Chapters 2, 4, and 5 of this dissertation present data collected using the RDT. Chapter 2 presents the complete fish assemblage reported by RDT and Stationary Diver Technique (SDT; referred to in Bohnsack, 1996, as the SST) surveys over three years of semi-annual surveys of the Flower Gardens and Stetson Bank, in the northwest Gulf of Mexico. Chapter 4 examines the quality of fish census data generated by REEF nonexperts, and was published in the Journal of Gulf of Mexico Science (Pattengill-Semmens and Semmens, 1998). Chapter 5 provides discussion on the applications and reasons for choosing the RDT and the SDT for this project. A comparison between the abundance estimates of the two methods and the biases inherent in each is also given.