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
Filter Total Items: 17
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Filter Total Items: 41
Predation on larval suckers in the Williamson River Delta revealed by molecular genetic assays—A pilot study Predation on larval suckers in the Williamson River Delta revealed by molecular genetic assays—A pilot study
Predation of endangered Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) during larval egress to Upper Klamath Lake from the Williamson River is poorly understood but may be an important factor limiting recruitment into adult spawning populations. Native and non-native piscivores are abundant in nursery wetland habitat, but larval predation has not...
Authors
Danielle M. Hereford, Carl O. Ostberg, Summer M. Burdick
Health and condition of endangered juvenile Lost River and shortnose suckers relative to water quality and fish assemblages in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California Health and condition of endangered juvenile Lost River and shortnose suckers relative to water quality and fish assemblages in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California
Executive Summary Most mortality of endangered Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) suckers in Upper Klamath Lake, Oregon, appears to occur within the first year of life. However, juvenile suckers in Clear Lake Reservoir, California, appear to survive longer and may even recruit to the spawning populations. Our goal in this study was to develop...
Authors
Summer M. Burdick, Diane G. Elliott, Carl O. Ostberg, Carla M. Conway, Amari Dolan-Caret, Marshal S. Hoy, Kevin P. Feltz, Kathy R. Echols
Hybridization between Yellowstone cutthroat trout and rainbow trout alters the expression of muscle growth-related genes and their relationships with growth patterns Hybridization between Yellowstone cutthroat trout and rainbow trout alters the expression of muscle growth-related genes and their relationships with growth patterns
Hybridization creates novel gene combinations that may generate important evolutionary novelty, but may also reduce existing adaptation by interrupting inherent biological processes, such as genotype-environment interactions. Hybridization often causes substantial change in patterns of gene expression, which, in turn, may cause phenotypic change. Rainbow trout (Oncorhynchus mykiss) and...
Authors
Carl O. Ostberg, Dorothy M. Chase, Lorenz Hauser
Development of 20 TaqMan assays differentiating the endangered shortnose and Lost River suckers Development of 20 TaqMan assays differentiating the endangered shortnose and Lost River suckers
Accurate species identification is vital to conservation and management of species at risk. Species identification is challenging when taxa express similar phenotypic characters and form hybrids, for example the endangered shortnose sucker (Chasmistes brevirostris) and Lost River sucker (Deltistes luxatus). Here, we developed 20 Taqman assays that differentiate these species (19 nuclear...
Authors
Marshal S. Hoy, Carl O. Ostberg
Chromosome rearrangements, recombination suppression, and limited segregation distortion in hybrids between Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) and rainbow trout (O. mykiss) Chromosome rearrangements, recombination suppression, and limited segregation distortion in hybrids between Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) and rainbow trout (O. mykiss)
Background Introgressive hybridization is an important evolutionary process that can lead to the creation of novel genome structures and thus potentially new genetic variation for selection to act upon. On the other hand, hybridization with introduced species can threaten native species, such as cutthroat trout (Oncorhynchus clarkii) following the introduction of rainbow trout (O. mykiss...
Authors
Carl O. Ostberg, Lorenz Hauser, Victoria L. Pritchard, John C. Garza, Kerry A. Naish
Spatial segregation of spawning habitat limits hybridization between sympatric native Steelhead and Coastal Cutthroat Trout Spatial segregation of spawning habitat limits hybridization between sympatric native Steelhead and Coastal Cutthroat Trout
Native Coastal Cutthroat Trout Oncorhynchus clarkii clarkii and Coastal Steelhead O. mykiss irideus hybridize naturally in watersheds of the Pacific Northwest yet maintain species integrity. Partial reproductive isolation due to differences in spawning habitat may limit hybridization between these species, but this process is poorly understood. We used a riverscape approach to determine...
Authors
T.W. Buehrens, J. Glasgow, Carl O. Ostberg, T.P. Quinn
Non-USGS Publications**
Ristow, S.S., L.D. Grabowski, C.O. Ostberg, B. Robison, and G.H. Thorgaard. 1998. Development of long-term cell lines from homozygous clones of rainbow trout. Journal of Aquatic Animal Health 10(1): 75-82. DOI: 10.1577/1548-8667(1998)010<0075:DOLTCL>2.0.CO;2.
Peek, A.S., P.A. Wheeler, C.O. Ostberg, and G.H. Thorgaard. 1997. A minichromosome carrying a pigmentation gene and brook trout DNA sequences in transgenic rainbow trout. Genome 40(5): 594-599. DOI: 10.1139/g97-778.
**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
Filter Total Items: 17
No Result Found
Filter Total Items: 41
Predation on larval suckers in the Williamson River Delta revealed by molecular genetic assays—A pilot study Predation on larval suckers in the Williamson River Delta revealed by molecular genetic assays—A pilot study
Predation of endangered Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) during larval egress to Upper Klamath Lake from the Williamson River is poorly understood but may be an important factor limiting recruitment into adult spawning populations. Native and non-native piscivores are abundant in nursery wetland habitat, but larval predation has not...
Authors
Danielle M. Hereford, Carl O. Ostberg, Summer M. Burdick
Health and condition of endangered juvenile Lost River and shortnose suckers relative to water quality and fish assemblages in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California Health and condition of endangered juvenile Lost River and shortnose suckers relative to water quality and fish assemblages in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California
Executive Summary Most mortality of endangered Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) suckers in Upper Klamath Lake, Oregon, appears to occur within the first year of life. However, juvenile suckers in Clear Lake Reservoir, California, appear to survive longer and may even recruit to the spawning populations. Our goal in this study was to develop...
Authors
Summer M. Burdick, Diane G. Elliott, Carl O. Ostberg, Carla M. Conway, Amari Dolan-Caret, Marshal S. Hoy, Kevin P. Feltz, Kathy R. Echols
Hybridization between Yellowstone cutthroat trout and rainbow trout alters the expression of muscle growth-related genes and their relationships with growth patterns Hybridization between Yellowstone cutthroat trout and rainbow trout alters the expression of muscle growth-related genes and their relationships with growth patterns
Hybridization creates novel gene combinations that may generate important evolutionary novelty, but may also reduce existing adaptation by interrupting inherent biological processes, such as genotype-environment interactions. Hybridization often causes substantial change in patterns of gene expression, which, in turn, may cause phenotypic change. Rainbow trout (Oncorhynchus mykiss) and...
Authors
Carl O. Ostberg, Dorothy M. Chase, Lorenz Hauser
Development of 20 TaqMan assays differentiating the endangered shortnose and Lost River suckers Development of 20 TaqMan assays differentiating the endangered shortnose and Lost River suckers
Accurate species identification is vital to conservation and management of species at risk. Species identification is challenging when taxa express similar phenotypic characters and form hybrids, for example the endangered shortnose sucker (Chasmistes brevirostris) and Lost River sucker (Deltistes luxatus). Here, we developed 20 Taqman assays that differentiate these species (19 nuclear...
Authors
Marshal S. Hoy, Carl O. Ostberg
Chromosome rearrangements, recombination suppression, and limited segregation distortion in hybrids between Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) and rainbow trout (O. mykiss) Chromosome rearrangements, recombination suppression, and limited segregation distortion in hybrids between Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) and rainbow trout (O. mykiss)
Background Introgressive hybridization is an important evolutionary process that can lead to the creation of novel genome structures and thus potentially new genetic variation for selection to act upon. On the other hand, hybridization with introduced species can threaten native species, such as cutthroat trout (Oncorhynchus clarkii) following the introduction of rainbow trout (O. mykiss...
Authors
Carl O. Ostberg, Lorenz Hauser, Victoria L. Pritchard, John C. Garza, Kerry A. Naish
Spatial segregation of spawning habitat limits hybridization between sympatric native Steelhead and Coastal Cutthroat Trout Spatial segregation of spawning habitat limits hybridization between sympatric native Steelhead and Coastal Cutthroat Trout
Native Coastal Cutthroat Trout Oncorhynchus clarkii clarkii and Coastal Steelhead O. mykiss irideus hybridize naturally in watersheds of the Pacific Northwest yet maintain species integrity. Partial reproductive isolation due to differences in spawning habitat may limit hybridization between these species, but this process is poorly understood. We used a riverscape approach to determine...
Authors
T.W. Buehrens, J. Glasgow, Carl O. Ostberg, T.P. Quinn
Non-USGS Publications**
Ristow, S.S., L.D. Grabowski, C.O. Ostberg, B. Robison, and G.H. Thorgaard. 1998. Development of long-term cell lines from homozygous clones of rainbow trout. Journal of Aquatic Animal Health 10(1): 75-82. DOI: 10.1577/1548-8667(1998)010<0075:DOLTCL>2.0.CO;2.
Peek, A.S., P.A. Wheeler, C.O. Ostberg, and G.H. Thorgaard. 1997. A minichromosome carrying a pigmentation gene and brook trout DNA sequences in transgenic rainbow trout. Genome 40(5): 594-599. DOI: 10.1139/g97-778.
**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