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: Categories > 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 91 - 100 of 134 listed by similarity [list alphabetically]
Platte River Program, a USGS Place-Based Studies Program [More info]
Site for the Platte River Program in Nebraska an area that is a critical staging area for migratory waterbirds of the Central Flyway. Includes links to color-infrared aerial photos, 1938 historic aerial photos, and Cottonwood Ranch research site.
Protecting the Nation's coral reefs [More info]
Report on problems in preserving coral reef ecosystems with links to information on the interagency U.S. Coral Reef Task Force, press releases, reports, and NOAA coral reef sites.
PDF Red-Rimmed Melania (Melanoides tuberculatus) - A Snail in Biscayne National Park, Florida - Harmful Invader or Just a Nuisance? [More info]
Explains how this potentially harmful invasive species arrived, why we are concerned, where in the area it is found, what environmental factors control its spread, and what might be done in response.
PDF Relations among geology, physiography, land use, and stream habitat conditions in the Buffalo and Current River systems, Missouri and Arkansas [More info]
River inventory and monitoring [More info]
Links to science programs on upper Midwest river inventory and monitoring with links to databases on macroinvertebrates, fisheries, vegetation, water quality, bathymetry, floodplain forest, wildlife, sediment, contaminants and nutrients.
Sago pondweed (Potamogeton pectinatus L.): a literature review [More info]
Literature review of sago pondweed, a submersed angiosperm that attracts waterfowl, but is also a nuisance plant that clogs irrigation systems. Includes classification, distribution, habitat, physiology, management, and economics.
Salinity variation in an estuary used for oyster cultivation in southeastern North Carolina during the passover of the eye of Hurricane Bertha [More info]
Review of a study monitoring changes in salinity in Alligator Bay, NC during a 1996 hurricane due to the influx of fresh and saltwater and the effect it would have on oyster aquaculture.
San Francisco Bay bathymetry web site [More info]
Provides location-depth grids of bathymetry available for San Francisco Bay and tools for examining those grids. Data provided as GIS grids and animations.
Satellite imagery: Lake Pontchartrain Basin and Gulf of Mexico [More info]
Report on satellite imagery collected by the NOAA Advanced Very High Resolution Radiometer (AVHRR) on NOAA polar-orbiting weather satellites. Links are provided to imagery of north-central Gulf of Mexico and of the Lake Pontchartrain.
Seasonal Flux and Assemblage Composition of Planktic Foraminifera from the Northern Gulf of Mexico, 2008-2009 [More info]
The U.S. Geological Survey established a sediment trap in the northern Gulf of Mexico to collect time-series data on the flux and assemblage composition of live planktic foraminifers. This report provides an update of the 2008 time-series data to include
Result pages:FirstPrevious ... 4 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?thcode=2&term=54&n=10&b=90
Page Contact Information: Ask USGS