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View article: Perspectives on shipping emissions and their impacts on the surface ocean and lower atmosphere: An environmental-social-economic dimension
Perspectives on shipping emissions and their impacts on the surface ocean and lower atmosphere: An environmental-social-economic dimension Open
Shipping is the cornerstone of international trade and thus a critical economic sector. However, ships predominantly use fossil fuels for propulsion and electricity generation, which emit greenhouse gases such as carbon dioxide and methane…
View article: Interoperable vocabulary for marine microbial flow cytometry
Interoperable vocabulary for marine microbial flow cytometry Open
The recent development of biological sensors has extended marine plankton studies from conducting laboratory bench work to in vivo and real-time observations. Flow cytometry (FCM) has shed new light on marine microorganisms since the 1980s…
View article: Ocean acidification modifies biomolecule composition in organic matter through complex interactions
Ocean acidification modifies biomolecule composition in organic matter through complex interactions Open
The main source of marine organic carbon (OC) is autotrophic production, while heterotrophic degradation is its main sink. Increased anthropogenic CO 2 release leads to ocean acidification and is expected to alter phytoplankton community c…
View article: Marvelous Marine Microgels: On the Distribution and Impact of Gel-Like Particles in the Oceanic Water-Column
Marvelous Marine Microgels: On the Distribution and Impact of Gel-Like Particles in the Oceanic Water-Column Open
Three-dimensional hydrogels of organic polymers have been suggested to affect a variety of processes in the ocean, including element cycling, microbial ecology, food-web dynamics, and air-sea exchange. However, their abundance and distribu…
View article: Organic matter composition of the water column in mesocosm study (Bergen 2011)
Organic matter composition of the water column in mesocosm study (Bergen 2011) Open
During the ocean acidification study in Bergen (2011) we measured concentrations of dissolved organic carbon (DOC) and nitrogen (DOC) as well as concentrations of total and dissolved amino acids and carbohydrates including individual compo…
View article: Organic matter composition of the water column in mesocosm study (Svalbard 2010)
Organic matter composition of the water column in mesocosm study (Svalbard 2010) Open
During the ocean acidification study in Svalbard (2010) we measured concentrations of dissolved organic carbon (DOC) and nitrogen (DON) as well as concentrations of total and dissolved amino acids and carbohydrates including individual com…
View article: Relevance of Nutrient-Limited Phytoplankton Production and Its Bacterial Remineralization for Carbon and Oxygen Fluxes in the Baltic Sea
Relevance of Nutrient-Limited Phytoplankton Production and Its Bacterial Remineralization for Carbon and Oxygen Fluxes in the Baltic Sea Open
The Baltic Sea is prone to oxygen deficiency due to the restricted water exchange with the North Sea in coincidence with a high biological oxygen demand. The partitioning of organic carbon between respiration, accumulation and export is co…
View article: Editorial: Extracellular Enzymes in Aquatic Environments: Exploring the Link Between Genomic Potential and Biogeochemical Consequences
Editorial: Extracellular Enzymes in Aquatic Environments: Exploring the Link Between Genomic Potential and Biogeochemical Consequences Open
EDITORIAL article Front. Microbiol., 26 June 2019Sec. Aquatic Microbiology Volume 10 - 2019 | https://doi.org/10.3389/fmicb.2019.01463
View article: Inter-Annual Variability of Organic Carbon Concentration in the Eastern Fram Strait During Summer (2009–2017)
Inter-Annual Variability of Organic Carbon Concentration in the Eastern Fram Strait During Summer (2009–2017) Open
The Arctic Ocean plays a key role in regulating the global climate, while being highly sensitive to climate change. Temperature in the Arctic increases faster than the global average, causing a loss of multiyear sea-ice and affecting marin…
View article: A New Perspective at the Ship-Air-Sea-Interface: The Environmental Impacts of Exhaust Gas Scrubber Discharge
A New Perspective at the Ship-Air-Sea-Interface: The Environmental Impacts of Exhaust Gas Scrubber Discharge Open
Shipping emissions are likely to increase significantly in the coming decades, alongside increasing emphasis on the sustainability and environmental impacts of the maritime transport sector. Exhaust gas cleaning systems (“scrubbers”), usin…
View article: Marine isoprene production and consumption in the mixed layer of the surface ocean – a field study over two oceanic regions
Marine isoprene production and consumption in the mixed layer of the surface ocean – a field study over two oceanic regions Open
Parameterizations of surface ocean isoprene concentrations are numerous, despite the lack of source/sink process understanding. Here we present isoprene and related field measurements in the mixed layer from the Indian Ocean and the easter…
View article: Marine isoprene production and consumption in the mixed layer of the surface ocean – A field study over 2 oceanic regions
Marine isoprene production and consumption in the mixed layer of the surface ocean – A field study over 2 oceanic regions Open
Parameterizations of surface ocean isoprene concentrations are numerous, despite the lack of source/sink process understanding. Here we present isoprene and related field measurements in the mixed layer from the Indian Ocean and the East P…
View article: Supplementary material to "Marine isoprene production and consumption in the mixed layer of the surface ocean – A field study over 2 oceanic regions"
Supplementary material to "Marine isoprene production and consumption in the mixed layer of the surface ocean – A field study over 2 oceanic regions" Open
Figure S1: (a) Data points represent hourly radiation measurements (W m -2 ) from the ship (DOY 193.1 -193.6 during SPACES) converted into photosynthetic active radiation (PAR, µmol m -2 s -1 ), blue line is the fitted data using a sine 5 …
View article: Bacterial Colonization and Vertical Distribution of Marine Gel Particles (TEP and CSP) in the Arctic Fram Strait
Bacterial Colonization and Vertical Distribution of Marine Gel Particles (TEP and CSP) in the Arctic Fram Strait Open
Gel particles—a class of abundant transparent organic particles—have increasingly gathered attention in marine research. Field studies on the bacterial colonization of marine gels however are still scarce. So far, most studies on respectiv…
View article: Bacterial counts and gel particle parameters at AWI HAUSGARTEN from twelve different water depths at four different sites in 2015
Bacterial counts and gel particle parameters at AWI HAUSGARTEN from twelve different water depths at four different sites in 2015 Open
Gel particles - a class of abundant transparent organic particles - have increasingly gathered attention in marine research. Field studies on the bacterial colonization of marine gels however are still scarce. So far, most studies on respe…
View article: Size-frequency-distributions (gel particle-bacteria and gel particle-gel particle) at northern AWI HAUSGARTEN in 2015 (CTD, PS93/064-4 and PS93/063-1)
Size-frequency-distributions (gel particle-bacteria and gel particle-gel particle) at northern AWI HAUSGARTEN in 2015 (CTD, PS93/064-4 and PS93/063-1) Open
Size-frequency-distributions (gel particle-bacteria and gel particle-gel particle) at northern AWI HAUSGARTEN in 2015 (CTD, PS93/064-4 and PS93/063-1)
View article: Biogenic composition of the sea-surface microlayer from a mesocosm study (Bergen 2011)
Biogenic composition of the sea-surface microlayer from a mesocosm study (Bergen 2011) Open
The sea-surface microlayer (SML) is the ocean's uppermost boundary to the atmosphere and in control of climate relevant processes like gas exchange and emission of marine primary organic aerosols (POA). The SML represents a complex surface…
View article: Bacteria growth, enzyme activities and TEP during KOSMOS 2011 mesocosm experiment in the Raunefjord
Bacteria growth, enzyme activities and TEP during KOSMOS 2011 mesocosm experiment in the Raunefjord Open
Marine bacteria are the main consumers of freshly produced organic matter. Many enzymatic processes involved in the bacterial digestion of organic compounds were shown to be pH sensitive in previous studies. Due to the continuous rise in a…
View article: The Expedition PS93.2 of the Research Vessel POLARSTERN to the Fram Strait in 2015
The Expedition PS93.2 of the Research Vessel POLARSTERN to the Fram Strait in 2015 Open
The second leg of the Polarstern expedition PS93 to the Arctic started on 21st July 2015 in Tromso (Norway) and ended on 15th August 2015, again in Tromso (Fig. 1.1). The cruise led to the deep-sea observatory HAUSGARTEN in the Fram Strait…