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Hydrosapiens. GIV eSAT of Vermont: Water Group 2013 Ben DeJong , Nina Brundage , Caitlin Beaudet , Julie Rickner , Mariah Ollive , Hannah VanGuilder , Heather McCabe,Carly Brown, Ian Browning, Jack Cinque, Alexander Cotnoir.
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Hydrosapiens GIV eSATof Vermont: Water Group 2013 Ben DeJong, Nina Brundage, Caitlin Beaudet, Julie Rickner, Mariah Ollive, Hannah VanGuilder, Heather McCabe,CarlyBrown, Ian Browning, Jack Cinque, Alexander Cotnoir
Clear Water Revival:A case study in the Greater Burlington Area
Research Field Days June 24: Field Day at Centennial Brook(Urban) June 25: Field Day at the Mill Brook (Rural) Research Question: Can we determine the relative health of urban and rural streams using a combined physical, biological, and chemical approach?
Centennial Brook Drainage Basin: 0.34 mi2
Mill Brook Entire Mill Brook Watershed: 16.3 mi2 Drainage Basin for sampled location at Mill Brook: 4.95 mi2
Methods: Physical Biological Chemical
Stream Characteristics Light Meter Strength Exposure
Habitat Assessment Epifaunal substrate and available cover Sediment deposition Embeddedness and size of cobbles Human Alteration Riparian Vegetative Zone Width Frequency of riffles Velocity to depth comparison Area of channel flow Bank Vegetative Protection Bank Stability
Stream Geometry Velocity (m/s) Width (m) Depth (m) Discharge (m3/s)
Sampling Methods Direct Water Samples Macro Invertebrate Sampling Dump and Rinse Net Repeat 3 times
Macro Invertebrate Identification Count and Identify Macro Invertebrate in water sample Identifying characteristics Determine the group and sub-group of each organism Tally records
Properties Dissolved Oxygen Meter: Oxygen Levels HACH Meter: Nitrate and Phosphate Levels Pollution pH: Acidity
Mill Brook Sunny and humid Dirt road visible from stream Located in rural mountain area Noisier, wider width Evidence of wildlife Terrace formations Evidence of creeping Fence separating nearby shooting range Centennial Brook Sunny and humid Paved roads by entrance of woods Located in populated valley area Riparian zones, meandering river Evidence of recent rain Vegetated banks Evidence of wildlife Visual Observations
River Cross Sections and Discharge Mill Brook Cross Section Downstream
MultimetricIndex Metric Organisms
Chemical Properties Nitrogen and Phosphorous Levels
Concluding Results Physical Biological Optimal Sub Optimal Marginal Chemical • Higher phosphorous and nitrogen levels in Centennial • Higher oxygen percent in Mill Brook
Conclusion The Hydrosapienshave determined we can use physical, chemical and biological approaches to determine the health of urban and rural streams.