Doctoral Thesis - Wageningen University (2015)
1. Diet studies of marine mammals typically summarise prey composition across all individuals studied. Variation in individual diets is usually ignored, but may be more than just “noise” around an…
Relationships between polychlorinated biphenyls and health status in harbor porpoises (Phocoena phocoena) stranded in the United Kingdom
Jepson, Paul D.; Bennett, Peter M.; Deaville, Robert; Allchin, Colin R.; Baker, John R.; Law, Robin J.
Environmental Toxicology and Chemistry (2005)
To investigate possible relationships between polychlorinated biphenyl (PCB) exposure and infectious disease mortality in harbor porpoises (Phocoena phocoena) in United Kingdom waters, summed blubber concentrations of 25 chlorobiphenyl congeners (Σ25CB)…
High-density areas for harbor porpoises (Phocoena phocoena) identified by satellite tracking
Sveegaard, Signe; Teilmann, Jonas; Tougaard, Jakob; Dietz, Rune; Mouritsen, Kim N.; Desportes, Geneviève; Siebert, Ursula
Marine Mammal Science (2010)
The population status of harbor porpoises has been of concern for several years, and the establishment of Marine Protected Areas (MPAs) has been suggested as a method to protect the…
“Porpicide” in California: Killing of harbor porpoises (Phocoena phocoena) by coastal bottlenose dolphins (Tursiops truncatus)
Cotter, Mark P.; Maldini, Daniela; Jefferson, Thomas A.
Marine Mammal Science (2011)
Between 2007 and 2009, we witnessed three aggressive interactions between harbor porpoises and bottlenose dolphins in Monterey Bay, California. This is the first time such aggression has been documented in…
Tissue healing in two harbor porpoises (Phocoena phocoena) following long-term satellite transmitter attachment
Sonne, Christian; Teilmann, Jonas; Wright, Andrew J.; Dietz, Rune; Leifsson, Pall S.
Marine Mammal Science (2011)
(...) The present note evaluates, through postmortem findings, the effect of the attachment of satellite transmitters to the dorsal fin of two wild porpoises that were later lethally bycaught in…
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…
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.…
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…
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…