Biology Letters (2007)
(...) Based on the evidence of a link between the likelihood of starvation and a lack of sandeels in the diet of porpoises in the Scottish North Sea in spring,…
Linking sandeel consumption and the likelihood of starvation in harbour porpoises in the Scottish North Sea: Could climate change mean more starving porpoises?
MacLeod, C. D.; Santos, M. B.; Reid, R. J.; Scott, B. E.; Pierce, G. J.
Biology Letters (2007)
Sandeels are known to be negatively affected by climate change in a number of ways. This study investigated whether these changes are affecting the harbour porpoise (Phocoena phocoena), a species…
Harbour porpoise (Phocoena phocoena) static acoustic monitoring: Laboratory detection thresholds of T-PODs are reflected in field sensitivity
Kyhn, Line A.; Tougaard, Jakob; Teilmann, Jonas; Wahlberg, Magnus; Jørgensen, Poul B.; Bech, Nikolaj I.
Journal of the Marine Biological Association of the United Kingdom (2008)
The T-POD (Timing POrpoise Detector) is a self-contained acoustic data logger used for detecting and monitoring the presence of echolocation clicks of small cetaceans. It has become a standard tool…
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…
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),…
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…
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…
Harbor porpoise clicks do not have conditionally minimum time bandwidth product
Beedholm, Kristian
The Journal of the Acoustical Society of America (2008)
The hypothesis that odontocete clicks have minimal time frequency product given their delay and center frequency values is tested by using an in-phase averaged porpoise click compared with a pure…
Low-frequency components in harbor porpoise (Phocoena phocoena) clicks: communication signal, by-products, or artifacts?
Hansen, M.; Wahlberg, M.; Madsen, P. T.
The Journal of the Acoustical Society of America (2008)
Underwater sound signals for biosonar and communication normally have different source properties to serve the purposes of generating efficient acoustic backscatter from small objects or conveying information to conspecifics. Harbor…