Locations of sediment samples with Clostridium perfringens in Long Island Sound, USGS OFR 00-304

The purpose of this layer is to disseminate a digital version of the location of samples containing Clostridium perfringens, and concentrations of Clostridium perfringens in those samples. This GIS layer contains a point layer showing the location of surficial sediment samples in Long Island Sound containing Clostridium perfringens and the concentration of Clostridium perfringens in those samples. Grab samples were frozen at sea, and freeze-dried in the lab. Analyses for Clostridium perfringens were performed by Biological Analytical Labs of North Kingston, RI, according to methods described by Emerson and Cabelli (1982) and Bisson and Cabelli (1979). Data consisting of station navigation and Clostridium perfringens concentrations in the surficial sediments were inmported as text files.