From echolocation clicks to animal density—Acoustic sampling of harbor porpoises with static dataloggers

Kyhn, Line A.; Tougaard, Jakob; Thomas, Len; Duve, Linda Rosager; Stenback, Joanna; Amundin, Mats; Desportes, Geneviève; Teilmann, Jonas
The Journal of the Acoustical Society of America (2012)

Monitoring abundance and population trends of small odontocetes is notoriously difficult and labor intensive. There is a need to develop alternative methods to the traditional visual line transect surveys, especially…


Seasonal changes in the local distribution of Yangtze finless porpoises related to fish presence

Kimura, Satoko; Akamatsu, Tomonari; Li, Songhai; Dong, Lijun; Wang, Kexiong; Wang, Ding; Arai, Nobuaki
Marine Mammal Science (2011)

The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) is an endangered freshwater porpoise subspecies unique to the Yangtze River basin. Seasonal variations in local distribution of the animal, as well as…


Harbour porpoises (Phocoena phocoena) and wind farms: a case study in the Dutch North Sea

Scheidat, Meike; Tougaard, Jakob; Brasseur, Sophie; Carstensen, Jacob; van Polanen Petel, Tamara; Teilmann, Jonas; Reijnders, Peter
Environmental Research Letters (2011)

The rapid increase in development of offshore wind energy in European waters has raised concern for the possible environmental impacts of wind farms. We studied whether harbour porpoise occurrence has…


A combined visual and acoustic estimate of 2008 abundance, and change in abundance since 1997, for the vaquita, Phocoena sinus

Gerrodette, Tim; Taylor, Barbara L.; Swift, René; Rankin, Shannon; Jaramillo-Legorreta, Armando M.; Rojas-Bracho, Lorenzo
Marine Mammal Science (2010)

A line-transect survey for the critically endangered vaquita, Phocoena sinus, was carried out in October–November 2008, in the northern Gulf of California, Mexico. Areas with deeper water were sampled visually…


Using T-PODs to assess variations in the occurrence of coastal bottlenose dolphins and harbour porpoises

Bailey, Helen; Clay, Gemma; Coates, Elizabeth A.; Lusseau, David; Senior, Bridget; Thompson, Paul M.
Aquatic Conservation: Marine and Freshwater Ecosystems (2010)

1. Assessments of anthropogenic impacts on cetaceans are often constrained by limited data on the extent to which these species use particular areas. 2. Timing porpoise detectors (T-PODs) are autonomous…


Passive acoustic monitoring of bottlenose dolphin and harbour porpoise, in Cardigan Bay, Wales, with implications for habitat use and partitioning

Simon, Malene; Nuuttila, Hanna; Reyes-Zamudio, Mercedes M.; Ugarte, Fernando; Verfub, Ursula; Evans, Peter G.H.
Journal of the Marine Biological Association of the United Kingdom (2010)

Knowledge about harbour porpoise and bottlenose dolphin occurrence in Cardigan Bay Special Area of Conservation (SAC), Wales, is limited to daylight hours during summer, when conditions are suitable for traditional…