(CTWSRO): Pacific Lamprey Studies:Presentation

Confederated Tribes of the Warm Springs Reservation PACIFIC LAMPREY STUDIES

Cyndi Baker Jen Graham Joel Santos Matt Fox

Lamprey Program History  1997: Member of lamprey working group  2002: First lamprey project -- BPA 

Larval distribution & habitat association, adult escapement at Sherars Falls

 2004: USFWS Tribal Wildlife Grant 

Adult lamprey studies in lower Deschutes Basin

 2006: Portland General Electric 

Capture efficiency, potential ammocoete abundance upstream of PeltonRound Butte Hydro Complex

 2009: Columbia River Accords – BPA 

Deschutes R., Fifteenmile Ck, Hood R. and Willamette R.

Bonneville Dam RKM 235  The Dalles Dam RKM 307  Mouth Deschutes River RKM 330 

Mouth Warm Springs R. RKM 135  Mouth Shitike Creek RKM 155  Pelton Re-regulating Dam RKM 161 

Ammocoete Distribution 2003-2006 Present Badger Creek Beaver Creek Deschutes River Shitike Creek Warm Springs River White River

Absent Bakeoven Creek Beaver-Butte Creek Boulder Creek Buckhollow Creek Indian Creek Mill Creek Noisy Creek North Boulder Creek South Boulder Creek South Fork Warm Springs River Trout Creek Wilson Creek

On-reservation distribution repeated in 2008

Ammocoete Habitat Associations CTWSR 2003-2006

 Logistic regression (habitat association with ammocoete presence, p-values