Search Results - "Lamborg, Carl H."

Mercury methylation by metabolically versatile and cosmopolitan marine bacteria by Lin, Heyu, Ascher, David B., Myung, Yoochan, Lamborg, Carl H., Hallam, Steven J., Gionfriddo, Caitlin M., Holt, Kathryn E., Moreau, John W.

“…Microbes transform aqueous mercury (Hg) into methylmercury (MeHg), a potent neurotoxin that accumulates in terrestrial and marine food webs, with potential…”
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Mercury biogeochemical cycling in the ocean and policy implications by Mason, Robert P., Choi, Anna L., Fitzgerald, William F., Hammerschmidt, Chad R., Lamborg, Carl H., Soerensen, Anne L., Sunderland, Elsie M.

“…Anthropogenic activities have enriched mercury in the biosphere by at least a factor of three, leading to increases in total mercury (Hg) in the surface ocean…”
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Mercury in the North Atlantic Ocean: The U.S. GEOTRACES zonal and meridional sections by Bowman, Katlin L., Hammerschmidt, Chad R., Lamborg, Carl H., Swarr, Gretchen

“…Mercury (Hg) in the ocean undergoes many chemical transformations, including in situ production of monomethylmercury (MMHg), the form that biomagnifies in…”
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Extensive Dark Biological Production of Reactive Oxygen Species in Brackish and Freshwater Ponds by Zhang, Tong, Hansel, Colleen M, Voelker, Bettina M, Lamborg, Carl H

“…Within natural waters, photodependent processes are generally considered the predominant source of reactive oxygen species (ROS), a suite of biogeochemically…”
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A global ocean inventory of anthropogenic mercury based on water column measurements by Lamborg, Carl H., Hammerschmidt, Chad R., Bowman, Katlin L., Swarr, Gretchen J., Munson, Kathleen M., Ohnemus, Daniel C., Lam, Phoebe J., Heimbürger, Lars-Eric, Rijkenberg, Micha J. A., Saito, Mak A.

“…GEOTRACES sampling of deep water from the Atlantic, Pacific and Southern oceans allows an estimate of the amount (tripled in surface waters) and distribution…”
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An examination of the role of particles in oceanic mercury cycling by Lamborg, Carl H., Hammerschmidt, Chad R., Bowman, Katlin L.

“…Recent models of global mercury (Hg) cycling have identified the downward flux of sinking particles in the ocean as a prominent Hg removal process from the…”
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Multiple nutrient stresses at intersecting Pacific Ocean biomes detected by protein biomarkers by Saito, Mak A., McIlvin, Matthew R., Moran, Dawn M., Goepfert, Tyler J., DiTullio, Giacomo R., Post, Anton F., Lamborg, Carl H.

“…Marine primary productivity is strongly influenced by the scarcity of required nutrients, yet our understanding of these nutrient limitations is informed by…”
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Increase in mercury in Pacific yellowfin tuna by Drevnick, Paul E., Lamborg, Carl H., Horgan, Martin J.

“…Mercury is a toxic trace metal that can accumulate to levels that threaten human and environmental health. Models and empirical data suggest that humans are…”
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Mercury species concentrations and fluxes in the Central Tropical Pacific Ocean by Munson, Kathleen M., Lamborg, Carl H., Swarr, Gretchen J., Saito, Mak A.

“…The formation of the toxic and bioaccumulating monomethylmercury (MMHg) in marine systems is poorly understood, due in part to sparse data from many ocean…”
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Distribution of mercury species across a zonal section of the eastern tropical South Pacific Ocean (U.S. GEOTRACES GP16) by Bowman, Katlin L., Hammerschmidt, Chad R., Lamborg, Carl H., Swarr, Gretchen J., Agather, Alison M.

“…Monomethylmercury is a neurotoxin formed in the ocean that accumulates in fish. To better understand the chemical cycling of mercury (Hg) in the ocean,…”
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Slow-spreading submarine ridges in the South Atlantic as a significant oceanic iron source by Saito, Mak A., Noble, Abigail E., Tagliabue, Alessandro, Goepfert, Tyler J., Lamborg, Carl H., Jenkins, William J.

“…Low levels of the micronutrient iron limit primary production and nitrogen fixation in large areas of the global ocean. Measurements in the South Atlantic…”
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Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world’s oceans by Tseng, Chun-Mao, Ang, Shin-Jing, Chen, Yi-Sheng, Shiao, Jen-Chieh, Lamborg, Carl H., He, Xiaoshuai, Reinfelder, John R.

“…Bluefin tuna (BFT), highly prized among consumers, accumulate high levels of mercury (Hg) as neurotoxic methylmercury (MeHg). However, how Hg bioaccumulation…”
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Atmospheric Hg Emissions from Preindustrial Gold and Silver Extraction in the Americas: A Reevaluation from Lake-Sediment Archives by Engstrom, Daniel R, Fitzgerald, William F, Cooke, Colin A, Lamborg, Carl H, Drevnick, Paul E, Swain, Edward B, Balogh, Steven J, Balcom, Prentiss H

“…Human activities over the last several centuries have transferred vast quantities of mercury (Hg) from deep geologic stores to actively cycling earth-surface…”
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Dynamic mercury methylation and demethylation in oligotrophic marine water by Munson, Kathleen M., Lamborg, Carl H., Boiteau, Rene M., Saito, Mak A.

“…Mercury bioaccumulation in open-ocean food webs depends on the net rate of inorganic mercury conversion to monomethylmercury in the water column. We measured…”
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Basin-scale inputs of cobalt, iron, and manganese from the Benguela-Angola front to the South Atlantic Ocean by Noble, Abigail E., Lamborg, Carl H., Ohnemus, Dan C., Lam, Phoebe J., Goepfert, Tyler J., Measures, Chris I., Frame, Caitlin H., Casciotti, Karen L., DiTullio, Giacomo R., Jennings, Joe, Saito, Mak A.

“…We present full-depth zonal sections of total dissolved cobalt, iron, manganese, and labile cobalt from the South Atlantic Ocean. A basin-scale plume from the…”
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Revisiting Carbon Flux through the Ocean's Twilight Zone by Buesseler, Ken O., Lamborg, Carl H., Boyd, Philip W., Lam, Phoebe J., Trull, Thomas W., Bidigare, Robert R., Bishop, James K. B., Casciotti, Karen L., Dehairs, Frank, Elskens, Marc, Honda, Makio, Karl, David M., Siegel, David A., Silver, Mary W., Steinberg, Deborah K., Valdes, Jim, Van Mooy, Benjamin, Wilson, Stephanie

“…The oceanic biological pump drives sequestration of carbon dioxide in the deep sea via sinking particles. Rapid biological consumption and remineralization of…”
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Dissolved low-molecular weight thiol concentrations from the U.S. GEOTRACES North Atlantic Ocean zonal transect by Swarr, Gretchen J., Kading, Tristan, Lamborg, Carl H., Hammerschmidt, Chad R., Bowman, Katlin L.

“…Low-molecular weight thiols, including cysteine and glutathione, are biomolecules involved in a variety of metabolic pathways and act as important antioxidant…”
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Hydrothermal trace metal release and microbial metabolism in the northeastern Lau Basin of the South Pacific Ocean by Cohen, Natalie R, Noble, Abigail E, Moran, Dawn M, McIlvin, Matthew R, Goepfert, Tyler J, Hawco, Nicholas J, German, Christopher R, Horner, Tristan J, Lamborg, Carl H, McCrow, John P, Allen, Andrew E, Saito, Mak A

“…Bioactive trace metals are critical micronutrients for marine microorganisms due to their role in mediating biological redox reactions, and complex…”
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The oceanographic toolbox for the collection of sinking and suspended marine particles by McDonnell, Andrew M.P., Lam, Phoebe J., Lamborg, Carl H., Buesseler, Ken O., Sanders, Richard, Riley, Jennifer S., Marsay, Chris, Smith, Helen E.K., Sargent, Elizabeth C., Lampitt, Richard S., Bishop, James K.B.

“…•Reviews particle collection techniques with focus on GEOTRACES-relevant methods.•Collection methods for sinking and suspended particles…”
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Has Submarine Groundwater Discharge Been Overlooked as a Source of Mercury to Coastal Waters? by Bone, Sharon E, Charette, Matthew A, Lamborg, Carl H, Gonneea, Meagan Eagle

“…We measured the mercury (Hg) in groundwater, aquifer sediments, and surface water in Waquoit Bay (Massachusetts) and found that this toxic metal (range: …”
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