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TV-MUC video compilation from the Laptev Sea continental slope (Arctic Ocean)...
Video images were obtained with a TV-guided multiple corer (MUC) from a transect down the Laptev Sea continental slope, covering water depths between 60 and 3000 m. Video images... -
Benthic biogeochemical parameters measured during Polarstern expedition PS94 ...
During the RV Polarstern expedition PS94, we gathered sediment samples in the Barents Sea and the central Arctic Ocean by deploying both a multiple corer (MUC) and a giant... -
Dissolved organic carbon in sediments of the central Arctic Ocean collected d...
Marine organic matter (OM) sinks from surface waters to the seafloor via the biological pump. Benthic communities, which use this sedimented OM as energy and carbon source,... -
Photosynthetic production in the Central Arctic during POLARSTERN cruise ARK-...
The ice-covered Central Arctic Ocean is characterized by low primary productivity due to light and nutrient limitations. It has been speculated that the recent reduction in ice... -
Solar radiation over and under sea ice and photographic quantification of Ice...
The ice cover of the Arctic Ocean has been changing dramatically in the last decades and the consequences for the sea-ice associated ecosystem remain difficult to assess. Algal... -
Total oxygen uptake rates measured during POLARSTERN cruise PS94 (TransArcII)...
Total oxygen uptake rates were assessed by conducting sediment core incubations. After MUC retrieval and sediment core preparation on deck, three cores were taken to a dark,... -
Chlorophyll pigments and total organic carbon measured during POLARSTERN crui...
Chlorophyll pigments:Subsamples of the top first cm of sediment were obtained using cut-off plastic syringes. Samples for chlorophyll pigment analyses were stored dark and... -
Microbial cell numbers measured during POLARSTERN cruise PS94 (TransArcII) to...
For the determination of prokaryotic cell numbers, 1 cm³ sediment was fixed with sterile filtered formalin/seawater at a final concentration of 2% and stored at 4°C until... -
Diffusive oxygen uptake rates measured during POLARSTERN cruise PS94 (TransAr...
We assessed diffusive oxygen uptake rates by measuring ex situ porewater oxygen microprofiles. Sediment cores were placed in a water bath and a stirring device was implemented... -
Abundance of Prokaryotes in deep-sea sediments analyzed by CARD-FISH
We fixed 0.5 g aliquots of sediment with a 4% formaldehyde solution for 2-4 h, washed the fixed sediments three times with 1x phosphate-buffered saline (PBS), before storing... -
Normalized peak intensities from bottom and pore water solid phase extracted ...
This dataset has no description
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Contribution of formulae and elemental ratios of solid phase extracted dissol...
Molecular formulae were additionally associated with different molecular categories because less than 6% of the DOM has been identified on a molecular level.Molecular categories... -
Molecular formulae with CHONSP elements from POLARSTERN cruise ARK-XXVII/3 (I...
Molecular formula calculation for all samples was performed using an in-house Matlab (2010) routine that searches, with an error of < 0.5 ppm, for all potential combinations... -
Total dissolved organic carbon and total dissolved nitrogen in sediment pore ...
During the RV Polarstern cruise ARK-XXVII/3 to the Arctic Ocean in summer 2012, when sea ice declined to a record minimum bottom, water and sediment pore water samples were... -
Integrated nutrients concentrations calculated for under sea-ice water sample...
This dataset has no description
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Integrated nutrients concentrations calculated for sea-ice core samples durin...
This dataset has no description
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Integrated nutrients concentrations calculated for melt pond water samples du...
This dataset has no description
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Integrated nutrients concentrations calculated for CTD water samples during P...
Depth, water [m] = Euphotic zone depth weighed average -
Integrated net primary production during POLARSTERN cruise ARK-XXVII/3 (IceAr...
Depth-integrated in situ rates were calculated for each environment as a function of the available photosynthetically active radiation (PAR). Irradiance profiles were calculated... -
Carbon uptake rate calculated for CTD water samples during POLARSTERN cruise ...
Net Primary Production was measured using the 14C uptake method with minor modifications. Seawater samples were spiked with 0.1µCi ml-1 of 14C labelled sodium bicarbonate...
