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1994 MARYLAND BIOLOGICAL STREAM SURVEY NON-GAME FISH PATHOLOGY (NGANOM94)
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Description:
The Maryland Biological Stream Survey (MBSS) is a multi-year probability-based sampling program designed to assess the status of biological resources in non-tidal streams of Maryland. The MBSS study area comprises eighteen drainage basins across the state of Maryland, providing biological, water chemistry, and physical habitat data for approximately 300 first- through third-order stream sites per year. During 1994, the program conducted a Demonstration Project to test field protocols and refine the sampling design prior to full implementation of the MBSS during 1995-1997. Sampling for the 1994 Demonstration Project was conducted in seven basins: Youghiogheny, Potomac-Washington Metro, Patuxent, West Chesapeake, Susquehanna, Choptank, and Pocomoke. For stream fish, the MBSS collects quantitative data to estimate populations of individual species and to evaluate fish community composition, individual fish health, or geographic distribution of species. The data set NGANOM94 contains data on the occurrence of visible external pathology or anomalies in non-game fish species. Each record in this data set refers to a non-game fish species collected during each of two electrofishing passes during the summer index period for the 1994 MBSS Demonstration Project.