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Piston coring in the central Arctic with icebreaker Oden

... and why has Arctic sea ice cover varied in the recent geologic past? In the project Palaeoceanography of the Arctic – Water Masses, Sea Ice, and Sediments (PAWS), we utilise the new sea ice proxy IP25, a biomarker from ice algae, together ...

Cruise report

Population dynamics of Arctic foxes at Karrak Lake

Ear-tagged Arctic fox on a windy day in June 2011. Photo: Gustaf Samelius This study examines various aspects of the population dynamics of arctic foxes and how they vary with fluctuations in lemming abundance – the main food of arctic foxes in ...

Cruise report

Organism adaptations to extreme Antarctic waters

A copepod (about 1 mm long) with bright red photoprotective pigmentation (carotenoids). Photo: Hans Berggren The ozone hole above Antarctica has increased considerably during the last ...

Cruise report

Physical oceanography

... measurements. Photo: Anna Wåhlin The glaciers emptying into the Amundsen Sea in West Antarctica have displayed accelerated thinning in recent decades. There are clear signs that this is caused by increased ocean-induced melting, related to ...

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Implications of increasing CO2

Sea-ice and snow sampling. Photo: Agneta Fransson What is the effect of sea ice and glacial meltwater on the CO2 exchange and calcium carbonate saturation state (i.e., Ω)? We ...

Cruise report

Health assessment of Antarctic seals

Weddell seal basking in the sun. Photo: Karin Hårding We have investigated the health status of three endemic seal species, i.e., the Ross, Weddell, and crabeater seals. Our main interest was ...

Cruise report

The frozen Garden of Eden: on the hunt for Eocene mammals

... mammals of the southern hemisphere evolve and spread? The record of Antarctic mammals and other terrestrial vertebrates is still very poor. New specimens of mammals, other vertebrates, and fossil plants would give a more precise picture ...

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