The concept of a Master Sample: Lower Columbia Example An Update

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The concept of a Master SampleLower Columbia
ExampleAn Update

• Phil Larsen
• Pacific States Marine Fisheries Commission
• c/o USEPA
• 200 SW 35th St.
• Corvallis, OR 97330
• Email Larsen.Phil_at_epa.gov
• Phone [phone]

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Spatially Balanced Sampling

• GRTS Generalized Random-Tessellation Stratified
  design
• Incorporates randomization
• Is spatially balanced
• Creates an ordered list of sites
• See www.epa.gov/nheerl/arm for details

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A Desirable Goal

• Create a design that allows and facilitates
  integration up front rather than after the fact.
• Current GRTS design allows selection of a
  master sample that can be subset to meet
  specific needs at a variety of spatial scales

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LCFRB Habitat Monitoring Key Entities

• Federal
• 5 agencies
• State
• 5 agencies
• Local
• At least 12

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LC Master Sample
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Panel 1 54 status sites (from table 8)
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Panel 2 18 annual sites (from table 8)
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Lewis 30 special interest
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Diagonstic 30 Germany
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ODFW FRAME

• Based on 124 K stream layer (origin?)
• Trimmed by eliminating traces with lt 0.6 sq. km
  basin size.
• Spawning and rearing domain defined on 1100 K
  (start and end of distribution)
• Habitat outside spawning and rearing used 1100 K.

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ODFW LC Master

• 10240 sites
• Approximately 1 site/600 meters
• Coded by
• Population
• Type spawning, rearing, habitat
• HUC (8-digit)
• General ownership
• County
• S-level (panels, e.g., annual, 3 yr, 9 yr,)

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Indicators

• Coho spawners
• Coho juveniles
• Physical habitat
• Steelhead?

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LCFRB FRAME

• Based on 124 K stream layer (origin?)
• ca. 3700 sites 1/ km
• Coded by
• Subbasin
• Tier
• Gradient
• EDT-Reach

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LCFRB Habitat Status Monitoring (p. 2)

• Landscape Census/complete coverage
• Watershed
• Uplands/Hill slopes
• Wetlands
• Stream Corridor Sample survey
• Channel Conditions
• Riparian zone
• Floodplain
• Water
• Quantity ?
• Quality

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LCFRB Stratification SchemeTable 6

• Ecoregion
• WRIA
• Subbasin (different from USGS subbasin?)
• Physiographic zone (different from ecoregion?)
• Stream order

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LCFRB Sample Type (p. 21 table 8)

• Survey Status
• Master sample
• Index Trend
• Master sample via an index stratum, e.g., Tier 1
  sites
• Diagnostic
• Master sample possible if diagnostic strata can
  be identified
• Focal site specific project evaluation
• Probability vs. judgmental (or hand selected)
  sites

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Stream Habitat Sampling LevelsTable 7 (p. 26)

• Indicator
• Remote/office
• Reconnaissance
• On the ground rapid assessment
• Inventory
• Reach/habitat
• Intensive
• Site
• Concept of Nested samples

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Utility of a Master Sample

• An exploratory tool to examine different site
  allocations easily.
• A framework for an actual integrated,
  multi-agency state-wide or regional monitoring
  program.