Photo of Aron Stubbins
Associate Professor, Northeastern University

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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.

Personnel:

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

Hawkes JA, Rossel PE, Stubbins A, Butterfield D, Connelly DP, Achterberg EP, Koschinsky A, Chavagnac érie, Hansen CT, Bach W et al..  2015.  Efficient removal of recalcitrant deep-ocean dissolved organic matter during hydrothermal circulation. Nature Geoscience.
Helms JR, Mao J, Chen H, E. Perdue M, Green NW, Hatcher PG, Mopper K, Stubbins A.  2015.  Spectroscopic characterization of oceanic dissolved organic matter isolated by reverse osmosis coupled with electrodialysis. Marine Chemistry.
Fellman JB, Hood E, Raymond PA, Stubbins A, Spencer RGM.  2015.  Spatial Variation in the Origin of Dissolved Organic Carbon in Snow on the Juneau Icefield, Southeast Alaska. Environmental Science & Technology. 49(19):11492-11499.
Spencer RGM, Mann PJ, Dittmar T, Eglinton TI, McIntyre C, R. Holmes M, Zimov N, Stubbins A.  2015.  Detecting the signature of permafrost thaw in Arctic rivers. Geophysical Research Letters.
Repeta DJ, Aluwihare L, Carlson C, Liu Z, Nelson C, Stubbins A.  2015.  Introduction to the special issue on the Biogeochemistry of Dissolved Organic Matter. Marine Chemistry. 177:203-204.
Logvinova CL, Frey KE, Mann PJ, Stubbins A, Spencer RGM.  2015.  Assessing the potential impacts of declining arctic sea ice cover on the photochemical degradation of dissolved organic matter in the Chukchi and Beaufort seas. Journal of Geophysical Research: Biogeosciences. :n/a-n/a.

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