Results 11 to 20 of about 1,112 (162)

Beluga whale (Delphinapterus leucas) acoustic foraging behavior and applications for long term monitoring. [PDF]

open access: yesPLoS ONE, 2021
Cook Inlet, Alaska, is home to an endangered and declining population of 279 belugas (Delphinapterus leucas). Recovery efforts highlight a paucity of basic ecological knowledge, impeding the correct assessment of threats and the development of recovery ...
Manuel Castellote   +6 more
doaj   +2 more sources

Genome Sequence of an Alphaherpesvirus from a Beluga Whale (<i>Delphinapterus leucas</i>). [PDF]

open access: yesGenome Announc, 2017
ABSTRACT Beluga whale alphaherpesvirus 1 was isolated from a blowhole swab taken from a juvenile beluga whale. The genome is 144,144 bp in size and contains 86 putative genes. The virus groups phylogenetically with members of the genus Varicellovirus in subfamily Alphaherpesvirinae ...
Davison AJ   +6 more
europepmc   +4 more sources

Selection of reference genes for RT-qPCR studies in blood of beluga whales (Delphinapterus leucas) [PDF]

open access: yesPeerJ, 2016
Reverse transcription quantitative PCR (RT-qPCR) is used for research in gene expression, and it is vital to choose appropriate housekeeping genes (HKGs) as reference genes to obtain correct results.
I-Hua Chen   +7 more
doaj   +3 more sources

Blow collection as a non-invasive method for measuring cortisol in the beluga (Delphinapterus leucas). [PDF]

open access: yesPLoS ONE, 2014
Non-invasive sampling techniques are increasingly being used to monitor glucocorticoids, such as cortisol, as indicators of stressor load and fitness in zoo and wildlife conservation, research and medicine. For cetaceans, exhaled breath condensate (blow)
Laura A Thompson   +4 more
doaj   +2 more sources

Beluga (Delphinapterus leucas) granulocytes and monocytes display variable responses to in vitro pressure exposures [PDF]

open access: yesFrontiers in Physiology, 2015
While it is widely known that marine mammals possess adaptations which allow them to make repetitive and extended dives to great depths without suffering ill effects seen in humans, the response of marine mammal immune cells to diving is unknown. Renewed
Laura A Thompson, Tracy A Romano
doaj   +2 more sources

Photographic evidence of tagging impacts for two beluga whales from the Cumberland Sound and western Hudson Bay populations

open access: yesArctic Science, 2022
Beluga whale (Delphinapterus leucas (Pallas, 1776)) movements, habitat use, and diving behaviour have been studied using satellite-linked transmitters for decades.
Kasey P. Ryan   +4 more
doaj   +1 more source

Banded karyotypes of a belukha whale, Delphinapterus leucas [PDF]

open access: yesHereditas, 2009
Chromosomes of a belukha whale, Delphinapterus leucas (Monodontidae), were studied by homogeneous staining, G- and C-sequential banding, direct C-banding and N-banding. The belukha has a typical cetacean 2n=44 karyotype. Banded karyotypes were compared with previously published karyotypes of Monodon monoceros and delphinid cetaceans.
G H, Jarrell, U, Arnason
openaire   +2 more sources

Lateralized sound production in the beluga whale (Delphinapterus leucas) [PDF]

open access: yesJournal 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

An observation of white whale (Delphinapterus leucas) mating behaviour in the wild

open access: yesPolar Research, 2023
Herein we describe mating behaviour observed in a group of 20 white whales in Svalbard, Norway. A single female was the centre of attention during the 45-minute encounter, which was observed, photographed and videotaped at an ice edge in Storfjorden in ...
Christian Lydersen   +2 more
doaj   +1 more source

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