The Status of Lamprey Recolonization in Hood River:

Monitoring lamprey as they expand their distribution into areas that were previously inaccessible, and some that should

probably remain that way.

2009 survey sites

Photo Credits: Phil Tennis and Joe May

2009

2012

2013

2014

2017

East Fork Irrigation Canal

• 2017: 359

• 2018: 175 (including one adult)

Densities

Middle Fork Hood River

West Fork Hood River

Photo Credit: LaceMine29.com

Neal, Odell and Indian Creeks

Photo Credits: Bruce Womack

Future Directions

• eDNA (Middle Fork)

• West Fork above Punchbowl Falls

• Screening on irrigation canal intakes

• Indian Creek

Acknowledgements

• Hood River County

• Weyerhaeuser

• Hood River area landowners

• CTWS Parkdale field office

• Columbia Land Trust

• Farmers Irrigation District

• East Fork Irrigation District

• Hood River Soil & Water Conservation District