USGS - science for a changing world

Science Topics

Maps, Imagery, and Publications Hazards Newsroom Education Jobs Partnerships Library About USGS Podcasts/RSS
You are here: Topics > Population and community ecology > Ecosystems
Help
Aquatic ecosystems
Communities of interdependent organisms living primarily in or on water.
Subtopics:
Benthic ecosystems (3 items)
Estuarine ecosystems (27 items)
Freshwater ecosystems (29 items)
Marine ecosystems (37 items)

Planktonic ecosystems (4 items)
Related topics:
Results 101 - 110 of 132 listed by similarity [list alphabetically]
South Florida Virtual Tour [More info]
A pictorial overview for general audiences of key landscapes and ecosystems in South Florida; includes extensive references and links to past and current research activities relating to the South Florida ecosystem restoration effort.
Southeast Ecological Science Center - poster presentations [More info]
Poster presentations related to Greater Everglades, marine and coral studies, ecotoxicology, manatees, coastal ecology, nonindigenous aquatic species, coastal ecology, freshwater fisheries, and herpetology.
Southeast Ecological Science Center - Welcome to the kid's corner [More info]
Children's website on southern Florida aquatic biology with short movie clips of amphibians, games & puzzles, wildlife pictures, teacher resources, and more.
Southern Appalachian Research Branch, Leetown Science Center [More info]
Cooperative research in the biological, geophysical, and social sciences with emphasis on upland ecosystems in the southern Appalachian highlands.
St. Petersburg Coastal and Marine Science Center [More info]
Research with a primary focus on coastal and marine environments and societal implications of natural hazards, resource sustainability, and environmental change.
PDF St. Petersburg Coastal and Marine Science Center coral reef research [More info]
Describes ecological problems facing coral reef ecosystems and the research strategies we use to study the prevalence and severity of those problems.
PDF Streamflow characteristics and benthic invertebrate assemblages in streams across the western United States [More info]
Change in streams accompanying land and water use may affect benthic invertebrate assemblage composition and structure through changes in density of invertebrates or taxa richness, the number of different species living in the stream.
PDF Studies and trends of selected inland lakes of the Great Lakes Cluster National Parks [More info]
Report on the status of the biota and ecological factors of the inland lakes of the Great Lakes Cluster Parks: Indiana Dunes, Sleeping Bear Dunes,and Pictured Rocks National Lakeshores and Isle Royale and Voyageurs National Parks. (PDF file, 321 p.)
PDF Sturgeon research update: Confirmed pallid sturgeon spawning in the Missouri River in 2007 [More info]
Combined with supporting research in reproductive physiology, identification of spawning habitat, and early life history this result provides new understanding of environmental factors that might affect reproduction of this endangered species.
Summary of suspended-sediment concentration data, San Francisco Bay, California, water year 2000 [More info]
Suspended-sediment concentration data were collected in San Francisco Bay during water year 2000 using optical backscatterance sensors and water samples. This report presents the data-collection methods, data, and calibration plots.
Result pages:FirstPrevious ... 5 6 7 8 9 10 11 12 13 14 NextAll
Alphabetical Index of Topics a b c d e f g h i j k l m n o p q r s t u v w x y z

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.usgs.gov/science//science/science.php?term=54&b=100&n=10
Page Contact Information: Ask USGS