John Calambokidis is a Senior Research Biologist and co-founder of Cascadia Research (in 1979). He has served as the Principal Investigator of more than 40 research studies on marine mammals, marine birds, and pollution. He has supervised a staff of up to 20 researchers. His recent projects include: coordinating a project to estimate the abundance of humpback whales in the entire North Pacific Ocean using photo-identification data, examining movements and estimating the abundance of blue whales in the North Pacific, studying residency patterns of gray whales in Washington waters, examining habitat preferences and abundance of harbor porpoise and evaluating trends in contaminant levels of harbor seals. His duties include writing research proposals, overseeing projects, conducting field research, analyzing data, and publishing research results of projects funded by government and private grants and contracts. He has co-authored over 30 papers in scientific journals and two books: the award-winning Guide to Marine Mammals of Greater Puget Sound (Island Publishers, with R. Osborne and E.M. Dorsey) and Blue Whales (Voyageur Press, with G.H. Steiger). He is a charter member of the Society for Marine Mammalogy, as well as a number of other scientific societies, and is an Adjunct Faculty Member of The Evergreen State College in Olympia.