Results 71 to 80 of about 8,493 (204)

Beluga, Delphinapterus leucas, Distribution and Survey Effort in the Gulf of Alaska [PDF]

, 2000
Beluga, Delphinapterus leucas, distribution in the Gulf of Alaska and adjacent inside waters was examined through a review of surveys conducted as far back as 1936.
Laidre, Kristin L., Mahoney, Barbara A., Rugh, David J., Shelden, Kim E. W.   +3 more
core  

Low-frequency components in harbor porpoise (Phocoena phocoena) clicks : communication signal, by-products, or artifacts? [PDF]

, 2008
Author Posting. © Acoustical Society of America, 2008. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution.
Amundin M., Andersen S., Bradbury J. W., Dubrovskii N. A., Dusenbery D. B., Janik V. M., Kamminga C., Koschinski S., M. Hansen, M. Wahlberg, Madsen P. T., Madsen P. T., Morisaka T., P. T. Madsen, Schevill W. E., Teilmann J., Tyack P., Urick R. J., Verboom W. C., Vinther M., Weber P. J.   +20 more
core   +1 more source

Modelling the effect of varying metabolic rate and cardiac output on estimated tissue and blood O2 and CO2 levels in an extreme deep‐diver, the goose‐beaked whale (Ziphius cavirostris)

Experimental Physiology, EarlyView.
Abstract High‐resolution movement data from Cuvier's beaked, or goose‐beaked whale (Ziphius cavirostris, hereafter Ziphius, n = 8) tag deployments (4.1–19.2 days) were used to estimate blood and tissue O2 and CO2 levels. Acceleration and magnetometry data were used to estimate the locomotion cost (LC) from the relationship between activity and the O2 ...
Andreas Fahlman, Gregory S. Schorr, David A. Sweeney, Brenda K. Rone, Shannon N. Coates, Austin S. Allen, Lucia M. Martín López, Susan M. Jarvis, Erin A. Falcone   +8 more
wiley   +1 more source

Harbour Porpoises Are Flexible Predators Displaying Context‐Dependent Foraging Behaviours

Ecology and Evolution
Opportunistic mobile predators can adapt their behaviour to specific foraging scenarios, allowing them to target diverse prey resources. An interesting example is the harbour porpoise (Phocoena phocoena), a marine mammal with a huge energy demand feeding
Johanna Stedt, Héloïse Hamel, Sara Torres Ortiz, Jakob Højer Kristensen, Magnus Wahlberg   +4 more
doaj   +1 more source

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

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

Distribution and density of harbour popoises in Dutch North Sea waters [PDF]

, 2009
Aerial surveys were conducted to investigate harbour porpoise density and distribution in Dutch waters. Surveys were conducted following standard line transect distance sampling methodology on tracklines providing a representative coverage of the study ...
Scheidat, M., Verdaat, J.P.
core   +1 more source

Åtgärdsprogram för tumlare : Phocoena phocoena (Linnaeus, 1758)

, 2021
The harbour porpoise (Phocoena phocoena) is one of the smallest toothed whale species. It is found in cold and temperate waters of the Northern Hemisphere. Within Swedish waters there are three distinct populations of harbour porpoises: the North Sea population, the Belt Sea population, and Baltic Proper population.
openaire   +2 more sources

Marine Mammals in the Anthropocene: Developing a Systematic Evidence Base of Threats to Nineteen Species

Mammal Review, Volume 56, Issue 1, March 2026.
Marine mammals are vulnerable to a variety of anthropogenic threats, yet a global systematic map of the literature for 19 species found both spatial and temporal disparity in research effort between threats and between species. There are knowledge gaps for species and threats, with effort unequal across many species' ranges.
Emily L. Hague, Rachael R. Sinclair, Joanna L. Kershaw, Davina Derous, Ross M. Culloch, Carol E. Sparling, Nicholas Baker‐Horne, Marija Sciberras, Teresa F. Fernandes, Lauren H. McWhinnie   +9 more
wiley   +1 more source

Vocalization Characteristics of the Indo‐Pacific Humpback Dolphins (Sousa chinensis) in Xiamen Bay With Insights on Regional Differences

Ecology and Evolution, Volume 16, Issue 2, February 2026.
The Indo‐Pacific humpback dolphin population in Xiamen Bay was divided into two geographically separated but socially associated communities inhabiting the West and East sub‐regions. Based on 3 years of boat‐based surveys, this study established baseline acoustic characteristics and investigated whether vocal patterns varied with habitat conditions ...
Xuming Peng, Zhiyuan Hua, Fuxing Wu, Fei Zhang, Weijie Fu, Yupeng Li, Chuang Zhang, Wenzhan Ou, Wenjie Xiang, Bing Zhou, Zhongchang Song, Yu Zhang   +11 more
wiley   +1 more source