Welcome to our website. We study biogeochemistry in lakes and oceans.
The Hong Kong University of Science and Technology
(*: corresponding authors; †: student authors from our group)
Lin, Y.†, Sun, J.†, Zhou, X.†, Zhong, C., Yang, X.†, Yu, L., Sun, J., Qian, P., & Li, J.* (2025) Chemoautotrophy enhances iron and phosphorus recycling from sediments at deep-sea methane seeps. Global Biogeochemical Cycles, 39, e2025GB008735, https://doi.org/10.1029/2025GB008735
Gao, R.†, Yang, X.†, Zhang, Q., Yung, C. C. M., He, D., Yin, H., & Li, J.* (2025). Polyphosphate dynamics in marine heterotrophic bacteria under phosphorus and organic carbon limitations. Environmental Microbiology, 27(8), e70165. https://doi.org/10.1111/1462-2920.70165
Sun, J.†, Zhou, X.†, Lin, Y.†, Yang, X.†, Yu, L., Yung, C. C. M., Zhang, Q. & Li, J.* (2025). Superlinear control of phosphorus recycling in coastal sediments by organic matter availability. Water Research, 283, 123889. https://doi.org/10.1016/j.watres.2025.123889
Sun, J.†, Yu, L.*, Yang, X.†, Gan, J., Yin, H. & Li, J.* (2024). Sediment oxygen uptake and hypoxia in coastal oceans, the Pearl River Estuary region. Water Research, 267, 122499. https://doi.org/10.1016/j.watres.2024.122499
Yang, X.†, Gao, R.†, Huff, A., Katsev, S., Ozersky, T. & Li, J.* (2024). Polyphosphate phosphorus in the Great Lakes. Limnology and Oceanography Letters. https://doi.org/10.1002/lol2.10394
Yang, X.†, Gao, R.†, Zhang, Q., Yung, C. C. M., Yin, H. & Li, J.* (2024). Quantification of Polyphosphate in Environmental Planktonic Samples Using a Novel Fluorescence Dye JC-D7. Environmental Science & Technology. https://doi.org/10.1021/acs.est.4c04545
Xu, Y., Sun, R., Redondo, E. R., Leung, K. K., Wan, S. H., Li, J. & Yung, C. C. M.* (2024). Revealing the intricate temporal dynamics and adaptive responses of prokaryotic and eukaryotic microbes in the coastal South China Sea. Science of The Total Environment, 952, 176019. https://doi.org/10.1016/j.scitotenv.2024.176019
Wang, S., Tsui, M. T.-K.*, Li, J. & Pan, K. (2024). Biogeochemical controls on methylmercury distribution in a subtropical wetland ecosystem. Marine Pollution Bulletin, 207, 116894. https://doi.org/10.1016/j.marpolbul.2024.116894
Wang, T., Lin, C., Zhang, H., Li, J., Wang, L., Luo, Y., Liu, J., Shen, J. & Tang, T.* (2024). Kinetic isotope effect of decomposing fatty acids in the continental shelf sediment of the northern South China Sea. Frontiers in Marine Science, 11, 1438092. https://doi.org/10.3389/fmars.2024.1438092
Ruan, X., Couespel, D., Lévy, M., Li, J., Mak, J.* & Wang, Y. (2024). Combined physical and biogeochemical assessment of mesoscale eddy parameterisations in ocean models: Eddy-induced advection at eddy-permitting resolutions. Ocean Modelling, 190, 102396. https://doi.org/10.1016/j.ocemod.2024.102396
Zvi-Kedem, T., Lalzar, M., Sun, J.†, Li, J., Tchernov, D. & Meron, D.* (2024). Exploring the Microbial Mosaic: Insights into Composition, Diversity, and Environmental Drivers in the Pearl River Estuary Sediments. Microorganisms, 12(7), 1273. https://doi.org/10.3390/microorganisms12071273
Ruan, X., Couespel, D., Lévy, M., Li, J., Mak, J.* & Wang, Y. (2023). Combined physical and biogeochemical assessment of mesoscale eddy parameterisations in ocean models: Eddy induced advection at non-eddying resolutions. Ocean Modelling, 183, 102204. https://doi.org/10.1016/j.ocemod.2023.102204
Li, Y., He, X., Lin, Y.†, Li, Y., Kamenev, G. M., Li, J., Qiu, J. & Sun, J.* (2023). Reduced chemosymbiont genome in the methane seep thyasirid and the cooperated metabolisms in the holobiont under anaerobic sediment. Molecular Ecology Resources, 23(8), 1853–1867. https://doi.org/10.1111/1755-0998.13846
Yin, H.*, Zhang, M., Yin, P. & Li, J. (2022). Characterization of internal phosphorus loading in the sediment of a large eutrophic lake (Lake Taihu, China). Water Research, 225, 119125. https://doi.org/10.1016/j.watres.2022.119125
Yang, C., Li, J. & Yin, H.* (2022). Phosphorus internal loading and sediment diagenesis in a large eutrophic lake (Lake Chaohu, China). Environmental Pollution, 292(Pt B), 118471. https://doi.org/10.1016/j.envpol.2021.118471
Li, J.*, Ianaiev, V., Huff, A., Zalusky, J., Ozersky, T. & Katsev, S.* 2021. Benthic invaders control the phosphorus cycle in the world’s largest freshwater ecosystem. Proceedings of the National Academy of Sciences 118 (6). https://doi.org/10.1073/pnas.2008223118 (Commentary by Vanni 2021, PNAS 118(8)e2100275118)
Bai, Y., Stout, L., Unal-Tosun, G., Li, J. & Jaisi, D.* (2020). Synthesis and Degradation of Polyphosphate: Isotope Effects in Enzyme- and Bacteria-Catalyzed Reactions. ACS Earth and Space Chemistry, 4(12), 2327–2336. https://doi.org/10.1021/acsearthspacechem.0c00230
Alam, M. S., Barthod, B., Li, J., Liu, H., Zastepa, A., Liu, X., & Dittrich, M.* (2020). Geochemical controls on internal phosphorus loading in Lake of the Woods. Chemical Geology, 558, 119873. https://doi.org/10.1016/j.chemgeo.2020.119873
Li, J.*, Plouchart, D., Zastepa, A., & Dittrich, M. (2019). Picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal Lake Ontario. Scientific Reports, 9(1), 19563. https://doi.org/10.1038/s41598-019-56042-5
Li, J.*, & Dittrich, M. (2019). Dynamic polyphosphate metabolism in cyanobacteria responding to phosphorus availability. Environmental Microbiology, 21(2), 572–583. https://doi.org/10.1111/1462-2920.14488
Li, J.*, Zhang, Y., & Katsev, S. (2018). Phosphorus recycling in deeply oxygenated sediments in Lake Superior controlled by organic matter mineralization. Limnology and Oceanography, 63(3), 1372–1385. https://doi.org/10.1002/lno.10778
Li, J.*, Brown, E. T., Crowe, S. A., & Katsev, S. (2018). Sediment geochemistry and contributions to carbon and nutrient cycling in a deep meromictic tropical lake: Lake Malawi (East Africa). Journal of Great Lakes Research, 44(6), 1221–1234. https://doi.org/10.1016/j.jglr.2017.12.001 (2018 Elsevier Early Career Most Notable Paper Award)
Li, J., Reardon, P., McKinley, J. P., Joshi, S. R., Bai, Y., Bear, K., & Jaisi, D. P.* (2017). Water column particulate matter: A key contributor to phosphorus regeneration in a coastal eutrophic environment, the Chesapeake Bay. Journal of Geophysical Research: Biogeosciences, 122(4), 737–752. https://doi.org/10.1002/2016jg003572
Li, J., Bai, Y., Bear, K., Joshi, S., & Jaisi, D.* (2017). Phosphorus availability and turnover in the Chesapeake Bay: Insights from nutrient stoichiometry and phosphate oxygen isotope ratios. Journal of Geophysical Research: Biogeosciences, 122(4), 811–824. https://doi.org/10.1002/2016jg003589
Fakhraee, M., Li, J., & Katsev, S.* (2017). Significant role of organic sulfur in supporting sedimentary sulfate reduction in low-sulfate environments. Geochimica et Cosmochimica Acta, 213, 502–516. https://doi.org/10.1016/j.gca.2017.07.021
Crowe, S. A., Treusch, A. H., Forth, M., Li, J., Magen, C., Canfield, D. E., Thamdrup, B. & Katsev, S. (2017). Novel anammox bacteria and nitrogen loss from Lake Superior. Scientific Reports, 7(1), 13757. https://doi.org/10.1038/s41598-017-12270-1
Li, J.*, & Katsev, S. (2014). Nitrogen cycling in deeply oxygenated sediments: Results in Lake Superior and implications for marine sediments. Limnology and Oceanography, 59(2), 465–481. https://doi.org/10.4319/lo.2014.59.2.0465
Li, J., Crowe, S. A., Miklesh, D., Kistner, M., Canfield, D. E., & Katsev, S.* (2012). Carbon mineralization and oxygen dynamics in sediments with deep oxygen penetration, Lake Superior. Limnology and Oceanography, 57(6), 1634–1650. https://doi.org/10.4319/lo.2012.57.6.1634
SUN, J.† (2025) Sediment biogeochemical cycles and exchanges with the water column in the coastal ocean around the Pearl River Estuary. Ph.D Thesis. The Hong Kong University of Science and Techonology.doi: 10.14711/thesis-991013384163903412
GAO, R.† (2024) Polyphosphate dynamics in marine heterotrophic bacteria under phosphorus and organic carbon limitations. M.Phil Thesis. The Hong Kong University of Science and Techonology. doi: 10.14711/thesis-991013340457303412
LIN, Y.† (2023) Iron-sulfur coupling controls phosphorus fluxes and burial in sediments from coastal to deep seas. M.Phil Thesis. The Hong Kong University of Science and Techonology doi: 10.14711/thesis-991013223059203412
ZHOU, L.† (2022) Sediment oxygen uptake and carbon mineralization in the Pearl River Estuary and adjacent coastal waters. M.Phil Thesis. The Hong Kong University of Science and Techonology. doi: 10.14711/thesis-991013088359403412]
LI, J. (2014) Sediment diagenesis in large lakes Superior and Malawi, geochemical cycles and budgets and comparison to marine sediments. Ph.D Thesis. University of Minnesota (Link)
LI, J. (2011) Diagenesis and sediment-water exchanges in organic-poor sediments of Lake Superior. M. Sc. Thesis. University of Minnesota (Link)
Li, J., Sun, J., & Yu, L. (2025) Sediment phosphorus and iron speciation and fluxes in the Pearl River Estuary region Zenodo. https://doi.org/10.5281/zenodo.14885312
Li, J., Sun, J., & Yu, L. (2025) Sediment nitrogen fluxes and rates in the Pearl River Estuary region. DataSpace@HKUST, V3. https://doi.org/10.14711/dataset/XMTKWW
Li, J., Sun, J., Yu, L., Gan, J., & Yang, X. (2024) Sediment oxygen uptake and hypoxia in the Pearl River Estuary Region. DataSpace@HKUST, V1. https://doi.org/10.14711/dataset/KCLUQW
LI, J. & Lin, Y. (2025) Sediment iron and phosphorus species and fluxes at Haima methane seeps. DataSpace@HKUST, V3. https://doi.org/10.14711/dataset/VOGU6C
Li, J., & Lin, Y. (2025). Sediment nitrogen, iron and phosphorus species and fluxes in Pinqing Lagoon, South China Sea. Zenodo. https://doi.org/10.5281/zenodo.15959091
(†: student presenters from our lab)
Li, J. Nutrient biogeochemistry in the ocean and future changes, International Symposium on the Changes of Climate, Environment, and Ecology in Antarctica, Great Wall Station, King George Island, Antarctica, Dec 29, 2024
Li, J., Sun, J.†, and Lin, Y.† Phosphorus recycling in sediments–the classic model and the anomalies, Goldschmidt Conference, Lyon, France, July 9–14, 2023 (Keynote)
Yang, X.†, Gao, R.†, and Li, J. Unveiling the Role of Planktonic Polyphosphate in Aquatic Phosphorus Cycling with Novel Quantification, PolyP-2025 on Polyphosphate Biology, Ann Arbor, Michigan, USA, May 20-23, 2025 (Oral; Travel Award by the organizer)
Lin, Y.†, Sun, J.†, Zhou, X.†, Yang, J.†, Fan, Z.†, and Li, J. Carbon and nutrient recycling in coastal sediments respond disproportionally to increasing organic matter inputs, Goldschmidt Conference, Chicago, Illinois, USA, Aug 18-23, 2024 (Oral)
Sun, J.†, Zhou, X.†, Lin, Y.†, and Li, J. Sediment P recycling and effluxes in coastal oceans, the Pearl River Estuary region. Goldschmidt Conference, Chicago, IL, USA, Aug 18-23, 2024 (Oral).
Sun, J.† and Li, J. Sediment oxygen consumption and seasonal hypoxia—A case study in the coastal South China Sea. ASLO Aquatic Sciences Meeting, Palma de Mallorca, Spain, June 4-9, 2023 (Oral)
Yang, X.† and Li, J. Polyphosphate as a Phosphorus Stock in Aquatic Ecosystems. ASLO Aquatic Sciences Meeting 2023, Palma De Mallorca, Spain, June 4-9, 2023 (Poster)
Sun, J.†, Yu, L., Yang, X.†, Gan J., Yin H., and Li, J. Sediment oxygen uptake and hypoxia in coastal oceans, the Pearl River Estuary region. Sixth Xiamen Symposium on Marine Environmental Sciences (XMAS-VI), Xiamen, Fujian, China, Jan 9-12, 2023 (Poster)
Lin, Y.†, Sun, J.†, Zhou, X.†, Zhong, C., and Li, J. Sediment phosphorus effluxes and nitrogen-iron-sulfur cycling enhanced by chemoautotrophy in a deep-sea methane seep, the 12th International Conference on Tropical Marine Environmental Changes, Guangzhou, Guangdong, China, Nov 18-20, 2023 (Oral)
Lin, Y.†, Sun, J.†, and Li, J. Iron-sulfur coupling regulates sediment phosphorus biogeochemistry and fluxes in coastal oceans, the 6th Xiamen Symposium on Marine Environmental Sciences (XMAS-VI), Xiamen, Fujian, China, Jan 9-12, 2023 (Oral)
Gao, R.†, Yang, X.†, and Li, J. Polyphosphate in marine heterotrophic bacteria as an energy storage. ASLO Aquatic Sciences Meeting, Palma de Mallorca, Spain, June 4-9, 2023 (Poster).
Yang, X.†, Gao, R.†, and Li, J. The Challenges in Quantifying PolyP in Natural Water Samples. FEBS 2023 Polyphosphate Meeting, Cadiz, Spain, May 9-12, 2023 (Oral; Travel Award by the organizer)
Yang, X.† and Li, J. Polyphosphate in the plankton of the oligotrophic Great Lakes, Joint Aquatic Science Meeting, Grand Rapids, Michigan, USA, May 14-20, 2022 (Oral)
Li, J., V. Ianaiev, A. Huff, J. Zalusky, T. Ozersky, and S. Katsev. Benthic Shunt: dreissenid mussels now control phosphorus dynamics in Lake Michigan. IAGLR Conference, Brockport, NY, USA, June 10-14, 2019 (Oral)
Li, J., A. Zastepa, S. Markovic, S. Watson, and M. Dittrich. Seasonal and spatial variability of polyphosphate in the water column of Hamilton Harbour. IAGLR Conference, Scarborough ON, Canada, June 18- 22, 2018 (Oral)
Li, J., P. Reardon, S. R. Joshi, Y. Bai, K. Bear, N. Dhakal, N. Washton, and D. P. Jaisi. Internal cycling of phosphorus in the Chesapeake Bay: Comparison of P cycling in water and sediment columns. ASA-CSA-SSSA Annual Meeting, Minneapolis MN, USA. Nov. 15 -18, 2015 (Oral)
Li, J., P. Reardon, Joshi, S.R., Bai, Y., Bear, K., Washton, N., Jaisi, D.P. Remineralization of organic phosphorus and precipitation of authigenic phosphate in the mid-Chesapeake Bay water column. Geological Society of America Annual meeting, Baltimore MD, USA. Nov 1- 4, 2015 (Oral)
Li, J. and S. Katsev. Large lakes as analogues for sediment cycling of carbon and nitrogen in coastal and deep Ocean. Ocean Science Meeting, Honolulu HI, USA. Feb. 23 – 28, 2014 (Oral)
Li, J. and S. Katsev. Carbon and nutrient cycling in sediments of Lake Malawi. IAGLR Conference, West Lafayette IN, USA. June 2 -6, 2013 (Oral)
Li, J., S. A. Crowe, D. Miklesh, D. E. Canfield, and S. Katsev. Migrations of sediment redox boundaries as indicators of change in oligotrophic systems, Goldschmidt Conference, Knoxville, Tennessee, USA. June 13- 18, 2010 (Oral)