NAMMCOSP (2003)
Wide-ranging methods that have been used to determine population structure, including distribution, life history, biology, ecological factors such as diet and contaminant loads, morphology and genetics, are reviewed. The importance…
Reactions of harbor porpoises Phocoena phocoena and herring Clupea harengus to acoustic alarms
Culik, B.M.; Koschinski, S.; Tregenza, N.; Ellis, G.M.
Marine Ecology Progress Series (2001)
Small cetaceans are susceptible to incidental mortality in the various forms of gillnet fisheries throughout their range. Research conducted since 1994 has shown that acoustic alarms (pingers) emitting high-frequency pulsed…
Dual extinction: The illegal trade in the endangered totoaba and its impact on the critically endangered vaquita
Environmental Investigation Agency
Briefing to the 66th Standing Committee of CITES (2016)
The vaquita and the totoaba have much in common: both are critically endangered, both are protected from international trade under CITES and both are endemic to a relatively small area…
Swimming patterns of wild harbour porpoises Phocoena phocoena show detection and avoidance of gillnets at very long ranges
Nielsen, T.P.; Wahlberg, M.; Heikkilä, S.; Jensen, M.; Sabinsky, P.; Dabelsteen, T.
Marine Ecology Progress Series (2012)
Harbour porpoises Phocoena phocoena are unintentionally caught in gillnets. Although the effectiveness of by-catch mitigation measures has been evaluated many times, only a few studies have investigated the behavioural patterns…
Determining optimal pinger spacing for harbour porpoise bycatch mitigation
Larsen, F.; Krog, C.; Ritzau Eigaard, O.
Endangered Species Research (2013)
A trial was conducted in the Danish North Sea hake gillnet fishery in July to September 2006 to determine whether the spacing of the Aquatec AQUAmark100 pinger could be increased…
Noise mitigation during pile driving efficiently reduces disturbance of marine mammals
Nehls, Georg; Rose, Armin; Diederichs, Ansgar; Bellmann, Michael; Pehlke, Hendrik
Advances in Experimental Medicine and Biology (2016)
Acoustic monitoring of harbor porpoises (Phocoena phocoena L., 1758) indicated a strongly reduced disturbance by noise emitted by pile driving for offshore wind turbine foundations insulated by a big bubble…
The phylogeographic pattern of mitochondrial DNA variation in the Dall’s porpoise Phocoenoides dalli
MCMILLAN, W. O.; BERMINGHAM, E.
Molecular Ecology (1996)
We used 11 restriction endonucleases to study mtDNA variation in 101 Dall's porpoises Phocoenoides dalli from the Bering Sea and western North Pacific. There was little phylogeographic patterning among the…
Photo-identification of the vaquita (Phocoena sinus): The world’s most endangered cetacean
Jefferson, T. A.; Olson, P. A.; Kieckhefer, T. R.; Rojas-Bracho, L.
Lat. Am. J. Aquat. Mamm. (2009)
(...) In the autumn of 2008, a large-scale international effort to study the vaquita and develop methods to monitor its population status was conducted. As part of this effort, we…
Report of Vaquita Expedition 2008 and current conservation actions
Jaramillo-Legorreta, Armando M.; Taylor, Barb; Gerrodette, Tim; Rankin, Shannon; Swift, Rene; Rojas-Bracho, Lorenzo
Scientific Committee Meeting Documents (2009)
Two scientific efforts brought the need for immediate actions to conserve vaquita as a high priority for the Mexican government. Passive acoustic techniques (Jaramillo-Legorreta, 2008) revealed a negative trend of…
Is a German harbour porpoise much more sensitive than a British one? Comparative analyses of mandatory measures for the protection of harbour porposes (Phocoena phocoena) during offshore wind farm ramming in Germany, Denmark and the UK
Luedeke, Jens
Proceedings of Meetings on Acoustics (2012)
Offshore wind farms (OWF) will soon contribute to significant growth in the renewable energy sector. At present just a few OWF have been built. As of 2012, Germany has an…