Results 191 to 200 of about 14,897 (245)

Automated extraction of baleen whale calls based on the pseudo-Wigner-Ville distribution.

Journal of the Acoustical Society of America, 2023
Baleen whales produce a wide variety of frequency-modulated calls. Extraction of the time-frequency (TF) structures of these calls forms the basis for many applications, including abundance estimation and species recognition.
Wangyi Pu, Songzuo Liu, Xin Qing, Gang Qiao, Suleman Mazhar, Tianlong Ma   +5 more
semanticscholar   +1 more source

Formation of a fringe: A look inside baleen morphology using a multimodal visual approach

Journal of morphology, 2023
Filter‐feeding has been present for hundreds of millions of years, independently evolving in aquatic vertebrates' numerous times. Mysticete whales are a group of gigantic, marine filter‐feeders that are defined by their fringed baleen and are divided ...
M. Vandenberg, K. Cohen, R. D. Rubin, J. Goldbogen, A. Summers, E. Paig‐Tran, S. Kahane‐Rapport   +6 more
semanticscholar   +1 more source

Strontium isotopes reveal a globally unique assemblage of Early Miocene baleen whales

Journal of the Royal Society of New Zealand
The earliest Miocene (Aquitanian, 23–20 Ma) remains a critically under-sampled ‘dark age’ in cetacean evolution. This is especially true of baleen whales (mysticetes), Aquitanian specimens of which remain almost entirely unknown.
F. G. Marx, Ambre Coste, M. Richards, J. Palin, R. E. Fordyce, J. FF. R. Robinson   +5 more
semanticscholar   +1 more source

Age Determination in Baleen Whales (Mystacoceti)

Nature, 1965
THE determination of the age of cetaceans is of importance for the organization of a rational exploitation of their stock. Age determination of baleen whales by the layers of ear plugs1,2 does not always give accurate results and raises several technical difficulties3.
A V, YABLOKOV, T V, ANDREYEVA
openaire   +2 more sources

Density dependence only affects increase rates in baleen whale populations at high abundance levels

Journal of Applied Ecology
Most baleen whale populations are increasing after the end of industrial whaling, but their recovery patterns challenge long‐standing assumptions about density dependence.
Y. Kanaji, Rob Williams, Alexandre N. Zerbini, T. A. Branch   +3 more
semanticscholar   +1 more source

Juvenile morphology in baleen whale phylogeny

Naturwissenschaften, 2014
Phylogenetic reconstructions are sensitive to the influence of ontogeny on morphology. Here, we use foetal/neonatal specimens of known species of living baleen whales (Cetacea: Mysticeti) to show how juvenile morphology of extant species affects phylogenetic placement of the species.
Cheng-Hsiu, Tsai, R Ewan, Fordyce
openaire   +2 more sources

Baleen stable isotopes reveal climate-driven behavioural shifts in North Atlantic fin whales.

Science of the Total Environment
Climate variability impacts the structure and functioning of marine ecosystems and can trigger behavioural responses in organisms. We investigated whether such variability modulates diet and migration in the North Atlantic fin whale (Balaenoptera ...
Marc Ruiz‐Sagalés, Raquel García-Vernet, J. Sánchez-Espigares, Sverrir D. Halldórsson, Valérie Chosson, G. Sigurðsson, M. Vighi, Roger Lloret-Cabot, A. Borrell, A. Aguilar   +9 more
semanticscholar   +1 more source

Baleen stable isotope data

2018
This dataset contains d13C and d15N stable isotope data from northern hemisphere rorqual whale (Balaenoptera) baleen taken from our collections. This includes data from the baleen of the Hintze Hall blue whale. The data has been used in various research papers.
Jackson, Andrew, Trueman, Clive
openaire   +2 more sources

STREAMING BALEEN TANGLES TO TRAP FOOD

Journal of Experimental Biology, 2013
Diving and plunging through the waves to feed, some whales throw their jaws wide and engulf colossal mouthfuls of fish-laden water while other species simply coast along with their mouths agape (ram or skim feeding).
openaire   +2 more sources

Right Whale Feeding and Baleen Rattle

Journal of Mammalogy, 1976
Surface and subsurface feeding behavior of right whales, Eubalaena glacialis (Borowski, 1781), has been observed in Cape Cod waters since 1956. During surface feeding the whales follow discrete rows of concentrated plankton, and in subsurface feeding they also appear to be feeding on specific patches of food at particular depths and localities.
W. A. Watkins, W. E. Schevill
openaire   +1 more source