Blar i NTNU Open på forfatter "Digernes, Maria Guadalupe"
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Arctic Ocean’s wintertime mercury concentrations limited by seasonal loss on the shelf
Kohler, Stephen Gustav; Heimbürger-Boavida, Lars-Eric; Petrova, Mariia V.; Digernes, Maria Guadalupe; Sanchez, Nicolas; Dufour, Aurelie; Simic, Anica; Ndungu, Kuria; Ardelan, Murat Van (Peer reviewed; Journal article, 2022)High biota mercury levels are persisting in the Arctic, threatening ecosystem and human health. The Arctic Ocean receives large pulsed mercury inputs from rivers and the atmosphere. Yet the fate of those inputs and possible ... -
From the Ocean to the Lab—Assessing Iron Limitation in Cyanobacteria: An Interface Paper
Hunnestad, Annie Vera; Vogel, Anne Ilse Maria; Digernes, Maria Guadalupe; Armstrong, Evelyn; Ardelan, Murat Van; Hohmann-Marriott, Martin Frank (Peer reviewed; Journal article, 2020)Iron is an essential, yet scarce, nutrient in marine environments. Phytoplankton, and especially cyanobacteria, have developed a wide range of mechanisms to acquire iron and maintain their iron-rich photosynthetic machinery. ... -
Iron Speciation and Physiological Analysis Indicate that Synechococcus sp. PCC 7002 Reduces Amorphous and Crystalline Iron Forms in Synthetic Seawater Medium
Hunnestad, Annie Vera; Vogel, Anne Ilse Maria; Digernes, Maria Guadalupe; Ardelan, Murat Van; Hohmann-Marriott, Martin Frank (Peer reviewed; Journal article, 2020)Cyanobacteria have high iron requirements due to iron-rich photosynthetic machineries. Despite the high concentrations of iron in the Earth’s crust, iron is limiting in many marine environments due to iron’s low solubility. ... -
Untargeted analysis of DOM in an arctic fjord
Kielland, Tobias Skaret (Master thesis, 2022)Arktis er et complexed økosystem system under raskt endring. takket være global oppvarming er forståelsen for de kjemiske egenskapene til denne regionen uunnværlige. Denne studien tar for sesongendringene av vannløst ...