Ophelia (2002)
We measured metric and scored non-metric characters of 242 harbour porpoise (Phocoena phocoena) skulls from the North and the Baltic Sea and subdivided them into three geographical areas: The German…
Stable isotope analysis of harbour porpoises and their prey from the Baltic and Kattegat/Skagerrak Seas
Angerbjörn, Anders; Börjesson, Patrik; Brandberg, Katrin
Marine Biology Research (2006)
The by-caught harbour porpoises in commercial fisheries have raised concerns over their conservation status in the Baltic region. One important aspect for management purposes is porpoise movements within the region.…
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…
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…
Click train patterns of free-ranging harbour porpoises acquired using T-PODs may be useful as indicators of their behaviour
Koschinski, S.; Diederichs, A.; Amundin, M.
Journal of Cetacean Research and Management (2008)
Harbour porpoise signals consist of directional, high frequency stereotypic clicks which can be logged using T-PODs. Variation in interclick intervals (ICIs) can be used to distinguish different acoustic behaviours. So…
Food habits of finless porpoises (Neophocaena phocaenoides) in Hong Kong waters
Barros, N. B.; Jefferson, T. A.; Parsons, E. C. M.
The Raffles Bulletin of Zoology (2002)
This study provides information on food habits and insights into habitat use of finless porpoises (Neophocaena phocaenoides) in Hong Kong waters through the analysis of stomach contents of 31 stranded…
Scanning sonar of rolling porpoises during prey capture dives
Akamatsu, T.; Wang, D.; Wang, K.; Li, S.; Dong, S.
Journal of Experimental Biology (2009)
Dolphins and porpoises have excellent biosonar ability, which they use for navigation, ranging and foraging. However, the role of biosonar in free-ranging small cetaceans has not been fully investigated. The…
Harbour porpoises (Phocoena phocoena): Investigation of density, distribution patterns, habitat use and acoustics in the German North and Baltic Seas
Siebert, Ursula; Benke, Harald; Dehnhardt, Guido; Gilles, Anita; Hanke, Wolf; Honnef, Christopher G; Lucke, Klaus; Ludwig, Stefan; Scheidat, Meike; Verfuß, Ursula K
Offshore Wind Energy (2005)
The harbour, or common, porpoise (Phocoena phocoena) is the smallest cetacean inhabiting temperate to cold waters throughout the northern hemisphere. Due to its occurrence mainly but not exclusively in coastal…
Quantitative measures of anthropogenic noise on harbor porpoises: Testing the reliability of acoustic tag recordings
Wisniewska, Danuta M.; Teilmann, Jonas; Hermannsen, Line; Johnson, Mark; Miller, Lee A.; Siebert, Ursula; Madsen, Peter Teglberg
The Effects of Noise on Aquatic Life II (2016)
In recent years, several sound and movement recording tags have been developed to sample the acoustic field experienced by cetaceans and their reactions to it. However, little is known about…
The stranding anomaly as population indicator: The case of harbour porpoise Phocoena phocoena in North-Western Europe
Peltier, Helene; Baagøe, Hans J.; Camphuysen, Kees C. J.; Czeck, Richard; Dabin, Willy; Daniel, Pierre; Deaville, Rob; Haelters, Jan; Jauniaux, Thierry; Jensen, Lasse F.; Jepson, Paul D.; Keijl, Guido O.; Siebert, Ursula; Van Canneyt, Olivier; Ridoux, Vincent
PLoS ONE (2013)
Ecological indicators for monitoring strategies are expected to combine three major characteristics: ecological significance, statistical credibility and cost-effectiveness. Strategies based on stranding networks rank highly in cost-effectiveness, but their ecological…