Marine Technology Society Journal (2005)
To observe the bio-sonar behavior of dolphins and porpoises, a miniature stereo acoustic data logger was developed to record the echolocation clicks of small cetaceans. The 'A-tag' device is small…
Echolocation: high-frequency component in the click of the harbour porpoise (Phocoena ph. L.)
Møhl, B.; Andersen, S.
The Journal of the Acoustical Society of America (1973)
Besides the already known low‐frequency components of the Phocoena echolocation pulse, a narrow‐band pulse of 0.1‐msec duration, with the main energy between 110 and 150 kHz and a source level…
Prey capture by harbor porpoises (Phocoena phocoena): A comparison between echolocators in the field and in captivity
Miller, L.A.
The Journal of the Marine Acoustics Society of Japan (2010)
The harbor porpoise, and other toothed whales, use a biosonar click sequence that resembles the sequence of cries used by insectivorous bats when hunting for and capturing prey. The temporal…
The acoustic world of harbor porpoises
Wahlberg, Magnus; Linnenschmidt, Meike; Madsen, Peter; Wisniewska, Danuta; Miller, Lee
Amer. Scientist (2015)
Abstract currently unavailable
Dall’s porpoise (Phocoenoides dalli) echolocation click spectral structure
Bassett, Hannah R.; Baumann, Simone; Campbell, Gregory S.; Wiggins, Sean M.; Hildebrand, John A.
The Journal of the Acoustical Society of America (2009)
Dall’s porpoise (Phocoenoides dalli) echolocation clicks have not been widely recorded. Concurrent with visual observations, acoustic recordings of free‐ranging Dall’s porpoise were made offshore of southern California using a towed…
Diel echolocation activity of harbour porpoises (Phocoena phocoena) around North Sea offshore gas installations
Todd, V. L. G.; Pearse, W. D.; Tregenza, N. C.; Lepper, P. A.; Todd, I. B.
ICES Journal of Marine Science (2009)
Echolocation clicks of harbour porpoises (Phocoena phocoena) were detected with T-PODs, autonomous, passive, acoustic-monitoring devices, deployed from an offshore-exploration-drilling-rig and gas-production-platform complex in the Dogger Bank region of the North…
Synthetic communication signals influence wild harbour porpoise (Phocoena phocoena) behaviour
Culik, Boris; von Dorrien, Christian; Müller, Vailett; Conrad, Matthias
Bioacoustics (2015)
We used our novel and programmable Porpoise Alarm (PAL, patd.) to synthesize life-like, electronic harbour porpoise communication signals based on those described for captive animals. In the Little Belt, Denmark,…
Morphology of the odontocete melon and its implications for acoustic function
McKenna, Megan F.; Cranford, Ted W.; Berta, Annalisa; Pyenson, Nicholas D.
Marine Mammal Science (2011)
Toothed whales (crown Odontoceti) are unique among mammals in their ability to echolocate underwater, using specialized tissue structures. The melon, a structure composed of fat and connective tissue, is an…
Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena)
Linnenschmidt, Meike; Teilmann, Jonas; Akamatsu, Tomonari; Dietz, Rune; Miller, Lee A.
Mar Mam Sci (2012)
This study presents bioacoustic recordings in combination with movements and diving behavior of three free-ranging harbor porpoises (a female and two males) in Danish waters. Each porpoise was equipped with…
Do man-made structures and water depth affect the diel rhythms in click recordings of harbor porpoises (Phocoena phocoena)?
Brandt, Miriam J.; Hansen, Sophie; Diederichs, Ansgar; Nehls, Georg
Mar Mam Sci (2014)
The construction of industrial offshore structures may lead to colonization by a variety of marine organisms resulting in locally enhanced biodiversity and biomass, which may then affect the habitat use…