Results 61 to 70 of about 552 (176)
Frontiers 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
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Size and trends of the bowhead whale, beluga and narwhal stocks wintering off West Greenland
NAMMCO Scientific Publications, 2002 To assess the size and trends of the abundance of the bowhead whale (Balaena mysticetus), the beluga, or white whale (Delphinapterus leucas), and the narwhal (Monodon monoceros) visual aerial surveys were conducted in West Greenland in March 1998 and ...
MP Heide-Jørgensen, Mario Acquarone
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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
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Foraging ecology of ringed seals (Pusa hispida), beluga whales (Delphinapterus leucas) and narwhals (Monodon monoceros) in the Canadian High Arctic determined by stomach content and stable isotope analysis [PDF]
Polar Research, 2015 Stomach content and stable isotope analysis (δ13C and δ15N from liver and muscle) were used to identify habitat and seasonal prey selection by ringed seals (Pusa hispida; n=21), beluga whales (Delphinapterus leucas; n=13) and narwhals (Monodon monoceros;
Jordan K. Matley +2 more
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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
Frontiers in Marine ScienceThe St. Lawrence Estuary (SLE) belugas (Quebec, Canada) are an endangered population whose numbers remain low despite ongoing conservation efforts. Multiple anthropogenic factors and changing environmental conditions are thought to have contributed to ...
Meredith Sherrill +10 more
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Catch statistics for belugas in West Greenland 1862 to 1999
NAMMCO Scientific Publications, 2002 Information and statistics including trade statistics on catches of white whales or belugas (Delphinapterus leucas) in West Greenland since 1862 are presented.
MP Heide-Jørgensen, A Rosing-Asvid
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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 +5 more
wiley +1 more source
NAMMCO Scientific Publications, 2002 Three ice entrapments of Monodontids have been reported in the western North Atlantic since 1993. Hunters in Disko Bay, West Greenland, discovered one in March 1994 that included about 150 narwhals (Monodon monoceros).
MP Heide-Jørgensen +3 more
doaj +1 more source
Marine Mammal Science, Volume 42, Issue 3, July 2026.ABSTRACT Monitoring pregnancy rates can provide vital information regarding a population's viability and trajectory. This study combined drone‐based photogrammetry with biopsy darting to determine if the Scaled Mass Index (SMI) estimated from aerial images can be used to identify pregnant, free‐ranging St.
Meredith Sherrill +5 more
wiley +1 more source