Carl Ostberg, Ph.D.
Carl is a Research Fish Biologist at the Western Fisheries Research Center.
Research Interests:
Carl’s research interests focus on evolutionary and conservation genetics. Current research projects include several studies directed at generating a greater understanding of intrinsic and extrinsic factors associated with hybridization between rainbow and cutthroat trout, using next generation sequencing to develop species-specific markers that differentiate endangered suckers endemic to the Klamath Lake basin, developing eDNA tool to evaluate recolonization extent of native and non-native fishes in the Elwha River following dam removal, and investigating morphological and genetic diversity of Dolly Varden in the Russian Far East.
Professional Experience
2008 to Present - Research Fish Biologist, U.S. Geological Survey, Western Fisheries Research Center, Seattle, WA
2004-2008 - Fishery Biologist, U.S. Geological Survey, Western Fisheries Research Center, Seattle, WA
1997-2004 - Laboratory Technician, U.S. Geological Survey, Western Fisheries Research Center, Seattle, WA
1995-1997 - Graduate Teaching Assistant, Department of Zoology, Washington State University, Pullman, WA
Education and Certifications
Ph.D. 2014. University of Washington, School of Aquatic and Fishery Sciences, Seattle, WA
M.S. 1997. Washington State University, Zoology, Pullman, WA
B.S. 1989. Washington State University, Biology, Pullman, WA
Affiliations and Memberships*
American Fisheries Society, Genetics section
Science and Products
Chromosome rearrangements, recombination suppression, and limited segregation distortion in hybrids between Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) and rainbow trout (O. mykiss)
Spatial segregation of spawning habitat limits hybridization between sympatric native Steelhead and Coastal Cutthroat Trout
Temporal genetic monitoring of hybridization between native westslope cutthroat trout and introduced rainbow trout in the Stehekin River, Washington
Dwarf char, a new form of chars (the genus Salvelinus) in Lake Kronotskoe
Growth, morphology, and developmental instability of rainbow trout, Yellowstone cutthroat trout, and four hybrid generations
Evolutionary relationships among sympatric life history forms of Dolly Varden inhabiting the landlocked Kronotsky Lake, Kamchatka, and a neighboring anadromous population
Hybridization and cytonuclear associations among native westslope cutthroat trout, introduced rainbow trout, and their hybrids within the Stehekin River drainage, North Cascades National Park
Spatial partitioning and asymmetric hybridization among sympatric coastal steelhead trout (Oncorhynchus mykiss irideus), coastal cutthroat trout (O. clarki clarki) and interspecific hybrids
Bi-parentally inherited species-specific markers identify hybridization between rainbow trout and cutthroat trout subspecies
Identification of a genetic marker that discriminates ocean-type and stream-type chinook salmon in the Columbia River basin
Novel molecular markers differentiate Oncorhynchus mykiss (rainbow trout and steelhead) and the O. clarki (cutthroat trout) subspecies
Genetic characterization of hybridization and introgression between anadromous rainbow trout (oncorhynchus mykiss irideus) and coastal cutthroat trout (o. clarki clarki)
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
Chromosome rearrangements, recombination suppression, and limited segregation distortion in hybrids between Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) and rainbow trout (O. mykiss)
Spatial segregation of spawning habitat limits hybridization between sympatric native Steelhead and Coastal Cutthroat Trout
Temporal genetic monitoring of hybridization between native westslope cutthroat trout and introduced rainbow trout in the Stehekin River, Washington
Dwarf char, a new form of chars (the genus Salvelinus) in Lake Kronotskoe
Growth, morphology, and developmental instability of rainbow trout, Yellowstone cutthroat trout, and four hybrid generations
Evolutionary relationships among sympatric life history forms of Dolly Varden inhabiting the landlocked Kronotsky Lake, Kamchatka, and a neighboring anadromous population
Hybridization and cytonuclear associations among native westslope cutthroat trout, introduced rainbow trout, and their hybrids within the Stehekin River drainage, North Cascades National Park
Spatial partitioning and asymmetric hybridization among sympatric coastal steelhead trout (Oncorhynchus mykiss irideus), coastal cutthroat trout (O. clarki clarki) and interspecific hybrids
Bi-parentally inherited species-specific markers identify hybridization between rainbow trout and cutthroat trout subspecies
Identification of a genetic marker that discriminates ocean-type and stream-type chinook salmon in the Columbia River basin
Novel molecular markers differentiate Oncorhynchus mykiss (rainbow trout and steelhead) and the O. clarki (cutthroat trout) subspecies
Genetic characterization of hybridization and introgression between anadromous rainbow trout (oncorhynchus mykiss irideus) and coastal cutthroat trout (o. clarki clarki)
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