Results 71 to 80 of about 7,925 (202)

Echolocation detections and digital video surveys provide reliable estimates of the relative density of harbour porpoises [PDF]

, 2016
Acknowledgements We would like to thank Erik Rexstad and Rob Williams for useful reviews of this manuscript. The collection of visual and acoustic data was funded by the UK Department of Energy & Climate Change, the Scottish Government, Collaborative ...
Beth E. Scott, Buckland S.T., Gareth Bradbury, Isla M. Graham, Jana McPherson, Kate L. Brookes, Laura D. Williamson, Mudge G.P., Paul M. Thompson, Philip S. Hammond, R Core Team   +10 more
core   +2 more sources

Validation of aerial photogrammetry methods to measure body size, condition and mass in small cetaceans

The Journal of Physiology, EarlyView.
Abstract figure legend Unoccupied aerial vehicle (UAV)‐based photogrammetry provides measurements equivalent to traditional hand measurements in bottlenose dolphins. Mass estimates derived from UAV measurements closely match the true body mass of live individuals.
Riccardo Cicciarella, Erik P. Willems, Benjamin Markham, Manuela R. Bizzozzero, Wayne Phillips, Simon J. Allen, Michael Krützen, Fredrik Christiansen   +7 more
wiley   +1 more source

Patterns and Trends in Cetacean Occurrence Revealed by Shorewatch, a Land-Based Citizen Science Program in Scotland (United Kingdom)

Frontiers in Marine Science, 2021
Shorewatch is a citizen science project, managed by Whale and Dolphin Conservation (WDC), that records the occurrence of cetaceans during regular, standardized watches from a series of locations along the coast of Scotland (United Kingdom).
Paula Gutiérrez-Muñoz, Alice E. M. Walters, Sarah J. Dolman, Graham J. Pierce, Graham J. Pierce   +4 more
doaj   +1 more source

Assessing auditory evoked potentials of wild harbor porpoises (Phocoena phocoena) [PDF]

The Journal of the Acoustical Society of America, 2016
Testing the hearing abilities of marine mammals under water is a challenging task. Sample sizes are usually low, thus limiting the ability to generalize findings of susceptibility towards noise influences. A method to measure harbor porpoise hearing thresholds in situ in outdoor conditions using auditory steady state responses of the brainstem was ...
Ruser, A., Dähne, M., Van Neer, A., Lucke, Klaus, Sundermeyer, J., Siebert, U., Houser, D., Finneran, J., Everaarts, E., Meerbeek, J., Dietz, R., Sveegaard, S., Teilmann, J.   +12 more
openaire   +4 more sources

Soundings: the Newsletter of the Monterey Bay Chapter of the American Cetacean Society. 2010 [PDF]

, 2010
(PDF contains 92 pages.

core  

Seasonal and Diurnal Patterns of Harbor Porpoise (Phocoena phocoena) Behavior and the Disruptive Effects of Vessel Presence in a High‐Traffic Coastal Habitat

Marine Mammal Science, Volume 42, Issue 2, April 2026.
ABSTRACT Chronic anthropogenic activity is an ongoing threat to the marine environment and presents unique challenges in shallow, coastal habitats where harbor porpoises reside. Harbor porpoises have high metabolic needs and are highly susceptible to negative environmental factors; however, no long‐term studies have been conducted on wild populations ...
Rachel L. Lennon, Shannon Merkle, Jonas Teilmann, Lorenzo Scala, Chris Pierpoint, Victoria Hobson   +5 more
wiley   +1 more source

Post-Mortem Computed Tomography Pulmonary Findings in Harbor Porpoises (Phocoena phocoena)

Animals, 2022
The application of whole-body post-mortem computed tomography (PMCT) in veterinary and wildlife post-mortem research programs is advancing. A high incidence of pulmonary pathology is reported in the harbor porpoise (Phocoena phocoena). In this study, the
Nienke W. Kuijpers, Linde van Schalkwijk, Lonneke L. IJsseldijk, Dorien S. Willems, Stefanie Veraa   +4 more
doaj   +1 more source

Soundings: the Newsletter of the Monterey Bay Chapter of the American Cetacean Society. 2004 [PDF]

, 2004
(PDF contains 92 pages.

core  

Beyond Parasitism: Hepatic Lesions in Stranded Harbor Porpoises (Phocoena phocoena) Without Trematode (Campula oblonga) Infections [PDF]

, 2015
The liver can be an indicator of the health of an individual or of a group, which can be especially important to identify agents that can cause disease in multiple species.
Harkema, L. (Liesbeth), Hiemstra, S., Keesler, R.I., Wiersma, L.C.M. (Lidewij)   +3 more
core   +3 more sources

Soundings: the Newsletter of the Monterey Bay Chapter of the American Cetacean Society. 1996 [PDF]

, 1996
(PDF contains 96 pages.

core