Scientific Committee Meeting Documents (2015)
The Expert Panel on Vaquita Acoustic Monitoring had its second meeting on April 28, 2015 to analyze the first four seasons (2011-2014) of the acoustic monitoring program. Results indicate an…
Passive acoustic monitoring of the decline of Mexico’s critically endangered vaquita
Jaramillo-Legorreta, Armando; Cardenas-Hinojosa, Gustavo; Nieto-Garcia, Edwyna; Rojas-Bracho, Lorenzo; Ver Hoef, Jay; Moore, Jeffrey; Tregenza, Nicholas; Barlow, Jay; Gerrodette, Tim; Thomas, Len; Taylor, Barbara
Conservation Biology (2016)
The vaquita (Phocoena sinus) is the world's most endangered marine mammal with ≈245 individuals remaining in 2008. This species of porpoise is endemic to the northern Gulf of California, Mexico,…
Extinction is imminent for Mexico’s endemic porpoise unless fishery bycatch is eliminated
Taylor, Barbara L.; Rojas-Bracho, Lorenzo; Moore, Jeffrey; Jaramillo-Legorreta, Armando; Ver Hoef, Jay M.; Cardenas-Hinojosa, Gustavo; Nieto-Garcia, Edwyna; Barlow, Jay; Gerrodette, Tim; Tregenza, Nicholas; Thomas, Len; Hammond, Philip S.
Conservation Letters (2016)
The number of Mexico's endemic porpoise, the vaquita (Phocoena sinus), is collapsing primarily due to bycatch in illegal gillnets set for totoaba (Totoaba macdonaldi), an endangered fish whose swim bladders…
Comparing the performance of C-PODs and SoundTrap/PAMGUARD in detecting the acoustic activity of harbor porpoises (Phocoena phocoena)
Sarnocinska, Joanna; Tougaard, Jakob; Johnson, Mark; Madsen, Peter T.; Wahlberg, Magnus
Proceedings of Meetings on Acoustics (2016)
The C-POD logger is a widely used instrument for passive acoustic monitoring of harbor porpoises, but the absence of a continuous recording in this device makes it difficult to verify…
Comparing distribution of harbour porpoises (Phocoena phocoena) derived from satellite telemetry and passive acoustic monitoring
Mikkelsen, Lonnie; Rigét, Frank F.; Kyhn, Line A.; Sveegaard, Signe; Dietz, Rune; Tougaard, Jakob; Carlström, Julia A. K.; Carlén, Ida; Koblitz, Jens C.; Teilmann, Jonas
PLOS ONE (2016)
Cetacean monitoring is essential in determining the status of a population. Different monitoring methods should reflect the real trends in abundance and patterns in distribution, and results should therefore ideally…
Harbour porpoises in the Aegean Sea, eastern Mediterranean: The species’ presence is confirmed
Cucknell, A.-C.; Frantzis, A.; Boisseau, O.; Romagosa, M.; Ryan, C.; Tonay, A. M.; Alexiadou, P.; Öztürk, A. A.; Moscrop, A.
Marine Biodiversity Records (2016)
Results are presented from the first systematic visual and acoustic line-transect survey for harbour porpoises in the Thracian Sea, northern Aegean Sea. During the vessel survey, undertaken in summer 2013,…
Effects of offshore pile driving on harbour porpoise abundance in the German Bight
Brandt, Miriam J.; Dragon, Anne-Cécile; Diederichs, Ansgar; Schubert, Alexander; Kosarev, Vladislav; Nehls, Georg; Wahl, Veronika; Michalik, Andreas; Braasch, Alexander; Hinz, Claus; Ketzer, Christian; Todeskino, Dieter; Gauger, Marco; Laczny, Martin; Pipe, Werner
Report for Offshore Forum Windenergie (2016)
This study analyses the effects of the construction of eight offshore wind farms within the German North Sea between 2009 and 2013 on harbour porpoises (Phocoena phocoena). It combines porpoise…
Echolocation detections and digital video surveys provide reliable estimates of the relative density of harbour porpoises
Williamson, Laura D.; Brookes, Kate L.; Scott, Beth E.; Graham, Isla M.; Bradbury, Gareth; Hammond, Philip S.; Thompson, Paul M.
Methods in Ecology and Evolution (2016)
1. Robust estimates of the density or abundance of cetaceans are required to support a wide range of ecological studies and inform management decisions. Considerable effort has been put into…
Riding the tide: Use of a moving tidal-stream habitat by harbour porpoises
Benjamins, S.; Dale, A.; van Geel, N.; Wilson, B.
Marine Ecology Progress Series (2016)
Tidal-stream habitats present periodically fast-flowing, turbulent conditions. Evidence suggests that these conditions benefit top predators such as harbour porpoises Phocoena phocoena, presumably allowing them to optimise exploitation of prey resources.…
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…