Ecological Indicators (2016)
In the southern North Sea, harbour porpoise occurrence increased in recent years after a phase of low abundances during earlier decades. Only very few studies on porpoise presence in the…
Oxygen consumption and swim speed of the harbor porpoise Phocoena phocoena
Otani, Seiji; Naito, Yasuhiko; Kato, Akiko; Kawamura, Akito
Fisheries Science (2001)
The rate of oxygen consumption and energetic cost of locomotion of captive harbor porpoises Phocoena phocoena were studied in Hokkaido, Japan, using respirometry together with externally attached devices (a data…
Diving behavior and performance of harbor porpoises, Phocoena phocoena, in Funka Bay, Hokkaido, Japan
Otani, Seiji; Naito, Yasuhiko; Kawamura, Akito; Kawasaki, Masahiro; Nishiwaki, Shigetoshi; Kato, Akiko
Marine Mammal Sci (1998)
In order to monitor the diving behavior of free-ranging cetaceans, microdataloggers, with pre-programmed release mechanisms, were attached to the dorsal fins of two female harbor porpoises (Phocoena phocoena) in Funka…
Development and rudimentation of the peripheral olfactory system in the harbor porpoise, Phocoena phocoena (Mammalia: Cetacea)
Oelschläger, Helmut A.; Buhl, Eberhard H.
Journal of Morphology (1985)
Serial sections of 13 embryos and fetuses of the harbor porpoise from 10 mm crown-rump length up to 167 mm total length were studied. Unlike the adult animals, ontogenetic stages…
Echolocation by the harbour porpoise: life in coastal waters
Miller, Lee A.; Wahlberg, Magnus
Frontiers in Physiology (2013)
The harbor porpoise is one of the smallest and most widely spread of all toothed whales. They are found abundantly in coastal waters all around the northern hemisphere. They are…
Ontogenetic allometry and body composition of harbour porpoises (Phocoena phocoena, L.) from the western North Atlantic
McLellan, W. A.; Koopman, H. N.; Rommel, S. A.; Read, A. J.; Potter, C. W.; Nicolas, J. R.; Westgate, A. J.; Pabst, D. A.
J. Zoology (2002)
North Atlantic harbour porpoises Phocoena phocoena (L.) face considerable energetic challenges, as they are relatively small marine mammals with an intense reproductive schedule and a cold-water habitat. Post-natal growth of…
Single source sound production and dynamic beam formation in echolocating harbour porpoises (Phocoena phocoena)
Madsen, P. T.; Wisniewska, D.; Beedholm, K.
Journal of Experimental Biology (2010)
Echolocating toothed whales produce high-powered clicks by pneumatic actuation of phonic lips in their nasal complexes. All non-physeteroid toothed whales have two pairs of phonic lips allowing many of these…
Temporary shift in masked hearing thresholds in a harbor porpoise (Phocoena phocoena) after exposure to seismic airgun stimuli
Lucke, Klaus; Siebert, Ursula; Lepper, Paul A.; Blanchet, Marie-Anne
The Journal of the Acoustical Society of America (2009)
An auditory study was conducted to derive data on temporary threshold shift (TTS) induced by single impulses. This information should serve as basis for the definition of noise exposure criteria…
Keeping returns optimal: gain control exerted through sensitivity adjustments in the harbour porpoise auditory system
Linnenschmidt, M.; Beedholm, K.; Wahlberg, M.; Hojer-Kristensen, J.; Nachtigall, P. E.
Proceedings of the Royal Society B: Biological Sciences (2012)
Animals that use echolocation (biosonar) listen to acoustic signals with a large range of intensities, because echo levels vary with the fourth power of the animal's distance to the target.…
Biological and ecological factors related to trace element levels in harbour porpoises (Phocoena phocoena) from European waters
Lahaye, V.; Bustamante, P.; Law, R.J.; Learmonth, J.A.; Santos, M.B.; Boon, J.P.; Rogan, E.; Dabin, W.; Addink, M.J.; López, A.; Zuur, A.F.; Pierce, G.J.; Caurant, F.
Marine Environmental Research (2007)
Selected trace elements (Cd, Cu, Hg, Se, Zn) were measured in the kidneys and the liver of 104 harbour porpoises (Phocoena phocoena) stranded along the coasts of France, Galicia (Spain),…