| US Geological Survey home page http://info.er.usgs.gov/ |
| North American Benthological Society http://www.benthos.org/index.htm |
| The Ecological Society of America http://esa.sdsc.edu/ |
| Virginia Department of Game and Inland Fisheries http://www.dgif.state.va.us/education/index.cfm |
| Virginia Department of Conservation and Recreation http://www.dcr.state.va.us/index.htm |
| Environmental Protection Agency http://www.epa.gov/ |
| National Science Foundation http://www.nsf.gov/ |