This report summarizes several years of work on Goliath Grouper to provide an understanding of adult ecology and behavior so that the population could be managed sustainably. REEF data were used to provide information on distribution patterns throughout the southeatern US and regional densities in Florida. The authors found high concordance between their quantitative reef survey data and the categorical abundance data collected by REEF volunteers, thus reducing uncertainty about use of REEF's population data for future stock assessments.