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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 (6 items)
Anadromous fish (2 items)
Diadromous fish (2 items)
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Results 21 - 30 of 36 listed by similarity [list alphabetically]
Endocrine Disruption [New Window]
Curent research about endocrine disruption, the ability of environmental contaminants to affect reproductive and developmental processes.
Environmental mercury mapping, modeling, and analysis [New Window]
Online tools for mapping mercury data in the environment, with downloadable data from monitoring studies
Florida Integrated Science Center - Gainesville [New Window]
Florida Integrated Science Center at Gainesville is the Center for Aquatic Resource Studies in Florida and southeastern United States. Site has links to projects on manatees, contaminants, invasive plants and animals, Everglades, and aquatic resources.
Hydrologic studies in the Upper Klamath Basin, Oregon [New Window]
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.
Impounded river systems [New Window]
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 [New Window]
On-line version of a USGS Fact Sheet describing Snakeheads, aggressive airbreathing freshwater fishes that are not native to North America. Snakeheads are considered injurious to certain native North American fish and other aquatic wildlife.
Lake Clark sockeye salmon research projects [New Window]
Summary of research on salmon fish resources in the Lake Clark area in Alaska with links to scientific projects, Native Alaskan intern program, lake core analysis, radio telemetry, genetics, subsistence fishing, and research staff.
Long Term Resource Monitoring Program (Upper Mississippi River area): sampling data [New Window]
Downloadable data and other information about the sampling programs used in long-term monitoring of the upper Mississippi River area.
Mercury Concentrations in Streams Found to Go Through Daily Cycles [New Window]
Research findings and examples of application to real problems--highly variable conditions cause the production of toxic methyl mercury in the environment which accumulates in fish.
Mercury contamination of aquatic ecosystems [New Window]
Fact sheet on mercury bioaccumulation and cycling in the environment. Also available in PDF format.
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