Results 21 to 30 of about 14,752 (205)

Exfoliating Whales–Sandy Bottom Contact Behaviour of Humpback Whales

Journal of Marine Science and Engineering, 2023
Cetaceans are known for their intelligence and display of complex behaviours including object use. For example, bowhead whales (Balaena mysticetus) are known to rub on rocks and some humpback whale (Megaptera novaeangliae) populations undertake lateral bottom feeding. Such underwater behaviour is difficult to observe but can play a critical role in the
Meynecke, JO, Gustafon, J, Cade, DE
openaire   +3 more sources

Modeling changes in baleen whale seasonal abundance, timing of migration, and environmental variables to explain the sudden rise in entanglements in California.

PLoS ONE, 2021
We document changes in the number of sightings and timing of humpback (Megaptera novaeangliae), blue (Balaenoptera musculus), and gray (Eschrichtius robustus) whale migratory phases in the vicinity of the Farallon Islands, California.
Kaytlin Ingman, Ellen Hines, Piero L F Mazzini, R Cotton Rockwood, Nadav Nur, Jaime Jahncke   +5 more
doaj   +1 more source

Male Humpback Whale Chorusing in Hawai‘i and Its Relationship With Whale Abundance and Density

Frontiers in Marine Science, 2021
Passive acoustic monitoring (PAM) with autonomous bottom-moored recorders is widely used to study cetacean occurrence, distribution and behaviors, as it is less affected by factors that limit other observation methods (e.g., vessel, land and aerial-based
Anke Kügler, Anke Kügler, Marc O. Lammers, Marc O. Lammers, Eden J. Zang, Eden J. Zang, Adam A. Pack, Adam A. Pack   +7 more
doaj   +1 more source

Perceptually Motivated Wavelet Packet Transform for Bioacoustic Signal Enhancement [PDF]

, 2008
A significant and often unavoidable problem in bioacoustic signal processing is the presence of background noise due to an adverse recording environment. This paper proposes a new bioacoustic signal enhancement technique which can be used on a wide range
Cohen I., Deller J. R., Fu Q., Jidong Tao, Michael T. Johnson, Osiejuk T. S., Seyfarth R. M., Shao Y., Yao Ren   +8 more
core   +2 more sources

The Role of Environmental Drivers in Humpback Whale Distribution, Movement and Behavior: A Review

Frontiers in Marine Science, 2021
Humpback whales, Megaptera novaeangliae, are a highly migratory species exposed to a wide range of environmental factors during their lifetime. The spatial and temporal characteristics of such factors play a significant role in determining suitable ...
Jan-Olaf Meynecke, Jan-Olaf Meynecke, Jan-Olaf Meynecke, Jan-Olaf Meynecke, Jasper de Bie, Jasper de Bie, Jasper de Bie, Jasper de Bie, Jan-Lukas Menzel Barraqueta, Elisa Seyboth, Subhra Prakash Dey, Subhra Prakash Dey, Serena B. Lee, Serena B. Lee, Serena B. Lee, Serena B. Lee, Saumik Samanta, Marcello Vichi, Marcello Vichi, Ken Findlay, Alakendra Roychoudhury, Brendan Mackey, Brendan Mackey   +22 more
doaj   +1 more source

Synchronous seasonal change in fin whale song in the North Pacific. [PDF]

, 2014
Fin whale (Balaenoptera physalus) song consists of down-swept pulses arranged into stereotypic sequences that can be characterized according to the interval between successive pulses. As in blue (B. musculus) and humpback whales (Megaptera novaeangliae),
Bayless, Alexandra R, Hildebrand, John A, Oleson, Erin M, Širović, Ana   +3 more
core   +5 more sources

Genetic tagging of humpback whales

Nature, 1997
The ability to recognize individual animals has substantially increased our knowledge of the biology and behaviour of many taxa. However, not all species lend themselves to this approach, either because of insufficient phenotypic variation or because tag attachment is not feasible.
Palsboll, PJ, Allen, J, Berube, M, Clapham, PJ, Feddersen, TP, Hammond, PS, Hudson, RR, Jorgensen, H, Katona, S, Larsen, AH, Larsen, F, Lien, J, Mattila, DK, Sigurjonsson, J, Sears, R, Smith, T, Sponer, R, Stevick, P, Oien, N   +18 more
openaire   +2 more sources

Enhancing AIS to Improve Whale-Ship Collision Avoidance and Maritime Security [PDF]

, 2009
Whale-ship strikes are of growing worldwide concern due to the steady growth of commercial shipping. Improving the current situation involves the creation of a communication capability allowing whale position information to be estimated and exchanged ...
Fall, Kevin, McGillivary, Philip A, Schwehr, Kurt   +2 more
core   +2 more sources

Diversity of nudibranchs in shallow water habitats in the region of Tromsø, northern Norway

Fauna Norvegica
Baseline data on the distribution of marine species is crucial to be able to address biogeographical patterns and to monitor  changes in species occurrences in marine systems.
Fredrik Broms
doaj   +1 more source

Postmortem interval applied to cetacean carcasses: Observations from laboratory and field studies with the Abrolhos Bank Region, Brazil

Forensic Science International: Animals and Environments
Estimating the postmortem interval (PMI) in cetaceans is challenging. These mammals often sink after death, later floating and traveling considerable distances before stranding, complicating decomposition stage analysis.
Hernani Gomes da Cunha Ramos, Adriana Castaldo Colosio, Milton César Calzavara Marcondes, Rodrigo Pinho Gomez Lopez, Brittany Ederer Michalski, Renato David Ghisolfi, Maria Isabel Carvalho Gonçalves, Ricardo Siqueira Bovendorp   +7 more
doaj   +1 more source