Vanishing Actâ¦.. - Green Lake County

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•Algae prevents light front reaching bottom. •Decreasing water depth allows sunlight to reach bottom •Rooted plants become established •Rooted plants utilize phosphorus •Reduced phosphorus results in less algal blooms •Reduced algal blooms results in clearer water •Clearer water allows more sunlight to reach the bottom for rooted plants
Water Level Changes Fish, Habitat, & Recreation 25 Fish Spawning Period 20 N. PIKE WAL.E YEL. P Bass & Panfish Frogs & Turtles Burrow to Hibernate Relative Water Level 15 10 Submergent Plants Establish Emergent Plants Establish & Maintain Recreational Navigation Season Duck Hunt 5 Memorial Day July 4 Labor Day 0 Spring Summer Fall Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Current Natural (WI DNR/UWEX Upper Fox Basin)
Page 1:
Lake Puckaway’s Vanishing Act….
Page 4 and 5:
“It is easy to lose one's way, es
Page 6 and 7:
“Wau-bun” (1855) This lake has
Page 8 and 9:
“The boys were fed up with puddle
Page 10 and 11:
Goal of the Lock & Dam (1846): Link
Page 12 and 13:
The Princeton Dam was built by the
Page 14 and 15:
1941 Wild rice emerged along the en
Page 16 and 17: Historical Management • 1946 - Pu
Page 18 and 19: “Should the openings continue to
Page 20 and 21: 1977 o Almost no submergent plants
Page 22 and 23: Historical Management • 1983-1984
Page 24 and 25: GOAL: Maintain and Improve Water Qu
Page 26 and 27: 1. Why do we care about reduction i
Page 29: A lake without plants is like a for
Page 32 and 33: 2. How do we measure it?
Page 34 and 35: 1946
Page 36 and 37: September 23rd 1950
Page 38: Algae Bloom September 7 th 1971
Page 41 and 42: 2005 Increased Vegetation Growth No
Page 43 and 44: 1989 2005 1999 2006
Page 45 and 46: 1989 1999 2005 2006
Page 51 and 52: How do we Quantify the rate and amo
Page 53 and 54: •Scanned and GeoReferenced 7000 A
Page 55 and 56: 1989 651 Acres 1999 483 Acres >25%
Page 57 and 58: Almost 2000 acres of loss over 60 y
Page 60 and 61: 3. What causing the reduction?
Page 62 and 63: Carp Algae Blooms High Water Plant
Page 64 and 65: Shift in Fish Population??? Minnow/
Page 68 and 69: Resiliency: a:capable of withstandi
Page 70 and 71: Established Plant Bed Established L
Page 72 and 73: Establishing new plant beds require
Page 74 and 75: Moving Forward by Looking Back… E
Page 77 and 78: 4 Variables of Water Level Fluctuat
Page 79: Management Activities • Historica
Page 84: Questions?
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Vanishing Actâ¦.. - Green Lake County

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Vanishing Actâ¦.. - Green Lake County