Results 31 to 40 of about 28,440 (223)
Modeling Ringed and Bearded Seal Future Habitats Indicates Stability, Shifts, and Refugia. [PDF]
Glob Chang BiolEvery year, ringed seals and bearded seals rely on specific ice and snow conditions to support events such as feeding or reproduction. With Earth System Models, we simulate habitat over 1850–2100, revealing a relatively stable past habitat contrasting with rapid regional shifts in contemporary simulations and future projections.
Farnole P +5 more
europepmc +2 more sources
Impact of Tusk Anomalies on the Long-Term Foraging Ecology of Narwhals. [PDF]
Ecol EvolWe combined stable δ13C and δ15N isotope analysis and genetic sexing to investigate whether narwhals with dental anomalies have a distinct long‐term foraging ecology. Our results showed no difference in stable isotope signature of two‐tusked male and one‐tusked female narwhals relative to normal‐tusked narwhals, indicating that an extra tusk does not ...
Louis M +11 more
europepmc +2 more sources
Arctic Science, 2021 Climate change is rapidly modifying marine fish assemblages in the Arctic. As fish eggs and larvae have a narrower thermal tolerance than nonreproductive adults, their response to increasing temperatures is likely one of the main drivers of these changes.
Caroline Bouchard +3 more
doaj +1 more source
Frontiers in Marine Science, 2023 MicroRNAs (miRNAs) are epigenetic markers with a key role in post-transcriptional gene regulation. Several studies have described the dysregulation of miRNAs in temperature and hypoxic stress responses of marine organisms, but their role in the response ...
Cara C. Schweitzer +6 more
doaj +1 more source
Drivers of population dynamics and juvenile mortality in Northwest Atlantic harp seals. [PDF]
Ecol ApplAbstract Human‐induced threats to terrestrial and marine wildlife are on the rise, and while some species face a single major threat, others face multiple concurrent threats. Harp seals, an abundant pinniped in the North Atlantic that was historically depleted by human harvest, are one such species. Although commercial and subsistence harvests remain a
Tinker MT +5 more
europepmc +2 more sources
Elem Sci Anth, 2023 Arctic cod (Boreogadus saida) is the most abundant forage fish species in Arctic seas and plays a pivotal role in the transfer of energy between zooplankton and top predators.
J. Herbig +7 more
semanticscholar +1 more source
Marine Environmental Research, 2021 The polar cod (Boreogadus saida) has a circumpolar distribution and is the most abundant planktivorous fish in the Arctic. Declining sea-ice coverage impacts polar cod directly and also facilitates expansion of human activities in the region leading to ...
Magnus Aune +11 more
semanticscholar +1 more source
Summer foraging behaviour of shallow-diving seabirds and distribution of their prey, Arctic cod (Boreogadus saida), in the Canadian Arctic [PDF]
Polar Research, 2012 Productive areas in the Canadian Arctic seasonally provide top predators with accessible and often predictable sources of energy. Arctic cod (Boreogadus saida) aggregate in shallow bays during the summer and are exploited by seabirds and marine mammals ...
Jordan K. Matley +2 more
doaj +1 more source
Journal of Toxicology and Environmental Health, Part A, 2023 Fish early life stages are well known for their sensitivity to crude oil exposure. However, the effect of crude oil exposure on adults and their gametes during their spawning period is not well studied.
Leah C. Strople +13 more
semanticscholar +1 more source
Marine Ecology Progress Series, 2022 : The Arctic marine ecosystem is changing fast due to climate change, emphasizing the need for solid ecological baselines and monitoring. The polar cod Boreogadus saida functions as a key species in the Arctic marine food web. We investigated the stomach
S. M. Maes +7 more
semanticscholar +1 more source