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News

10.19.2022 - Samples from Haima methane seeps and Pinping Lagoon are escorted back to Hong Kong! Welcome back Jing and Yuxuan, and a new members Xiaotian Zhou joining us a Research Assistant. Welcome, Xiaotian!

10.14.2022 - Jing and Yuxuan sample water and sediments in Pinqing Lagoon (the largest lagoon in China and second largest in Asia). We are “excited” to see a positive N₂O gradient down core (N₂O fluxes out from sediments into the water column), which is contrary to what we saw in other loacations (e.g., deep sea, coastal sediments arond HK).

9.30.2022 - Jing and Yuxuan are back on land from a research cruise to the South China Sea for sampling sediments from the Haima methane seeps, after nearly two months of hardwork (and covid dramma of crossing the border, quarantining, lockdown anxiety, and others). They have sampled sediments at three seep sites with distinct geochemistry (CH₄ vs H₂S) and benthic biology (deep-sea mussels and clams Archivesica marissinica).

7.1.2022 - Jiying receives a RGC-GRF Grant (Research Grant Council General Research Funding Grant) to study phosphorus cycling and fluxes in the sediments of coastal waters in Hong Kong (Jan 2023- Dec 2025).

5.17.2022 - Xingyu presents our work “Polyphosphate in the plankton of the oligotrophic Great Lakes” at the Joint Aquatic Science Meeting (Grand Rapids, MN, US). Some funs are missing for a virtual meeting (we are staying in HK), but on the bright side it is environmental and introvert friendly…

9.1.2021 - Xingyu finished his RA term and now joins us as a PhD student. We have two new members Yuxuan Lin and Rixuan Gao joining in as Mphil students; Welcome Rixuan, Yuxuan, and Xingyu!

7.1.2021 - Jiying receives her first RGC-ECS Grant (Research Grant Council Early Career Scheme Grant) to study polyphosphate dynamics in coastal oceans (Jan 2022 - Dec 2024).

06.2.2021- 07.10.2021 - We survive the research cruises aboard the R/V Haike 68 in the Pearl River Estuary and along the coastal shelf waters in the Northern South China Sea. We sampled more than 20 stations for both sediments and water. This is the first cruise for Jing, Lei, and Xingyu, and also Jiying’s first cruise in this part of the globe. Cyclones are no fun; sunsets are delightful; feets on the ground (literally) again reminds us of happiness being simple..

1.25.2021 - Our paper Li et al. “Benthic invaders control the phosphorus cycle in the world’s largest freshwater ecosystem” is now published in Proceedings of the National Academy of Sciences (link). (News Brief)

09.21.2020 - Xingyu Yang Joins us a Research Assistant. Welcome, Xingyu!

09.10.2020 - Samrat’s paper Alam et al. “Geochemical controls on phosphorus internal loading in Lake of the Woods” is published in Chemical Geology (link)

09.07.2020 - Jing Sun joins us as a PhD student. Welcome, Jing!

08.02.2020 - Lei Zhou joins us as a Mphil student. Welcome, Lei!

07.02.2020 - Jiying Join the Department of Ocean Sciences at the Hong Kong University of Science and Technology.

12.17.2019 - Our paper Li et al. “Picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal Lake Ontario” is now published in Scientific Reports (link)

06.10.2019 -06.14.2019 - Vadym and Jiying presented our work on how invasive quagga mussels impact sediment and water geochemistry of the Great Lakes at the IAGLR 2019 meeting at SUNY Brockport, NY.

06.03.2019 - Jiying’s paper “Sediment geochemistry and contributions to carbon and nutrient cycling in a deep meromictic tropical lake: Lake Malawi (East Africa)” is awarded the Early Career/Young Scientist Most Notable Paper Award given annually by the International Association for Great Lakes Research!

05.21.2019- 06.02.2019 - We successfully completed our research expedition on Lakes Superior, Michigan, and Huron studying the invasive mussels impacting sediment geochemistry and nutrient exchanges! We sampled 9 primary stations including transects (shallow to deep sites), despite a day of hiding from storms in Houghton, MI (museum, bakery and bars). See this short video about what we are doing!

11.21.2018 – Li and Dittrich manuscript “Dynamic polyphosphate metabolism in cyanobacteria responding to phosphorus availability” is accepted for publication in Environmental Microbiology.

07.31.2018-08.12.2108 – Our research expedition on Lakes Superior, Michigan, and Huron surveyed the invasive mussels coverage on the lake floor and investigated their impact on sediment geochemistry and benthic-pelagic exchanges.

07.23.2018 – Jiying joined Profs. Sergei Katsev and Prof. Ted Ozersky’s groups as a postdoc researcher at the Large Lakes Observatory, University of Minnesota Duluth.

06.20.2018 – Jiying presented at the IAGRL 2018 meeting: Seasonal and spatial variability of polyphosphate in the water column of Hamilton Habour.

02.16.2018 – Li et al paper “Phosphorus recyling in deeply oxygenated sediments in Lake Superior controlled by organic matter mineralization” is published in the Limnology and Oceanography.

01.03.2018 – Li et al paper “Sediment geochemistry and contributions to carbon and nutrient cycling in a deep meromictic tropical lake: Lake Malawi (East Africa)” is published in the Journal of Great Lakes Research.

11.29.2017 – It cools to just a few degrees above zero in Toronto, to celebrate the last day of water sampling on Hamilton Harbor, Lake Ontario.

10.23.2017 – Crowe et al paper “Novel anammox bacteria and nitrogen loss from Lake Superior” is published on Scientific Reports.

09.22.2017-09.29.2017 – Jiying sampled sediments from Lake of the Woods by joining the research expedition hosted by Environment and Climate Change Canada, to collect sediment samples, investigate sediment geochemistry and quantify internal phosphorus loading.

09.15.2017 – Fakhraee et al paper “Significant role of organic sulfur in supporting sedimentary sulfate reduction in low-sulfate environments” is published in Geochimica et Cosmochimica Acta.

07.11.2017 – A sunny day in Toronto welcomes our first water samples collected from Hamilton Harbor, Lake Ontario, with helps of scientists/technicians from Environment and Climate Change Canada. This project investigates seasonal dynamics of polyphosphate

06.12.2017 – Jiying presented the work on polyphosphate in cyanobacteria at the 1st Geobiology meeting at Banff, AB, Canada

03.08.2017 – Li et al paper “Phosphorus availability and turnover in the Chesapeake Bay: Insights from nutrient stoichiometry and phosphate oxygen isotope ratios” is published on Journal of Geophysical Research-Biogeosciences.

03.08.2017 – Li et al paper “Water column particulate matter a key contributor to phosphorus regeneration in a coastal eutrophic environment, the Chesapeake Bay” is published on Journal of Geophysical Research-Biogeosciences.