Publications

This study investigates DOM dynamics during the late-summer bloom phase dominated by Phaeocystis antarctica in the Amundsen Sea Polynya. By integrating absorbance and fluorescence spectroscopy with FT-ICR-MS, we reveal unique DOM signatures including protein-rich chromophoric DOM with distinct absorbance shoulders, elevated protein-like fluorescent DOM components linked to P. antarctica degradation, and enrichment of labile low-molecular-weight compounds with increased sulfur-containing molecules from DMSP oxidation.

Using metatranscriptomics, this study investigated bacterioplankton gene expression in surface waters across a nearshore-to-offshore transect in Lake Michigan during 2017–2018. Results imply that offshore bacterial communities are more substrate-limited than in nearshore and are investing more energy in acquiring DOM substrates.

Variations in DOM properties between porewater and creek water during tidal cycles were investigated during summer and autumn in a macrotidal saltmarsh, Hangzhou Bay, China, using flow field-flow fractionation combined with fluorescence EEM-PARAFAC. This study emphasized the compositional and molecular size dynamics of DOM over tidal cycles at the tidal marsh-estuarine margins of a river-dominated estuary.

This study presents extensive shipboard observations of 13 aerosol trace elements across the Arctic Ocean during summer 2024. TE concentrations and the enrichment levels of anthropogenic TEs rank among the lowest globally observed. Decadal comparisons revealed a near ten-fold reduction in Pb and Cd enrichment, contrasting with a near-doubling of V enrichment driven by intensified Arctic shipping.

This article analyzes the background and progressiveness of the CAOF Agreement, examines the shared responsibility of all state parties concerning the sustainable use of marine living resources in the Central Arctic Ocean, reviews China’s interests and engagement in the Arctic region with particular attention to its participation in the CAOF Agreement, and discusses China’s role and implications for sustainable Arctic governance.

This study compared dissolved organic matter across the lower Mississippi River and Pearl River using monthly water samples. The Mississippi exhibited lower carbon concentrations with minimal seasonal shifts, while the Pearl River showed higher concentrations driven by terrestrial runoff and distinct seasonal patterns. High-molecular-weight fractions displayed unique optical signatures, and major flood events increased organic material pulses.

Variations in molecular weight distributions of dissolved organic matter (DOM) and PARAFAC-derived fluorescent components were investigated along a transect in the seasonally hypereutrophic lower Fox River-Green Bay using the one-sample PARAFAC approach coupling flow field-flow fractionation for size-separation with fluorescence excitation-emission matrix (EEM) and PARAFAC analysis.

Dynamic changes in the abundance, composition, and size spectra of dissolved organic matter (DOM) in different size-fractions between influent and effluent from Milwaukee metropolitan wastewater treatment plants (WWTPs) were evaluated using size-fractionation, excitation-emission matrix (EEM) coupled with parallel factor analysis (PARAFAC), and ΔEEM approaches.

Arctic rivers are sensitive to climate and environmental change, but the biogeochemical response remains poorly understood. Monthly size-fractionated dissolved organic matter (DOM) samples from the lower Yukon River were characterized using UV–visible, fluorescence, and Fourier transform-infrared (FT-IR) spectroscopy techniques.

Fluorescence excitation emission matrices (EEM) and parallel factor (PARAFAC) analysis have been widely used in the characterization of dissolved organic matter (DOM) in the aquatic continuum.

The impact of dissolved and particulate organic mater on coastal water denitrification is evaluated. Particulate organic matter and its …

Knowledge of the dynamic changes in molecular size of natural colloidal organic matter (COM) along the aquatic continuum is of vital …

The distribution and dynamics of chromophoric dissolved organic matter (CDOM) in the Taiwan Strait were investigated throughan examination ofthe seasonal and geographic variations ofits optical properties.

With the Arctic warming, terrestrial input plays a more important role in carbon cycle in the Arctic Ocean than before. Chromophoric dissolved organic matter (CDOM) as a tracer of terrestrial dissolved organic matter (tDOM) becomes more valuable in elucidating the source and compositions of DOM.