Studying cetacean behaviour: new technological approaches and conservation applications

a Nicholas School of the Environment, Duke University Marine Laboratory, Beaufort, NC, U.S.A. b Pratt School of Engineering, Duke University, Durham, NC, U.S.A. c Cetacean Research Unit, Murdoch University, Murdoch, WA, Australia d Department of Biology, Hopkins Marine Station, Stanford University, Monterey, CA, U.S.A. e Fisheries and Wildlife, Marine Mammal Institute, Oregon State University, Newport, OR, U.S.A.