Arthropods of class Crustacea, such as crabs, lobsters, shrimp, prawns, or barnacles, with hard shells (exoskeleton) and segmented bodies with pairs of jointed appendages.
Descriptions of crustaceans and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on crustaceans.
Manual of taxonomic keys, location, and descriptive details of free-living and parasitic copepods in the Great Lakes. Viewing requires screen resolution of 1024 x 768 or above.
Brief descriptions of programs of research on aquatic nonindigenous plants and animals at the Florida Integrated Science Center with links to descriptions, videos, posters, and reports on various exotic plant and animals species.
Links to USGS capabilities in paleontological analyses of fossils such as mollusks, diatoms, palynomorphs, ostracodes, calcareous nannofossils, etc. Includes descriptive information, technique, equipment, and contacts for each fossil group.
Report (PDF format) on an evaluation of the potential environmental impacts of contaminated ground water from a metals refinery adjacent to the Missouri River in Omaha, Nebraska testing water and sediments for contaminants and toxicity.
Report on sea floor marks in the Northeast Bering Sea and Chukchi Sea that were identified as pits and furrows caused by whales and walruses in the process of feeding on bottom crustaceans.