  15. Submerged Aquatic Plants Typically Become EstablishedMay - June • Plants require sufficient sunlight in early growth phases • Occurs at depths of lake where light supports photosynthesis • Turbidity can prevent light reaching aquatic plants

  16. Recreational Response • “Bad for swimming and boating.” • “Cancellation of backyard activities.” • “Loss of revenue from anglers and other recreational users.” • “Bad for tourism.”

  17. Fishery Response • Numerous reports state this is the best fishing (bluegills and perch) that people can remember • Lake-wide Fishery Assessments • Perch, bluegill and crappie numbers on the rise • Near shore areas • Spawning, refuge, feeding • Increase in fish numbers coincides with increased water clarity and the increase in rooted aquatic vegetation.

  18. Fishery Response • The total impact to the local economy is: • $234,000,000 annually • Supports 4,300 jobs

  19. Wildlife Response Best waterfowl hunting in many years • Increase in migratory waterfowl numbers coincides with increased water clarity and the increase in rooted aquatic vegetation.

  20. Our Mission and Challenge • To manage the system in a manner that considers all of our beneficial uses so we all may enjoy this great resource. • Short-term • Aquatic plant management and APM permits • Long-term • Lake and aquatic plant management planning • Grant Program

  21. Aquatic Plant Management and Protection Program • Manual Removal • Chemical Control (NR 107 Permit) • Mechanical Harvesting (NR 109 Permit)

  22. Aquatic Plant Manual Removal • Waterfront Landowner may cut, rake, and remove aquatic plants in a 30’ area without a permit. • Cannot use external or auxiliary power: must be a hand-held device. • Vegetation must be removed from the water body.

  23. South End Lake Winnebago- June 23rd 2010

  24. Same Location June 25th • Following Rain Event and Wind Shift

  25. Blue Green Algae (Shoreline)

  26. Brighton Beach, Menasha

  27. Filamentous Algae Accumulation • West Shore Lake Winnebago- July 2010

  28. West Shore Lake Winnebago • Filamentous Algae

  29. Navigation Relief

  30. Chemical Treatment Millers Bay • Contact Herbicides and Algaecide

  31. Aquatic Plant Harvester

  32. Harvester Conveyer- Loader

  33. Aquatic Plant Chemical Control Permit Application

  34. Aquatic Plant Management Information • Chuck Fitzgibbon • 920-424-3061 • charles.fitzgibbon@wi.gov • http://dnr.wi.gov/lakes/plants/ • Search “aquatic plants” on the DNR home page.

  35. Grant Program • Small Scale, Large Scale, Lake Protection, Aquatic Invasive Species (AIS) • Qualified Sponsor • Counties, cities, villages, tribes, qualified non profit organizations • Detailed information available: • http://dnr.wi.gov/lakes/grants/ • Search “Lake Grants” DNR home page

  36. Grant Program • Small Scale Lake Planning Grants • Education, obtain and distribute information, develop management goals • 75% of project up to $3,000 • Deadlines: February 1 and August 1 • Large Scale Lake Planning Grants • Conduct technical studies • Determine elements of/or complete a comprehensive Lake Management Plan • 75% of project up to $10,000 • Deadlines: February 1 and August 1

  37. Grant Program • Lake Protection Grants • Land acquisition, wetland and shoreland restoration, local regulation/ordinance development • 75% of project up to $200,000 • Maximum amounts are dependant on specific project category

  38. Contacts for the Grant Program • For Large and Small Scale Lake Planning Grants: • Jay Schiefelbein • 920-662-5175 or 920-303-5449 • jeremiah.schiefelbein@wi.gov • Ted Johnson • 920-787-4686 x3017 • tedm.johnson@wi.gov • For AIS Grants: • Brenda Nordin • 920-662-5110 • brenda.nordin@wi.gov

  39. Questions/Comments

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