Predictive Spatial Analysis of Marine Mammal Habitats

Abstract : We developed a data management, statistical modeling and decision support systemdescribing habitat use of marine mammalsin the North Atlantic and Gulf of Mexico. Our objective was to make this information available in a comprehensive manner to environmental planners and decision makers in the Navy and elsewhere. The system uses data on the distribution of marine mammalsfrom dedicated surveys contained in the online OBIS-SEAMAP marine data archive. We used these data to develop predictive habitat models for guildsof marine mammalsin these two regions. We delivered model outputs in an online, flexible Spatial Decision Support System(SDSS). The SDSS is a browser-based, interactive mapping application that enables users to view modelresults with original survey effort and marine mammal observations. In total, we generated 33 models, representing 16 cetacean guilds, using environmental datafrom the JPL physical oceanographic data archive. Predictive maps for the likelihood of encounter with marine mammalscomprise the results, along with estimates of standard errors.