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…
Spatio-temporal associations between harbour porpoise Phocoena phocoena and specific fisheries in the German Bight
Herr, Helena; Fock, Heino O.; Siebert, Ursula
Biological Conservation (2009)
Interactions between cetaceans and fisheries are a major concern of cetacean conservation and fisheries management, as by-catch and resource competition occur as a result. To assess potential interaction between porpoises…
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…
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…
Emission of social sounds by marine animals
Au, W. W. L.; Hastings, M. C.
Principles of Marine Bioacoustics (2008)
(...) Sound emissions by odontocetes (toothed whales and dolphins) can be classified into two broad categories of frequency-varying continuous tonal sounds referred to as whistles and broadband clicks (Evans, 1967),…
Rehabilitation and homing behavior of a satellite-tracked harbor porpoise (Phocoena phocoena)
Schofield, David T.; Early, Greg; Wenzel, Frederick W.; Matassa, Keith; Perry, Cindi; Beekman, Gerry; Whitaker, Brent; Gebhard, Erika; Walton, Wendy; Swingle, Mark
Aquatic Mammals (2008)
A yearling male harbor porpoise (Phocoena phocoena) stranded alive on the shores of Avon, North Carolina, and was rehabilitated for nearly 10 mo at the National Aquarium in Baltimore and…
Changes in the occurrence of common dolphins, striped dolphins and harbour porpoises in the English Channel and Bay of Biscay
MacLeod, Colin D.; Brereton, Tom; Martin, Clive
Journal of the Marine Biological Association of the United Kingdom (2008)
Regular monitoring of the status of cetacean populations is essential for conservation, policy and management. By using a passenger ferry as a scientific research platform, this study provides information on…
Diurnal and tidal variations in habitat use of the harbour porpoise (Phocoena phocoena) in southwest Britain
Goodwin, Lissa
Aquatic Mammals (2008)
With the United Kingdom required to designate Special Areas of Conservation (SACs) under Natura 2000 by 2012, it is important to understand site-specific activity and habitat use in order to…
Characterisation of harbour porpoise (Phocoena phocoena) habitat in German waters
Gilles, A.
Doctoral Thesis - Christian-Albrechts-Universität zu Kiel (2008)
The harbour porpoise (Phocoena phocoena) is an important top predator and as such an indicator species for its environment. Before the beginning of the 21st century, little data existed on…
Effect of two levels of masking noise on the hearing threshold of a harbor porpoise (Phocoena phocoena) for a 4.0 kHz signal
Kastelein, Ronald A.; Wensveen, Paul J.
Aquatic Mammals (2008)
The 50% detection hearing thresholds of a harbor porpoise for a 4.0 kHz narrow-band FM signal, presented at the background noise level in a pool and with two masking noise…