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Salmon smolt counting - Game and Wildlife Conservation Trust
Salmon smolt counting - Game and Wildlife Conservation Trust

Squaxin Smolt Trapping Underway | Squaxin Island Tribe's Natural Resources
Squaxin Smolt Trapping Underway | Squaxin Island Tribe's Natural Resources

Rotary Screw Trap
Rotary Screw Trap

Rotary Screw Trap fishing - April 27th, 2022 | Our trap is fishing on the  Pollett River! Water temperature was 7.4°C this morning, so we may see  smolts soon 🐟. | By
Rotary Screw Trap fishing - April 27th, 2022 | Our trap is fishing on the Pollett River! Water temperature was 7.4°C this morning, so we may see smolts soon 🐟. | By

Service employees operate a screw trap on lower Clear Creek | FWS.gov
Service employees operate a screw trap on lower Clear Creek | FWS.gov

Rotary Screw Traps are coming to the North Yuba
Rotary Screw Traps are coming to the North Yuba

Lower American River - RST Monitoring
Lower American River - RST Monitoring

Rotary Screw Trap - Napa County RCD
Rotary Screw Trap - Napa County RCD

Scientist working on White Salmon River screw trap | U.S. Geological Survey
Scientist working on White Salmon River screw trap | U.S. Geological Survey

COLUMBIA ENERGY FINISHES WORK ON COWLITZ ROTARY SCREW TRAP — Columbia  Energy and Environmental Services
COLUMBIA ENERGY FINISHES WORK ON COWLITZ ROTARY SCREW TRAP — Columbia Energy and Environmental Services

The count is on - FISHBIO | Fisheries Consultants
The count is on - FISHBIO | Fisheries Consultants

Rotary Screw Traps are coming to the North Yuba
Rotary Screw Traps are coming to the North Yuba

That sounds fishy: twisting traps troll tributaries in the Willamette |  Article | The United States Army
That sounds fishy: twisting traps troll tributaries in the Willamette | Article | The United States Army

Rotary Screw Trap Abundance Estimation
Rotary Screw Trap Abundance Estimation

Rotary Screw Trap used Non Destructively for Research in Cedar Creek in  Woodland Washington Stock Photo - Alamy
Rotary Screw Trap used Non Destructively for Research in Cedar Creek in Woodland Washington Stock Photo - Alamy

What biologists learn as the screw trap turns and captures fish | Idaho  Fish and Game
What biologists learn as the screw trap turns and captures fish | Idaho Fish and Game

Rotary Screw Traps and Inclined Plane Screen Traps
Rotary Screw Traps and Inclined Plane Screen Traps

What biologists learn as the screw trap turns and captures fish | Idaho  Fish and Game
What biologists learn as the screw trap turns and captures fish | Idaho Fish and Game

Portland District Videos
Portland District Videos

What biologists learn as the screw trap turns and captures fish | Idaho  Fish and Game
What biologists learn as the screw trap turns and captures fish | Idaho Fish and Game

Rotary Screw Traps and Inclined Plane Screen Traps
Rotary Screw Traps and Inclined Plane Screen Traps

Some assembly required - FISHBIO | Fisheries Consultants
Some assembly required - FISHBIO | Fisheries Consultants

Rotary Screw Traps - FISHBIO | Fisheries Consultants
Rotary Screw Traps - FISHBIO | Fisheries Consultants

Rotary Screw Traps - FISHBIO | Fisheries Consultants
Rotary Screw Traps - FISHBIO | Fisheries Consultants

Capilano Smolt Catch and Release | It's the 13th and the most successful  year to date for Metro Vancouver's Capilano Watershed Trap and Truck  Program. See how smolts are captured in the...
Capilano Smolt Catch and Release | It's the 13th and the most successful year to date for Metro Vancouver's Capilano Watershed Trap and Truck Program. See how smolts are captured in the...

Coho Salmon Leave Lagunitas Creek in Record Numbers | Think Blue Marin
Coho Salmon Leave Lagunitas Creek in Record Numbers | Think Blue Marin

Side-view schematic of a rotary-screw trap with the modifications in... |  Download Scientific Diagram
Side-view schematic of a rotary-screw trap with the modifications in... | Download Scientific Diagram