Search Results - "Goepfert, Tyler J"

Constraining the Variability of the Atlantic Meridional Overturning Circulation During the Holocene by Lippold, Jörg, Pöppelmeier, Frerk, Süfke, Finn, Gutjahr, Marcus, Goepfert, Tyler J., Blaser, Patrick, Friedrich, Oliver, Link, Jasmin M., Wacker, Lukas, Rheinberger, Stefan, Jaccard, Samuel L.

“…There is a converging body of evidence supporting a measurable slowdown of the Atlantic Meridional Overturning Circulation (AMOC) as climate warms and Northern…”
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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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Some Thoughts on the Concept of Colimitation: Three Definitions and the Importance of Bioavailability by Saito, Mak A., Goepfert, Tyler J., Ritt, Jason T.

“…We discuss the concept of colimitation of primary productivity in aquatic environments, with an emphasis on reconciling this concept with recent advances in…”
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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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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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Zinc-Cobalt Colimitation of Phaeocystis Antarctica by Saito, Mak A., Goepfert, Tyler J.

“…We present evidence demonstrating the capability of "Phaeocystis antarctica "colonies to substitute cobalt (Co) and zinc (Zn) as micronutrients, in which Co…”
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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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Inverse response of 231Pa/230Th to variations of the Atlantic meridional overturning circulation in the North Atlantic intermediate water by Süfke, Finn, Schulz, Hartmut, Scheen, Jeemijn, Szidat, Sönke, Regelous, Marcel, Blaser, Patrick, Pöppelmeier, Frerk, Goepfert, Tyler J., Stocker, Thomas F., Lippold, Jörg

“…This study aims to provide a more detailed understanding of the behavior of 231 Pa/ 230 Th under varying ocean circulation regimes. The North Atlantic provides…”
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Major Early-Middle Devonian oceanic oxygenation linked to early land plant evolution detected using high-resolution U isotopes of marine limestones by Elrick, Maya, Gilleaudeau, Geoffrey J., Romaniello, Stephen J., Algeo, Thomas J., Morford, Jennifer L., Sabbatino, Monia, Goepfert, Tyler J., Cleal, Christopher, Cascales-Miñana, Borja, Chernyavskiy, Pavel

“…•High-resolution U isotopes used to investigate middle Paleozoic seawater redox trends.•Rapid oxygenation event near Early-Middle Devonian boundary (∼395…”
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Minimal cobalt metabolism in the marine cyanobacterium Prochlorococcus by Hawco, Nicholas J., McIlvin, Matthew M., Bundy, Randelle M., Tagliabue, Alessandro, Goepfert, Tyler J., Moran, Dawn M., Valentin-Alvarado, Luis, DiTullio, Giacomo R., Saito, Mak A.

“…Despite very low concentrations of cobalt in marine waters, cyanobacteria in the genus Prochlorococcus retain the genetic machinery for the synthesis and use…”
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Biogeochemistry of iron in the Arabian Sea by Moffett, James W., Vedamati, Jagruti, Goepfert, Tyler J., Pratihary, Anil, Gauns, Mangesh, Naqvi, S. W. A.

“…The Arabian Sea is a productive basin where seasonal upwelling and convective mixing result in high surface nutrient concentrations and widespread algal…”
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Acidification Enhances Hybrid N2O Production Associated with Aquatic Ammonia-Oxidizing Microorganisms by Frame, Caitlin H., Lau, Evan, Nolan, E. Joseph, Goepfert, Tyler J., Lehmann, Moritz F.

“…Ammonia-oxidizing microorganisms are an important source of the greenhouse gas nitrous oxide (N 2 O) in aquatic environments. Identifying the impact of pH on N…”
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Reduced iron associated with secondary nitrite maxima in the Arabian Sea by Moffett, James W., Goepfert, Tyler J., Naqvi, S. Wajih A.

“…Dissolved iron and Fe(II) were measured in the oxygen minimum zone (OMZ) of the Arabian Sea in September 2004. The OMZ is a well-demarcated feature…”
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Beyond Fatty Acid Methyl Esters: Expanding the Renewable Carbon Profile with Alkenones from Isochrysis sp by O’Neil, Gregory W, Carmichael, Catherine A, Goepfert, Tyler J, Fulton, James M, Knothe, Gerhard, Pui Ling Lau, Connie, Lindell, Scott R, Mohammady, Nagwa G-E, Van Mooy, Benjamin A. S, Reddy, Christopher M

“…In addition to characteristic fatty acid methyl esters (FAMEs), biodiesel produced from Isochrysis sp. contains a significant amount (14%, w/w) of…”
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Diurnal Cycling of Glutathione in Marine Phytoplankton: Field and Culture Studies by Dupont, Christopher L., Goepfert, Tyler J., Lo, Peter, Wei, Liping, Ahner, Beth A.

“…Glutathione is an abundant intracellular thiol that is involved in the detoxification of reactive oxygen species generated in the presence of light. We used…”
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Thaumarchaeal ecotype distributions across the equatorial Pacific Ocean and their potential roles in nitrification and sinking flux attenuation by Santoro, Alyson E., Saito, Mak A., Goepfert, Tyler J., Lamborg, Carl H., Dupont, Chris L., DiTullio, Giacomo R.

“…Thaumarchaea are among the most abundant microbial groups in the ocean, but controls on their abundance and the distribution and metabolic potential of…”
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Carbonate uranium isotopes across Cretaceous OAE 2 in southern Mexico: New constraints on the global spread of marine anoxia and organic carbon burial by Kulenguski, Joseph T., Gilleaudeau, Geoffrey J., Kaufman, Alan J., Kipp, Michael A., Tissot, François L.H., Goepfert, Tyler J., Pitts, Alan D., Pierantoni, Pietropaolo, Evans, Michael N., Elrick, Maya

“…Oceanic anoxic events (OAEs) represent discrete intervals of decreased marine oxygen concentrations often associated with volcanism, enhanced organic carbon…”
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A mechanistic investigation of the coral Mn/Ca-based trade-wind proxy at Kiritimati by Kojima, Alice C., Thompson, Diane M., Hlohowskyj, Stephan R., Carilli, Jessica E., Gordon, Gwyneth, Goepfert, Tyler J., Sayani, Hussein R., Marchitto, Thomas M., Cobb, Kim M.

“…Tropical Pacific trade-wind behavior is linked to the El Niño-Southern Oscillation and Pacific Decadal Variability, which modulate the rate of climate change…”
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Biogeochemistry of iron in the A rabian S ea by Moffett, James W., Vedamati, Jagruti, Goepfert, Tyler J., Pratihary, Anil, Gauns, Mangesh, Naqvi, S. W. A.

“…Abstract The Arabian Sea is a productive basin where seasonal upwelling and convective mixing result in high surface nutrient concentrations and widespread…”
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Acidification Enhances Hybrid N 2 O Production Associated with Aquatic Ammonia-Oxidizing Microorganisms by Frame, Caitlin H, Lau, Evan, Nolan, 4th, E Joseph, Goepfert, Tyler J, Lehmann, Moritz F

“…Ammonia-oxidizing microorganisms are an important source of the greenhouse gas nitrous oxide (N O) in aquatic environments. Identifying the impact of pH on N O…”
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