Rocky river watershed
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Rocky River Watershed. Is this watershed healthy or unhealthy? If it is unhealthy, what are the main impairments?. By: Laura Hagy, Lydia Gray, and Elizabeth Chiu. Rocky River Facts. Lorain, Medina, Summit, and Cuyahoga counties (near Cleveland) Primary Uses

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Rocky River Watershed

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Rocky river watershed

Rocky River Watershed

Is this watershed healthy or unhealthy? If it is unhealthy, what are the main impairments?

By: Laura Hagy, Lydia Gray, and Elizabeth Chiu


Rocky river facts

Rocky River Facts

  • Lorain, Medina, Summit,

  • and Cuyahoga counties

  • (near Cleveland)

  • Primary Uses

    • Cleveland-Hopkins International Airport

    • Golf Courses

    • Urban/Farming/Forest

  • Main impairment: Nutrient Enrichment


Main threats

Main Threats


Elizabeth s hypothesis

Elizabeth’s Hypothesis

My hypothesis is that when the DO (Dissolved Oxygen) in the Rocky River increases, the IBI (Index of Biotic Integrity) also increases.


Do vs ibi data

DO vs. IBI Data


Elizabeth s conclusion

Elizabeth’s Conclusion

  • Data mostly supports hypothesis

  • When DO increases, IBI increases

  • Dissolved oxygen affects fish because they need oxygen to breathe

  • Dissolved oxygen comes from temperature or riffles

  • Algae can reduce oxygen levels


Lydia s hypothesis

Lydia’s Hypothesis

As the QHEI (Qualitative Habitat Evaluation Index) increases the IBI (Index of Biotic Integrity) will increase at the same rate.


Rocky river watershed

QHEI vs. IBI


Lydia s conclusion

Lydia’s Conclusion

My Hypothesis:

As the QHEI increases the IBI will increase at the same rate.

When a river has a rocky bottom, and lots of trees around it, you have happy fish, because:

  • Rocky bottom is breeding ground for fish and macroinvertebrates.

  • Trees keep pollutants and runoff from river.

  • Trees keep river cool= more oxygen.


Laura s hypothesis

When the health of the substrate increases the ICI or macroinvertebrate community increases in numbers also.

Laura’s Hypothesis


Laura s data analysis

Laura’s Data Analysis


Laura s conclusion

Laura’s Conclusion

  • Data supports hypothesis

  • Substrate increases, macroinvertebrates increase

  • Substrate helps macroinvertebrates

  • Sediments and silt reduce health of substrate


Acknowledgements

Acknowledgements

A great thanks to:

  • Paula, Shannon, Steve, Leslie, and both Katies

  • Kim and Megan

  • OSC,OSU, and YWSI

  • Our sponsors AEP, Battelle, P&G, and White Castle


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