Results 51 to 60 of about 434 (160)
Weather Effects on the Haul‐Out Behaviour of Ringed Seals in the Amundsen Gulf
ABSTRACT Ringed seals (Pusa hispida) use sea ice year‐round in the Arctic as a platform for giving birth, raising young and moulting. Arctic ringed seal population assessments are typically conducted by aerial surveys flown in the spring, when many seals haul out. However, many factors can influence whether a seal is hauled out on the ice and available
Llewelyn Ward +8 more
wiley +1 more source
This work presents biological information for polar cod (Boreogadus saida) collected with a Campelen 1800 shrimp bottom trawl in Kongsfjorden (two stations located in the inner part of the fjord adjacent to the glacier) and Rijpfjorden (one station at ...
Dariusz P. Fey, Jan M. Węsławski
doaj +1 more source
Deep vision: an in-trawl stereo camera makes a step forward in monitoring the pelagic community. [PDF]
Ecosystem surveys are carried out annually in the Barents Sea by Russia and Norway to monitor the spatial distribution of ecosystem components and to study population dynamics.
Melanie J Underwood +3 more
doaj +1 more source
ABSTRACT Growth and survival rates during the early life stages are key vital parameters driving population dynamics of fish. Growth rates generally present a pattern of autocorrelation. Growth autocorrelation is stronger when faster and slower growing individuals continue to grow faster and slower.
José María Quintanilla +6 more
wiley +1 more source
Fish in Kongsfjorden under the influence of climate warming
IntroductionKongsfjorden is being impacted by climate warming, which has fostered the increase of abundance of Atlantic fish (e.g. Atlantic cod, Gadus morhua), fish that are non-endemic for Kongsfjorden.
Natalia Gorska +6 more
doaj +1 more source
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 increasing anthropogenic pressures on biota.
Magnus Aune +11 more
openaire +2 more sources
Characterization of the abiotic drivers of abundance of nearshore Arctic fishes
Fish are critical ecologically and socioeconomically for subsistence economies in the Arctic, an ecosystem undergoing unprecedented environmental change.
Noah S. Khalsa +3 more
doaj +1 more source
Spring phenology of the Arctic Ocean shelf production system
The shelf areas of the Arctic Ocean host some of the world’s most productive marine ecosystems, yet their under-ice early-season phenology and inter-trophic dynamics remain poorly understood amid rapid climate change.
Mats Huserbråten, Frode B. Vikebø
doaj +1 more source
Diet of the ringed seal (Phoca hispida) in Greenland
Analysis of 454 stomachs of ringed seals (Phoca hispida) collected from the Inuit hunt in six municipalities in West Greenland and 30 alimentary tracts collected by scientists in East Greenland, showed seasonal and regional differences in the diet.
Helle Siegstad +3 more
doaj +1 more source
Community structure and range shifts in Arctic marine fish under climate change
Arctic marine ecosystems are rapidly transforming due to climate change. Warming temperatures and shrinking sea ice are enabling boreal fish to expand northward, possibly disturbing cold‐adapted Arctic species assemblages. Species range shifts have been documented in the Bering and Barents Seas, raising concerns about ecosystem restructuring.
Virginie Marques +7 more
wiley +1 more source

