The following paper has just been published: Mellinger, D.K., K.M. Stafford, S.E. Moore, R.P. Dziak, and H. Matsumoto. 2007. An overview of fixed passive acoustic observation methods for cetaceans. Oceanography 20(4):36-45. Articles in Oceanography do not have abstracts, but part of the Introduction says this: In this article, we describe the methodology of fixed passive acoustic observations, including instrumentation, software for detection of vocalizations, statistical methods, and interpretation of results, and then provide an example of the results from a fixed passive acoustic survey of Bransfield Strait, Antarctica. A PDF is available here: ftp://newportftp.pmel.noaa.gov/newport/mellinger/papers/MellingerEtAl07-AcousticCetaceanObservation.pdf Dave Mellinger David.Mellinger@oregonstate.edu or David.K.Mellinger@noaa.gov