Results 31 to 40 of about 6,438 (222)
High‐frequency aerial surveys inform the seasonal distribution of Cook Inlet beluga whales
Wildlife Society Bulletin, 2018 Management options to mitigate potential effects from the overlap of anthropogenic and marine mammal activities require understanding of species’ habitat use and movement patterns.
Nathan Wolf +5 more
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Range contraction in a beluga whale population [PDF]
Endangered Species Research, 2010 The small, isolated population of beluga whales Delphinapterus leucas in Cook Inlet, Alaska, USA, has had a distinct contraction in range over the past 3 decades. This contraction is a function of a decline in abundance, evidently caused, at least in part, by high takes during unregu- lated subsistence hunting.
DJ Rugh, KEW Shelden, RC Hobbs
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An improved multi-strategy beluga whale optimization for global optimization problems
Mathematical Biosciences and Engineering, 2023 This paper presents an improved beluga whale optimization (IBWO) algorithm, which is mainly used to solve global optimization problems and engineering problems.
Hongmin Chen +6 more
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Propagation of beluga whale echolocation signals [PDF]
The Journal of the Acoustical Society of America, 1984 The propagation characteristics of high-frequency echolocation signals (peak energies above 100 kHz) of the beluga whale, Delphinapterus leucas were determined by a series of measurements conducted while the animal performed a target-detection task. The whale was trained to station on a “bite-plate” so that its projected beam could be measured in the ...
Whitlow W. L. Au +2 more
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An epigenetic clock to estimate the age of living beluga whales [PDF]
Evolutionary Applications, 2020 AbstractDNA methylation data facilitate the development of accurate molecular estimators of chronological age or “epigenetic clocks.” We present a robust epigenetic clock for the beluga whale, Delphinapterus leucas, developed for an endangered population in Cook Inlet, Alaska, USA.
Eleanor K. Bors +8 more
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Pêches des bélugas, des anguilles et des esturgeons noirs de l’estuaire du St-Laurent
Revue d'ethnoécologie, 2018 This paper presents an ethnographic examination of beluga whale, eel and black sturgeon fisheries, focusing more particularly on their exploitation, commodification and conservation.
Sabrina Doyon
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First recorded ice entrapment of a beluga whale (Delphinapterus leucas) in east Greenland
Polar ResearchBeluga whales are rare along the coast of east Greenland and the closest recognized stock occurs around Svalbard. Here we report on an ice entrapment of an adult beluga whale (Delphinapterus leucas) in north-east Greenland.
Kristin L. Laidre +4 more
doaj +1 more source
Arctic Science, 2018 This paper documents Inuvialuit traditional ecological knowledge of beluga, including ecology and behavior, hunting techniques, and food preparation under changing climatic conditions in Tuktoyaktuk, NT.
Devin Waugh +5 more
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Beluga whales in the western Beaufort Sea : current state of knowledge on timing, distribution, habitat use and environmental drivers [PDF]
, 2018 ECG was supported by a National Research Council-National Academy of Sciences Postdoctoral Fellowship.The seasonal and geographic patterns in the distribution, residency, and density of two populations (Chukchi and Beaufort) of beluga whales ...
Berchok, Catherine L. +9 more
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Lateralized sound production in the beluga whale (Delphinapterus leucas) [PDF]
Journal of Experimental Biology, 2020 Like other toothed whales, belugas produce sound through pneumatic actuation of two phonic lip pairs, but it is unclear whether both pairs are actuated concurrently to generate a single sound (the dual actuation hypothesis) or laterally in the production of their rich vocal repertoires.
Audra E. Ames +2 more
openaire +4 more sources