Results 51 to 60 of about 5,141 (217)
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
core +1 more source
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
Status of the belugas of the St Lawrence estuary, Canada
NAMMCO Scientific Publications, 2002 A population of belugas (Delphinapterus leucas) inhabiting the estuary of the St Lawrence river in Quebec, Canada, was depleted by unregulated hunting, not closed until 1979. Surveys in 1977 showed only a few hundred in the population. Surveys since then
Michael CS Kingsley
doaj +1 more source
Status of the Beluga, Delphinapterus leucas, in the Beaufort Sea
The Canadian field-naturalist, 1997 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Finley, Kerwin J. +2 more
openaire +2 more sources
Persistent Mü̈llerian duct syndrome in a beluga whale Delphinapterus leucas [PDF]
Diseases of Aquatic Organisms, 2019 This case study describes a persistent Mü̈llerian duct syndrome (PMDS), a rare form of XY disorder of sex development (DSD), in a mature (>15 yr) beluga whale Delphinapterus leucas. The phenotypically and genetically male beluga whale had both Mü̈llerian (paramesonephric) and Wolffian (mesonephric) duct derivatives. A mild hydrometra was present. Gross
Raphaela, Stimmelmayr +2 more
openaire +2 more sources
Zoo Biology, EarlyView.This study established the first fecal hormonal reference values (P4/E2) for the Greater Caribbean manatee. Using non‐invasive ELISA, the authors found no significant differences between mature and immature females, highlighting that long‐term monitoring and ultrasounds are essential to fully understand their complex reproductive cycles.
Vanessa Bermúdez‐Cardona +3 more
wiley +1 more source
Beluga, Delphinapterus leucas, Habitat Associations in Cook Inlet, Alaska [PDF]
, 2000 A review of available information describing habitat associations for belugas, Delphinapterus leucas, in Cook Inlet was undertaken to complement population assessment surveys from 1993-2000.
Litzky, Laura K. +4 more
core
Visibility of St Lawrence belugas to aerial photography, estimated by direct observation
NAMMCO Scientific Publications, 2002 The depleted population of belugas (Delphinapterus leucas) inhabiting the St Lawrence estuary, Canada, was monitored by periodic photographic aerial surveys. In order to correct counts made on aerial survey film and to obtain an estimate of the true size
Michael CS Kingsley, Isabelle Gauthier
doaj +1 more source
Integrative Zoology, EarlyView.The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic +10 more
wiley +1 more source
Beluga, Delphinapterus leucas, Distribution and Survey Effort in the Gulf of Alaska [PDF]
, 2000 Beluga, Delphinapterus leucas, distribution in the Gulf of Alaska and adjacent inside waters was examined through a review of surveys conducted as far back as 1936.
Laidre, Kristin L. +3 more
core