Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Walter M X Zimmer"'
Autor:
Peter L Tyack, Walter M X Zimmer, David Moretti, Brandon L Southall, Diane E Claridge, John W Durban, Christopher W Clark, Angela D'Amico, Nancy DiMarzio, Susan Jarvis, Elena McCarthy, Ronald Morrissey, Jessica Ward, Ian L Boyd
Publikováno v:
PLoS ONE, Vol 6, Iss 3, p e17009 (2011)
Beaked whales have mass stranded during some naval sonar exercises, but the cause is unknown. They are difficult to sight but can reliably be detected by listening for echolocation clicks produced during deep foraging dives. Listening for these click
Externí odkaz:
https://doaj.org/article/a44eaccea201429ab7691000e63e34d6
Autor:
Walter M. X. Zimmer
Passive acoustic monitoring is increasingly used by the scientific community to study, survey and census marine mammals, especially cetaceans, many of which are easier to hear than to see. PAM is also used to support efforts to mitigate potential neg
Autor:
Laela S. Sayigh, Francesco Caruso, J. Elsenbeck, John A. Collins, Walter M. X. Zimmer, Daniel Lizarralde
Publikováno v:
Proceedings of Meetings on Acoustics.
The fin whale (Balaenoptera physalus) commonly produces low-frequency and high-intensity downswept sounds centered at 20 Hz, named “20 Hz pulses.” The frequency bandwidth associated with seismic exploration (using airguns) overlaps with these sig
Publikováno v:
Zimmer, W M X, Harwood, J, Tyack, P L, Johnson, M P & Madsen, P T 2008, ' Passive acoustic detection of deep-diving beaked whales ', Acoustical Society of America. Journal, vol. 124, no. 5, pp. 2823-2832 . https://doi.org/10.1121/1.2988277
Beaked whales can remain submerged for an hour or more and are difficult to sight when they come to the surface to breathe. Passive acoustic detection (PAD) not only complements traditional visual-based methods for detecting these species but also ca
Autor:
Peter L. Tyack, Walter M. X. Zimmer
Publikováno v:
Marine Mammal Science. 23:888-925
The impact of naval sonar on beaked whales is of increasing concern. In recent years the presence of gas and fat embolism consistent with decompression sickness (DCS) has been reported through postmortem analyses on beaked whales that stranded in con
Publikováno v:
The Journal of the Acoustical Society of America. 117:3919-3927
Strandings of beaked whales of the genera Ziphius and Mesoplodon have been reported to occur in conjunction with naval sonar use. Detection of the sounds from these elusive whales could reduce the risk of exposure, but descriptions of their vocalizat
Publikováno v:
The Journal of the Acoustical Society of America. 117:1473-1485
The three-dimensional beam pattern of a sperm whale (Physeter macrocephalus) tagged in the Ligurian Sea was derived using data on regular clicks from the tag and from hydrophones towed behind a ship circling the tagged whale. The tag defined the orie
Autor:
Walter M. X. Zimmer
Publikováno v:
The Journal of the Acoustical Society of America. 134(3)
Passive acoustic monitoring is the method of choice to detect whales and dolphins that are acoustically active and to monitor their underwater behavior. The NATO Science and Technology Organization Centre for Maritime Research and Experimentation has
Autor:
Brandon L. Southall, Walter M. X. Zimmer, David Moretti, Peter L. Tyack, John Calambokidis, Gregory S. Schorr, John E. Joseph, Stacy L. DeRuiter, Len Thomas, Erin A. Falcone, Ari S. Friedlaender, Dinara Sadykova
Publikováno v:
Biology Letters
The article of record as published may be found at http://dx.doi.org/10.1098/rsbl.2013.0223 Most marine mammal strandings coincident with naval sonar exercises have involved Cuvier’s beaked whales (Ziphius cavirostris). We recorded animal movement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7caa28146d26fdfe26d7981eb920fec
https://hdl.handle.net/10945/49700
https://hdl.handle.net/10945/49700