Frontiers in Marine Science (2020)
The need to minimize bycatch of toothed whales (odontocetes) in gillnets has long been recognized, because they are often top predators and thus essential to ecosystem resilience. It is likely…
After the bite: Bacterial transmission from grey seals (Halichoerus grypus) to harbour porpoises (Phocoena phocoena)
Gilbert, Maarten J.; IJsseldijk, Lonneke L.; Rubio-García, Ana; Gröne, Andrea; Duim, Birgitta; Rossen, John; Zomer, Aldert L.; Wagenaar, Jaap A.
Royal Society Open Science (2020)
Recent population growth of the harbour porpoise (Phocoena phocoena), grey seal (Halichoerus grypus) and common seal (Phoca vitulina) in the North Sea has increased potential interaction between these species. Grey…
Assessing the effects of banana pingers as a bycatch mitigation device for harbour porpoises (Phocoena phocoena)
Omeyer, Lucy C. M.; Doherty, Philip D.; Dolman, Sarah; Enever, Robert; Reese, Allan; Tregenza, Nicholas; Williams, Ruth; Godley, Brendan J.
Frontiers in Marine Science (2020)
Bycatch is a significant cause of population declines of marine megafauna globally. While numerous bycatch mitigation strategies exist, acoustic alarms, or pingers, are the most widely adopted strategy for small…
Mycotic infections in free-ranging harbor porpoises (Phocoena phocoena)
Kapetanou, Athanasia; IJsseldijk, Lonneke L.; Willems, Dorien S.; Broens, Els M.; Everaarts, Eligius; Buil, Jochem B.; Verweij, Paul E.; Kik, Marja J. L.; Gröne, Andrea
Frontiers in Marine Science (2020)
Studies on the occurrence of fungal communities in the marine environment are still scarce, but mycotic infections in cetaceans are increasingly reported. Fungal disease following infection with Aspergillus species is…
Distribution and abundance of cetaceans in Icelandic waters over 30 years of aerial surveys
Pike, Daniel; Gunnlaugsson, Thorvaldur; Sigurjonsson, Johann; Vikingsson, Gisli
NAMMCO Scientific Publications (2020)
Beginning in 1986, 7 aerial surveys covering the coastal waters of Iceland have been conducted up to 2016. In addition, several partial surveys covering portions of the same area and…
High resolution three-dimensional beam radiation pattern of harbour porpoise clicks with implications for passive acoustic monitoring
Macaulay, Jamie D. J.; Malinka, Chloe E.; Gillespie, Douglas; Madsen, Peter T.
The Journal of the Acoustical Society of America (2020)
The source properties and radiation patterns of animal vocalisations define, along with propagation and noise conditions, the active space in which these vocalisations can be detected by conspecifics, predators, prey,…
Assessing harbour porpoise populations in south-west Wales, data issues and implications for conservation and management
Oakley, J. A.; Jenkins, R. E.; Thomas, T.; Williams, A. T.; Phillips, M. R.
Ocean & Coastal Management (2016)
The UK Government was recently criticised for failing to fulfil its obligations under the Habitats Directive in respect of designating protected areas for Harbour Porpoise Phocoena phocoena. At the centre…
Out of sight, out of mind: How conservation is failing European porpoises
Carlén, Ida; Nunny, Laetitia; Simmonds, Mark P.
Frontiers in Marine Science (2021)
The conservation of harbor porpoises (Phocoena phocoena) appears to be failing in Europe. There are particular concerns about this species in the Baltic Proper, Black, and Mediterranean Seas, as well…
Distribution and speed of recreational boats in Danish waters based on coastal observations and satellite images: Predicting where boats may affect harbour porpoises
Hao, Xiuqing; Nabe-Nielsen, Jacob
Ocean & Coastal Management (2023)
Danish coastal waters are a hotspot for recreational boating and harbour porpoises (Phocoena phocoena), but as there is little data on the boats’ speeds and distributions, it is difficult to…
Visual deprivation induces a stronger dive response in a harbor porpoise
Bakkeren, C.; Ladegaard, M.; Hansen, K. A.; Wahlberg, M.; Madsen, P. T.; Rojano-Doñate, L.
iScience (2023)
The dive response allows marine mammals to perform prolonged breath-hold dives to access rich marine prey resources. Via dynamic adjustments of peripheral vasoconstriction and bradycardia, oxygen consumption can be tailored…