|Project Description: ||This project involves the mapping and monitoring of marsh habitats which function like natural habitats for fishery species, developing a DBMS for spatial marsh habitat datasets and creating a prediction model of different fishery species density and population in Galveston Bay. The project uses a geographical information system (GIS) that helps the National Marine Fisheries Service (NMFS) Galveston Laboratory track marshes to evaluate their functionality in supporting fishery species after several years of development. This project assists the NMFS to plan successful restoration/creation projects that can maximize the potential for fisheries support. This project also assists NMFS with the ability to publish the marsh habitat spatial datasets and results about restoration projects on the NMFS website. Two user-friendly interactive tools are developed in this project. The first tool is developed for use in ArcView GIS software, which provides the NMFS a means to rapidly estimate the population size of a selected fishery species within an area of interest based on the prediction model provided by the NMFS. The second tool is an interactive Internet tool for clipping, extracting and saving the fisheries marsh habitat datasets of Galveston Bay on the client-side. Section 1 describes the background and rationale of the project. Section 2 describes the scope of project; task accomplished, and project results. Section 3 gives a detailed description of the design, analysis and implementation of the GIS developed for the project. Section 4 describes the evaluation and results of the project. Section 5 discusses the additional opportunities that exist as a result of the project. Section 6 summarizes the outcomes of the project and discusses the significance and importance of the project to GIS and non-GIS communities and on-going research in the NMFS Galveston Laboratory.