Anatomical Record (2009)
Toothed whales (Odontoceti, Cetacea) are the only aquatic mammals known to echolocate, and probably all of them are able to produce click sounds and to synthesize their echoes into a…
Echolocation by two foraging harbour porpoises (Phocoena phocoena)
Verfuss, U. K.; Miller, L. A.; Pilz, P. K. D.; Schnitzler, H.-U.
Journal of Experimental Biology (2009)
Synchronized video and high-frequency audio recordings of two trained harbour porpoises searching for and capturing live fish were used to study swimming and echolocation behaviour. One animal repeated the tasks…
Acoustic behaviour of echolocating porpoises during prey capture
DeRuiter, S. L.; Bahr, A.; Blanchet, M.-A.; Hansen, S. F.; Kristensen, J. H.; Madsen, P. T.; Tyack, P. L.; Wahlberg, M.
Journal of Experimental Biology (2009)
Porpoise echolocation has been studied previously, mainly in target detection experiments using stationed animals and steel sphere targets, but little is known about the acoustic behaviour of free-swimming porpoises echolocating…
Fort Richardson ordnance detonations and the harbor porpoise: A case study in marine mammal bioacoustics
Heenehan, H.
Honours Thesis - University of Conneticut (2009)
Hearing is extremely important for cetaceans because it is their “principal sense” (Weilgart, 2007) thus the harbor porpoise and other marine animals are highly dependent on sound for survival. This…
Acoustic basis for fish prey discrimination by echolocating dolphins and porpoises
Au, Whitlow W. L.; Branstetter, Brian K.; Benoit-Bird, Kelly J.; Kastelein, Ronald A.
The Journal of the Acoustical Society of America (2009)
The biosonar system of dolphins and porpoises has been studied for about 5 decades and much has been learned [Au, W. W. L. (1993). The Sonar of Dolphins (Springer, New…
Habitat preferences and interannual variability in occurrence of the harbour porpoise Phocoena phocoena off northwest Scotland
Marubini, F.; Gimona, A.; Evans, P. G. H.; Wright, P. J.; Pierce, G. J.
Marine Ecology Progress Series (2009)
The harbour porpoise Phocoena phocoena is the most common cetacean around the British Isles, but knowledge of its ecology, habitat preferences and inter-annual variability is still inadequate. Here, sightings collected…
Changes in click source levels with distance to targets: Studies of free-ranging white-beaked dolphins Lagenorhynchus albirostris and captive harbour porpoises Phocoena phocoena
Atem, Ana Carolina G.; Rasmussen, Marianne H.; Wahlberg, Magnus; Petersen, Hans C.; Miller, Lee A.;
Bioacoustics (2009)
Probably all odontocetes use echolocation for spatial orientation and detection of prey. We used a four hydrophone “Y” array to record the high frequency clicks from free-ranging White-beaked Dolphins Lagenorhynchus…
Management Plan for the Pacific Harbour Porpoise (Phocoena phocoena) in Canada
Fisheries and Oceans Canada (DFO)
Species at Risk Act Management Plan Series (2009)
Harbour Porpoise (Phocoena phocoena) are a small marine mammal reaching a length of about 2.2 m and weight of about 75 kg when fully grown, making them the smallest cetacean…
Harbour porpoise (Phocoena phocoena) presence patterns at an aquaculture cage site in the Bay of Fundy, Canada
Haarr, Marthe L.; Charlton, Laura D.; Terhune, John M.; Trippel, Edward A.
Aquatic Mammals (2009)
Finfish aquaculture is a prominent industry in the Bay of Fundy, Canada. The distribution of harbour porpoise (Phocoena phocoena) in the Bay during the summer and fall may be impacted…
Paedomorphic ossification in porpoises with an emphasis on the Vaquita (Phocoena sinus)
Mellor, Liliana; Cooper, Lisa Noelle; Torre, Jorge; Brownell, Robert L.
Aquatic Mammals (2009)
Heterochrony, the change in timing of developmental processes, is thought to be a key process shaping the numerous limb morphologies of tetrapods. Through a delayed offset in digit development, all…