| Science In Your State |
Research Spotlight |
What's New |
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Fish Egg Disinfectant Shown to Prevent Transmission of Devastating Fish Disease:
Viral Hemorrhagic Septicemia Virus Eliminated in Treated Eggs
A disinfection solution presently used for salmon eggs also prevents transmission of the virus that causes viral hemorrhagic septicemia or VHS -- one of the most dangerous viral diseases of fish -- in other hatchery-reared fish eggs, according to new U.S. Geological Survey-led research. Effective disinfection methods are critically important to natural resource agencies that collect eggs from wild fish stocks and private aquaculture because the spread of the virus to a fish hatchery could be devastating. If VHS virus is introduced into the aquaculture industry, it could lead to trade restrictions, as well as direct economic losses from the disease. USGS and USFWS researchers tested the effectiveness of using iodophor (iodine) disinfection in walleye and northern pike eggs and found that it eliminated active virus from fertilized eggs.
(see http://pubs.usgs.gov/fs/2009/3107/).
 
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A Scientific Investigations Report: Nonnative Fishes in the Upper Mississippi River System, has just been released (http://pubs.usgs.gov/sir/2009/5176/). This report presents information on nonnative fish species observed by the Long Term Resource Monitoring Program and also gives a view on the National distribution of nonnative fish. The report highlights how LTRMP data can be leveraged with other programs to give a broad view of environmental variables. |
LTRMP Technical Report: Status and Trends of Selected Resources of the Upper Mississippi River System
 Like other large rivers, the Upper Mississippi River System (UMRS) serves a diversity of roles. The UMRS provides commercial and recreational fishing, floodplain agriculture, drinking water for many communities, an important bird migration pathway, a variety of recreational activities, and a navigation system that transports much of the country’s agricultural exports. These multiple roles present significant management challenges.
This report provides a summary of the recent status (mean and range of conditions) and trends (change in a consistent direction over time) for selected indicators of the ecological condition of the Upper Mississippi and Illinois Rivers. Data collected by the Long Term Resource Monitoring Program (LTRMP) are used to describe biological, physical, and chemical indicators of river condition over 9–12 years in most instances.
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 Geospatial and Decision Support Projects
A Decision Support System (DSS) can be defined as, "A spatially based computer application or data that assists a researcher or manager in making decisions."
LINK is the latest product from a series of DSS that uses species habitat matrices to model potential species habitat and habitat diversity. |
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Web Site: The Amphibian Research and Monitoring Initiative at UMESC
Populations of amphibians have been declining around the world. The U.S. Geological Survey is working to understand the extent and causes of such declines through the Amphibian Research and Monitoring Initiative.
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 USGS Fact Sheet: Taking the Pulse of a River System: Research on the Upper Mississippi River System
The Long Term Resource Monitoring Program (LTRMP) for the Upper Mississippi River System is the Nation’s first large-scale effort to determine the status and trends of these natural components of a large river. The mission of the LTRMP is to provide decision-makers with information to help them balance the multiple uses of the Mississippi River. |
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Web Site: Maps, Models, and Tools for Bird Conservation Planning
Scientists at the USGS Upper Midwest Environmental Sciences Center have developed statistical models for predicting and mapping habitat associations across entire ecoregions for species at risk like the cerulean warbler (Dendroica cerulea).
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 Climate Change: Ecosystem Impacts and Management Strategies for the Midwest U.S.
A symposium titled ‘Climate Change: Ecosystem Impacts and Management Strategies For the Midwest U.S’ was held at the 68th Midwest Fish & Wildlife Conference in Madison, Wisconsin, 10-11 December 2007. |
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| Long Term Resource Monitoring Program |
The Upper Midwest Environmental Sciences Center administers the Long Term Resource Monitoring Program (LTRMP) of the Environmental Management Program. The LTRMP is the Nation's largest river monitoring program with six remote state-operated field stations.
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| Data and Sampling Information
|  Related LTRMP Information
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U.S. Department of the Interior |
U.S. Geological Survey
