Dan Bottom is a fishery research biologist who worked in state and federal government for 38 years, including 22 years with the Oregon Department of Fish and Wildlife in Corvallis and 16 years with the National Oceanic and Atmospheric Administration in Newport, Oregon. His research interests include salmon, estuaries, and environmental history. He helped to initiate a long-term study of the effects of wetland restoration on salmon populations in Salmon River estuary, home of the Sitka Center of Art and Ecology. Dan retired from federal service in 2016 but continues serving as Courtesy Faculty at Oregon State University and as a technical advisor for a large habitat restoration program in the Columbia River estuary.