River Mapping for Endangered Species Habitat and Streambank Erosion Assessment: Case Studies at Fort...
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Transcript of River Mapping for Endangered Species Habitat and Streambank Erosion Assessment: Case Studies at Fort...
![Page 1: River Mapping for Endangered Species Habitat and Streambank Erosion Assessment: Case Studies at Fort Benning and Camp Atterbury Paul Ayers, Kelsey Hensley,](https://reader038.fdocuments.in/reader038/viewer/2022110320/56649cb85503460f9497e053/html5/thumbnails/1.jpg)
River Mapping for Endangered Species Habitat and Streambank Erosion
Assessment: Case Studies at Fort Benning and Camp Atterbury
Paul Ayers, Kelsey Hensley, Ken Swinson, Bryan McConkey, Brett Connell
Biosystems Engineering, University of Tennessee
Heidi Howard, ERDC - CERL
Mike Peterkin, Natural Resources CoordinatorCamp Atterbury JMTC
Hugh Westbury, Watershed Program Manager, Fort Benning
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Objectives• Use canoe and kayak-mounted underwater videomapping
system• Develop aquatic habitat maps for the Driftwood River (20
miles)• Develop optimum habitat maps for Rayed Bean (Villosa
fabalis) mussel - PWTB 200-1-114 • Snorkel and sneak peek mapping• Streambank mapping (erosion) - Legacy• Ocean/coral reef aquatic habitat maps
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VIDEO CAMERAS
LASERS
SONAR TRANSDUCER
WATERPROOF CASE
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Geo-referenced Image Recording
AudioEncoder Audio output
(GPS output)
Audio Input (GPS input)
GPS
Video input
Splash Cam
DVD Recorder
GPS NMEA Data (ASCII)
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Canoeing with Drop-down Camera
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Georeferenced Above Water Image
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GIS Attributes Defined
• GPS Position
• Depth
• Width
• Substrate
• River Characteristic
• Embeddedness
• Streambank Erosion (bank height, bank angle, riparian diversity, river sinuosity)
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Modified Wentworth Scale
Substrate Description
Bedrock Unbroken Rock Surface
Fines/Sand < 0.3 cm (0.1 inch)
Small Gravel 0.3—1.0 cm (0.1—0.4 inch)
Large Gravel 1.0—10 cm (0.4—4 inch)
Cobble 10—30 cm (4—12 inch)
Small Boulder 30—60 cm (12—24 inch)
Large Boulder > 60 cm (24 inch)
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Using underwater lasers to determineSubstrate scale (dot spacing is 7.75 inches)
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Substrate Classification
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Sand Small Gravel Cobble
Small Boulder Large Boulder Bedrock
Some Substrate Types
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RiverSurface
Characteristics
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Driftwood RiverRiver Characteristics20 mile38,503 Sample Points
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Driftwood RiverThalweg Depth20 mile38,053 Sample Points
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Driftwood RiverSubstrate20 mile38,053 Sample Points
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Species at Risk Habitat Maps
• Rayed Bean (Villosa fabalis) mussel
• Develop Optimum Habitat Criteria
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Rayed Bean (Villosa fabalis) Habitat Criteria
• primarily found in small, shallow rivers• usually about 4 feet in depth or less• in and near riffles/runs• usually found deeply buried in sand and
gravel substrates • often in and around aquatic vegetation
Search • (Depth <= 4 feet)• River Characteristic = riffle/run• Substrate = sand or gravel
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Rayed Bean (Villosa fabalis) 6.7% Optimum Habitat
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Obed Wild and Scenic River
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Virtual tour capabilities
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Summary - River Habitat Videomapping for Aquatic Species at Risk (SAR) Habitat
• Cover large reaches (10 miles/day) - continuous• Non-intrusive, no access required• Determine above and below water features• Develop total river habitat suitability index• By mapping every foot of the river, the total amount
and location of optimum habitat can be determined (development occupancy model)
• Provides permanent historical video database to evaluate changing habitat conditions
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Legacy FY 2015 Proposal• Species At-Risk, Species of Concern and Declining
Species and Habitat (Natural)Pilot or demonstration efforts of new techniques, methodologies, and management practices, including the implementation of new or innovative monitoring and predictive modeling techniques.
• Ken Oristaglio – Fort Picket (Nottoway River)– Roanoke Logperch– Atlantic Pigtoe
Others?
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Snorkel mapping for Species counts Embedded video recorder and GPS on back strap
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Georeferenced manual underwater recording video for observing under rocks
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Legacy Project (Year 1)GIS-based streambank mapping to identify areas of
erosion potential on rivers/streams within military installations (Camp Atterbury and Fort Benning)
Mapping Site-specific Streambank Erosion
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Streambank Erosion Videomapping
• Determine erodibility and erosivity• Identify areas of restoration needs• Cover large areas (10 miles/day) - continuous• Non-intrusive, no access required• Permanent video database and virtual tour capability• Uses EPA Bank Assessment of Non-point source
Consequences of Sediment (BANCS) for annual total streambank erosion prediction
• Used to determine sediment TMDL’s.
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