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Cramer Fish Sciences: Fish Sciences   Innovative Scientific Solutions for Fisheries and Environmental Challenges  
Cramer Fish Sciences
"I have been pleased with Cramer Fish Sciences' work products and will continue to use them as a fisheries consultant for future projects. They provide a scientific analysis that is grounded solidly in the scientific methodology. I have found them to be innovative and very effective in the fisheries field."
Ronald S. Yockim
Attorney at Law



Bridging the Understanding Gap



Regulators, stakeholders, and conservationists often have conflicting perspectives on solutions to fish population and aquatic habitat issues. Cramer Fish Sciences combines the extensive experience of its staff with a core discipline in fisheries sciences to help bridge that understanding gap.

Most of our senior scientists have served one to three decades as fish biologists with state, federal, and tribal fisheries agencies. We have studied virtually all major salmonid and sturgeon populations in the Pacific Northwest and have gained exceptional insight and influence in the fisheries profession.

Cramer Fish Sciences brings a lot to the table when helping our clients solve fisheries challenges. Our areas of expertise include:

Regulatory Compliance

  • ESA Section 7 and 10
  • FERC relicensing procedures
  • Clean Water Act 401/404
  • Federal fish conservation acts
  • State watershed planning
  • State forest practices rules
  • Aquatic resource permitting
  • NEPA and state equivalents

Environmental Impact Assessments

  • Hydropower
  • Water development
  • Forest practices
  • Urban development
  • Harbor development
  • Mining operations
  • Oil/gas development
  • Linear facilities

Water Use Projects

  • Fish passage strategies
  • Water quality issues
  • Flow management
  • FERC relicensing
  • ESA consultations
  • Mitigation programs
  • Migration monitoring

Habitat Restoration

  • Watershed analyses
  • Habitat restoration planning
  • Stream channel reconstruction
  • In-stream wood and boulders
  • Spawning gravel augmentation
  • Riparian forest management
  • Effectiveness monitoring

Harvest Management

  • Run size/harvest rate estimates
  • Sustainable yield estimations
  • Selectivity and latent mortality
  • Mixed stock analysis
  • Regulation strategies
  • Harvest monitoring

Hatchery Effectiveness

  • Hatchery/wild interactions
  • Genetic risk assessments
  • Contribution analysis
  • Effectiveness strategies
  • Master planning
  • Monitoring programs

Fish Habitat Monitoring

  • Habitat suitability measurements
  • Stream temperature monitoring
  • Stream channel/sediment surveys
  • LWD and stream shade surveys
  • Macroinvertebrate/diatoms
  • Riparian condition surveys
  • Water quality monitoring

Advanced Statistical Analysis

  • Time series/trend analysis
  • Univariate/multivariate statistics
  • Nonparametric methods
  • Bayesian statistics
  • Cluster/ordination analysis
  • Maximum likelihood estimators
  • Data censoring techniques

Fish Population Monitoring

  • Electrofishing
  • Migrant traps
  • Resistance board weirs
  • Radio and acoustic tracking
  • Tagging (PIT, CWT, telemetry)
  • Underwater video/infrared
  • Snorkeling/diving

Fish Population Modeling

  • Viability and extinction risk
  • Juvenile salmon habitat capacity
  • Growth and bioenergetics
  • Salmon stock-recruitment
  • Water operations effects
  • Harvest/hatchery effects
  • Watershed/riparian effects

Web site designed by Steve Williamson

Cramer Fish Sciences
600 NW Fariss Rd., Gresham, OR 97030
(877) 977-0102 Toll Free, (503) 465-1940 Fax
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