Articles | Volume 15, issue 21
https://doi.org/10.5194/bg-15-6451-2018
https://doi.org/10.5194/bg-15-6451-2018
Research article
 | 
02 Nov 2018
Research article |  | 02 Nov 2018

Dynamic mercury methylation and demethylation in oligotrophic marine water

Kathleen M. Munson, Carl H. Lamborg, Rene M. Boiteau, and Mak A. Saito

Related authors

Results from a multi-laboratory ocean metaproteomic intercomparison: effects of LC-MS acquisition and data analysis procedures
Mak A. Saito, Jaclyn K. Saunders, Matthew R. McIlvin, Erin M. Bertrand, John A. Breier, Margaret Mars Brisbin, Sophie M. Colston, Jaimee R. Compton, Tim J. Griffin, W. Judson Hervey, Robert L. Hettich, Pratik D. Jagtap, Michael Janech, Rod Johnson, Rick Keil, Hugo Kleikamp, Dagmar Leary, Lennart Martens, J. Scott P. McCain, Eli Moore, Subina Mehta, Dawn M. Moran, Jaqui Neibauer, Benjamin A. Neely, Michael V. Jakuba, Jim Johnson, Megan Duffy, Gerhard J. Herndl, Richard Giannone, Ryan Mueller, Brook L. Nunn, Martin Pabst, Samantha Peters, Andrew Rajczewski, Elden Rowland, Brian Searle, Tim Van Den Bossche, Gary J. Vora, Jacob R. Waldbauer, Haiyan Zheng, and Zihao Zhao
Biogeosciences, 21, 4889–4908, https://doi.org/10.5194/bg-21-4889-2024,https://doi.org/10.5194/bg-21-4889-2024, 2024
Short summary
High metabolic zinc demand within native Amundsen and Ross Sea phytoplankton communities determined by stable isotope uptake rate measurements
Riss M. Kell, Rebecca J. Chmiel, Deepa Rao, Dawn M. Moran, Matthew R. McIlvin, Tristan J. Horner, Nicole L. Schanke, Robert B. Dunbar, Giacomo R. DiTullio, and Mak A. Saito
EGUsphere, https://doi.org/10.5194/egusphere-2024-2085,https://doi.org/10.5194/egusphere-2024-2085, 2024
Short summary
Low cobalt inventories in the Amundsen and Ross seas driven by high demand for labile cobalt uptake among native phytoplankton communities
Rebecca J. Chmiel, Riss M. Kell, Deepa Rao, Dawn M. Moran, Giacomo R. DiTullio, and Mak A. Saito
Biogeosciences, 20, 3997–4027, https://doi.org/10.5194/bg-20-3997-2023,https://doi.org/10.5194/bg-20-3997-2023, 2023
Short summary
Major processes of the dissolved cobalt cycle in the North and equatorial Pacific Ocean
Rebecca Chmiel, Nathan Lanning, Allison Laubach, Jong-Mi Lee, Jessica Fitzsimmons, Mariko Hatta, William Jenkins, Phoebe Lam, Matthew McIlvin, Alessandro Tagliabue, and Mak Saito
Biogeosciences, 19, 2365–2395, https://doi.org/10.5194/bg-19-2365-2022,https://doi.org/10.5194/bg-19-2365-2022, 2022
Short summary
Hydrothermal trace metal release and microbial metabolism in the northeastern Lau Basin of the South Pacific Ocean
Natalie R. Cohen, Abigail E. Noble, Dawn M. Moran, Matthew R. McIlvin, Tyler J. Goepfert, Nicholas J. Hawco, Christopher R. German, Tristan J. Horner, Carl H. Lamborg, John P. McCrow, Andrew E. Allen, and Mak A. Saito
Biogeosciences, 18, 5397–5422, https://doi.org/10.5194/bg-18-5397-2021,https://doi.org/10.5194/bg-18-5397-2021, 2021
Short summary

Related subject area

Biogeochemistry: Open Ocean
Sedimentary organic matter signature hints at the phytoplankton-driven biological carbon pump in the central Arabian Sea
Medhavi Pandey, Haimanti Biswas, Daniel Birgel, Nicole Burdanowitz, and Birgit Gaye
Biogeosciences, 21, 4681–4698, https://doi.org/10.5194/bg-21-4681-2024,https://doi.org/10.5194/bg-21-4681-2024, 2024
Short summary
Hydrological cycle amplification imposes spatial patterns on the climate change response of ocean pH and carbonate chemistry
Allison Hogikyan and Laure Resplandy
Biogeosciences, 21, 4621–4636, https://doi.org/10.5194/bg-21-4621-2024,https://doi.org/10.5194/bg-21-4621-2024, 2024
Short summary
Assessing the tropical Atlantic biogeochemical processes in the Norwegian Earth System Model
Shunya Koseki, Lander R. Crespo, Jerry Tjiputra, Filippa Fransner, Noel S. Keenlyside, and David Rivas
Biogeosciences, 21, 4149–4168, https://doi.org/10.5194/bg-21-4149-2024,https://doi.org/10.5194/bg-21-4149-2024, 2024
Short summary
Evolution of oxygen and stratification and their relationship in the North Pacific Ocean in CMIP6 Earth system models
Lyuba Novi, Annalisa Bracco, Takamitsu Ito, and Yohei Takano
Biogeosciences, 21, 3985–4005, https://doi.org/10.5194/bg-21-3985-2024,https://doi.org/10.5194/bg-21-3985-2024, 2024
Short summary
Evaluation of CMIP6 model performance in simulating historical biogeochemistry across the southern South China Sea
Winfred Marshal, Jing Xiang Chung, Nur Hidayah Roseli, Roswati Md Amin, and Mohd Fadzil Bin Mohd Akhir
Biogeosciences, 21, 4007–4035, https://doi.org/10.5194/bg-21-4007-2024,https://doi.org/10.5194/bg-21-4007-2024, 2024
Short summary

Cited articles

Black, F. J., Conaway, C. H., and Flegal, A. R.: Stability of dimethylmercury in seawater and its conversion to monomethyl mercury, Environ. Sci. Technol., 43, 4056–4062, https://doi.org/10.1021/es9001218, 2009. 
Bowman, K. L., Hammerschmidt, C. R., Lamborg, C. L., and Swarr, G.: Mercury in the North Atlantic Ocean: the US GEOTRACES zonal and meridional sections, Deep Sea Res., 116, 251–261, https://doi.org/10.1016/j.dsr2.2014.07.004,116, 2015. 
Bowman, K. L., Hammerschmidt, C. R., Lamborg, C. L., Swarr, G. J., and Agathar, A. M.: Distribution of mercury species across a zonal section of the eastern tropical South Pacific Ocean (US GEOTRACES GP16), Mar. Chem., 186, 156–166, https://doi.org/10.1016/j.marchem.2016.09.005, 2016. 
Celo, V., Lean, D. R. S., and Scott, S. L.: Abiotic methylation of mercury in the aquatic environment, Sci. Total Environ., 368, 126–137, https://doi.org/10.1016/j.scitotenv.2005.09.043, 2006. 
Cossa, D., Averty, B., and Pirrone, N.: The origin of methylmercury in open Mediterranean waters, Limnol. Oceanogr., 54, 837–844, https://doi.org/10.4319/lo.2009.54.3.0837, 2009. 
Download
Short summary
Methylmercury accumulates in marine organisms and is produced by bacterial processes in sediment systems. To date, the contribution of these processes to the marine water column is poorly understood. We measured noncellular production and breakdown of methylmercury in equatorial Pacific waters. We observed enhanced production in filtered waters that suggests noncellular processes result in rapid mercury transformations and, in turn, control methylmercury concentrations in the open ocean.
Altmetrics
Final-revised paper
Preprint