Photo of Aron Stubbins
Associate Professor, Northeastern University


Research Interests:

Our research centers upon an integral component of the global carbon cycle, dissolved organic carbon (DOC). All forms of life release DOC, sometimes on purpose, sometimes as waste. DOC lost from one organism provides sustenance to others, including microorganisms at the base of aquatic foodwebs that fuel life in our oceans. DOC cycling also redistributes carbon between land, ocean and atmosphere. Rivers carry vast amounts of DOC from land to the ocean where most of the global store of DOC resides. As the ocean DOC pool of carbon is equivalent in magnitude to the CO2 pool in the Earth’s atmosphere small shifts in the size of the oceanic DOC pool influence climate. In addition to its importance as a metabolite and carbon pool, the complexity of DOC makes it incredibly interesting to study. DOC contains thousands, if not millions or trillions, of different molecules. Each derived from a living organism and subsequently altered in the environment. The molecular messages carried within DOC allow a forensic analysis of ecosystem health today and the likely response of ecosystems to local and global change.


Postdoc: Sasha Wagner 

Graduate Students: Christina Codden (PhD), Kevin Ryan (PhD), Max Liao (UGA Engineering MEng with Coastal Certificate), Nicholas Castellane (Savannah State University Marine Science MSc), Lixin Zhu (Eastern Normal University, China, Chemical Oceanography PhD), Ziming Fang (Xiamen University, China, Chemical Oceanography PhD)

Curriculum Vitae: 

Aron Stubbins's Selected Publications

Rossel PE, Stubbins A, Hach PF, Dittmar T.  2015.  Bioavailability and molecular composition of dissolved organic matter from a diffuse hydrothermal system. Marine Chemistry.
Mopper K, Kieber DJ, Stubbins A.  2015.  Marine Photochemistry of Organic Matter: Processes and Impacts. Biogeochemistry of Dissolved Organic Matter.
Fellman JB, Hood E, Spencer RGM, Stubbins A, Raymond PA.  2014.  Watershed Glacier Coverage Influences Dissolved Organic Matter Biogeochemistry in Coastal Watersheds of Southeast Alaska. Ecosystems. 17(6):1014-1025.
Spencer RGM, Guo W, Raymond PA, Dittmar T, Hood E, Fellman J, Stubbins A.  2014.  Source and biolability of ancient dissolved organic matter in glacier and lake ecosystems on the Tibetan Plateau. Geochimica et Cosmochimica Acta.
Chen H, Stubbins A, E. Perdue M, Green NW, Helms JR, Mopper K, Hatcher PG.  2014.  Ultrahigh resolution mass spectrometric differentiation of dissolved organic matter isolated by coupled reverse osmosis-electrodialysis from various major oceanic water masses. Marine Chemistry. 164:48-59.
Van Stan JT, Stubbins A, Bittar T, Reichard JS, Wright KA, Jenkins RB.  2014.  Tillandsia usneoides (L.) L. (Spanish moss) water storage and leachate characteristics from two maritime oak forest settings. Ecohydrology.
Helms JR, Mao J, Stubbins A, Schmidt-Rohr K, Spencer RGM, Hernes PJ, Mopper K.  2014.  Loss of optical and molecular indicators of terrigenous dissolved organic matter during long-term photobleaching. Aquatic Sciences. 76(3):353-373.
Spencer RGM, Vermilyea A, Fellman J, Raymond P, Stubbins A, Scott D, Hood E.  2014.  Seasonal variability of organic matter composition in an Alaskan glacier outflow: insights into glacier carbon sources. Environmental Research Letters. 9(5):055005.
Green NW, E. Perdue M, Aiken GR, Butler KD, Chen H, Dittmar T, Niggemann J, Stubbins A.  2014.  An intercomparison of three methods for the large-scale isolation of oceanic dissolved organic matter. Marine Chemistry. 161:14-19.
Stubbins A, Lapierre J-F, Berggren M, Prairie Y, Dittmar T, del Giorgio P.  2014.  What’s in an EEM? Molecular signatures associated with dissolved organic fluorescence in boreal Canada Environmental Science & Technology.