Klamath Falls Field Station (KFFS)

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The Klamath Falls Field Station (KFFS) conducts research on rare and imperiled fishes in the Klamath Basin and the desert southwest. Staff at KFFS research life history, population dynamics, and ecological and anthropogenic stressors on fishes in lentic and lotic habitats. Research at the KFFS helps managers make informed decisions about resource use in sensitive and complex arid ecosystems.

Our Research

Our Research

Conducting fisheries research in the Klamath Basin and the desert southwest.

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Species Studied

Species Studied

Conducting research on rare and imperiled fishes in the Klamath Basin and the desert southwest.

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News

Date published: November 21, 2017

Western Fisheries Science News, October 2017 | Issue 5.10

Scientists Continue to Gain Insights into Endangered Suckers in the Klamath Basin

Date published: September 5, 2016

Western Fisheries Science News, August 2016 | Issue 4.8

Mesocosms Give Us the Fish-eye View into the Lives and Deaths of Endangered Suckers

Date published: February 26, 2016

Western Fisheries Science News, February 2016 | Issue 4.2

Are Colonial Waterbirds Inhibiting the Recovery of Suckers in the Upper Klamath River Basin?

Publications

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Year Published: 2021

Spatial and temporal distribution of radio-tagged Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) suckers in Clear Lake Reservoir and associated spawning tributaries, Northern California, 2015–17

Executive SummaryData from a multi-year radio telemetry study were used to assess seasonal distribution patterns for two long-lived, federally endangered catostomids across substantially different water conditions in Clear Lake Reservoir, northern California. Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) suckers, two...

Banet, Nathan; Hewitt, David A.; Dolan-Caret, Amari; Harris, Alta C.
Banet, N.V., Hewitt, D.A., Dolan-Caret, A., and Harris, A.C., 2021, Spatial and temporal distribution of radio-tagged Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) suckers in Clear Lake Reservoir and associated spawning tributaries, Northern California, 2015–17: U.S. Geological Survey Open-File Report 2021–1061, 37 p., https://doi.org/10.3133/ofr20211061.

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Year Published: 2021

Dynamics of endangered sucker populations in Clear Lake Reservoir, California

Executive SummaryIn collaboration with the Bureau of Reclamation, the U.S. Geological Survey began a consistent monitoring program for endangered Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Clear Lake Reservoir, California, in fall 2004. The program was intended to improve understanding of the Clear...

Hewitt, David A.; Hayes, Brian S.; Harris, Alta C.; Janney, Eric C.; Kelsey, Caylen M.; Perry, Russell W.; Burdick, Summer M.
Hewitt, D.A., Hayes, B.S., Harris, A.C., Janney, E.C., Kelsey, C.M., Perry, R.W., and Burdick, S.M., 2021, Dynamics of endangered sucker populations in Clear Lake Reservoir, California: U.S. Geological Survey Open-File Report 2021–1043, 59 p., https://doi.org/10.3133/ofr20211043.

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Year Published: 2021

Survival and growth of suckers in mesocosms at three locations within Upper Klamath Lake, Oregon, 2018

Executive SummaryDue to high mortality in the first year or two of life, Lost River (Deltistes luxatus sp.) and Shortnose suckers (Chasmistes brevirostris sp.) in Upper Klamath Lake, Oregon rarely reach maturity. In 2015, the U.S. Fish and Wildlife Service began the Sucker Assisted Rearing Program (SARP) to improve early life survival before...

Burdick, Summer M.; Conway, Carla M.; Ostberg, Carl O.; Bart, Ryan J.; Elliott, Diane G.
Burdick, S.M., Conway, C.M., Ostberg, C.O., Bart, R.J., and Elliott, D.G., 2021, Survival and growth of suckers in mesocosms at three locations within Upper Klamath Lake, Oregon, 2018: U.S. Geological Survey Open-File Report 2021–1036, 18 p., https://doi.org/10.3133/ofr20211036.