Geographic information systems in support of index of biotic integrity monitoring in Georgia streams
The Georgia Department of Natural Resources, Stream Survey Team (GDNR-SST) assesses fish assemblages in wadeable streams throughout Georgia and has sampled more than 600 stream sites in the Piedmont, Southeastern Plains, and Ridge and Valley ecoregions since 1998. The GDNR-SST, in cooperation with The University of Georgia Center for Remote Sensing and Mapping Science (UGA-CRMS), has developed a custom Geographic Information Systems (GIS) that is interfaced with an external relational database management system. This system enables the GDNR-SST to develop and maintain a comprehensive database representing this sampling effort and to automate many of the tasks associated with the process including; data entry, database management, IBI scoring, watershed delineation, and report generation. The GIS has been developed using Environmental Systems Research Institute’s (ESRI) ArcView, the Avenue Scripting Language, Microsoft Access, and Visual Basic for Applications (VBA).