Integrated Status

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Integrated Status Trend (ISTM) Project An
overview of establishing, evaluating and
modifying monitoring priorities for LCR Steelhead
Jeff Rodgers (ODFW) Dan Rawding (WDFW)
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Lower Columbia River Pilot Project

• Chum, coho, fall Chinook, late fall Chinook,
  spring Chinook, winter steelhead, summer
  steelhead ESA listed
• Multi-jurisdictional
• State recover plans need integrated
  coordinated monitoring

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Five basic objectives of ISTM

1. Identify prioritize decisions, questions, and
   objectives
2. Review existing programs and designs and identify
   gaps
3. Identify monitoring designs, sampling frames,
   protocols, and analytical tools
4. Use trade-off analyses to develop recommendations
   for monitoring
5. Recommend implementation and reporting mechanisms

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Objective 1 Identify prioritize decisions,
questions, and objectives
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Objective 1 Identify prioritize decisions,
questions, and objectives
Guidance

• State Recovery Plans
• Statewide Monitoring Documents
• NOAA ESA Monitoring Guidance
• NPCC Columbia River MERR Plan
• Two workshops

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Winter Steelhead VSP Indicator Relative
Priorities
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Winter Steelhead Prioritization Filters
Mark recapture being conducted
Productivity testing.
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Total Species Population Score (SAll indicator
Scores for a Species Population) x ((2 x
Recovery Priority Score) Current Natural Origin
Abundance Score In/Out Potential Score
Special Cases Score)/5)
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Objective 2 Review existing programs and
designs and identify gaps
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Objective 2 Review existing programs and
designs and identify gaps

• Build off the indicators developed in Objective
  1
• Develop criteria to assess bias and precision of
  indicators derived from different monitoring
  approaches
• Identify the monitoring gaps (difference between
  priority and current monitoring)
• Outline specific monitoring needs based on the
  gaps

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Scoring Criteria Developed For

• Fry/parr abundance using snorkeling /or
  electrofishing
• Abundance of juvenile migrants using
  mark-recapture
• Juvenile migrant abundance using weirs
• Adult recruitment based on CWT program
• Adult recruitment based on Columbia River
  fisheries monitoring
• Adult spawner abundance using the Petersen
  mark-recapture
• Adult spawner abundance using weirs
• Adult spawner abundance using the Jolly-Seber
• adult spawner abundance using periodic live
  counts area-under-the-curve (AUC)
• adult spawner abundance using the peak count
  expansion
• adult spawner abundance using redd counts
• Age structure
• Migration/spawning timing
• Sex ratio
• Origin
• Juvenile distribution
• Spawner distribution

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Quantitative Criteria

• Unbiased estimates are important so we emphasize
  assumption, selectivity, and goodness of fit
  testing of methods.
• Precision for abundance (CV lt 15) for adults and
  juveniles, except an adult CV lt 25 for
  populations with low recovery priority. These
  standards are 95 CI 30 and 50
• Precision standards for age, origin, and sex are
  95 CI 5 for high priority recovery
  populations and 10 for other populations.

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• Effect of proportion
• on 95 CI
• 95 CI is dome shaped
• greatest uncertainty in the 95 CI is when the
  proportion 50

• Effect of Sample Size
• on 95 CI
• assuming 50 of the fish are one age, sex, or
  origin
• need 100 biological samples to meet 10, and
• 400 samples to meet 5

• difficulty in obtaining sufficient sample sizes
  from
• small populations especially under high turbid
  water

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General scoring criteria for VSP indicators and
rationale used to assess alignment of monitoring
programs
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Criteria for scoring programs that monitor the
index of juvenile abundance.
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Oregon Winter Steelhead Scoring of Current or
Planned Monitoring
Needs

• Fry/Parr abundance distribution Add
  additional 2 person crew for separate Cascade and
  Gorge strata inferences. Ways to distinguish StW
  StS.

• JOM Need to reduce potential bias of Clackamas
  data and improve precision of Sandy and Hood
  data. Ways to distinguish StW StS.

• Recruits Evaluate creel designs. CWT program
  using local wild broodstock. CVs for harvest and
  release mortality rates.

• Spawner abundance, distribution, and timing
  Test assumptions on redd life, sex ratios, and
  observation probability. Potential spatial bias
  in Sandy and Clackamas (visibility and hatchery
  fish). More effort in Hood.

• Age, sex, origin Develop programs in most
  populations, evaluate selectivity and spatial
  biases. Increase effort in Hood.

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Washington Winter Steelhead Scoring of Current
or Planned Monitoring
Needs

• Parr abundance distribution Develop parr
  monitoring program similar to ODFW.
• Spawner abundance, distribution, and timing
  Explore ways to decrease variability in females
  per redd redd duration to improve precision.
  Implement new sampling design based on redd
  modeling and sample frame.
• Recruits Add periodic angler surveys for each
  population collect and analyze steelhead
  genetic samples from spring Chinook onboard
  monitoring.
• Age, sex, origin Few spawners leads to
  insufficient adult biological samples. Solutions
  are increase abundance or explore hierarchical
  modeling. Implement selectivity tests for bias
  and age sampling at Barrier Dam (Cowlitz).

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Summary So What?

• Template that can be used to provide unbiased,
  repeatable, and documented identification of
  monitoring priorities and needs
• Graphical output easily understood and
  communicated
• Allows regional funding decisions to be developed
  under a common framework

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Questions?