Browsing Department of Biology by Author "Töpper, Birte"
Bacterial community structures in the Arctic Ocean: the effect of increased carbon load on nutrient competition and bacterial diversity Töpper, Birte (The University of Bergen, 2012-06-29)The Arctic Ocean is a unique marine environment with respect to irradiation periodicity and intensity, temperature, ice formation and strong stratification. Changes due to global warming might be more pronounced in this ...Doctoral thesis
Microbial communities and processes in ice-covered Arctic waters of the northwestern Fram Strait (75 to 80° N) during the vernal pre-bloom phase Seuthe, Lena; Töpper, Birte; Reigstad, Marit; Thyrhaug, Runar; Vaquer-Sunyer, Raquel (Inter-Research, 2011-09-20)Marine microbial communities have been little studied in Arctic waters, especially during the winter–spring transition before the development of extensive phytoplankton blooms. This study investigated microbial plankton ...Peer reviewedJournal article
Organic carbon and mineral nutrient limitation of oxygen consumption, bacterial growth and efficiency in the Norwegian Sea Cuevas, Luis Antonio; Egge, Jorun Karin; Thingstad, Tron Frede; Töpper, Birte (Springer, 2011-01-12)To evaluate the role of bacteria in the transformation of organic matter in subarctic waters, we investigated the effect of mineral nutrients (ammonia and phosphate) and organic carbon (glucose) enrichment on heterotrophic ...Peer reviewedJournal article