Desert pupfish, adult male, in seine net with other fish. Captured from the USGS/BOR Shallow Habitat Project experimental ponds on the southeast side of the Salton Sea, CA.
Barbara Martin
My career has focused on two main areas of research 1) effects of contaminants on the aquatic environment and 2) habitat requirements of endangered species. Currently I am part of a team focused on identifying the causes of the declining Lost River and shortnose sucker populations in Upper Klamath Lake. My research is primarily composed of laboratory trials and combines my two areas of expertise.
Research Interests:
My long term research interests include examining the effects of contaminants and toxicants on imperiled species. My current research is focused on conducting laboratory experiments on Lost River suckers to try and determine what is preventing juvenile suckers from reaching maturity. It was hypothesized that age-0 juvenile sucker mortality increased due to the ingestion of prey items that had high levels of microcystin. Using laboratory experiments, I have been looking into the effects of ingested microcystin on Lost River suckers. Future laboratory experiments will focus on potential nutritional shortcomings, environmental effects on growth and condition of suckers, and effects of environmental contaminant on suckers. These laboratory experiments are fueled by observations in the field and provide supporting evidence for field and mesocosm studies.
Professional Experience
2011 to Present - Fishery Biologist, U.S. Geological Survey, Western Fisheries Research Center, Klamath Falls Field Station, Klamath Falls, OR
1999-2011 - Fishery Biologist, U.S. Geological Survey, Western Fisheries Research Center, Dixon Duty Station, Dixon, CA
1997-1999 - Biological Science Technician (Fisheries), U.S. Geological Survey, Western Fisheries Research Center, Dixon Duty Station, Dixon, CA
1995-1997 - Graduate Research Assistant, Humboldt State University Foundation, Arcata, CA
1989-1995 - Biological Science Technician (Fisheries), U.S. Fish and Wildlife Service/ National Biological Survey, National Fisheries Contaminant Research Center, Dixon Field Station, Dixon, CA
Education and Certifications
M.S. Fishery Biology. Humboldt State University, Arcata, CA
B.S. Wildlife and Fisheries Biology. University of California-Davis, Davis, CA
Affiliations and Memberships*
American Fisheries Society
Honors and Awards
Secretary Cal-Neva Chapter American Fishery Society 2011
Science and Products
Pahranagat roundtail chub (Gila robusta) - KFFS
Tribal Collaboration - KFFS
Bull Trout (Salvelinus confluentus) - KFFS
Upper Klamath Lake and Clear Lake sampling for suckers from 2015 through 2022
Marginal increment and age data from fin rays of endangered suckers
Data from 2018 Experiment on Effects of Temperature on Survival and Growth of Juvenile Lost River Suckers (Deltistes luxatus) naturally exposed to Ichthyobodo spp
Data for Trap Net Captured Juvenile Lost River and Shortnose Suckers from Upper Klamath Lake, Oregon
Desert pupfish, adult male, in seine net with other fish. Captured from the USGS/BOR Shallow Habitat Project experimental ponds on the southeast side of the Salton Sea, CA.
Desert pupfish, adult female, in seine net with other fish. Captured from the USGS/BOR Shallow Habitat Project experimental ponds on the southeast side of the Salton Sea, CA.
Desert pupfish, adult female, in seine net with other fish. Captured from the USGS/BOR Shallow Habitat Project experimental ponds on the southeast side of the Salton Sea, CA.
Sunset on the southeast side of the Salton Sea, CA.
Sunset on the southeast side of the Salton Sea, CA.
Growth, survival, and cohort formation of juvenile Lost River (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California—2021–22 monitoring report
Validating a non-lethal method of aging endangered juvenile Lost River and Shortnose Suckers
Growth, survival, and cohort formation of juvenile Lost River (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California—2020 monitoring report
Distribution of bull trout (Salvelinus confluentus) in conjunction with habitat and trout assemblages in creeks within the Klamath Basin, Oregon 2010–16
Water quality, instream habitat, and the distribution of suckers in the upper Lost River watershed of Oregon and California, summer 2018
Effect of temperature on survival of Lost River Suckers with a natural infection of Ichthyobodo spp.
Effects of harmful algal blooms and associated water-quality on endangered Lost River and shortnose suckers
Mortality of endangered juvenile Lost River Suckers associated with cyanobacteria blooms in mesocosms in Upper Klamath Lake, Oregon
Effects of microcystin-LR on juvenile Lost River suckers (Deltistes luxatus) during feeding trials, Upper Klamath Lake, Oregon, 2014−16
Examination of movements and survival of Pahranagat roundtail chub (Gila robusta jordani) in the Pahranagat River and adjacent waters, Nevada, 2014–18
Inter-annual variability in apparent relative production, survival, and growth of juvenile Lost River and shortnose suckers in Upper Klamath Lake, Oregon, 2001–15
Effects of Chiloquin Dam on spawning distribution and larval emigration of Lost River, shortnose, and Klamath largescale suckers in the Williamson and Sprague Rivers, Oregon
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Pahranagat roundtail chub (Gila robusta) - KFFS
Tribal Collaboration - KFFS
Bull Trout (Salvelinus confluentus) - KFFS
Upper Klamath Lake and Clear Lake sampling for suckers from 2015 through 2022
Marginal increment and age data from fin rays of endangered suckers
Data from 2018 Experiment on Effects of Temperature on Survival and Growth of Juvenile Lost River Suckers (Deltistes luxatus) naturally exposed to Ichthyobodo spp
Data for Trap Net Captured Juvenile Lost River and Shortnose Suckers from Upper Klamath Lake, Oregon
Desert pupfish, adult male, in seine net with other fish. Captured from the USGS/BOR Shallow Habitat Project experimental ponds on the southeast side of the Salton Sea, CA.
Desert pupfish, adult male, in seine net with other fish. Captured from the USGS/BOR Shallow Habitat Project experimental ponds on the southeast side of the Salton Sea, CA.
Desert pupfish, adult female, in seine net with other fish. Captured from the USGS/BOR Shallow Habitat Project experimental ponds on the southeast side of the Salton Sea, CA.
Desert pupfish, adult female, in seine net with other fish. Captured from the USGS/BOR Shallow Habitat Project experimental ponds on the southeast side of the Salton Sea, CA.
Sunset on the southeast side of the Salton Sea, CA.
Sunset on the southeast side of the Salton Sea, CA.
Growth, survival, and cohort formation of juvenile Lost River (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California—2021–22 monitoring report
Validating a non-lethal method of aging endangered juvenile Lost River and Shortnose Suckers
Growth, survival, and cohort formation of juvenile Lost River (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California—2020 monitoring report
Distribution of bull trout (Salvelinus confluentus) in conjunction with habitat and trout assemblages in creeks within the Klamath Basin, Oregon 2010–16
Water quality, instream habitat, and the distribution of suckers in the upper Lost River watershed of Oregon and California, summer 2018
Effect of temperature on survival of Lost River Suckers with a natural infection of Ichthyobodo spp.
Effects of harmful algal blooms and associated water-quality on endangered Lost River and shortnose suckers
Mortality of endangered juvenile Lost River Suckers associated with cyanobacteria blooms in mesocosms in Upper Klamath Lake, Oregon
Effects of microcystin-LR on juvenile Lost River suckers (Deltistes luxatus) during feeding trials, Upper Klamath Lake, Oregon, 2014−16
Examination of movements and survival of Pahranagat roundtail chub (Gila robusta jordani) in the Pahranagat River and adjacent waters, Nevada, 2014–18
Inter-annual variability in apparent relative production, survival, and growth of juvenile Lost River and shortnose suckers in Upper Klamath Lake, Oregon, 2001–15
Effects of Chiloquin Dam on spawning distribution and larval emigration of Lost River, shortnose, and Klamath largescale suckers in the Williamson and Sprague Rivers, Oregon
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government