Results 61 to 70 of about 5,120 (227)

Multi‐Marker Mitochondrial Analysis Reveals Genetic Diversity and Phylogenetic Relationships of Black Sea Sturgeons (Acipenseridae)

Ecology and Evolution, Volume 16, Issue 7, July 2026.
Sturgeons are an important species due to their complex genetic structure and evolutionary characteristics. Unfortunately, they are threatened with extinction due to illegal and overfishing, as well as the loss of their natural habitats. In our work, we examine the genetic diversity of four sturgeon species that inhabit the Black Sea basin and its ...
György Deák, Raluca Prangate, Monica Matei, Mădălina Boboc, Elena Holban   +4 more
wiley   +1 more source

(Table 1) Beluga (Delphinapterus leucas) sightings in the eastern Beaufort Sea

, 2011
(Table 1) Beluga (Delphinapterus leucas) sightings in the eastern Beaufort ...
Stirling, Ian, Richard, Pierre R, Barber, David G, Asselin, Natalie C, Steven H Ferguson (7995512), Ian Stirling (315316), Pierre R Richard (7995515), Ferguson, Steven H, Natalie C Asselin (7995506), David G Barber (7995509)   +9 more
core   +1 more source

Relation between beluga whale aggregations and sea temperature on climate change forecasts

Frontiers in Marine Science
Climate change has been shown to alter the spatial distribution of whales and other marine mammals. Fast changing ocean temperatures may also affect the spatial distribution of whales at a finer scale, namely within populations, including aggregation ...
Marga L. Rivas, Emilio Guirado, Zaida Ortega   +2 more
doaj   +1 more source

Revisiting the status of the Arctic's Last Ice Area as a refuge for marine predators

Ecosphere, Volume 17, Issue 7, July 2026.
Abstract The Last Ice Area (LIA), located north of the Canadian Arctic Archipelago and Greenland, has the Arctic's oldest and thickest sea ice. The LIA is hypothesized to be a potential climate refuge for ice‐dependent top predators as Arctic sea ice continues to decline.
Kristin L. Laidre, Axel Schweiger, Jinlun Zhang, Benjamin Cohen, Michael Steele, Steven H. Ferguson, G. W. K. Moore   +6 more
wiley   +1 more source

Morphofunctional assessment of domesticated and aquacultured beluga females [PDF]

, 2021
In the early 80-ies of the last century, there was a sharp decline in the population of the Caspian beluga in Russia. Its fishing was prohibited, except for catching for reproduction and scientific purposes.
Ponomarev Sergey, Akhmedzhanova Aliya, Yulia Fedorovykh, Sergey Ponomarev, Fedorovykh Yulia, Levina Olga, Vyatchin Vladislav, Evgeniy Dutikov, Vladislav Vyatchin, Aliya Akhmedzhanova, Dutikov Evgeniy, Olga Levina   +11 more
core   +1 more source

Satellite imagery survey of beluga whales in the Severn and Winisk River estuaries

Arctic Science
Very high resolution (VHR) satellite imagery has expanded the scale at which researchers can monitor marine mammal species in Arctic and subarctic regions.
Jordan B. Stewart, Marianne Marcoux, Cortney A. Watt   +2 more
doaj   +1 more source

Oceanographic, ecological, and socio-economic impacts of an unusual summer storm in the Mackenzie Estuary

Arctic Science, 2020
With increased warming and open water due to climate change, the frequency and intensity of storm surges is expected to increase. Although studies have shown that strong storms can negatively impact Arctic ecosystems, the impact of storms on Arctic ...
Kevin C. Scharffenberg, Dustin Whalen, Shannon A. MacPhee, Marianne Marcoux, John Iacozza, Gail Davoren, Lisa L. Loseto   +6 more
doaj   +1 more source

Balancing Aerobic and Anaerobic Metabolism, and Its Effect on Recovery Time in Freely‐Diving Steller Sea Lions (Eumetopias jubatus)

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT As breath‐hold divers, marine mammals must coordinate their use of both aerobic and anaerobic metabolism to maximize their time at depth. One indication of the relative reliance between these two energy‐producing systems is the aerobic dive limit (ADL), defined as the dive duration where post‐dive blood lactate concentrations surpass resting ...
Aaron S. Purdy, David A. S. Rosen
wiley   +1 more source

Harbor Porpoise and Beluga Whale Habitat Use in the Saguenay‐St. Lawrence Marine Park (Canada) Revealed by a Combination of Visual and Acoustic Survey

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Studying habitat use of cetaceans that spend most of their lives underwater poses challenges, prompting the use of complementary methods. Non‐invasive methods, land‐based surveys (LBS) and passive acoustic monitoring (PAM), were used to characterize occurrence patterns of beluga whales, harbor porpoises, and vessels in the Saguenay–St ...
Coralie Bernier‐Breton, Cristiane C. A. Martins, Gesche Winkler, Pierre Mercure‐Boissonnault, Léna Velé, Pierre Cauchy   +5 more
wiley   +1 more source

Alphaherpesvirus: isolation, identification, partial characterisation, associated pathologic findings, and epidemiology in beluga whales (Delphinapterus leucas) in Alaska and Arctic Canada

Arctic Science, 2018
Live, dead stranded, and harvested belugas (Delphinapterus leucas) in Alaska and the western Canadian Arctic were screened for viruses utilizing a primary beluga cell line. Samples consisted of swabs from blowhole, anus, and genital tract.
Ole Nielsen, Kathleen A. Burek-Huntington, Lisa L. Loseto, Maria Morell, Carlos H. Romero   +4 more
doaj   +1 more source