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Biological Monitoring

What we do

• Salmon and steelhead spawner surveys
• Smolt trapping using a rotary screw trap
• Habitat assessments
• Fish passage assessments
• Instream flow studies
• Snorkel surveys
• Gravel permeability
• Water temperature monitoring

Learn more

• Projects
• Resources

• Napa River fish
• Stream habitat
• Napa River watershed
• Dead salmon (ears) do tell tales