Ecological Modelling (2014)
Ships and wind turbines generate noise, which can have a negative impact on marine mammal populations by scaring animals away. Effective modelling of how this affects the populations has to…
Measuring the economic value of increased precision in scientific estimates of marine mammal abundance and bycatch: Harbor porpoise Phocoena phocoena in the northeast U.S. gill-net fishery
Bisack, Kathryn D.; Magnusson, Gisele
North American Journal of Fisheries Management (2014)
Marine mammal stock assessments provide information that is valuable to public sector management and the private fishing sector; however, data are costly to collect. The precautionary approach, which is widely…
Possible causes of a harbour porpoise mass stranding in Danish waters in 2005
Wright, Andrew J.; Maar, Marie; Mohn, Christian; Nabe-Nielsen, Jacob; Siebert, Ursula; Jensen, Lasse Fast; Baagøe, Hans J.; Teilmann, Jonas
PLoS ONE (2013)
An unprecedented 85 harbour porpoises stranded freshly dead along approximately 100 km of Danish coastline from 7–15 April, 2005. This total is considerably above the mean weekly stranding rate for…
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…
Vaquitas and gillnets: Mexico’s ultimate cetacean conservation challenge
Rojas-Bracho, L; Reeves, RR
Endangered Species Research (2013)
There is a high risk that incidental mortality (bycatch) in gillnets will lead to extinction of the vaquita Phocoena sinus, a small porpoise endemic to Mexico’s northern Gulf of California.…
Estimated bycatch of harbour porpoise (Phocoena phocoena) in two coastal gillnet fisheries in Norway, 2006–2008. Mitigation and implications for conservation
Bjørge, Arne; Skern-Mauritzen, Mette; Rossman, Marjorie C.
Biological Conservation (2013)
Using data collected during 2006–2008 from a monitored segment (18 vessels) of the Norwegian coastal fleet (vessels
Preliminary study on genetic differences between two species of finless porpoises, genus Neophocaena, with lack of genetic divergence between two subspecies of the narrow-ridged finless porpoise, N. asiaeorientalis: cytochrome b sequence analyses
Koh, H. S.; Jo, J. E.; Ahn, N. H.; Lee, J. H.; Kim, K. S.; Jin, C. W.
Journal of Cetacean Research and Management (2013)
Using samples from bycaught finless porpoises, cytochrome b sequences were analysed and phylogenetic trees were constructed. The aims were to: (1) determine genetic divergences within the genus Neophocaena; (2) examine…
To ping or not to ping: The use of active acoustic devices in mitigating interactions between small cetaceans and gillnet fisheries
Dawson, S. M.; Northridge, S.; Waples, D.; Read, A. J.
Endangered Species Research (2013)
Active sound emitters (‘pingers’) are used in several gillnet fisheries to reduce bycatch of small cetaceans, and/or to reduce depredation by dolphins. Here, we review studies conducted to determine how…
Records of harbour porpoises (Phocoena phocoena) in fishing nets during the interwar period in Poland: Verification of archival materials
Psuty, Iwona
Aquatic Mammals (2013)
The Polish fisheries administration registered incidents of harbour porpoises caught by fishermen from fishing bases within the country's borders between 1922 and 1938. These data are unique in the Baltic…
Using pingers to reduce bycatch of small cetaceans in Peru’s small-scale driftnet fishery
Mangel, Jeffrey C.; Alfaro-Shigueto, Joanna; Witt, Matthew J.; Hodgson, David J.; Godley, Brendan J.
Oryx (2013)
There is growing awareness that small-scale fisheries may have large impacts on threatened marine fauna. Bycatch of small cetaceans by the Peruvian small-scale driftnet fleet results in the deaths of…