Results 21 to 30 of about 29,462 (230)
Arctic cod (Boreogadus saida, Gadidae) in the Chukchi Sea and adjacent waters
Известия ТИНРО, 2021 Biology, spatial distribution, migrations, and stock dynamics are considered for arctic cod in the Russian sector of the Chukchi Sea and adjacent waters of the northern Bering Sea on the data of trawl surveys conducted by Pacific Res. Inst.
A. B. Savin
doaj +2 more sources
Gastrointestinal evacuation of particulate matter in polar cod Boreogadus saida [PDF]
Marine Ecology Progress Series, 1999 Gastrointestinal evacuation of inert particles was monitored in the polar cod Boreogadus saida (Lepechin), held at a temperature of 0.5°C. Fish (31.8 g ± 0.8 SD) were fed a moist diet, based on natural prey items, containing a particulate marker. Evacuation of marker from the gastrointestinal tract started 48 h after ingestion of a meal.
BS Sæther, JS Christiansen, M Jobling
openaire +3 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
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
Известия ТИНРО, 2022 Spatial distribution patterns and abundance of arctic cod Boreogadus saida are considered for the southwestern Chukchi Sea on the data of acoustic surveys and trawl samples obtained by TINRO research vessels in 2003–2020.
M. Kuznetsov +2 more
semanticscholar +3 more sources
Arctic ScienceConsidering seabirds as indicators of environmental change, we compared thick-billed murre ( Uria lomvia (Linnaeus, 1758)) adult and chick diet in the North Water polynya region, NW Greenland, during 1997 and 2023. In the adult murre diet, fish accounted
K. Falk +8 more
semanticscholar +3 more sources
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
Differences in neurochemical profiles of two gadid species under ocean warming and acidification. [PDF]
Front Zool, 2017 Background Exposure to future ocean acidification scenarios may alter the behaviour of marine teleosts through interference with neuroreceptor functioning.
Schmidt M +6 more
europepmc +2 more sources
Arctic cod (Boreogadus saida) hatching in the Hudson Bay system [PDF]
Elementa: Science of the Anthropocene, 2021 Buoyant Arctic cod (Boreogadus saida) eggs are found at the surface or at the ice-water interface in winter. While winter temperatures in saline waters fall below 0°C, the temperature in areas affected by under-ice river plumes is slightly higher.
Sarah Schembri +6 more
semanticscholar +2 more sources
Under-ice observations by trawls and multi-frequency acoustics in the Central Arctic Ocean reveals abundance and composition of pelagic fauna. [PDF]
Sci Rep, 2023 The rapid ongoing changes in the Central Arctic Ocean call for baseline information on the pelagic fauna. However, sampling for motile organisms which easily escape vertically towed nets is challenging.
Ingvaldsen RB +8 more
europepmc +2 more sources