Frederick Feyrer - California Water Science Center
I'm a Research Fish Biologist with the U.S. Geological Survey's California Water Science Center in Sacramento, California. My research program is broadly focused on applied aquatic ecology with an emphasis on fishes. In general, my work aims to fill critical data gaps needed by fisheries and water resource managers to implement effective restoration and conservation measures for imperiled species and ecosystems. In particular, my work has focused on how aquatic ecosystems function at varying spatio-temporal scales and how this influences species-habitat relationships. Recent and active study topics span the range of life history studies of threatened and endangered species to the role of climate variability and climate change on species and communities.
To learn more about my work visit my USGS Program Website or my Google Scholar Profile.
Science and Products
Hydrologic and Aquatic Ecology Studies at Clear Lake, California
The USGS California Water Science Center conducts a variety of research activities at Clear Lake, California, including surface-water monitoring and water quality and aquatic habitat studies.
Studying Threatened Fish Species in Clear Lake, CA
The Clear Lake Hitch (Lavinia exilicauda chi) population, which once flourished in great abundance, has been decimated by loss of spawning habitat, nursery areas, and the encroachment of non-native species. In order to make an informed decision, the California Water Science Center has been asked by the U.S. Fish and Wildlife Service to conduct studies into the fish’s habitat, specifically changes...
Aquatic Ecology Group
The California Water Science Center's Aquatic Ecology Group is making great strides in research and reporting.
Longfin Smelt Distribution in the Coastal Pacific Ocean
Longfin Smelt (Spirinchus thaleichthys) is a pelagic fish species found in waters along the Pacific coast, from Alaska to central California. Its complex life cycle makes it vulnerable to threats in both freshwater and at sea. Longfin Smelt is listed as a threatened species by the state of California.
Role Nutrients Play in Fish Death Rates at Rodeo Lagoon
Scientists investigate excessive nutients levels in Rodeo Lagoon that are believed to be cause of dying fish
Application of the SmeltCam to Describe Processes Influencing Delta Smelt Distribution and Movements
The California Water Science Center's "SmeltCam" helps describe processes influencing Delta Smelt distribution and movement.
Technical Support and Synthesis of Data Collected on the Health and Status of Delta Smelt
USGS scientists work to provide data to UC Davis researchers on health and growth of smelt population in Bay-Delta.
Rearing Habitats of Longfin Smelt in the Low Salinity Zone of the San Francisco Estuary
Scientists study habitats occupied by longfin smelt larvae to better understand their ecology and to inform water management operations, species management, and habitat restoration efforts.
Physical and Biological Drivers of Longfin Smelt Vertical Distribution
Research scientists study conditions that affect abundance and distributions Longfin Smelt fish population.
Abiotic and Biotic Effects on Delta Smelt Abundance and Distribution
Scientists research the importance of abiotic versus biotic (food supply) habitat features as drivers of delta smelt abundance and distribution.
Science and Products
- Science
Hydrologic and Aquatic Ecology Studies at Clear Lake, California
The USGS California Water Science Center conducts a variety of research activities at Clear Lake, California, including surface-water monitoring and water quality and aquatic habitat studies.Studying Threatened Fish Species in Clear Lake, CA
The Clear Lake Hitch (Lavinia exilicauda chi) population, which once flourished in great abundance, has been decimated by loss of spawning habitat, nursery areas, and the encroachment of non-native species. In order to make an informed decision, the California Water Science Center has been asked by the U.S. Fish and Wildlife Service to conduct studies into the fish’s habitat, specifically changes...Aquatic Ecology Group
The California Water Science Center's Aquatic Ecology Group is making great strides in research and reporting.Longfin Smelt Distribution in the Coastal Pacific Ocean
Longfin Smelt (Spirinchus thaleichthys) is a pelagic fish species found in waters along the Pacific coast, from Alaska to central California. Its complex life cycle makes it vulnerable to threats in both freshwater and at sea. Longfin Smelt is listed as a threatened species by the state of California.Role Nutrients Play in Fish Death Rates at Rodeo Lagoon
Scientists investigate excessive nutients levels in Rodeo Lagoon that are believed to be cause of dying fishApplication of the SmeltCam to Describe Processes Influencing Delta Smelt Distribution and Movements
The California Water Science Center's "SmeltCam" helps describe processes influencing Delta Smelt distribution and movement.Technical Support and Synthesis of Data Collected on the Health and Status of Delta Smelt
USGS scientists work to provide data to UC Davis researchers on health and growth of smelt population in Bay-Delta.Rearing Habitats of Longfin Smelt in the Low Salinity Zone of the San Francisco Estuary
Scientists study habitats occupied by longfin smelt larvae to better understand their ecology and to inform water management operations, species management, and habitat restoration efforts.Physical and Biological Drivers of Longfin Smelt Vertical Distribution
Research scientists study conditions that affect abundance and distributions Longfin Smelt fish population.Abiotic and Biotic Effects on Delta Smelt Abundance and Distribution
Scientists research the importance of abiotic versus biotic (food supply) habitat features as drivers of delta smelt abundance and distribution. - Data
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