Results 31 to 40 of about 9,273 (211)

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

Slocum gliders provide accurate near real-time estimates of baleen whale presence from human-reviewed passive acoustic detection information [PDF]

, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Baumgartner, M. F., Bonnell, J., Corkeron, P. J., Van Parijs, S. M., Hotchkin, C., Hodges, B.
Baumgartner, Mark F., Bonnell, Julianne M., Bort Thornton, Jacqueline, Bruner, Scott M., Corkeron, Peter, Hodges, Benjamin A., Hotchkin, Cara, Mensi, Bryan L., Van Parijs, Sofie M.   +8 more
core   +1 more source

Estimating blue whale skin isotopic incorporation rates and baleen growth rates: Implications for assessing diet and movement patterns in mysticetes. [PDF]

PLoS ONE, 2017
Stable isotope analysis in mysticete skin and baleen plates has been repeatedly used to assess diet and movement patterns. Accurate interpretation of isotope data depends on understanding isotopic incorporation rates for metabolically active tissues and ...
Geraldine Busquets-Vass, Seth D Newsome, John Calambokidis, Gabriela Serra-Valente, Jeff K Jacobsen, Sergio Aguíñiga-García, Diane Gendron   +6 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

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   +7 more sources

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

Lethal entanglement in baleen whales [PDF]

Diseases of Aquatic Organisms, 2011
Understanding the scenarios whereby fishing gear entanglement of large whales induces mortality is important for the development of mitigation strategies. Here we present a series of 21 cases involving 4 species of baleen whales in the NW Atlantic, describing the available sighting history, necropsy observations, and subsequent data analyses that ...
Cassoff, Rachel M., Moore, Kathleen M. T., McLellan, William A., Barco, Susan G., Rotstein, David S., Moore, Michael J.   +5 more
openaire   +3 more sources

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

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

Lifetime glucocorticoid profiles in baleen of right whale calves: Potential relationships to chronic stress of repeated wounding by Kelp Gulls [PDF]

, 2018
Baleen tissue accumulates stress hormones (glucocorticoids, GC) as it grows, along with other adrenal, gonadal and thyroid hormones. The hormones are deposited in a linear fashion such that a single plate of baleen allows retrospective assessment and ...
Ajó, Alejandro A. Fernández, Buck, Charles Loren, Di Martino, Matias, Hunt, Kathleen E., Marón, Carina Flavia, Rowntree, Victoria, Sironi, Mariano, Uhart, Marcela María   +7 more
core   +1 more source