Brain, Behavior and Evolution (2016)
We compared mature dolphins with 4 other groupings of mature cetaceans. With a large data set, we found great brain diversity among 5 different taxonomic groupings. The dolphins in our…
Contradictory genetic make-up of Dutch harbour porpoises: Response to van der Plas-Duivesteijn et al.
Kopps, Anna M.; Palsbøll, Per J.
Journal of Sea Research (2016)
(...) Recently, van der Plas-Duivesteijn et al. (2015) presented a genetic assessment of harbour porpoises, Phocoena phocoena, along the Dutch coast, which concluded that all analysed Dutch harbour porpoises are…
Conditioned hearing sensitivity change in the harbor porpoise (Phocoena phocoena)
Nachtigall, Paul E.; Supin, Alexander Ya.; Pacini, Aude F.; Kastelein, Ronald A.
The Journal of the Acoustical Society of America (2016)
Hearing sensitivity, during trials in which a warning sound preceding a loud sound, was investigated in two harbor porpoises (Phocoena phocoena). Sensitivity was measured using pip-train test stimuli and auditory…
Cetaceans stranded in the Netherlands in 2008-2014
Keijl, Guido O.; Begeman, Lineke; Hiemstra, Sjoukje; IJsseldijk, Lonneke L.; Kamminga, Pepijn
Lutra (2016)
We present a validated list of cetaceans stranded from 2008 up to and including 2014. A total of 4406 cetaceans was found on the Dutch coast during this period, comprising…
A contribution to the study on the three cetacean species stranded along the Bulgarian Black Sea coast
Evtimova, V.; Delov, V.; Parvanov, D.; Grozdanov, A.; Velina, Y.
Annuaire de l’Université de Sofia “St. Kliment Ohridski” Faculte de Biologie (2016)
The study was conducted by examining stranded cetaceans while explicitly searching for dead marine mammals. Observations were made through covering transects along the Bulgarian Black Sea coast. The data collection…
ASCOBANS Recovery Plan for Baltic Harbour Porpoises – Jastarnia Plan (2016 Revision)
(2016)
This is the ASCOBANS species action plan for what is called Baltic harbour porpoise population primarily inhabiting the Baltic Proper. The population’s abundance has recently been estimated at only 497…
Going with the flow: Tidal influence on the occurrence of the harbour porpoise (Phocoena phocoena) in the Marsdiep area, The Netherlands
IJsseldijk, Lonneke L.; Camphuysen, Kees C.J.; Nauw, Janine J.; Aarts, Geert
Journal of Sea Research (2015)
One of the most important factors explaining the distribution and behaviour of coastal marine mammals are tides. Tidal forces drive a large number of primary and secondary processes, such as…
Behavioral responses of a harbor porpoise (Phocoena phocoena) to 25.5- to 24.5-kHz sonar down-sweeps with and without side bands
Kastelein, Ronald A.; van den Belt, Ivanka; Gransier, Robin; Johansson, Torbjörn
Aquatic Mammals (2015)
Signals used in naval and long-range fish detection sonar often contain harmonics which may influence the behavior of harbor porpoises (Phocoena phocoena) more than the lower fundamental frequencies, so the…
Updated marine mammal distribution and abundance estimates in British Columbia
Best, B. D.; Fox, C. H.; Williams, R.; Halpin, P. N.; Paquet, P. C.
Journal of Cetacean Research and Management (2015)
Information relating to the distribution and abundance of species is critical for effective conservation and management. For many species, including cetacean species of conservation concern, abundance estimates are lacking, out…
Cetacean noise criteria revisited in the light of proposed exposure limits for harbour porpoises
Tougaard, Jakob; Wright, Andrew J.; Madsen, Peter T.
Marine Pollution Bulletin (2015)
The impact of underwater noise on marine life calls for identification of exposure criteria to inform mitigation. Here we review recent experimental evidence with focus on the high-frequency cetaceans and…