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Adventure Learning (AL) on Lake FernanMR. ANDERSON & MR. KNIGGE
SUMMER 2014
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Question: Does stream velocity affect macroinvertebrate quality?
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Hypothesis:
If stream velocity is high, then macroinvertebrate quality will be high.
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Procedure
GPS location of site tested
Measure stream velocity of three sites within our GPS location High velocity
Medium velocity
Low Velocity
Using the ball and string method, we tested stream flow
Use kick net and shovel to collect macros at each flow site
Identified the quality of the macros collected from 3 flow sites based on tolerance for water quality
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High Flow Rate--Riffle(1.13 m/s)
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Medium Flow Rate– Run(0.6 m/s)
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Low Flow Rate– Glide(0.02 m/s)
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Collecting Our Data!
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Stream Velocity Pictures
High Velocity
Medium Velocity
Low Velocity
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Results
HQ Macros MQ Macros LQ Macros
High Flow (1.13 m/s)
30 5 20
Medium Flow (0.60 m/s)
5 37 6
Low Flow (0.02 m/s)
0 2 8
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Results—Graph
High Flow (1.13 m/s) Medium Flow (0.60 m/s) Low Flow (0.02 m/s)0
10
20
30
40
50
60
Macro Quality and Stream Flow
HQ Macros MQ Macros LQ Macros Total
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Data Analysis
High Flow Lots of HQ organisms and lots of LQ organisms
Medium Flow Predominantly MQ organisms
Low flow Mainly LQ organisms, but holistically few organisms
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Conclusion
Our data supports our hypothesis
More HQ organisms were present in the high flow rate AND a larger population of organisms was discovered
As anticipated, the low flow rate site had fewer HQ organisms AND a smaller total population
In our hypothesis, we did not anticipate the large number of LQ organisms in the high flow rate site Future Research/Question: In a high flow rate site, with lots of HQ
macros would we see a trend in the number of LQ organisms?
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Adventure Learning at THS
Outline/Intro Spirit Lake Quality Project
Teach Content of Ecology
Show/demo IdaH2O processes
Test Determine teams and assign roles based on test results
Practice processes
Field Day Gather data and enter into HIS
Prepare Presentation
Spirit Lake Water Quality Summit Invite community, experts, students, teachers
Confluence Project??