Courtney Grady
Courtney is a laboratory technician at the Marrowstone Marine Field Station.
Courtney provides technical support at the field station in wild fish disease experiments and field surveys.
Professional Experience
2023 - Present: Biological Laboratory Technician, USGS Marrowstone Marine Field Station, Nordland, WA
2020 – 2023: Laboratory Technologist, Labcorp, Overland Park, KS and Phoenix, AZ
2014 – Fisheries Biologist 1, Pacific States Marine Fisheries Commission, North Bonneville, WA
2011 – 2013: Rural Aquaculture Promotion Extension Agent, US Peace Corps, Mbwindi, Zambia
2007 – 2011: Biological Laboratory Technician, USGS Marrowstone Marine Field Station, Nordland, WA
2004 – 2007: Research Assistant, Seattle Biomedical Research Institute, Seattle, WA
Education and Certifications
B.S. Biology, Seattle Pacific University, Seattle, WA
Science and Products
Filter Total Items: 15
Susceptibility of Pacific herring to viral hemorrhagic septicemia is influenced by diet Susceptibility of Pacific herring to viral hemorrhagic septicemia is influenced by diet
Groups of specific-pathogen-free Pacific herring Clupea pallasii were highly susceptible to infection by viral hemorrhagic septicemia virus (VHSV); however, the level of mortality was influenced by diet during the 40–71 d before, during, and after the first exposure to the virus. Cumulative mortality was highest among the herring maintained on an experimental soy-based pellet...
Authors
Joshua Beaulaurier, N. Bickford, J.L. Gregg, C.A. Grady, A.L. Gannam, J. R. Winton, P.K. Hershberger
Efficacy of a glycoprotein DNA vaccine against viral haemorrhagic septicaemia (VHS) in Pacific herring, Clupea pallasii Valenciennes Efficacy of a glycoprotein DNA vaccine against viral haemorrhagic septicaemia (VHS) in Pacific herring, Clupea pallasii Valenciennes
Viral haemorrhagic septicaemia virus (VHSV) and its associated disease state, viral haemorrhagic septicaemia (VHS), is hypothesized to be a proximate factor accounting for the decline and failed recovery of Pacific herring populations in Prince William Sound, AK (Marty et al. 1998, 2003, 2010). Survivors of laboratory-induced VHSV epizootics develop resistance to subsequent viral...
Authors
L.M. Hart, Niels Lorenzen, S. E. LaPatra, C.A. Grady, S.E. Roon, J. O’Reilly, J.L. Gregg, P.K. Hershberger
Kinetics of viral load and erythrocytic inclusion body formation in pacific herring artificially infected with erythrocytic necrosis virus Kinetics of viral load and erythrocytic inclusion body formation in pacific herring artificially infected with erythrocytic necrosis virus
Viral erythrocytic necrosis (VEN) is a condition that affects marine and anadromous fish species, including herrings and salmonids, in the Atlantic and Pacific oceans. Infection is frequently associated with severe anemia and causes episodic mortality among wild and hatchery fish when accompanied by additional stressors; VEN can be presumptively diagnosed by (1) light microscopic...
Authors
Jolene A. Glenn, Eveline J. Emmenegger, Courtney A. Grady, Sean R. Roon, Jacob L. Gregg, Carla M. Conway, James R. Winton, Paul K. Hershberger
Inability to demonstrate fish-to-fish transmission of Ichthyophonus from laboratory infected Pacific herring Clupea pallasii to naïve conspecifics Inability to demonstrate fish-to-fish transmission of Ichthyophonus from laboratory infected Pacific herring Clupea pallasii to naïve conspecifics
The parasite Ichthyophonus is enzootic in many marine fish populations of the northern Atlantic and Pacific Oceans. Forage fishes are a likely source of infection for higher trophic level predators; however, the processes that maintain Ichthyophonus in forage fish populations (primarily clupeids) are not well understood. Lack of an identified intermediate host has led to the convenient...
Authors
J.L. Gregg, C.A. Grady, C.S. Friedman, P.K. Hershberger
Factors controlling the early stages of viral haemorrhagic septicaemia epizootics: Low exposure levels, virus amplification and fish-to-fish transmission Factors controlling the early stages of viral haemorrhagic septicaemia epizootics: Low exposure levels, virus amplification and fish-to-fish transmission
Viral haemorrhagic septicaemia virus, Genogroup IVa (VHSV), was highly infectious to Pacific herring, Clupea pallasii (Valenciennes), even at exposure doses occurring below the threshold of sensitivity for a standard viral plaque assay; however, further progression of the disease to a population‐level epizootic required viral amplification and effective fish‐to‐fish transmission. Among...
Authors
P.K. Hershberger, J.L. Gregg, C.A. Grady, L.M. Hart, S.R. Roon, J. R. Winton
Passive immunization of Pacific herring against viral hemorrhagic septicemia. Passive immunization of Pacific herring against viral hemorrhagic septicemia.
The plasma of Pacific herring Clupea pallasii that survived laboratory-induced viral hemorrhagic septicemia (VHS) epizootics contained humoral substances that, when injected into naive animals, conferred passive immunity against the disease. Among groups exposed to viral hemorrhagic septicemia virus (VHSV), injection of donor plasma from VHS survivors resulted in significantly greater...
Authors
P.K. Hershberger, J.L. Gregg, C.A. Grady, S. E. LaPatra, J. R. Winton
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
Filter Total Items: 15
Susceptibility of Pacific herring to viral hemorrhagic septicemia is influenced by diet Susceptibility of Pacific herring to viral hemorrhagic septicemia is influenced by diet
Groups of specific-pathogen-free Pacific herring Clupea pallasii were highly susceptible to infection by viral hemorrhagic septicemia virus (VHSV); however, the level of mortality was influenced by diet during the 40–71 d before, during, and after the first exposure to the virus. Cumulative mortality was highest among the herring maintained on an experimental soy-based pellet...
Authors
Joshua Beaulaurier, N. Bickford, J.L. Gregg, C.A. Grady, A.L. Gannam, J. R. Winton, P.K. Hershberger
Efficacy of a glycoprotein DNA vaccine against viral haemorrhagic septicaemia (VHS) in Pacific herring, Clupea pallasii Valenciennes Efficacy of a glycoprotein DNA vaccine against viral haemorrhagic septicaemia (VHS) in Pacific herring, Clupea pallasii Valenciennes
Viral haemorrhagic septicaemia virus (VHSV) and its associated disease state, viral haemorrhagic septicaemia (VHS), is hypothesized to be a proximate factor accounting for the decline and failed recovery of Pacific herring populations in Prince William Sound, AK (Marty et al. 1998, 2003, 2010). Survivors of laboratory-induced VHSV epizootics develop resistance to subsequent viral...
Authors
L.M. Hart, Niels Lorenzen, S. E. LaPatra, C.A. Grady, S.E. Roon, J. O’Reilly, J.L. Gregg, P.K. Hershberger
Kinetics of viral load and erythrocytic inclusion body formation in pacific herring artificially infected with erythrocytic necrosis virus Kinetics of viral load and erythrocytic inclusion body formation in pacific herring artificially infected with erythrocytic necrosis virus
Viral erythrocytic necrosis (VEN) is a condition that affects marine and anadromous fish species, including herrings and salmonids, in the Atlantic and Pacific oceans. Infection is frequently associated with severe anemia and causes episodic mortality among wild and hatchery fish when accompanied by additional stressors; VEN can be presumptively diagnosed by (1) light microscopic...
Authors
Jolene A. Glenn, Eveline J. Emmenegger, Courtney A. Grady, Sean R. Roon, Jacob L. Gregg, Carla M. Conway, James R. Winton, Paul K. Hershberger
Inability to demonstrate fish-to-fish transmission of Ichthyophonus from laboratory infected Pacific herring Clupea pallasii to naïve conspecifics Inability to demonstrate fish-to-fish transmission of Ichthyophonus from laboratory infected Pacific herring Clupea pallasii to naïve conspecifics
The parasite Ichthyophonus is enzootic in many marine fish populations of the northern Atlantic and Pacific Oceans. Forage fishes are a likely source of infection for higher trophic level predators; however, the processes that maintain Ichthyophonus in forage fish populations (primarily clupeids) are not well understood. Lack of an identified intermediate host has led to the convenient...
Authors
J.L. Gregg, C.A. Grady, C.S. Friedman, P.K. Hershberger
Factors controlling the early stages of viral haemorrhagic septicaemia epizootics: Low exposure levels, virus amplification and fish-to-fish transmission Factors controlling the early stages of viral haemorrhagic septicaemia epizootics: Low exposure levels, virus amplification and fish-to-fish transmission
Viral haemorrhagic septicaemia virus, Genogroup IVa (VHSV), was highly infectious to Pacific herring, Clupea pallasii (Valenciennes), even at exposure doses occurring below the threshold of sensitivity for a standard viral plaque assay; however, further progression of the disease to a population‐level epizootic required viral amplification and effective fish‐to‐fish transmission. Among...
Authors
P.K. Hershberger, J.L. Gregg, C.A. Grady, L.M. Hart, S.R. Roon, J. R. Winton
Passive immunization of Pacific herring against viral hemorrhagic septicemia. Passive immunization of Pacific herring against viral hemorrhagic septicemia.
The plasma of Pacific herring Clupea pallasii that survived laboratory-induced viral hemorrhagic septicemia (VHS) epizootics contained humoral substances that, when injected into naive animals, conferred passive immunity against the disease. Among groups exposed to viral hemorrhagic septicemia virus (VHSV), injection of donor plasma from VHS survivors resulted in significantly greater...
Authors
P.K. Hershberger, J.L. Gregg, C.A. Grady, S. E. LaPatra, J. R. Winton
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.