champ habitat protocol overview by mike ward, jeremy moberg, boyd bouwes bouwes, n., j. moberg, n....
TRANSCRIPT
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CHaMP Habitat Protocol
Overview by Mike Ward, Jeremy Moberg, Boyd Bouwes
Bouwes, N., J. Moberg, N. Weber, B. Bouwes, S. Bennett, C. Beasley, C.E. Jordan, P. Nelle, M. Polino, S. Rentmeester, B. Semmens, C. Volk, M.B. Ward, and J. White. 2011. Scientific protocol for salmonid habitat surveys within the Columbia Habitat Monitoring Program. Prepared by the Integrated Status and Effectiveness Monitoring Program and published by Terraqua, Inc., Wauconda, WA. 118 pages.
Available at www.champinfo.org
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Genesis of CHaMP Habitat Protocol
•Based on learning from other habitat monitoring programs: ISEMP, EMAP, PIBO, ODFW, AREMP•Methods are based on those previously developed by other programs or disciplines (e.g. total station surveys of channels are common among geomorphologists).•Some elements of methods have been tailored for CHaMP objectives of developing a process-based habitat assessment focused on channel-unit scale measurements that are more relevant to fish biology
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Survey Workflow and Site Layout
•One site sampled per 3-person crew per day•Site length approx. 20 bankfull widths•Each site is classified, monumented, and georeferenced•Topographical Survey: Channel geomorphology suveyed with total station (2 crew)•Site and Channel Unit Attributes: Those that are relevant to fish, those that support CHaMP indicators/metrics
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Site Level AttributesSite Level Attributes•Site map and human influencesSite map and human influences•Site photo pointsSite photo points•Solar inputsSolar inputs•Riparian structure and densityRiparian structure and density•Stream temperatureStream temperature•Stream dischargeStream discharge•Water chemistryWater chemistry•Macroinvertebrate driftMacroinvertebrate drift
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1. Document the presence of human influence by category
2. Identify and relocate survey benchmarks and the extent of the site
3. Map habitat units and major features
Site MapSite map is used to:
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Site photos
Taken from the center of the bankfull channel
at transects 1, 6, 11, 16, and 21
Pictures are looking upstream, left bank,
downstream and right bank
Photos of monuments and
temp loggers
Photo show general site change between
years
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Solar Path FinderSolar Path Finder
•Solar path finder photos are taken at 5 Solar path finder photos are taken at 5 transectstransects
•Photos are oriented to the south to capture Photos are oriented to the south to capture solar/thermal input to the streamsolar/thermal input to the stream
•Photos are analyzed for thermal inputs for Photos are analyzed for thermal inputs for each month of the yeareach month of the year
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Riparian Structure
10 m X 10m riparian plot
•Riparian plots are located on the left and right banks at 5 transects
•Riparian structure and cover is estimated in a 10 by 10 meter riparian plot for the canopy, the understory, and the ground following procedures from Peck et al. 2001
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Water/Air Temperature Water temperature logger is deployed at each site attached to a “charismatic mega boulder”
Air temperature logger isdeployed at each site
Data is retrieved annually
Now that is a “Charismatic Mega Boulder” if I ever saw one
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Stream Discharge
15 to 20 equally spaced intervals across the stream
Measure stream depth at each interval and velocity measurements at .6 depth from the bottom
Extend surveyors tape across channel
Measure depth and distance from bank
Discharge is measured immediately upstream of the site
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Macro Invertebrate Drift & Water Macro Invertebrate Drift & Water ChemistryChemistry
•Drift samples are taken at Drift samples are taken at riffle habitat upstream of riffle habitat upstream of the sitethe site•Drift net and replicate net Drift net and replicate net deployed 3 hoursdeployed 3 hours•Samples are analyzed for Samples are analyzed for dry weightdry weight
•ConductivityConductivity•Phenolphthalein [P] Phenolphthalein [P] alkalinity.alkalinity.•Total [T] alkalinityTotal [T] alkalinity
DriftDrift ChemistryChemistry
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Channel Units
Slow-water Pool
Fast-water Nonturbulent
Fast-water Turbulent
Scour Pool
Plunge Pool
Dam Pool
Beaver Pool
Riffle
Cascade
Rapid
Falls/Step
Tier I
Tier II
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Channel Unit AttributesChannel Unit Attributes•Fish cover Fish cover •Ocular substrate composition Ocular substrate composition •Pebble countsPebble counts•Embeddedness estimatesEmbeddedness estimates•LWD countsLWD counts•Side channel presenceSide channel presence
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Fish Cover•Fish cover is visually estimated for each channel unit•Fish cover categories are:
1. LWD2. Vegetation3. Undercut banks 4. Artificial structures 5. Total fish cover
Substrate•Ocular estimate of each channel unit percentage of substrate composition by size category•210 pebble count representing fast-water habitat•Pebbles are selected and measured•The percentage particles are embedded by sand is visually estimated for pebbles ranging in size from 64 mm to 250 mm.•Subsurface fines are measured at two randomly selected riffles. A net is placed to collect fines as a shovel is used to dig 20 cm into the substrate at 3 randomly selected locations in two riffles. Seives are used to separate and weigh particles less than 2mm and between 2 mm and 6 mm.
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Substrate, embeddedness, and subsurface fines
•Ocular estimates of substrate categories for each channel unit•210 pebble count representing site fast-water habitat•Pebbles are selected and measured•The percentage particles are embedded by sand is visually estimated for pebbles ranging in size from 64 mm to 250 mm.•Subsurface fines are measured at two randomly selected riffles. A net is placed to collect fines as a shovel is used to dig 20 cm into the substrate at 3 randomly selected locations in two riffles. Seives are used to separate and weigh particles less than 2mm and between 2 mm and 6 mm.
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LWD•LWD is tallied according to 9 class sizes that allow for good comparison to other protocols•LWD is tallied by channel unit•LWD not associated with a channel unit is counted at the site level•Jams consisting of 5 qualifying pieces are enumerated for the channel units and at the site level•LWD in jams are tallied as individual pieces •Method allows for broad cross-walking between protocols
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Side Channels
Side channels between 16 and 49% of the flow will be mapped, channel units identified, and channel unit attributes will be collected
Side channels with less than 16% of flow will be noted and estimates of width and length will be made. No channel unit data will be gathered.
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Topographic Survey
• Collection of (X,Y,Z) points relative to 2 known points
• 500-1000 points/site• Points captured at
grade breaks
• DEM and TIN development to provide informative, accurate and precise information about channel topography
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Total Station, Data Logger, Tribracht, Tripod
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Example of a Triangulated Irregular Network (TIN)
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Example of TIN created using the CHaMP protocol overlaid on an aerial photo taken from a drone. B) Creation of the planform and delineation of habitat units of the site.
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River Bathymetry River Bathymetry Toolkit (RBT)Toolkit (RBT)
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Suite of GIS tools for processing high Suite of GIS tools for processing high resolution DEMs of channels resolution DEMs of channels
River Bathymetry River Bathymetry ToolkitToolkit
The goal is to characterize in-stream The goal is to characterize in-stream and floodplain geomorphologyand floodplain geomorphology
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ArcGIS ToolbarArcGIS Toolbar
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Input DataInput Data
DEMDEMBathymetry or bare Bathymetry or bare
earthearth
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Primary FunctionsPrimary Functions
Generate banks and Generate banks and centerlinecenterline
Remove the overall valley trend - Remove the overall valley trend - DetrendingDetrending
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Primary FunctionsPrimary Functions
Create cross Create cross sectionssections
Generate cross Generate cross section metrics section metrics
and graphsand graphs
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Primary FunctionsPrimary Functions
Longitudinal Longitudinal profileprofile
Export toExport toHEC-RASHEC-RAS
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Detrending in the RBTDetrending in the RBT
Objective: Remove the overall Objective: Remove the overall valley trendvalley trend
Original DEMOriginal DEM Detrended Detrended DEMDEM
Valley profileValley profile1910 – 1924 m1910 – 1924 m
Detrended Detrended profileprofile
99.1 – 100.2 m99.1 – 100.2 m
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Detrending in the RBTDetrending in the RBTPurpose: Provide a planar surface for Purpose: Provide a planar surface for
analyzing in-stream characteristicsanalyzing in-stream characteristics
Original Original DEMDEM
DetrendDetrendeded
High to low High to low elevationelevation
HigHighh
LowLow
Equal elevation at Equal elevation at water surface water surface
(100 m)(100 m)
100 100 mm
100 100 mm
1924 m1924 m 1910 m1910 m
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Detrending in the RBTDetrending in the RBT
Allows Allows interactive interactive
flooding flooding
Depth mapping Depth mapping without flow without flow modeling modeling
Leading to Leading to habitat habitat
mappingmapping
PoolPool
RifflRifflee
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Detrending OutputDetrending Output
Detrended grid
Banks and centerline
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Bankfull Bankfull SliderSlider
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Cross Section ExplorerCross Section Explorer
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Longitudinal Longitudinal ExplorerExplorer
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• Channel Dimensions• Channel Unit
Frequency• Residual Pool Volume• 2-D Flow Model• Froude Number• Velocity Heterogeneity• Channel Unit
Complexity• Channel Score• DEM of Difference
New RBT Metrics for CHaMP