Results 21 to 30 of about 41,199 (205)

Prolonged baleen hormone cycles suggest atypical reproductive endocrinology of female bowhead whales

Royal Society Open Science, 2023
Serial measurements of hormone concentrations along baleen plates allow for reconstructions of mysticete whale reproductive histories. We assessed gestation and calving interval in bowhead whales (Balaena mysticetus) by measuring progesterone, oestradiol,
N. S. J. Lysiak, S. H. Ferguson, C. A. Hornby, M. P. Heide-Jørgensen, C. J. D. Matthews   +4 more
doaj   +1 more source

Marine soundscape variation reveals insights into baleen whales and their environment: a case study in central New Zealand [PDF]

Royal Society Open Science, 2021
Baleen whales reliably produce stereotyped vocalizations, enabling their spatio-temporal distributions to be inferred from acoustic detections. Soundscape analysis provides an integrated approach whereby vocal species, such as baleen whales, are sampled ...
Victoria E. Warren, Craig McPherson, Giacomo Giorli, Kimberly T. Goetz, Craig A. Radford   +4 more
doaj   +1 more source

Monitoring fin and blue whales in the lower St. Lawrence Seaway with onshore seismometers

Remote Sensing in Ecology and Conservation, 2022
The Lower St. Lawrence Seaway (LSLS), in eastern Canada, is an important habitat for several species of endangered baleen whale. As we seek to reduce the hazards that these endangered species face from human activity, there is increasing demand for ...
Alexandre P. Plourde, Mladen R. Nedimović   +1 more
doaj   +1 more source

Eavesdropping at the Speed of Light: Distributed Acoustic Sensing of Baleen Whales in the Arctic

Frontiers in Marine Science, 2022
In a post-industrial whaling world, flagship and charismatic baleen whale species are indicators of the health of our oceans. However, traditional monitoring methods provide spatially and temporally undersampled data to evaluate and mitigate the impacts ...
Léa Bouffaut, Léa Bouffaut, Léa Bouffaut, Kittinat Taweesintananon, Kittinat Taweesintananon, Kittinat Taweesintananon, Hannah J. Kriesell, Hannah J. Kriesell, Robin A. Rørstadbotnen, Robin A. Rørstadbotnen, John R. Potter, John R. Potter, Martin Landrø, Martin Landrø, Ståle E. Johansen, Ståle E. Johansen, Jan K. Brenne, Jan K. Brenne, Aksel Haukanes, Olaf Schjelderup, Frode Storvik   +20 more
doaj   +1 more source

Scaling of maneuvering performance in baleen whales: larger whales outperform expectations [PDF]

Journal of Experimental Biology, 2022
ABSTRACT Despite their enormous size, whales make their living as voracious predators. To catch their much smaller, more maneuverable prey, they have developed several unique locomotor strategies that require high energetic input, high mechanical power output and a surprising degree of agility.
Paolo S. Segre, William T. Gough, Edward A. Roualdes, David E. Cade, Max F. Czapanskiy, James Fahlbusch, Shirel R. Kahane-Rapport, William K. Oestreich, Lars Bejder, K. C. Bierlich, Julia A. Burrows, John Calambokidis, Ellen M. Chenoweth, Jacopo di Clemente, John W. Durban, Holly Fearnbach, Frank E. Fish, Ari S. Friedlaender, Peter Hegelund, David W. Johnston, Douglas P. Nowacek, Machiel G. Oudejans, Gwenith S. Penry, Jean Potvin, Malene Simon, Andrew Stanworth, Janice M. Straley, Andrew Szabo, Simone K. A. Videsen, Fleur Visser, Caroline R. Weir, David N. Wiley, Jeremy A. Goldbogen   +32 more
openaire   +6 more sources

Bycatch of marine mammals in the Northwest Atlantic during commercial fishery (based on literature materials and observations by the Polar branch of VNIRO in 2013–2020)

Vestnik MGTU, 2022
This paper describes one of the most acute problem for both environmental companies and fisheries – bycatch of marine mammals caused by bioresource exploitation in the Northwest Atlantic (NWA).
Mishin T. V.
doaj   +1 more source

Fin Whale (<i>Balaenoptera physalus</i>) Diel Dive Patterns in a Shallow Fragmented Foraging Habitat. [PDF]

Ecol Evol
Using 27 high‐resolution biologging tags deployed on fin whales in a shallow inner‐shelf habitat along the US east coast, this study found that the whales spent more than 67% of their time within the draft depths of large commercial vessels. Feeding occurred primarily during the day, while whales remained very shallow at night during resting and ...
Adcock DL, Nowacek DP, Parks SE.
europepmc   +2 more sources

"Estimating the Impact of Whaling on Global Whale Watching" [PDF]

After the commercial whaling moratorium was enacted in 1986, whale watching became one of the fastest growing tourism industries worldwide. As whaling was regarded as an activity incompatible with whale watching, the possible resumption of commercial ...
Michael McAleer, Chi-Chung Chen, Hsiao-I Kuo   +2 more
core   +6 more sources

Adapting to a warmer ocean – seasonal shift of baleen whale movements over three decades [PDF]

, 2015
Date of Acceptance: 11/02/2015Global warming poses particular challenges to migratory species, which face changes to the multiple environments occupied during migration. For many species, the timing of migration between summer and winter grounds and also
Per J. Palsbøll (704929), Ramp, Christian, Per J Palsbøll, Per J. Palsbøll, Sears, Richard, Christian Ramp (704927), Palsbøll, Per J, Palsbøll, Per J.; id_orcid, Philip S. Hammond, Hammond, Philip S., Julien Delarue (704928), Philip S. Hammond (163103), Palsbøll, Per J., Julien Delarue, Delarue, Julian, Richard Sears (704930), Hammond, Philip Steven, Richard Sears, Delarue, Julien, Philip S Hammond, Christian Ramp   +20 more
core   +3 more sources

Long-term frequency changes of a potential baleen whale call from the central Indian Ocean during 2002–2019 [PDF]

JASA Express Letters, 2021
The multiple baleen whales of the central Indian Ocean use distinct calls, with their acoustic signatures marking their respective geographic distributions.
Nikita R. Pinto, Tarun K. Chandrayadula
doaj   +1 more source