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Fish
Cold-blooded aquatic vertebrates with fins for swimming, gills for breathing, and usually scales.
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Fish inventories (10 items)
Anadromous fish (4 items)
Diadromous fish (4 items)
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Results 21 - 30 of 54 listed alphabetically [list by similarity]
Environmental mercury mapping, modeling, and analysis [More info]
Online tools for mapping mercury data in the environment, with downloadable data from monitoring studies
Facts About Invasive Bighead and Silver Carps [More info]
Imported from China in the 1970s, these fish thrive in the Mississippi and Missouri river systems and have become undesirable pests, competing with native fish species.
PDF February 2012 workshop jumpstarts the Mekong Fish Monitoring Network [More info]
An international workshop helps to begin collaboration on fish monitoring in southeast Asia.
Fish passage through dams in large temperate floodplain rivers: an annotated bibliography [More info]
Report describes an electronic database of annotated citations relevant to fish passage through dams. Document may be searched using the search form or downloaded as an Endnote, Microsoft Word, or WordPerfect
Hydrologic studies in the Upper Klamath Basin, Oregon [More info]
Overview of Klamath ecological research and links to USGS Klamath studies on ground water, nutrients, sediment oxygen demand, and fish response to water quality, sucker ecology, publications, bibliographies, and data.
PDF Illustrated field guide for assessing external and internal anomalies in fish [More info]
Links to PDF version of the field guide.
PDF Impacts of Low-Flow and Stream-Temperature Changes on Endangered Atlantic Salmon - Current Research [More info]
Recent physical changes over time, including trends toward earlier snowmelt runoff, decreasing river ice, and increasing spring water temperatures, may affect salmon populations; we want to know how important these effects are.
Impounded river systems [More info]
Article from Status and Trends of the Nation's Biological Resources on the serious impacts to river systems due to damming and flow regulation, and rehabilitation, monitoring, and research on such rivers.
Invasive Species Program -- Snakeheads, aquatic invaders [More info]
Snakeheads, aggressive airbreathing freshwater fishes that are not native to North America, are considered injurious to certain native North American fish and other aquatic wildlife.
Long Term Resource Monitoring Program (Upper Mississippi River area): sampling data [More info]
Downloadable data and other information about the sampling programs used in long-term monitoring of the upper Mississippi River area.
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