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Epidemiology of Fish and Wildlife Diseases: Fish

This page links to samples of genetics and genomics research from the USGS Biological Resources Discipline about the epidemiology of fish diseases.

  • Yellow color shows thiamine degradation on an agar plate of P. thiaminolyticus strain 8120.

Genetic Analysis of Pacific Salmonids in the Northeast Pacific and the Russian Far East

This U.S./Russian collaboration will investigate genetics and life histories of Kamchatka Peninsula rainbow trout and steelhead (O. mykiss), and Dolly Varden, white-spotted, and arctic char (S. malma, S. leucomaensis, and S. alpinus, respectively). Both anadromous and resident forms of these generally occur in Kamchatka rivers that are free from More...

  • Shown are an adult Siberian white spotted char, or kundza (Salvelinus leucomaensis, top), and a pre-

Ecological Genetics of Lake Clark Sockeye Salmon (Oncorhynchus nerka)

Ecological Genetics of the Lake Clark Sockeye Salmon (Oncorhynchus nerka) characterizes the population structure and genetic diversity. This issue overview aids managers in defining and prioritizing conservation units of sockeye salmon within Lake Clark National Park and Preserve.

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Conservation Genetics: Fish

This page presents samples of genetics and genomics research from the USGS Biological Resources Discipline about the conservation genetics of fish.

  • Image of a Pallid sturgeon

National Resources Monitoring Partnership (NRMP)

Natural resource managers face complex decisions that require a clear understanding of the status of wildlife populations and their habitats. Monitoring is key to making effective management decisions and evaluating the outcomes of those decisions. The goal of NRMP is to improve the accessibility of monitoring efforts to resource managers to aid More...

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National Resources Monitoring Partnership (NRMP) Newsletter

Natural Resource Monitoring Partnership (NRMP) is a collaborative effort by the natural resource management community to improve monitoring efforts in order to support effective evaluation and decision-making by sharing information on monitoring projects and protocols. The Natural Resource Monitoring Partnership was built for easy access to More...

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Cellular and Genetic Tracers of Transport Time in Groundwater Systems

Artificially maintained water levels within the lake and stresses placed upon the aquifer by well withdrawals facilitate movement of water from the lake into the local ground water system, potentially allowing contaminants to enter the aquifer from the lake. This raises national concern because similar lakeside settings exist throughout the United More...

  • Diatom image of the species Cymbella tumida.

Role of Demographic, Genetic, and Environmental Factors Influencing the Spread of Hybridization Between Native Westslope Cutthroat and Non-Native Rainbow Trout

This research project examines dispersal and several components of fitness between hybrids and non-hybridized fish. Further, scientists will examine the relationship between environmental factors and genetic and demographic characteristics of hybrid populations. The specific objectives are: (1) to compare the spawning dynamics and dispersal More...

  • Radiotagged hybrid trout

Genetic Analysis of Salmonids and Other Fishes in the Western US

As salmonid populations continue to decline in the western US, it is imperative to develop a better understanding of ecological, genetic, and biological aspects of these species. Within the broad context of the Fisheries and Aquatic Resources Program the 5-year research goals address: development of non-lethal genetic procedures for identification More...

  • Bridgecreek, a tributary of the Stehekin river.