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 (26 items)
Marine ecosystems (37 items)

Planktonic ecosystems (4 items)
Related topics:
Results 1 - 10 of 131 listed by similarity [list alphabetically]
Biological resource status and trends: Aquatic ecosystems [More info]
Information concerning status and trends of biological resources, focusing on aquatic ecosystems
Western Fisheries Research Center - Our research: aquatic ecosystems [More info]
Links to reports of aquatic ecosystems research at the Western Fisheries Research Center (WFRC) emphasizing the understanding of ecological processes for aquatic systems, including river basins, riparian areas, wetlands, and estuaries.
Aquatic Ecology Branch, Leetown Science Center [More info]
Programs of the Aquatic Ecology Branch on landscape ecology and GIS, molecular genetics, environmental contaminants, stream ecology, and other aspects of aquatic ecology in eastern United States.
PDF Assessment of aquatic macroinvertebrate communities in the Autauga Creek watershed, Autauga County, Alabama, 2009 [More info]
Previous analysis showed this area to have reduced macroinvertebrate biodiversity, an important measure of ecosystem health. New observations indicate that conditions have improved; report includes methods and results of sampling.
BioData: a national aquatic bioassessment database [More info]
A web-enabled database that provides for the capture, curation, integration, and delivery of bioassessment data collected by USGS, principally macroinvertebrate, algae, fish, and supporting habitat data from rivers and streams.
Biological resource status and trends: Bay, delta, and estuarine ecosystems [More info]
Information concerning status and trends of biological resources, focusing on bay, delta, and estuarine ecosystems
Biological resource status and trends: Inland water ecosystems [More info]
Information concerning status and trends of biological resources, focusing on inland water ecosystems
Biological resource status and trends: Lake ecosystems [More info]
Information concerning status and trends of biological resources, focusing on lake ecosystems
Biological resource status and trends: Marine ecosystems [More info]
Information concerning status and trends of biological resources, focusing on marine ecosystems
Biological resource status and trends: Ocean and sea ecosystems [More info]
Information concerning status and trends of biological resources, focusing on oceanic ecosystems
Result pages: 1 2 3 4 5 6 ... 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
Page Contact Information: Ask USGS