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1995 MARYLAND BIOLOGICAL STREAM SURVEY NON-GAME FISH PATHOLOGY (NGANOM95)
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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. 1995 was the first year of full implementation of the MBSS, with all basins to be sampled during 1995-1997. Beginning in 1995, the program implemented a revised sampling design, based on results of the earlier 1994 MBSS Demonstration Project. MBSS 1995 sampling was conducted in six basins: Youghiogheny, Upper Potomac, Lower Potomac, Patapsco, Chester, and Nanticoke-Wicomico. 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 NGANOM95 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 1995 MBSS sampling year.