Freshwater and marine invertebrates, such as corals, jellyfish, and sea anemones, belonging to the phylum Coelenterata and living as sedentary polyps or free swimming medusae.
Descriptions of coelenterates and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on coelenterates.
Home page for Coastal and Marine Geology with links to topics of interest (sea level change, erosion, corals, pollution, sonar mapping, and others), Sound Waves monthly newsletter, field centers, regions of interest, and subject search system.
Report with mini-movie and photos on the hypothesis that the atmospheric transport of dust arising from the desertification in northern Africa led to algal infestation of corals, coral diseases, and the near extinction of associated sea urchins.
Use of remotely sensed images and spatial data to help map and study coral reef environments. Web page deals with the remote sensing work done for the Pacific Ocean component of the USGS coral reef project.
Brief report on sidescan sonar data, sediment sampling, and submersible and video photography studies of destruction of deep-water coral pinnacles where fish spawn off east-central Florida in the Oculina Bank in order to restore and protect the habitat.
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.
U.S. Department of the Interior |
U.S. Geological Survey