Water-quality and amphibian population data for Maryland, Washington, D.C., and Virginia, 2001-2004
Open-File Report
2004-1401
Prepared in cooperation with U.S. Fish and Wildlife Service (Patuxent Research Refuge), U.S. Department of Agriculture (Beltsville Agricultural Research Center), and National Park Service (Rock Creek Park, Shenandoah National Park)
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Abstract
Data on the chemical composition of water and on amphibian populations were collected at least annually from vernal pool and stream sites in Maryland, Washington, D.C., and Virginia, from 2001 through 2004. The data were collected as part of long-term monitoring projects of the Northeast Region of the Amphibian Research and Monitoring Initiative (ARMI) of the U.S. Geological Survey. Water samples were analyzed for temperature, specific conductance, pH, dissolved-oxygen concentration, acid-neutralizing capacity, and concentrations of total Kjeldahl nitrogen and total phosphorus; in 2004, samples also were analyzed for nitrite plus nitrate concentrations and total nitrogen concentrations. Field and laboratory analytical results of water samples and quality-assurance information are presented. Amphibian population data include the presence of amphibian species and the maximum number of egg masses of wood frogs and spotted salamanders at vernal pools, and counts of amphibians made during stream transect and stream quadrat surveys.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Water-quality and amphibian population data for Maryland, Washington, D.C., and Virginia, 2001-2004 |
| Series title | Open-File Report |
| Series number | 2004-1401 |
| DOI | 10.3133/ofr20041401 |
| Year Published | 2004 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Richmond, VA |
| Contributing office(s) | Toxic Substances Hydrology Program, Virginia Water Science Center |
| Description | iv, 45 p. |
| Country | United States |
| State | Maryland, Virginia, Washington, D.C. |
| Other Geospatial | Beltsville Agricultural Research Station, Patuxent Research REfuge, Rock Creek Park, Shenandoah National Park |
| Online Only (Y/N) | Y |
| Google Analytic Metrics | Metrics page |