The Journal of the Acoustical Society of America (2012)
A key component in the operation of a biosonar system is the radiation of sound energy from the sound producing head structures of toothed whales and microbats. The current view…
Feeding ecology of harbour porpoises: Stable isotope analysis of carbon and nitrogen in muscle and bone
Jansen, Okka E.; Aarts, Geert M.; Das, Krishna; Lepoint, Gilles; Michel, Loïc; Reijnders, Peter J.H.
Marine Biology Research (2012)
Harbour porpoises are the most common small cetaceans in the North Sea and Dutch coastal waters. To study their trophic level and feeding location, stable carbon and nitrogen isotope ratios…
Comparative morphology of porpoise (Cetacea: Phocoenidae) pterygoid sinuses: Phylogenetic and functional implications
Racicot, Rachel A.; Berta, Annalisa
Journal of Morphology (2012)
High-resolution X-ray computed tomographic scans were used to examine pterygoid sinus morphology within extant porpoise species and one delphinid (Tursiops truncatus), in order to consider: 1) intraspecific and interspecific variation…
From echolocation clicks to animal density—Acoustic sampling of harbor porpoises with static dataloggers
Kyhn, Line A.; Tougaard, Jakob; Thomas, Len; Duve, Linda Rosager; Stenback, Joanna; Amundin, Mats; Desportes, Geneviève; Teilmann, Jonas
The Journal of the Acoustical Society of America (2012)
Monitoring abundance and population trends of small odontocetes is notoriously difficult and labor intensive. There is a need to develop alternative methods to the traditional visual line transect surveys, especially…
Diet of harbor porpoises along the Dutch coast: A combined stable isotope and stomach contents approach
Jansen, Okka E.; Michel, Loïc; Lepoint, Gilles; Das, Krishna; Couperus, Abraham S.; Reijnders, Peter J. H.
Mar Mam Sci (2012)
High stranding frequency of porpoises, Phocoena phocoena, along the Dutch coast since 2006 has led to increased interest in the ecology of porpoises in the North Sea. Stranded porpoises were…
Harbour porpoise (Phocoena phocoena Linnaeus, 1758) entering the Weser river after decades of absence
Wenger, Denise; Koschinski, Sven
Marine Biology Research (2012)
Since 2005, harbour porpoise (Phocoena phocoena) sightings in the lower course of the river Weser have been reported after decades of apparent absence. The aim of this study was to…
Unusual mass mortality of cetaceans on the coast of the Turkish western Black Sea in summer 2009
Tonay, Arda M.; Dede, Ayhan; Öztürk, Ayaka Amaha; Ercan, Didem; Fernández, Antonio
Journal of the Black Sea/Mediterranean Environment (2012)
Between mid-July and early August, an unusual mass mortality of cetaceans was detected on the Turkish Western Black Sea coast. 114 cetaceans (53 harbour porpoises, 9 common dolphins, 7 bottlenose…
Geographic, seasonal, and diurnal surface behavior of harbor porpoises
Teilmann, Jonas; Christiansen, Casper T.; Kjellerup, Sanne; Dietz, Rune; Nachman, Gösta
Mar Mam Sci (2012)
During ship surveys harbor porpoises are only visible when breaking the sea surface to breathe, while during aerial surveys they may be seen down to 2 m below the surface.…
Is a German harbour porpoise much more sensitive than a British one? Comparative analyses of mandatory measures for the protection of harbour porposes (Phocoena phocoena) during offshore wind farm ramming in Germany, Denmark and the UK
Luedeke, Jens
Proceedings of Meetings on Acoustics (2012)
Offshore wind farms (OWF) will soon contribute to significant growth in the renewable energy sector. At present just a few OWF have been built. As of 2012, Germany has an…
Behavioral reactions of harbor porpoise to pile-driving noise
Tougaard, Jakob; Kyhn, Line A.; Amundin, Mats; Wennerberg, Daniel; Bordin, Carolina
Advances in Experimental Medicine and Biology (2012)
Pile driving of large steel monopiles in offshore waters has increased rapidly in recent years due to the expanding development of offshore wind energy. In particular, Phocoena phocoena (harbor porpoise)…