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Aquatic Animal Health and Disease

Center scientists perform investigations related to the health, pathogens and diseases of aquatic animals in natural freshwater, estuarine, and marine surface/deep water environments as well as aquaculture. Scientists engage in research utilizing the disciplines of pathobiology, physiology, immunology, microbiology, and molecular biology in tandem to identify pathogens and determine their impacts on host organisms and aquatic ecosystems. Further investigation, often involving controlled laboratory experimentation, helps discern the potential impacts to the host and understand whether additional environmental stressors such as climate change, contaminants, or other anthropogenic influences will affect the disease ecology in the natural environment. Additionally, we utilize these same technologies to investigate the role of invasive species in the spread of diseases. Through field investigation supplemented by laboratory based research, we are able to study emerging pathogens carried by invasive species and increase our scope of understanding of the health related impacts of these species to wildlife, domestic animals and humans.

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Mycobacteriosis among northern snakehead fish in the Potomac River

Mycobacteriosis among northern snakehead fish in the Potomac River
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Avian influenza virus in the aquatic environment: Surveillance in waterfowl habitat on the Delmarva Peninsula.

Avian influenza virus in the aquatic environment: Surveillance in waterfowl habitat on the Delmarva Peninsula.
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Avian influenza virus in the aquatic environment: Surveillance in waterfowl habitat on the Delmarva Peninsula.

Avian influenza virus in the aquatic environment: Surveillance in waterfowl habitat on the Delmarva Peninsula.
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Development of Deployable Multispectral Sensors for Monitoring

Development of Deployable Multispectral Sensors for Monitoring
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Development of Deployable Multispectral Sensors for Monitoring

Development of Deployable Multispectral Sensors for Monitoring
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Assessment of the immune status of wild and laboratory-maintained smallmouth bass

Deaths of young-of-year smallmouth bass in the Chesapeake Bay drainage has been noted since 2005. Studies of affected fish have found bacterial, viral and parasitic infections. Mixed infections suggest these fish are immunosuppressed. Understanding the role of specific pathogens and environmental factors that contribute to their presence is important but equally important is the understanding of...
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Assessment of the immune status of wild and laboratory-maintained smallmouth bass

Deaths of young-of-year smallmouth bass in the Chesapeake Bay drainage has been noted since 2005. Studies of affected fish have found bacterial, viral and parasitic infections. Mixed infections suggest these fish are immunosuppressed. Understanding the role of specific pathogens and environmental factors that contribute to their presence is important but equally important is the understanding of...
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Disease and Environmental Stress

Disease may be caused by infectious agents, nutritional imbalances, physiological or genetically-based abnormalities, and suboptimal environmental conditions, acting either alone or in combination with other factors. In many instances, environmental stressors may merge forces with an infectious agent or some other non-infectious factor to produce or exacerbate a state of disease. By studying...
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Disease and Environmental Stress

Disease may be caused by infectious agents, nutritional imbalances, physiological or genetically-based abnormalities, and suboptimal environmental conditions, acting either alone or in combination with other factors. In many instances, environmental stressors may merge forces with an infectious agent or some other non-infectious factor to produce or exacerbate a state of disease. By studying...
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Striped bass with mycobacteriosis

Striped bass (Morone saxatilis) displaying ulcerative skin lesions and chronic wasting, both typical clinical signs of mycobacteriosis, a bacterial disease that is problematic among many types of fishes around the world.
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Striped bass with mycobacteriosis

Striped bass (Morone saxatilis) displaying ulcerative skin lesions and chronic wasting, both typical clinical signs of mycobacteriosis, a bacterial disease that is problematic among many types of fishes around the world.
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Mallard ducks may serve as reservoirs of potentially zoonotic Type A influenza viruses.

Mallard duck as such as this pair may be reservoirs of Type A influenza viruses, which under some circumstances may potentially become pathogenic to waterfowl, other wildlife and even humans.
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Mallard ducks may serve as reservoirs of potentially zoonotic Type A influenza viruses.

Mallard duck as such as this pair may be reservoirs of Type A influenza viruses, which under some circumstances may potentially become pathogenic to waterfowl, other wildlife and even humans.
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Health assessment of invasive northern snakehead

The image is an investigator performing venipuncture for blood collection for health analysis of a northern snakehead fish collected from a Potomac River tributary in northern Virginia.
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Health assessment of invasive northern snakehead

The image is an investigator performing venipuncture for blood collection for health analysis of a northern snakehead fish collected from a Potomac River tributary in northern Virginia.
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Rainbow trout with bacterial lesions

This rainbow trout is displaying clinical signs of enteric redmouth disease caused by a systemic bacterial infection.
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Rainbow trout with bacterial lesions

This rainbow trout is displaying clinical signs of enteric redmouth disease caused by a systemic bacterial infection.
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