Maryland Biological Stream Survey

Maryland Biological Stream Survey
Name	Maryland Biological Stream Survey
Type	Environmental monitoring program
Founded	1992
Location	Maryland
Key people	Tim Shriver; John Odonnell; Gretchen R. Barr; Paul D. Gammon
Parent organization	Maryland Department of Natural Resources

Maryland Biological Stream Survey is a state-run aquatic assessment program that inventories biological, chemical, and physical conditions of freshwater streams across Maryland. The survey produces statewide condition assessments used by agencies such as the Maryland Department of the Environment, U.S. Environmental Protection Agency, and regional partners including the Chesapeake Bay Program and U.S. Geological Survey. Its data inform resource management decisions involving entities like the National Oceanic and Atmospheric Administration, U.S. Fish and Wildlife Service, and local Montgomery County, Maryland authorities.

Overview

The program conducts probabilistic and targeted surveys of wadeable streams to evaluate ecological condition using macroinvertebrates, fish, algae, and habitat measures. Primary outputs include state-scale biological condition estimates that support statutory programs such as the Clean Water Act §305(b)/§303(d) reporting managed by the U.S. Environmental Protection Agency. Collaborating institutions range from the Smithsonian Institution and University of Maryland, College Park to regional conservation districts and municipal utilities like Baltimore City Department of Public Works. The survey’s results are integrated into planning by bodies such as the Chesapeake Bay Foundation, National Park Service, and county planning commissions.

History and Development

Initiated in 1992 under the aegis of the Maryland Department of Natural Resources, the survey grew from pilot projects informed by national programs like the National Aquatic Resource Surveys and methodologies developed by the U.S. Environmental Protection Agency's Office of Water. Early funding and technical support involved partnerships with the U.S. Geological Survey and academic collaborators including Johns Hopkins University and the University of Maryland Center for Environmental Science. Over time the program aligned protocols with national frameworks established by the Environmental Monitoring and Assessment Program and interoperability guidance from the National Water Quality Monitoring Council.

Methods and Protocols

Sampling design employs probability-based site selection drawing on hydrography datasets like the National Hydrography Dataset and geospatial layers from the Maryland Department of Planning. Biological sampling emphasizes standardized kick-net macroinvertebrate collection, electrofishing for fish assemblages, periphyton scrapes for algal communities, and habitat assessments using rapid assessment protocols common to Environmental Protection Agency regional programs. Data quality follows laboratory QA/QC procedures compatible with standards from the Association of American Fish and Wildlife Agencies and analytical methods used by the U.S. Geological Survey National Water Quality Laboratory. Metadata schemas reference practices from the FGDC and the EPA STORET framework.

Key Findings and Results

Survey reports have documented spatial patterns of ecological condition across regions including the Appalachian Mountains (United States), the Piedmont (United States), and the Atlantic Coastal Plain (United States), revealing gradients in biological integrity linked to urbanization, agriculture, and acidification. Results have identified impaired waters listed under the Clean Water Act and informed Total Maximum Daily Load development for pollutants like nutrients and sediments overseen by the Chesapeake Bay Program. Peer-reviewed syntheses with authors from University of Maryland, Baltimore County and the Smithsonian Environmental Research Center have been cited by agencies such as the National Oceanic and Atmospheric Administration and the U.S. Fish and Wildlife Service in conservation planning.

Data Management and Accessibility

Survey datasets are curated using data management standards compatible with the National Water Quality Monitoring Council and public repositories like the U.S. Geological Survey ScienceBase and state portals maintained by the Maryland iMap. Data sharing agreements have enabled integration with federal systems such as the EPA Water Quality Exchange (WQX) and regional tools used by the Chesapeake Bay Program. Data stewardship involves version control, QA documentation, and archival practices informed by the Federal Geographic Data Committee and institutional policies at the Maryland Department of Natural Resources.

Partnerships and Funding

Funding sources have included state appropriations through the Maryland General Assembly, competitive grants from the U.S. Environmental Protection Agency and the National Oceanic and Atmospheric Administration, and cooperative agreements with the U.S. Geological Survey. Research collaborations have engaged academic partners like University of Maryland Center for Environmental Science, Towson University, and Frostburg State University, as well as non-governmental organizations such as the Chesapeake Bay Foundation and the Conservation Fund. Technical assistance and training have been supported by federal programs including the Environmental Protection Agency's Regional Monitoring Networks.

Impact and Conservation Applications

Findings have been used to prioritize restoration projects funded by programs such as the Clean Water State Revolving Fund and grant initiatives administered by the National Fish and Wildlife Foundation and the Chesapeake Bay Trust. Management actions influenced by the survey span stream restoration designed with input from the Natural Resources Conservation Service, land use planning by county governments, and species conservation efforts involving the U.S. Fish and Wildlife Service and the Maryland Department of Natural Resources's Fisheries Service. The program’s data support regulatory listings, inform citizen science initiatives coordinated by groups like Chesapeake Conservancy, and underpin climate adaptation planning with agencies such as the Maryland Department of the Environment.

Category:Environment of Maryland Category:Water monitoring in the United States