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Low-temperature tolerance of African jewelfish, (Hemichromis letourneuxi)

Because the African jewelfish has a broad salinity tolerance, scientists tested how the species low-temperature tolerance varied at three salinities: freshwater (0 ppt), brackish (10 ppt) and marine (35 ppt) in the laboratory. A field experiment was then conducted to examine the survivorship of individuals when caged in several common aquatic More...

  • Image of an African jewelfish, (Hemichromis letourneuxi)

Retrospective evaluation of Exxon Valdez oil spill Trustee Council sponsored sea otter studies

An extensive and diverse array of studies were implemented concurrent with and for several years following the Exxon Valdez oil spill to determine the acute and chronic effects to sea otters. In part, this paper describes what activities relative to sea otters should take place prior to, during, and following another spill similar to the Exxon More...

  • sea otter in ocean at time of oil spill

Contaminant Biology Program: Databases

This web page lists databases related to contaminant research across government agencies and partnerships. Many of the links include access to documented trends in the occurrence of persistent toxic chemicals that may threaten fish and wildlife resources, summaries of the results from aquatic acute toxicity tests, Avian Incident Monitoring, More...

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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

Community Structure and Adaptive Strategies of Fungi in Geothermal Soils

There are approximately 500,000 abandoned mines in the western US. Collectively, these mines pollute rivers, streams, and western reservoirs with millions of tons of metals annually that degrade aquatic habitat and water used by humans for drinking, recreation, and irrigation. However, there is great potential in decreasing or eliminating the flow More...

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