Research in MC&G ranges from the glacial history of the Antarctic ice sheet and the formation of surface films in the upper micron of the ocean to the cycling of carbon through various ocean reservoirs, the history of ocean circulation recorded in the growth bands of coral, and the role of hydrothermal vents and seawater-rock interactions on the composition of the oceans.

Recent Submissions

  • Variations in rates of biological production in the Beaufort Gyre as the arctic changes: Rates from 2011 to 2016 

    Ji, Brenda Y.; Sandwith, Zoe O.; Williams, William J.; Diaconescu, Oana; Ji, Rubao; Li, Yun; Van Scoy, Emma; Yamamoto-Kawai, Michiyo; Zimmermann, Sarah; Stanley, Rachel H. R. (American Geophysical Union, 2019-04-30)
    The Arctic Ocean is experiencing profound environmental changes as the climate warms. Understanding how these changes will affect Arctic biological productivity is key for predicting future Arctic ecosystems and the global ...
  • A productivity collapse to end earth's great oxidation 

    Hodgskiss, Malcolm S. W.; Crockford, Peter W.; Peng, Yongbo; Wing, Boswell A.; Horner, Tristan J. (National Academy of Sciences, 2019-08-27)
    It has been hypothesized that the overall size of—or efficiency of carbon export from—the biosphere decreased at the end of the Great Oxidation Event (GOE) (ca. 2,400 to 2,050 Ma). However, the timing, tempo, and trigger ...
  • Extracellular superoxide production by key microbes in the global ocean 

    Sutherland, Kevin M.; Coe, Allison; Gast, Rebecca J.; Plummer, Sydney; Suffridge, Christopher; Diaz, Julia M.; Bowman, Jeff S.; Wankel, Scott D.; Hansel, Colleen M. (Wiley, 2019-07-10)
    Bacteria and eukaryotes produce the reactive oxygen species superoxide both within and outside the cell. Although superoxide is typically associated with the detrimental and sometimes fatal effects of oxidative stress, it ...
  • Underground gamma-ray measurements of radium isotopes from hydrothermal plumes in the deep Pacific Ocean 

    Hult, Mikael; Charette, Matthew A.; Lutter, Guillaume; Marissens, Gerd; Henderson, Paul B.; Sobiech-Matura, Katarzyna; Simgen, Hardy (Elsevier, 2019-07-31)
    The radium isotopes 226Ra and 228Ra can provide important data on the dynamics of deep-sea hydrothermal plumes that travel the oceans for decades and have great impact on the ocean chemistry. This study focuses on parameters ...
  • Towards integrating evolution, metabolism, and climate change studies of marine ecosystems 

    Baltar, Federico; Bayer, Barbara; Bednarsek, Nina; Deppeler, Stacy; Escribano, Ruben; Gonzalez, Carolina E.; Hansman, Roberta L.; Mishra, Rajani Kanta; Moran, Mary Ann; Repeta, Daniel J.; Robinson, Carol; Sintes, Eva; Tamburini, Christian; Valentin, Luis E.; Herndl, Gerhard J. (Elsevier, 2019-07-24)
    Global environmental changes are challenging the structure and functioning of ecosystems. However, a mechanistic understanding of how global environmental changes will affect ecosystems is still lacking. The complex and ...
  • NADPH-dependent extracellular superoxide production is vital to photophysiology in the marine diatom Thalassiosira oceanica 

    Diaz, Julia M.; Plummer, Sydney; Hansel, Colleen M.; Andeer, Peter F.; Saito, Mak A.; McIlvin, Matthew R. (National Academy of Sciences, 2019-08-13)
    Reactive oxygen species (ROS) like superoxide drive rapid transformations of carbon and metals in aquatic systems and play dynamic roles in biological health, signaling, and defense across a diversity of cell types. In ...
  • Dynamic regulation of extracellular superoxide production by the coccolithophore Emiliania huxleyi (CCMP 374) 

    Plummer, Sydney; Taylor, Alexander E.; Harvey, Elizabeth L.; Hansel, Colleen M.; Diaz, Julia M. (Frontiers Media, 2019-07-12)
    In marine waters, ubiquitous reactive oxygen species (ROS) drive biogeochemical cycling of metals and carbon. Marine phytoplankton produce the ROS superoxide (O2−) extracellularly and can be a dominant source of O2− in ...
  • Ocean time series observations of changing marine ecosystems: An era of integration, synthesis, and societal applications 

    Benway, Heather M.; Lorenzoni, Laura; White, Angelicque E.; Fiedler, Björn; Levine, Naomi M.; Nicholson, David P.; DeGrandpre, Michael D.; Sosik, Heidi M.; Church, Matthew J.; O'Brien, Todd D.; Leinen, Margaret S.; Weller, Robert A.; Karl, David M.; Henson, Stephanie A.; Letelier, Ricardo M. (Frontiers Media, 2019-07-12)
    Sustained ocean time series are critical for characterizing marine ecosystem shifts in a time of accelerating, and at times unpredictable, changes. They represent the only means to distinguish between natural and anthropogenic ...
  • Sea ice meltwater and Circumpolar Deep Water drive contrasting productivity in three Antarctic polynyas 

    Moreau, Sebastien; Lannuzel, Delphine; Janssens, Julie; Arroyo, Mar C.; Corkill, Matthew; Cougnon, Eva; Genovese, Cristina; Legresy, Benoit; Lenton, Andrew; Puigcorbé, Viena; Ratnarajah, Lavenia; Rintoul, Stephen R.; Roca-Martí, Montserrat; Rosenberg, Mark; Shadwick, Elizabeth H.; Silvano, Alessandro; Strutton, Peter G.; Tilbrook, Bronte (American Geophysical Union, 2019-03-28)
    In the Southern Ocean, polynyas exhibit enhanced rates of primary productivity and represent large seasonal sinks for atmospheric CO2. Three contrasting east Antarctic polynyas were visited in late December to early January ...
  • Shelf-basin interactions and water mass residence times in the western Arctic Ocean: Insights provided by radium isotopes 

    Kipp, Lauren; Kadko, David C.; Pickart, Robert S.; Henderson, Paul B.; Moore, Willard S.; Charette, Matthew A. (American Geophysical Union, 2019-04-26)
    Radium isotopes are produced through the decay of thorium in sediments and are soluble in seawater; thus, they are useful for tracing ocean boundary‐derived inputs to the ocean. Here we apply radium isotopes to study ...
  • Soil salinity and pH drive soil bacterial community composition and diversity along a lateritic slope in the Avon River critical zone observatory, Western Australia. 

    O’Brien, Flora J. M.; Almaraz, Maya; Foster, Melissa A.; Hill, Alice F.; Huber, David P.; King, Elizabeth K.; Langford, Harry; Lowe, Mary-Anne; Mickan, Bede S.; Miller, Valerie S.; Moore, Oliver W.; Mathes, Falko; Gleeson, Deirdre; Leopold, Matthias (Frontiers Media, 2019-07-02)
    Soils are crucial in regulating ecosystem processes, such as nutrient cycling, and supporting plant growth. To a large extent, these functions are carried out by highly diverse and dynamic soil microbiomes that are in turn ...
  • Fluid-rock interactions in the shallow Mariana forearc: Carbon cycling and redox conditions 

    Albers, Elmar; Bach, Wolfgang; Klein, Frieder; Menzies, Catriona D.; Lucassen, Friedrich; Teagle, Damon A.H. (European Geosciences Union, 2019-06-24)
    Few data exist that provide insight into processes affecting the long-term carbon cycle at shallow forearc depths. To better understand the mobilization of C in sediments and crust of the subducting slab, we investigated ...
  • Archaea dominate oxic subseafloor communities over multimillion-year time scales 

    Vuillemin, Aurèle; Wankel, Scott D.; Coskun, Ömer K.; Magritsch, Tobias; Vargas, Sergio; Estes, Emily R.; Spivack, Arthur J.; Smith, David C.; Pockalny, Robert; Murray, Richard W.; D'Hondt, Steven; Orsi, William D. (American Association for the Advancement of Science, 2019-06-19)
    Ammonia-oxidizing archaea (AOA) dominate microbial communities throughout oxic subseafloor sediment deposited over millions of years in the North Atlantic Ocean. Rates of nitrification correlated with the abundance of these ...
  • The mutual interplay between calcification and coccolithovirus infection 

    Johns, Christopher T.; Grubb, Austin R.; Nissimov, Jozef I.; Natale, Frank; Knapp, Viki; Mui, Alwin; Fredricks, Helen F.; Van Mooy, Benjamin A. S.; Bidle, Kay D. (Wiley, 2018-07-24)
    Two prominent characteristics of marine coccolithophores are their secretion of coccoliths and their susceptibility to infection by coccolithoviruses (EhVs), both of which display variation among cells in culture and in ...
  • SUBSEA 2018 expedition to Lo'ihi seamount, Hawai'i 

    Lim, Darlene S.S.; Raineault, Nicole A.; Alanis, Briana; Brier, John A.; Chan, Eric; Emerson, David; Garcia, Angela; German, Christopher R.; Huber, Julie A.; Nawotniak, Shannon Kobs; Milesi, Vincent; Shields, Ashley; Shock, Everett; Smith, Amy; Seewald, Jeffrey S.; Trembath-Reichert, Elizabeth; Mirmalek, Zara; Miller, Matthew J.; Cohen, Tamar; Lees, David; Deans, Matthew (Oceanography Society, 2019-03)
  • Significance of perylene for source allocation of terrigenous organic matter in aquatic sediments. 

    Hanke, Ulrich; Lima-Braun, Ana L.; Eglinton, Timothy I.; Donnelly, Jeffrey P.; Galy, Valier; Poussart, Pascale F.; Hughen, Konrad A.; McNichol, Ann P.; Xu, Li; Reddy, Christopher M. (American Chemical Society, 2019-06-19)
    Perylene is a frequently abundant, and sometimes the only polycyclic aromatic hydrocarbon (PAH) in aquatic sediments, but its origin has been subject of a longstanding debate in geochemical research and pollutant forensics ...
  • Evolving and sustaining ocean best practices and standards for the next decade 

    Pearlman, Jay; Bushnell, Mark; Coppola, Laurent; Karstensen, Johannes; Buttigieg, Pier Luigi; Pearlman, Francoise; Simpson, Pauline; Barbier, Michele; Muller-Karger, Frank E.; Munoz-Mas, Cristian; Pissierssens, Peter; Chandler, Cynthia L.; Hermes, Juliet; Heslop, Emma; Jenkyns, Reyna; Achterberg, Eric P.; Bensi, Manuel; Bittig, Henry C.; Blandin, Jerome; Bosch, Julie; Bourles, Bernard; Bozzano, Roberto; Buck, Justin J. H.; Burger, Eugene; Cano, Daniel; Cardin, Vanessa; Llorens, Miguel Charcos; Cianca, Andrés; Chen, Hua; Cusack, Caroline; Delory, Eric; Garello, Rene; Giovanetti, Gabriele; Harscoat, Valerie; Hartman, Susan; Heitsenrether, Robert; Jirka, Simon; Lara-Lopez, Ana; Lantér, Nadine; Leadbetter, Adam; Manzella, Giuseppe; Maso, Joan; McCurdy, Andrea; Moussat, Eric; Ntoumas, Manolis; Pensieri, Sara; Petihakis, George; Pinardi, Nadia; Pouliquen, Sylvie; Przeslawski, Rachel; Roden, Nicholas P.; Silke, Joe; Tamburri, Mario N.; Tang, Hairong; Tanhua, Toste; Telszewski, Maciej; Testor, Pierre; Thomas, Julie; Waldmann, Christoph; Whoriskey, Frederick G. (Frontiers Media, 2019-06-04)
    The oceans play a key role in global issues such as climate change, food security, and human health. Given their vast dimensions and internal complexity, efficient monitoring and predicting of the planet’s ocean must be a ...
  • East Asian Monsoon variability since the sixteenth century 

    Goodkin, Nathalie F.; Bolton, Annette; Hughen, Konrad A.; Karnauskas, Kristopher B.; Griffin, Sheila; Phan, Kim Hoang; Vo, Si Tuan; Ong, Maria Rosabelle; Druffel, Ellen R. M. (American Geophysical Union, 2019-04-16)
    The East Asian Monsoon (EAM) impacts storms, freshwater availability, wind energy production, coal consumption, and subsequent air quality for billions of people across Asia. Despite its importance, the EAM's long‐term ...
  • Decadal trends in the ocean carbon sink 

    DeVries, Timothy; Le Quere, Corinne; Andrews, Oliver D.; Berthet, Sarah; Hauck, Judith; Ilyina, Tatiana; Landschützer, Peter; Lenton, Andrew; Lima, Ivan D.; Nowicki, Michael; Schwinger, Jorg; Séférian, Roland (National Academy of Sciences, 2019-05-28)
    Measurements show large decadal variability in the rate of CO2 accumulation in the atmosphere that is not driven by CO2 emissions. The decade of the 1990s experienced enhanced carbon accumulation in the atmosphere relative ...
  • Complete arsenic-based respiratory cycle in the marine microbial communities of pelagic oxygen-deficient zones. 

    Saunders, Jaclyn K.; Fuchsman, Clara A.; McKay, Cedar; Rocap, Gabrielle (National Academy of Sciences, 2019-04-29)
    Microbial capacity to metabolize arsenic is ancient, arising in response to its pervasive presence in the environment, which was largely in the form of As(III) in the early anoxic ocean. Many biological arsenic transformations ...

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