Carla M Conway
Carla is a Biological Science Laboratory Technician (Microbiology) at the Western Fisheries Research Center.
Science and Products
Filter Total Items: 35
Health and condition of endangered young-of-the-year Lost River and Shortnose suckers relative to water quality in Upper Klamath Lake, Oregon, 2014–2015
Most mortality of endangered Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) suckers in Upper Klamath Lake, Oregon, occurs within the first year of life. Juvenile suckers in Clear Lake Reservoir, California, survive longer and may even recruit to the spawning populations. In a previous (2013–2014) study, the health and condition of juvenile suckers and the dynamics of water
Authors
Summer M. Burdick, Carla M. Conway, Diane G. Elliott, Marshal S. Hoy, Amari Dolan-Caret, Carl O. Ostberg
Pufferfish mortality associated with novel polar marine toxins in Hawaii
Fish die-offs are important signals in tropical marine ecosystems. In 2010, a mass mortality of pufferfish in Hawaii (USA) was dominated by Arothron hispidus showing aberrant neurological behaviors. Using pathology, toxinology, and field surveys, we implicated a series of novel, polar, marine toxins as a likely cause of this mass mortality. Our findings are striking in that (1) a marine toxin was
Authors
Thierry M. Work, Perer D. R. Moeller, Kevin R. Beauchesne, Julie Dagenais, Renee Breeden, Robert Rameyer, Willliam A. Walsh, Melanie Abecassis, Donald R. Kobayashi, Carla M. Conway, James Winton
Molecular characterization of a novel orthomyxovirus from rainbow and steelhead trout (Oncorhynchus mykiss)
A novel virus, rainbow trout orthomyxovirus (RbtOV), was isolated in 1997 and again in 2000 from commercially-reared rainbow trout (Oncorhynchus mykiss) in Idaho, USA. The virus grew optimally in the CHSE-214 cell line at 15°C producing a diffuse cytopathic effect; however, juvenile rainbow trout exposed to cell culture-grown virus showed no mortality or gross pathology. Electron microscopy of pre
Authors
William N. Batts, Scott E. LaPatra, Ryan Katona, Eric Leis, Terry Fei Fan Ng, Marine S.O. Bruieuc, Rachel Breyta, Maureen K. Purcell, Thomas B. Waltzek, Eric Delwart, James Winton
Survival, movement, and health of hatchery-raised juvenile Lost River suckers within a mesocosm in Upper Klamath Lake, Oregon
The recovery of endangered Lost River suckers (Deltistes luxatus) in Upper Klamath Lake is limited by poor juvenile survival and failure to recruit into the adult population. Poor water quality, degradation of rearing habitat, and toxic levels of microcystin are hypothesized to contribute to low juvenile survival. Studies of wild juvenile suckers are limited in that capture rates are low and compr
Authors
Danielle M. Hereford, Summer M. Burdick, Diane G. Elliott, Amari Dolan-Caret, Carla M. Conway, Alta C. Harris
Infecting Pacific Herring with Ichthyophonus sp. in the laboratory
The protistan parasite Ichthyophonus sp. occurs in coastal populations of Pacific Herring Clupea pallasii throughout the northeast Pacific region, but the route(s) by which these planktivorous fish become infected is unknown. Several methods for establishing Ichthyophonus infections in laboratory challenges were examined. Infections were most effectively established after intraperitoneal (IP) inje
Authors
Paul Hershberger, Lucas Hart, Ashley MacKenzie, M.L. Yanney, Carla M. Conway, Diane G. Elliott
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 productive lines of
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
Characterization of a novel hepadnavirus in the white sucker (Catostomus commersonii) from the Great Lakes Region of the USA
The white sucker Catostomus commersonii is a freshwater teleost often utilized as a resident sentinel. Here, we sequenced the full genome of a hepatitis B-like virus that infects white suckers from the Great Lakes Region of the USA. Dideoxysequencing confirmed the white sucker hepatitis B virus (WSHBV) has a circular genome (3542 bp) with the prototypical codon organization of hepadnaviruses. Elec
Authors
Cassidy M. Hahn, Luke R. Iwanowicz, Robert S. Cornman, Carla M. Conway, James R. Winton, Vicki S. Blazer
Experimental infection of six North American fish species with the North Carolina strain of spring Viremia of Carp Virus
Spring viremia of carp virus (SVCV) is a rhabdoviral pathogen associated with disease outbreaks in cultured and wild fish worldwide. Common carp (Cyprinus carpio carp), and koi (C. carpio koi) suffer the highest mortalities from SVCV infections, while other cyprinid fish species have varying susceptibility. Although salmonid fish typically are considered refractory to infection by SVCV, there have
Authors
Eveline J. Emmenegger, George E. Sanders, Carla M. Conway, Fred P. Binkowski, James R. Winton, Gael Kurath
Testing of candidate non-lethal sampling methods for detection of Renibacterium salmoninarum in juvenile Chinook salmon Oncorhynchus tshawytscha
Non-lethal pathogen testing can be a useful tool for fish disease research and management. Our research objectives were to determine if (1) fin clips, gill snips, surface mucus scrapings, blood draws, or kidney biopsies could be obtained non-lethally from 3 to 15 g Chinook salmon Oncorhynchus tshawytscha, (2) non-lethal samples could accurately discriminate between fish exposed to the bacterial ki
Authors
Diane G. Elliott, Constance L. McKibben, Carla M. Conway, Maureen K. Purcell, Dorothy M. Chase, Lynn M. Applegate
Persistence of external signs in Pacific herring Clupea pallasii Valenciennes with ichthyophoniasis
The progression of external signs of Ichthyophonus infection in Pacific herring Clupea pallasii Valenciennes was highly variable and asynchronous after intraperitoneal injection with pure parasite preparations; however, external signs generally persisted through the end of the study (429 days post-exposure). Observed signs included papules, erosions and ulcers. The prevalence of external signs pla
Authors
Lucas M. Hart, Carla M. Conway, Diane G. Elliott, Paul K. Hershberger
Detection of Ichthyophonus by chromogenic in situ hybridization
Ichthyophonus hoferi (Plehn & Mulsow 1911) is a protistan parasite in the class Mesomycetozoea that infects a large range of marine and freshwater fish (Mendoza, Taylor & Ajello 2002; McVicar 2011). The broad host and geographic range, which includes both fresh and marine waters of the Northern and Southern Hemispheres, combined with a lack of distinguishing morphological characteristics, have pro
Authors
Carla M. Conway, Maureen K. Purcell, Diane G. Elliott, Paul K. Hershberger
Effects of Renibacterium salmoninarum on olfactory organs of Chinook salmon (Oncorhynchus tshawytscha) marked with coded wire tags
Bacterial kidney disease (BKD) caused by Renibacterium salmoninarum can cause significant morbidity and mortality in Chinook salmon (Oncorhynchus tshawytscha), particularly in Chinook salmon of the stream (spring) life history type, which migrate to sea as yearlings rather than subyearlings. R. salmoninarum can be transmitted vertically from the female parent to the progeny in association with the
Authors
Diane G. Elliott, Carla M. Conway
Science and Products
Filter Total Items: 35
Health and condition of endangered young-of-the-year Lost River and Shortnose suckers relative to water quality in Upper Klamath Lake, Oregon, 2014–2015
Most mortality of endangered Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) suckers in Upper Klamath Lake, Oregon, occurs within the first year of life. Juvenile suckers in Clear Lake Reservoir, California, survive longer and may even recruit to the spawning populations. In a previous (2013–2014) study, the health and condition of juvenile suckers and the dynamics of water
Authors
Summer M. Burdick, Carla M. Conway, Diane G. Elliott, Marshal S. Hoy, Amari Dolan-Caret, Carl O. Ostberg
Pufferfish mortality associated with novel polar marine toxins in Hawaii
Fish die-offs are important signals in tropical marine ecosystems. In 2010, a mass mortality of pufferfish in Hawaii (USA) was dominated by Arothron hispidus showing aberrant neurological behaviors. Using pathology, toxinology, and field surveys, we implicated a series of novel, polar, marine toxins as a likely cause of this mass mortality. Our findings are striking in that (1) a marine toxin was
Authors
Thierry M. Work, Perer D. R. Moeller, Kevin R. Beauchesne, Julie Dagenais, Renee Breeden, Robert Rameyer, Willliam A. Walsh, Melanie Abecassis, Donald R. Kobayashi, Carla M. Conway, James Winton
Molecular characterization of a novel orthomyxovirus from rainbow and steelhead trout (Oncorhynchus mykiss)
A novel virus, rainbow trout orthomyxovirus (RbtOV), was isolated in 1997 and again in 2000 from commercially-reared rainbow trout (Oncorhynchus mykiss) in Idaho, USA. The virus grew optimally in the CHSE-214 cell line at 15°C producing a diffuse cytopathic effect; however, juvenile rainbow trout exposed to cell culture-grown virus showed no mortality or gross pathology. Electron microscopy of pre
Authors
William N. Batts, Scott E. LaPatra, Ryan Katona, Eric Leis, Terry Fei Fan Ng, Marine S.O. Bruieuc, Rachel Breyta, Maureen K. Purcell, Thomas B. Waltzek, Eric Delwart, James Winton
Survival, movement, and health of hatchery-raised juvenile Lost River suckers within a mesocosm in Upper Klamath Lake, Oregon
The recovery of endangered Lost River suckers (Deltistes luxatus) in Upper Klamath Lake is limited by poor juvenile survival and failure to recruit into the adult population. Poor water quality, degradation of rearing habitat, and toxic levels of microcystin are hypothesized to contribute to low juvenile survival. Studies of wild juvenile suckers are limited in that capture rates are low and compr
Authors
Danielle M. Hereford, Summer M. Burdick, Diane G. Elliott, Amari Dolan-Caret, Carla M. Conway, Alta C. Harris
Infecting Pacific Herring with Ichthyophonus sp. in the laboratory
The protistan parasite Ichthyophonus sp. occurs in coastal populations of Pacific Herring Clupea pallasii throughout the northeast Pacific region, but the route(s) by which these planktivorous fish become infected is unknown. Several methods for establishing Ichthyophonus infections in laboratory challenges were examined. Infections were most effectively established after intraperitoneal (IP) inje
Authors
Paul Hershberger, Lucas Hart, Ashley MacKenzie, M.L. Yanney, Carla M. Conway, Diane G. Elliott
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 productive lines of
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
Characterization of a novel hepadnavirus in the white sucker (Catostomus commersonii) from the Great Lakes Region of the USA
The white sucker Catostomus commersonii is a freshwater teleost often utilized as a resident sentinel. Here, we sequenced the full genome of a hepatitis B-like virus that infects white suckers from the Great Lakes Region of the USA. Dideoxysequencing confirmed the white sucker hepatitis B virus (WSHBV) has a circular genome (3542 bp) with the prototypical codon organization of hepadnaviruses. Elec
Authors
Cassidy M. Hahn, Luke R. Iwanowicz, Robert S. Cornman, Carla M. Conway, James R. Winton, Vicki S. Blazer
Experimental infection of six North American fish species with the North Carolina strain of spring Viremia of Carp Virus
Spring viremia of carp virus (SVCV) is a rhabdoviral pathogen associated with disease outbreaks in cultured and wild fish worldwide. Common carp (Cyprinus carpio carp), and koi (C. carpio koi) suffer the highest mortalities from SVCV infections, while other cyprinid fish species have varying susceptibility. Although salmonid fish typically are considered refractory to infection by SVCV, there have
Authors
Eveline J. Emmenegger, George E. Sanders, Carla M. Conway, Fred P. Binkowski, James R. Winton, Gael Kurath
Testing of candidate non-lethal sampling methods for detection of Renibacterium salmoninarum in juvenile Chinook salmon Oncorhynchus tshawytscha
Non-lethal pathogen testing can be a useful tool for fish disease research and management. Our research objectives were to determine if (1) fin clips, gill snips, surface mucus scrapings, blood draws, or kidney biopsies could be obtained non-lethally from 3 to 15 g Chinook salmon Oncorhynchus tshawytscha, (2) non-lethal samples could accurately discriminate between fish exposed to the bacterial ki
Authors
Diane G. Elliott, Constance L. McKibben, Carla M. Conway, Maureen K. Purcell, Dorothy M. Chase, Lynn M. Applegate
Persistence of external signs in Pacific herring Clupea pallasii Valenciennes with ichthyophoniasis
The progression of external signs of Ichthyophonus infection in Pacific herring Clupea pallasii Valenciennes was highly variable and asynchronous after intraperitoneal injection with pure parasite preparations; however, external signs generally persisted through the end of the study (429 days post-exposure). Observed signs included papules, erosions and ulcers. The prevalence of external signs pla
Authors
Lucas M. Hart, Carla M. Conway, Diane G. Elliott, Paul K. Hershberger
Detection of Ichthyophonus by chromogenic in situ hybridization
Ichthyophonus hoferi (Plehn & Mulsow 1911) is a protistan parasite in the class Mesomycetozoea that infects a large range of marine and freshwater fish (Mendoza, Taylor & Ajello 2002; McVicar 2011). The broad host and geographic range, which includes both fresh and marine waters of the Northern and Southern Hemispheres, combined with a lack of distinguishing morphological characteristics, have pro
Authors
Carla M. Conway, Maureen K. Purcell, Diane G. Elliott, Paul K. Hershberger
Effects of Renibacterium salmoninarum on olfactory organs of Chinook salmon (Oncorhynchus tshawytscha) marked with coded wire tags
Bacterial kidney disease (BKD) caused by Renibacterium salmoninarum can cause significant morbidity and mortality in Chinook salmon (Oncorhynchus tshawytscha), particularly in Chinook salmon of the stream (spring) life history type, which migrate to sea as yearlings rather than subyearlings. R. salmoninarum can be transmitted vertically from the female parent to the progeny in association with the
Authors
Diane G. Elliott, Carla M. Conway