BMC Ecol (2007)
We investigated the feeding ecology and habitat use of 32 harbour porpoises by-caught in 4 localities along the Scandinavian coast from the North Sea to the Barents Sea using time-integrative…
Echolocation signals of wild harbour porpoises, Phocoena phocoena
Villadsgaard, A.; Wahlberg, M.; Tougaard, J.
Journal of Experimental Biology (2007)
Field recordings of harbour porpoises (Phocoena phocoena) were made in the inner Danish waters with a vertical array of three or four hydrophones. The back-calculated source level ranged from 178…
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…
Skin diseases in cetaceans
Van Bressem, Marie-Françoise; Van Waerebeek, Koen; Flach, Leonardo; Reyes, Julio César; de Oliveira Santos, Marcos César; Siciliano, Salvatore; Echegaray, Monica; Viddi, Francisco; Felix, Fernando; Crespo, Enrique; Sanino, Gian Paolo; Avila, Isabel Cristina; Fraijia, Natalia; Castro, Cristina
Scientific Committee Meeting Documents (2008)
Micro-organisms that are known or suspected to cause skin diseases in cetaceans are briefly reviewed. Viruses belonging to four families i.e. Caliciviridae, Herpesviridae, Papillomaviridae and Poxviridae were detected by electron…
Potential limits to anthropogenic mortality of small cetaceans in coastal waters of British Columbia
Williams, Rob; Hall, Anna; Winship, Arliss
Can. J. Fish. Aquat. Sci. (2008)
Small cetaceans are by-caught in salmon gillnet fisheries in British Columbia (BC) waters. In Canada, there is currently no generic calculation to identify when management action is necessary to reduce…
Effect of pingers on harbour porpoise (Phocoena phocoena) bycatch in the US Northeast gillnet fishery
Palka, D. L.; Rossman, M. C.; VanAtten, A. S.; Orphanides, C. D.
Journal of Cetacean Research and Management (2008)
Harbour porpoise (Phocoena phocoena) bycatch in the US Northeast gillnet fishery is managed under the Harbour Porpoise Take Reduction Plan (HPTRP), which was implemented on 1 January 1999. The HPTRP…
Functional morphology of the hyolaryngeal complex of the harbor porpoise (Phocoena phocoena): Implications for its role in sound production and respiration
Huggenberger, Stefan; Rauschmann, Michael A.; Oelschläger, Helmut H. A.
Anatomical Record (2008)
In several publications, it was shown that echolocation sound generation in the nasal (epicranial) complex of toothed whales (Odontoceti) is pneumatically driven. Modern hypotheses consider the larynx and its surrounding…
Brucella ceti associated pathology in the testicle of a harbour porpoise (Phocoena phocoena)
Dagleish, M. P.; Barley, J.; Finlayson, J.; Reid, R. J.; Foster, G.
Journal of Comparative Pathology (2008)
Brucellosis is reported increasingly in marine mammals and the marine species of Brucella are capable of causing community acquired zoonotic infections in humans as well as abortion in cattle as…