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Contaminant Exposure and Effects-Terrestrial Vertebrates database (CEE-TV)

Information about ecotoxicological exposure and its effects on terrestrial vertebrates residing in estuarine and coastal habitats like the Atlantic, Gulf and Pacific Coasts, Alaska and Hawaii, as well as the Great Lakes. These vertebrates include birds, mammals, amphibians and reptiles. The data is a compilation of results from computerized More...

  • CEE-TV Database logo

Preliminary Review of Adaptation Options for Climate-Sensitive Ecosystems and Resources: Final Report, Synthesis and Assessment Product 4.4

The U.S. Environmental Protection Agency has released a report that can help reduce the potential impact of climate change on estuaries, forests, wetlands, coral reefs, and other sensitive ecosystems. The report identifies strategies to protect the environment as these changes occur. The report finds that climate change can increase the impact of More...

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USGS Workshop on Sea-Level-Rise Impacts Held in Menlo Park, California

U.S. Geological Survey (USGS)'s Western Region held an internal USGS workshop on Sea-Level-Rise Impacts on November 6-7, 2007, in Menlo Park, California. The meeting was attended by 30 scientists from four USGS disciplines (geology, geography, biology, and water) and 13 different science centers in the Western Region. In part a follow-up to the More...

  • Typical wetland in Puget Sound that now faces

Mercury Correlations Among Six Tissue Types in Waterbirds in San Francisco Bay

Mercury is a contaminant of significant concern in waterbirds because it can accumulate to high concentrations in their tissues and cause deleterious effects such as impaired reproduction. Numerous studies and monitoring programs have evaluated concentrations of mercury in waterbird tissues as an index of risk to exposure. However, no single More...

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New Zealand Mudsnail (Potamopyrgus antipodarum)

This website is an overview and species profile of the The New Zealand mudsnail (Potamopyrgus antipodarum), which is a small aquatic snail. As its name states, this species is native to freshwater lakes and streams of New Zealand. Like many organisms today, it is being incidentally carried to many locations around the world such as Europe, Asia, More...

  • Potamopyrgus antipodarum - New Zealand Mudsnail

Science Support for Wetland Restoration in the Napa-Sonoma Salt Ponds

Over the past 150 years, land reclamation activities have resulted in loss of significant amounts of tidal marshes (sometimes referred to as inter-tidal wetlands, the estuarine zone that is alternately flooded and exposed) in San Francisco Bay and the Sacramento-San Joaquin Delta (Bay/Delta). Recently, in an effort to halt or reverse the decline More...

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Effects of salinity on survival, growth and reproduction of non-native Nile tilapia (Oreochromis niloticus) from southern Mississippi

The Nile tilapia (Oreochromis niloticus) is commonly used in aquaculture worldwide. Feral populations exist in many regions where individuals escape culture and establish in natural habitats. In Mississippi, Nile tilapia are established in at least three distinct localities (fig. 1): the lower Pascagoula and Escatawpa river drainages, and a More...

  • Image of Nile tilapia (Oreochromis niloticus)

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)

Quantitative Threats Analysis for the Florida Manatee (Trichechus manatus latirostris)

This report assesses and forecasts the status of the Florida manatee population over 50 to 150 years, and examines the relative roles that different threats play in determining the status of these marine mammals, in cooperation with scientists at the Florida Fish and Wildlife Conservation Commission's Fish and Wildlife Research Institute (FWC). More...

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The pulse of the estuary: Monitoring and Managing Water Quality in the San Francisco Estuary

The purpose of The Pulse is to make the most important information available on water quality in the San Francisco Estuary accessible to water quality managers, decision-makers, scientists, and the public. An article by USGS scientists Collin Eagles-Smith and Josh Ackerman on mercury bioaccumulation and effects on birds in San Francisco Bay More...

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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