Fish & Wildlife Disease: Wild Fish Diseases
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By Biological Threats and Invasive Species Research Program
September 29, 2022
USGS fish disease research is focused on developing advanced tools for rapid disease detection and control. USGS scientists are improving our understanding of the factors controlling the epidemiology of aquatic animal diseases and the impact of disease on wild fish populations. Our scientists are also investigating the effects of warming waters, drought, and invasive species on fish disease dynamics.
Wild Fish Disease Research
Wild Fish Disease Research
Explore our science using the data below.
Recent publications related to USGS fish disease research are listed below. A complete listing of USGS fish disease publications is available from the button below.
Filter Total Items: 48
Comparative virulence of spring viremia of carp virus (SVCV) genotypes in two koi varieties Comparative virulence of spring viremia of carp virus (SVCV) genotypes in two koi varieties
Spring viremia of carp virus (SVCV), is a lethal freshwater pathogen of cyprinid fish, and Cyprinus carpio koi is a primary host species. The virus was initially described in the 1960s after outbreaks occurred in Europe, but a global expansion of SVCV has been ongoing since the late 1990s. Genetic typing of SVCV isolates separates them into 4 genotypes that are correlated with geographic...
Authors
Eveline J. Emmenegger, Emma K. Bueren, Peng Jia, Noble Hendrix, Hong Liu
A novel approach for directly incorporating disease into fish stock assessment: A case study with seroprevalence data A novel approach for directly incorporating disease into fish stock assessment: A case study with seroprevalence data
When estimating mortality from disease with fish population models, common disease surveillance data such as infection prevalence are not always informative, especially for fast-acting diseases that may go unobserved in infrequently sampled populations. In these cases, seroprevalence — the proportion of fish with measurable antibody levels in their blood — may be more informative. In...
Authors
John T. Trochta, Maya Groner, Paul Hershberger, Trevor A. Branch
Effects of stocking density on stress response and susceptibility to infectious hematopoietic necrosis virus in rainbow trout Effects of stocking density on stress response and susceptibility to infectious hematopoietic necrosis virus in rainbow trout
The goals of this study were to examine the effect of stocking density on the stress response and disease susceptibility in juvenile rainbow trout (Oncorhynchus mykiss). Fish were sorted into one of 2 stocking densities (high density "HD", 20-40 kg/m3) or (low density, "LD", 4-8 kg/m3) and 3 stress indices (cortisol levels in serum and water, and neutrophil: lymphocyte (N:L) ratios from...
Authors
Jenna J Klug, Piper M Treuting, George E. Sanders, James Winton, Gael Kurath
Development of a multiplex fluorescence in situ hybridization assay to identify coinfections in young-of-the-year smallmouth bass Development of a multiplex fluorescence in situ hybridization assay to identify coinfections in young-of-the-year smallmouth bass
Histopathological assessments of young-of-the-year (age-0) Smallmouth Bass Micropterus dolomieu in the Susquehanna River drainage identified a high prevalence of the myxozoan Myxobolus inornatus. This myxozoan infects the connective tissue of the muscle below the skin but is sometimes observed in the esophagus and buccal cavity. In some instances, shallow infections cause breaks in the...
Authors
Heather L. Walsh, Vicki S. Blazer, Patricia M. Mazik
miR133b microinjection during early development targets transcripts of sardiomyocyte ion channels and induces oil-like cardiotoxicity in zebrafish (Danio rerio) embryos miR133b microinjection during early development targets transcripts of sardiomyocyte ion channels and induces oil-like cardiotoxicity in zebrafish (Danio rerio) embryos
Previous studies have shown that altered expression of a family of small noncoding RNAs (microRNAs, or miRs) regulates the expression of downstream mRNAs and is associated with diseases and developmental disorders. miR133b is highly expressed in mammalian cardiac and skeletal muscle, and aberrant expression is associated with cardiac disorders and electrophysiological changes in...
Authors
Justin Blaine Greer, Jason T. Magnuson, Victoria McGruer, Le Qian, Subham Dasgupta, David C. Volz, Daniel Schlenk
Targeted and non-targeted analysis of young-of-year smallmouth bass using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry Targeted and non-targeted analysis of young-of-year smallmouth bass using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry
Smallmouth bass in the Susquehanna River Basin, Chesapeake Bay Watershed, USA, have been exhibiting clinical signs of disease and reproductive endocrine disruption (e.g., intersex, male plasma vitellogenin) for over fifteen years. Previous histological and targeted chemical analyses have identified infectious agents and pollutants in fish tissues including organic contaminants, mercury...
Authors
Paige Teehan, Megan K. Schall, Vicki S. Blazer, Frank L Dorman
USGS fish disease research is focused on developing advanced tools for rapid disease detection and control. USGS scientists are improving our understanding of the factors controlling the epidemiology of aquatic animal diseases and the impact of disease on wild fish populations. Our scientists are also investigating the effects of warming waters, drought, and invasive species on fish disease dynamics.
Wild Fish Disease Research
Wild Fish Disease Research
Explore our science using the data below.
Recent publications related to USGS fish disease research are listed below. A complete listing of USGS fish disease publications is available from the button below.
Filter Total Items: 48
Comparative virulence of spring viremia of carp virus (SVCV) genotypes in two koi varieties Comparative virulence of spring viremia of carp virus (SVCV) genotypes in two koi varieties
Spring viremia of carp virus (SVCV), is a lethal freshwater pathogen of cyprinid fish, and Cyprinus carpio koi is a primary host species. The virus was initially described in the 1960s after outbreaks occurred in Europe, but a global expansion of SVCV has been ongoing since the late 1990s. Genetic typing of SVCV isolates separates them into 4 genotypes that are correlated with geographic...
Authors
Eveline J. Emmenegger, Emma K. Bueren, Peng Jia, Noble Hendrix, Hong Liu
A novel approach for directly incorporating disease into fish stock assessment: A case study with seroprevalence data A novel approach for directly incorporating disease into fish stock assessment: A case study with seroprevalence data
When estimating mortality from disease with fish population models, common disease surveillance data such as infection prevalence are not always informative, especially for fast-acting diseases that may go unobserved in infrequently sampled populations. In these cases, seroprevalence — the proportion of fish with measurable antibody levels in their blood — may be more informative. In...
Authors
John T. Trochta, Maya Groner, Paul Hershberger, Trevor A. Branch
Effects of stocking density on stress response and susceptibility to infectious hematopoietic necrosis virus in rainbow trout Effects of stocking density on stress response and susceptibility to infectious hematopoietic necrosis virus in rainbow trout
The goals of this study were to examine the effect of stocking density on the stress response and disease susceptibility in juvenile rainbow trout (Oncorhynchus mykiss). Fish were sorted into one of 2 stocking densities (high density "HD", 20-40 kg/m3) or (low density, "LD", 4-8 kg/m3) and 3 stress indices (cortisol levels in serum and water, and neutrophil: lymphocyte (N:L) ratios from...
Authors
Jenna J Klug, Piper M Treuting, George E. Sanders, James Winton, Gael Kurath
Development of a multiplex fluorescence in situ hybridization assay to identify coinfections in young-of-the-year smallmouth bass Development of a multiplex fluorescence in situ hybridization assay to identify coinfections in young-of-the-year smallmouth bass
Histopathological assessments of young-of-the-year (age-0) Smallmouth Bass Micropterus dolomieu in the Susquehanna River drainage identified a high prevalence of the myxozoan Myxobolus inornatus. This myxozoan infects the connective tissue of the muscle below the skin but is sometimes observed in the esophagus and buccal cavity. In some instances, shallow infections cause breaks in the...
Authors
Heather L. Walsh, Vicki S. Blazer, Patricia M. Mazik
miR133b microinjection during early development targets transcripts of sardiomyocyte ion channels and induces oil-like cardiotoxicity in zebrafish (Danio rerio) embryos miR133b microinjection during early development targets transcripts of sardiomyocyte ion channels and induces oil-like cardiotoxicity in zebrafish (Danio rerio) embryos
Previous studies have shown that altered expression of a family of small noncoding RNAs (microRNAs, or miRs) regulates the expression of downstream mRNAs and is associated with diseases and developmental disorders. miR133b is highly expressed in mammalian cardiac and skeletal muscle, and aberrant expression is associated with cardiac disorders and electrophysiological changes in...
Authors
Justin Blaine Greer, Jason T. Magnuson, Victoria McGruer, Le Qian, Subham Dasgupta, David C. Volz, Daniel Schlenk
Targeted and non-targeted analysis of young-of-year smallmouth bass using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry Targeted and non-targeted analysis of young-of-year smallmouth bass using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry
Smallmouth bass in the Susquehanna River Basin, Chesapeake Bay Watershed, USA, have been exhibiting clinical signs of disease and reproductive endocrine disruption (e.g., intersex, male plasma vitellogenin) for over fifteen years. Previous histological and targeted chemical analyses have identified infectious agents and pollutants in fish tissues including organic contaminants, mercury...
Authors
Paige Teehan, Megan K. Schall, Vicki S. Blazer, Frank L Dorman