By: Hannah, Natalie, and Brittany. Location Western Ohio The Stillwater Watershed drains 673 square...
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Transcript of By: Hannah, Natalie, and Brittany. Location Western Ohio The Stillwater Watershed drains 673 square...
STILLWATER RIVERHOW ARE LIVING ORGANISMS AFFECTED BY THE CONDITION
OF STILLWATER RIVER?By: Hannah, Natalie, and Brittany
Location Western Ohio
The Stillwater Watershed drains 673 square miles in Western Ohio (including 32 square miles of Indiana).
Counties:ShelbyDarkeMontgomeryMiami
Land Use 80% agriculture
Nutrient enrichment Ammonia Metals Other habitat alterations
Impairments
Definitions IBI- Index used to measure the number of
species of fish. DO- Gaseous chemical (Oxygen) that is
important for organisms to survive. QHEI- Index used to determine habitat
quality.
• Hypothesis: As QHEI Increases, DO increases.•The QHEI affects the DO in three ways:
• Shade• Sediment • Riffles
Natalie’s Hypothesis
Dissolved Oxygen
Trees
Clarity
20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0100.00
5
10
15
Average DO vs. Average QHEI
QHEI
DO
How does this represent that my hypothesis is supported by the data?
• The trend line represents that the better the habitat quality, the better the DO levels
The QHEI of Stillwater River includes:• The trees• The clarity of the river• The riffles
Hannah’s Hypothesis I compared the average IBI to the average QHEI
- The better the habitat, the more variety of fish you have
- Having a habitat that meets a fish’s need for growth allows the diversity of fish to thrive
Stillwater River-This is an example of a great habitat.
Meandering Stream Riffles
Trees
Shade
My hypothesis is supported by the data because:When the QHEI goes , the IBI also goes
20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.00.0
10.0
20.0
30.0
40.0
50.0
60.0
f(x) = 0.41788190550534 x + 14.3917108800864R² = 0.584957644678733
QHEI and IBI SCATTER PLOT
QHEI
IBI
Brittany’s Hypothesis: DO &IBI As the DO decreases the IBI will also
decrease. All living things need oxygen Fish take in dissolved oxygen from
water
Stillwater River
Riffles
Dissolved Oxygen vs. Fish community
20.0 30.0 40.0 50.0 60.00
1
2
3
4
5
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7
8
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10
f(x) = 0.1010468150253 x + 2.2261439929558R² = 0.491072686196223
IBI avg.
DO
mn
.
CONCLUSION
Chart & Data supports hypothesis
As the DO levels increase the better the IBI levels
How are Organisms affected by the conditions of the river?
We measured the condition of Stillwater River in three ways:The biological: IBI The physical: QHEIThe chemical: DO
We concluded that these three factors build off of each other, as Stillwater’s habitat improved, the DO levels increased and there was more of a diversity of fish
Stillwater Watershed Project
☻Local citizens, government agencies and organizations teamed up to protect and enhance the habitat.
☻Raised over 2 million dollars for the Stillwater River for generations to enjoy.
Stillwater River before the project
Acknowledgements
Thank you to all the teachers and sponsors!
Laura, Jenny, Katie Hendrickson, Roberta, Katie Hossler, Paula, Leslie, Shannon and Steve.
Especially Luna, who helped be answering our questions and guide us to finishing this project