Doyle Mosier received his undergraduate degree in zoology from the University of Oklahoma. After working for a couple of years at the Oklahoma Cooperative Fisheries Research Unit, he attended Baylor University, where he received his Master’s in Science in 1979. Following graduation, he was employed as Assistant Curator of Fishes/Research Scientist at the Texas Memorial Museum (University of Texas at Austin).
Doyle has been actively involved in both water quality and water quantity issues since 1985 when he accepted a position as an aquatic biologist at the Lower Colorado River Authority. He has also served as the Team Leader for the Instream Uses Team at the Texas Commission on Environmental Quality and retired in 2011 after serving as the Director of the River Studies Program for the Texas Parks and Wildlife Department for six years. He has worked extensively on field studies related to aquatic habitat and the development of instream flow needs for Texas’ rivers and streams and freshwater inflow needs for bays and estuaries. He has been actively involved in Edwards Aquifer issues during much of his career, serving as a member of the Barton Springs Salamander Recovery Team, and more recently, as a member of the Expert Science Subcommittee for the Edwards Aquifer Recovery Implementation Program.