Large Arctic rivers transport substantial amounts of freshwater, carbon (C), and nutrients from land to the Arctic Ocean and play an important role in continental-ocean biogeochemical coupling. Althou...
Heterotrophic bacteria process a large fraction of the polysaccharides produced by phytoplankton in the surface ocean. Some of these polysaccharides are taken up by "selfish" bacteria, which bind, par...
Deep-sea mining in polymetallic nodule areas poses significant risks to the marine carbon sink. This study investigated the vertical distribution and three-dimensional fluorescence spectral characteri...
Environmental DNA (eDNA) has revolutionized biodiversity monitoring by enabling species detection from microbes to megafauna without direct observation or capture. Yet most marine eDNA collection syst...
Deep-learning emulators have emerged as a promising approach for reducing the computational cost of Earth System Models while potentially improving forecasting skill. Here, we demonstrate the successf...
Since the year 2000, oceanic research has seen a surge in data collection, with approximately 500,000 sets of measurements for a single variable (e.g., temperature) recorded annually. Yet, further adv...
"Rotten" sea ice, ice in an advanced stage of melt, represents an important but understudied habitat in the rapidly changing Arctic. As Arctic warming accelerates, this late-season ice type will becom...
Antarctic glacial bays are important, productive regions of the Southern Ocean. Certain glacial bays, including our research area, Admiralty Bay, are less favorable for phytoplankton growth due to win...
Emerging organic contaminants (EOCs), including per- and polyfluoroalkyl substances (PFASs), polybrominated diphenyl ethers (PBDEs), polycyclic aromatic hydrocarbons (PAHs), and antibiotics, persist i...
We apply ordinal-pattern analysis and permutation entropy (PE) to satellite-derived chlorophyll-a (Chl-a), sea surface temperature (SST), and mixed-layer depth (MLD) data to investigate the spatiotemp...
Climate change threatens polar ecosystems through rising temperatures and changing light regimes. Phytoplankton release of dissolved organic carbon (DOC) is a major carbon-cycle component, yet it rema...
Trace elements occur naturally in the environment, but anthropogenic activities can amplify their release, increasing exposure and bioaccumulation in marine predators such as seabirds. Mercury (Hg) in...
By tracking the water mass histories of genetic samples, we investigated the biophysical dynamics shaping eukaryotic phytoplankton populations in a nutrient-deplete subtropical gyre, where cyanobacter...
The 2016 El Niño was the strongest warm-phase of the El Niño-Southern Oscillation recorded to date over the 21st century, leading to the development of severe ocean surface temperature anomalies - mar...
N-Acetyl-L-glutamate kinase of Prasinoderma coloniale is an example of an evolutionary hack that allows this alga survival without the protein PII. N-Acetyl-L-glutamate kinase (NAGK) catalyzes the pho...
Earth observation satellites transform our understanding of Earth's biological, atmospheric, and surface systems. The Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission, launched in 2024, repres...
Global warming and the resulting surface seawater stratification have led to dominance of small phytoplankton, driving substantial changes in planktonic ecosystem structure. This study investigates th...
Marine microorganisms are vital to biogeochemical cycles and food web dynamics, with their community structure shaped by environmental factors such as temperature, light, and salinity. While microbial...
Photosynthetic microorganisms are responsible for primary production at the base of the marine food web and influence global biogeochemistry. Their growth is balanced by mortality processes, including...
Diverse ecosystems on land and in the ocean are thought to be more productive, stable and resistant to change, but these relationships are highly variable across systems and scales. Although the produ...
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