Publications (last updated July 2018)

Google Scholar Profile [Link]

Published Journal Articles:


  1. Drake, T.W., Tank, S.E., Zhulidov, A.V., Holmes, R.M., Gurtovaya, Spencer, R.G.M. 2018. Increasing alkalinity export from large Russian rivers. Environmental Science & Technology, (In Press). [Link]


  1. Johnston, S.E., Shorina, N., Bulygina, E., Vorobjeva, T., Chupakova, A., Klimov, S.I., Kellerman, A.M., Guillemette, F., Shiklomanov, A., Podgorski, D.C., Spencer, R.G.M.2018. Flux and seasonality of dissolved organic matter from the Northern Dvina (Severnaya Dvina) River, Russia. Journal of Geophysical Research-Biogeosciences 123: doi: 10.1002/2017JG004337.[Link]


  1. Drake, T.W., Guillemette, F., Hemingway, J.D., Chanton, J.P., Podgorski, D.C., Zimov, N.S., Spencer, R.G.M. 2018. The ephemeral signature of permafrost carbon in an arctic fluvial network. Journal of Geophysical Research-Biogeosciences 123: doi: 10.1029/2017JG004311. [Link]


  1. Burke, A., Present, T.M., Paris, G., Rae, E.C.M., Sandilands, B.H., Gaillardet, J., Peucker-Ehrenbrink, B., Fischer, W.W., McClelland, J.W., Spencer, R.G.M., Voss, B.M., Adkins, J.F. 2018. Sulfur isotopes in rivers: Insights into global weathering budgets, pyrite oxidation, and the modern sulfur cycle. Earth and Planetary Science Letters, 496, 168-177. [Link]


  1. Podgorski, D.C., Zito, P., McGuire, J.T., Martinovic-Weigelt, D., Cozzarelli, I.M., Bekins, B.A., Spencer, R.G.M.2018. Examining natural attention and acute toxicity of petroleum-derived dissolved organic matter with optical spectroscopy. Environmental Science & Technology, 52, 6157-6166. [Link]


  1. Wang, Y., Xu, Y., Spencer, R.G.M., Zito, P., Kellerman, A., Podgorski, D., Xiao, W., Wei, H., Yang, R.Y. 2018. Selective leaching of dissolved organic matter from alpine permafrost soils on the Qinghai-Tibetan Plateau. Journal of Geophysical Research-Biogeosciences 123: 1005-1016. [Link]


  1. Kellerman, A.M., Guillemette, F., Podgorski, D.C., Aiken, G.R., Butler, K.D., Spencer, R.G.M.2018. Unifying concepts linking dissolved organic matter composition to persistence in aquatic ecosystems. Environmental Science & Technology, 52, 2538-2548. [Link]


  1. Bauters, M., Drake, T.W., Verbeeck, H., Bode, S., Herve-Fernandez, P., Zito, P., Podgorski, D.C., Boyemba, F., Makelele, I., Ntaboba, L.C., Spencer, R.G.M., Boeckx, P. 2018. High fire-derived nitrogen deposition on central African forests. Proceedings of the National Academy of Sciences, 115: 549-554. [Link]


  1. Drake, T.W., Raymond, P.A., Spencer, R.G.M.2017. Terrestrial carbon inputs to inland waters: A current synthesis of estimates and uncertainty. Limnology and Oceanography Letters: doi: 10.1002/lol2.10055. [Link]


  1. Pelletier, A.R., Castello, L., Zhulidov, A.V., Gurtovaya, T.Y., Robarts, R.D., Holmes, R.M., Zhulidov, D.A., Spencer, R.G.M.2017. Temporal and longitudinal mercury trends in burbot (Lota lota) in the Russian Arctic. Environmental Science & Technology 51: 13436-13442.[Link]


  1. Eckard, R.S., Pellerin, B.A., Bergamaschi, B.A., Bachand, P.A.M., Bachand, S.M., Spencer, R.G.M., Hernes, P.J. 2017. Dissolved organic matter compositional change and biolability during two storm runoff events in a small agricultural watershed. Journal of Geophysical Research-Biogeosciences 122: 2634-2650. [Link]


  1. Matiasek, S.J., Pellerin, B.A., Spencer, R.G.M., Bergamaschi, B.A., Hernes, P.J. 2017. Irrigation as a fuel pump to freshwater ecosystems. Biogeochemistry 136: 71-90. [Link]


  1. Hemingway, J.D., Schefuss, E., Spencer, R.G.M., Dinga, J.B., Eglinton, T.I., McIntyre, C., Galy, V.V. 2017. Hydrologic controls on seasonal and inter-annual variability of Congo River particulate organic matter source and reservoir age. Chemical Geology 466: 454-465. [Link]


  1. Wagner, S., Brandes, J., Goranov, A., Drake, T.W., Spencer, R.G.M., Stubbins, A. 2017. Online quanitification and compound-specific stable isotopic analysis of blackcarbon in environmental matrices via liquid chromatography-isotope ratio mass spectrometry. Limnology and Oceanography: Methods: doi: 10.1002/lom3.10219. [Link]


  1. Guillemette, F., Bianchi, T.S., Spencer, R.G.M.2017. Old before your time: Ancient carbon incorporation in contemporary aquatic foodwebs. Limnology and Oceanography62: 13929242. [Link]


  1. Stubbins, A., Mann, P.J., Powers, L., Bittar, T.B., Dittmar, T., McIntyre, C., Eglinton, T.I., Zimov, N., Spencer, R.G.M.2017. Low photolability of yedoma permafrost dissolved organic carbon. Journal of Geophysical Research-Biogeosciences122: 200-211. [Link]


  1. Zhou, Y., Ma, Y., Zhang, Y., Qin B., Jeppesen, E., Shi, K., Brookes, J.D., Spencer, R.G.M., Zhu, G., Gao, G. 2017. Improving water quality in China: Environmental investment pays dividends. Water Research 118: 152-159. [Link]


  1. Hernes, P.J., Spencer, R.G.M., Dyda, R.Y., O’Geen, A.T., Dahlgren, R.A. 2017. The genesis and exodus of vascular plant DOM from an oak woodland. Frontiers in Earth Science 5: 9. [Link]


  1. Shmelev, D., Veremeeva, A., Kraev, G., Kholodov, A., Spencer, R.G.M., Walker, W.S., Rivkina, E. 2017. Estimation and seinsitivity of carbon storage in permafrost of North-Eastern Yakutia. Permafrost and Periglacial Processes 28: 379-390. [Link]


  1. Riedel, T., Zark, M., Vahatalo, A.V., Niggemann, J., Spencer, R.G.M., Hernes, P.J., Dittmar, T. 2016. Molecular signatures of biogeochemical transformations in dissolved organic matter from ten World Rivers. Frontiers in Earth Science 4: 85. [Link]


  1. Bittar, T.B., Berger, S.A., Birsa, L.M., Walters, T.L., Thompson, M.E., Spencer, R.G.M., Mann, E.L., Stubbins, A., Frischer, M.E., Brandes, J.A. 2016. Seasonal dynamics of dissolved, particulate and microbial components of a tidal saltmarsh-dominated estuary under contrasting levels of freshwater discharge. Estuarine, Coastal and Shelf Science182: 72-85.[Link]


  1. Yates, C.A., Johnes, P.J., Spencer, R.G.M.2016. Assesing the drivers of dissolved organic matter export from two contrasting lowland catchments, U.K. Science of the Total Environment569: 1330-1340. [Link]


  1. O’Donnell, J.A., Aiken, G.R., Butler, K.D., Guillemette, F., Podgorski, D.C., Spencer, R.G.M.2016. DOM composition and transformation in boreal forest soils: The effects of temperature and organic-horizon decomposition state. Journal of Geophysical Research-Biogeosciences121: 2727-2744.[Link]


  1. Bischoff, J., Sparkes, R.B., Spencer, R.G.M., Semiletov, I.P., Dudarev, O.V., van Dongen, B.E., Talbot, H.M. 2016. Source, transport and fate of soil organic matter inferred from microbial biomarker lipids on the East Siberian Arctic Shelf. Biogeosciences13: 4899-5001.[Link]


  1. Oliver, A.A., Spencer, R.G.M., Deas, M.L., Dahlgren, R.A. 2016. Impacts of seasonality and anthropogenic impoundments on dissolved organic matter dynamics in the Klamath River (Oregon/California, USA). Journal of Geophysical Research-Biogeosciences121: 1946-1958.[Link]


  1. Spencer, R.G.M., Hernes, P.J., Dinga, B., Wabakanghanzi, J.N., Drake, T.W., Six, J. 2016. Origins, seasonality and fluxes of organic matter in the Congo River. Global Biogeochemical Cycles30: 1105-1121.[Link]


  1. Henchiri, S., Gaillardet, J., Dellinger, M., Bouchez, J., Spencer, R.G.M.2016. Temporal variations of dissolved lithium isotopic signatures in rivers reveal contrasted weathering regimes in low-relief Central African settings. Geophysical Research Letters 43: 4391-4399.[Link]


  1. Alsdorf, D., Beighley, E., Laraque, A., Lee, H., Tshimanga, R., O’Loughlin, F., Mahe, G., Dinga, B., Moukandi, G., Spencer, R.G.M.2016. Opportunities for hydrologic research in the Congo Basin. Reviews of Geophysics54: 1-32. [Link]


  1. Medeiros, P., Seidel, M., Niggemann, J., Spencer, R.G.M., Hernes, P.J., Yager, P.L., Miller, W.L., Dittmar, T., Hansell, D.A. 2016. A novel molecular approach for tracing terrigenous dissolved organic matter into the deep ocean. Global Biogeochemical Cycles 30: 689-700.[Link]


  1. McClelland, J.W., Holmes, R.M., Peterson, B.J., Raymond, P.A., Striegl, R.G., Zhulidov, A.V., Zimov, S.A., Zimov, N., Tank, S.E., Spencer, R.G.M., Staples, R., Gurtovaya, T.Y., Griffin, C.G. 2016. Particulate organic carbon and nitrogen export from major Arctic rivers. Global Biogeochemical Cycles30: 629-643. [Link]


  1. Cao, X., Aiken, G.R., Spencer, R.G.M., Butler, K., Mao, J., Schmidt-Rohr, K. 2016. Novel insights from NMR spectroscopy into seasonal changes in the composition of dissolved organic matter exported to the Bering Sea by the Yukon River. Geochimica et Cosmochimica Acta181: 72-88. [Link]


  1. Abbott, B.W. and 99 co-authors including Spencer, R.G.M.2016. Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire: an expert assessment. Environmental Research Letters11: 034014.[Link]


  1. Mann, P.J., Spencer, R.G.M., Hernes, P.J., Six, J., Aiken, G.R., Tank, S.E., McClelland, J.W., Butler, K.D., Dyda, R.Y., Holmes, R.M. 2016. Pan-arctic trends in terrestrial dissolved organic matter from optical measurements. Frontiers in Earth Science4: 25.[Link]


  1. Spencer-Jones, C.L., Wagner, T., Dinga, B.J., Schefuss, E., Mann, P.J., Poulsen, J.R., Spencer, R.G.M., Wabakamghanzi, J.N., Talbot, H.M. 2015. Bacteriohopanepolyols in tropical soils and sediments from the Congo River catchment area. Organic Geochemistry89: 1-13.[Link]


  1. Vonk, J.E., Tank, S.E., Mann, P.J., Spencer, R.G.M., Treat, C.C., Striegl, R.G., Abbott, B.W., Wickland, K.P. 2015. Biodegradability of dissolved organic carbon in permafrost soils and aquatic systems: a meta-analysis. Biogeosciences12: 6915-6930.[Link]


  1. Drake, T.W., Wickland, K.P., Spencer, R.G.M., McKnight, D.M., Striegl, R.G. 2015. Ancient low-molecular-weight organic acids in permafrost fuel rapid carbon dioxide production upon thaw. Proceedings of the National Academy of Sciences112: 13946-13951.[Link]


  1. Logvinova, C.L., Frey, K.E., Mann, P.J., Stubbins, A., Spencer, R.G.M.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-Biogeosciences11: 2326-2344. [Link]


  1. Fellman, J.B., Hood, E., Raymond, P.A., Stubbins, A., Spencer, R.G.M.2015. Spatial variation in the origin of dissolved organic carbon in snow on the Juneau Icefield, southeast Alaska. Environmental Science and Technology49: 11492-11499. [Link]


  1. Mann, P.J., Eglinton, T.I., McIntyre, C.P., Zimov, N., Davydova, A., Vonk, J.E., Holmes, R.M., Spencer, R.G.M.2015. Utilization of ancient permafrost carbon in headwaters of Arctic fluvial networks. Nature Communications6: doi:10.1038/ncomms8856. [Link]


  1. Spencer, R.G.M., Mann, P.J., Dittmar, T., Eglinton, T.I., McIntyre, C., Holmes, R.M., Zimov, N., Stubbins, A. 2015. Detecting the signature of permafrost thaw in Arctic rivers. Geophysical Research Letters42: doi:10.1002/2015GL063498. [Link]


  1. Stubbins, A., Spencer, R.G.M., Mann, P.J., Holmes, R.M., McClelland, J., Niggemann, J., Dittmar, T. 2015. Utilizing colored dissolved organic matter to derive dissolved black carbon export by Arctic rivers. Frontiers in Earth Science3: 63. [Link]


  1. Voss, B.M., Peucker-Ehrenbrink, B., Eglinton, T.I., Spencer, R.G.M., Bulygina, E., Galy, V., Lamborg, C.H., Ganguli, P.M., Montlucon, D.B., Marsh, S., Gillies, S.L., Fanslau, J., Epp, A., Luymes, R. 2015. Seasonal hydrology drives rapid shifts in the flux and composition of dissolved and particulate organic carbon and major and trace ions in the Fraser River, Canada. Biogeosciences12: 5597-5618. [Link]


  1. Hood, E., Battin, T.J., Fellman, J., O’Neel, S., Spencer, R.G.M.2015. Storage and release of organic carbon from glaciers and ice sheets. Nature Geoscience, 68, 91-96. [Link]


  1. McClelland, J.M., Tank, S.E., Spencer, R.G.M., Shiklomanov, A.I. 2015. Coordination and sustainability of river observing activities in the Arctic. Arctic,68, 1-10. [Link]


  1. Sun, L., Spencer, R.G.M., Hernes, P.J., Dyda, R.Y., Mopper, K. 2015. A comparison of a simplified cupric oxide oxidation HPLC method with the traditional GC-MS method for characterization of lignin phenolics in environmental samples. Limnology and Oceanography: Methods, 13, 1-8. [Link]


  1. Spencer, R.G.M., Guo, W.D., Raymond, P.A., 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, 142, 64-74. [Link]


  1. Fellman, J.B., Spencer, R.G.M., Raymond, P.A., Pettit, N.E., Skrzypek, G., Hernes, P.J., Grierson, P.F. 2014. Dissolved organic carbon biolability decreases along with its modernization in fluvial networks in an ancient landscape. Ecology,95, 2622-2632. [Link]


  1. Fellman, J.B., Hood, E., Spencer, R.G.M., Stubbins, A., Raymond, P.A. 2014. Watershed glacier coverage influences dissolved organic matter biogeochemistry in coastal watersheds of southeast Alaska. Ecosystems, 17, 1014-1025. [Link]


  1. Helms, J.R., Mao, J.D., Stubbins, A., Schmidt-Rohr, K., Spencer, R.G.M., Hernes, P.J., Mopper, K. 2014. Loss of optical and molecular indicators of terrigenous dissolved organic matter during long-term photobleaching. Aquatic Sciences, 76, 353-373. [Link]


  1. Talbot, H.M., Handley, L., Spencer-Jones, C.L., Dinga, B.J., Schefuss, E., Mann, P.J., Poulsen, J.R., Spencer, R.G.M., Wabakanghanzi, J.N., Wagner, T. 2014. Variability in aerobic methane oxidation over the past 1.2 Myrs recorded in microbial biomarker signatures from Congo fan sediments. Geochimica et Cosmochimica Acta, 133, 387-401. [Link]


  1. Spencer, R.G.M., Vermilyea, A., Fellman, J., Raymond, P.A., 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: doi: 10.1088/1748-9326/9/5/055005. (Special Issue: Focus on Cryospheric Ecosystems).[Link]


  1. Aiken, G.R., Spencer, R.G.M., Striegl, R.G., Schuster, P.F., Raymond, P.A. 2014. Influences of glacier melt and permafrost thaw on the age of dissolved organic carbon in the Yukon River basin. Global Biogeochemical Cycles, 28: doi: 10.1002/2013GB004764. [Link]


  1. Mann, P.J., Spencer, R.G.M., Dinga, B.J., Poulsen, J.R., Hernes, P.J., Fiske, G., Salter, M.E., Wang, Z.A., Hoering, K.A., Six, J., Holmes, R.M. 2014. The biogeochemistry of carbon across a gradient of streams and rivers within the Congo Basin. Journal of Geophysical Research-Biogeosciences, 199: doi: 10.1002/2013JG002442. [Link]


  1. Mann, P.J., Sobczak, W.V., LaRue, M.M., Bulygina, E., Davydova, A., Vonk, J.E., Schade, J., Davydov, S., Zimov, N., Holmes, R.M., Spencer, R.G.M.2014. Evidence for key enzymatic controls on metabolism of Arctic river organic matter. Global Change Biology, 20, 1089-1100. [Link]


  1. Jex, C.N., Pate, G.H., Blyth, A.J., Spencer, R.G.M., Hernes, P.J., Khan, S.J., Baker, A. 2014. Lignin biogeochemistry: from modern processes to Quaternary archives. Quaternary Science Reviews, 87, 46-59. [Link]


  1. Marin-Spiotta, E., Gruley, K.E., Crawford, J., Atkinson, E.E., Miesel, J.R., Greene, S., Cardona-Correa, C., Spencer, R.G.M.2014. Paradigm shifts in soil organic matter research affect interpretations of aquatic carbon cycling: transcending disciplinary and ecosystem boundaries. Biogeochemistry,117, 279-297. [Link]


  1. Pereira, R., Bovolo, C.I., Spencer, R.G.M., Hernes, P.J., Tipping, E., Vieth-Hillebrand, A., Pedentchouk, N., Chappell, N.A., Parkin, G., Wagner, T. 2014. Mobilization of optically invisible dissolved organic matter in response to rainstorm events in a tropical forest headwater river. Geophysical Research Letters, 41: doi: 10.1002/2013GL058658. [Link]


  1. Castello, L., Zhulidov, A.V., Gurtovaya, T.Y., Robarts, R.D., Holmes, R.M., Zhulidov, D.A., Lysenko, V.S., Spencer, R.G.M.2014. Low and declining mercury in Arctic Russian rivers. Environmental Science & Technology, 48, 747-752. [Link]


  1. Hernes, P.J., Spencer, R.G.M., Dyda, R.Y., Pellerin, B.A., Bachand, P.A.M., Bergamaschi, B.A. 2013. DOM composition in an agricultural watershed: Assessing patterns and variability in the context of spatial scales. Geochimica et Cosmochimica Acta, 121, 599-610.[Link]


  1. Vonk, J.E., Mann, P.J., Dowdy, K.L., Davydova, A., Davydov, S.P., Zimov, N., Spencer, R.G.M., Bulygina, E.B., Eglinton, T.I., Holmes, R.M. 2013. Dissolved organic carbon loss from Yedoma permafrost amplified by ice wedge thaw. Environmental Research Letters8: doi:10.1088/1748-9326/8/3/035023. (Special Issue: Focus on changing permafrost in a warming world: observation and implication). [Link]


  1. Spencer, R.G.M., Aiken, G.R., Dornblaser, M.M., Butler, K.D., Holmes, R.M., Fiske, G., Mann, P.J., Stubbins, A. 2013. Chromophoric dissolved organic matter export from U.S. rivers. Geophysical Research Letters40: doi:10.1002/grl.50357. [Link]


  1. Vonk, J.E., Mann, P.J., Davydov, S., Davydova, A., Spencer, R.G.M., Schade, J., Sobczak, W., Zimov, N., Zimov, S., Bulygina, E., Eglinton, T.I., Holmes, R.M. 2013. High biolability of ancient permafrost carbon upon thaw. Geophysical Research Letters40: doi:10.1002/grl.50348. [Link]


  1. Jaffe, R., Ding, Y., Niggemann, J., Vahatalo, A.V., Stubbins, A., Spencer, R.G.M., Campbell, J., Dittmar, T. 2013 Global charcoal mobilization from soils via dissolution and riverine transport to the oceans. Science340: 345-347. [Link]


  1. Huang, L., Zhuo, J., Guo, W., Spencer, R.G.M., Zhang, Z., Xu, J. 2013. Tracing organic matter removal in polluted coastal waters via floating bed phytoremediation. Marine Pollution Bulletin71: 74-82. [Link]


  1. Wang, Z.A., Dinga, B., Mann, P.J., Hoering, K., Spencer, R.G.M., Holmes, R.M. 2013.Inorganic carbon speciation and fluxes in the Congo River. Geophysical Research Letters 40:doi:10.1002/grl.50160. [Link]


  1. Wickland, K.P., Aiken, G.R., Butler, K.D., Dornblaser, M.M., Spencer, R.G.M., Striegl, R.G. 2012. Bioavailability of dissolved organic matter in the Yukon River Basin – Seasonal and spatial variability and influence of carbon quality and nutrients. Global Biogeochemical Cycles26: GB0E03, doi:10.1029/2012GB004342. [Link]


  1. Spencer, R.G.M., Butler, K.D., Aiken, G.R. 2012. Dissolved organic carbon and chromophoric dissolved organic matter properties of rivers in the U.S.A. Journal of Geophysical Research – Biogeosciences117: G03001, doi:10.1029/2011JG001928. [Link]


  1. Bouillon, S., Yambele, A., Spencer, R.G.M., Gillikin, D.P., Hernes, P.J., Six, J., Merckx, R., Borges, A.V. 2012. Organic matter sources, fluxes and greenhouse gas exchange in the Oubangui River (Congo River Basin). Biogeosciences9: 2045-2062. [Link]


  1. Stubbins, A., Hood, E., Raymond, P.A., Aiken, G.R., Sleighter, R.L., Hernes, P.J., Butman, D., Hatcher, P.G., Striegl, R.G., Schuster, P., Abdulla, H.A.N., Spencer, R.G.M.2012. Anthropogenic aerosols as a source of glacier derived dissolved organic matter. Nature Geoscience5: 198-201. [Link]


  1. Spencer, R.G.M., Hernes, P.J., Aufdenkampe, A.K., Baker, A., Gulliver, P., Stubbins, A., Aiken, G.R., Dyda, R.Y., Butler, K.D., Mwamba, V.L., Mangangu, A.M., Wabakanghanzi, J.N., Six, J. 2012. An initial investigation into the organic matter biogeochemistry of the Congo River. Geochimica et Cosmochimica Acta84: 614-627. [Link]


  1. Mann, P.J., Davidova, A., Zimov, N., Spencer, R.G.M., Davydov, S., Bulygina, E., Zimov, S., Holmes, R.M. 2012. Controls on the composition and lability of dissolved organic matter in Siberia’s Kolyma River Basin. Journal of Geophysical Research – Biogeosciences 117: G01028,doi:10.1029/2011JG001798.[Link]


  1. Krupa, M., Spencer, R.G.M., Tate, K.W., Six, J., van Kessel, C., Linquist, B.A. 2012. Controls on dissolved organic carbon composition and export from rice-dominated systems. Biogeochemistry108: 447-466. [Link]


  1. Fellman, J.B., Hood, E., Spencer, R.G.M.2010. Fluorescence spectroscopy opens new windows into dissolved organic matter dynamics in freshwater ecosystems: A review. Limnology and Oceanography55: 2452-2462. [Link]


  1. Murphy, K.R., Butler, K.D., Spencer, R.G.M., Stedmon, C.A., Boehme, J.R., Aiken, G.R. 2010. Measurement of dissolved organic matter fluorescence in aquatic environments: An interlaboratory comparison. Environmental, Science and Technology44: 9405-9412. [Link]


  1. Spencer, R.G.M.,Hernes, P.J., Ruf, R., Baker, A., Dyda, R.Y., Stubbins, A., Six, J. 2010. Temporal controls on dissolved organic matter and lignin biogeochemistry in a pristine tropical river, Democratic Republic of Congo. Journal of Geophysical Research – Biogeosciences115: G03013, doi: 10.1029/2009JG001180. [Link]


  1. Fellman, J.B., Spencer, R.G.M., Hernes, P.J., Edwards, R., D’Amore, D., Hood, E. 2010. The impact of glacier runoff on the biodegradability and chemical quality of terrigenous dissolved organic matter in near-shore marine ecosystems. Marine Chemistry 121: 112-122. [Link]


  1. Stubbins, A., Spencer, R.G.M., Chen, H., Hatcher, P.G., Mopper, K., Hernes, P.J., Mwamba, V.L., Mangangu, A.M., Wabakanghanzi, J.N., Six, J. 2010. Illuminated darkness: the molecular signatures of Congo River dissolved organic matter and its photochemical alteration as revealed by ultrahigh precision mass spectrometry. Limnology and Oceanography55: 1467-1477. [Link]


  1. Spencer, R.G.M.,Aiken, G.R., Dyda, R.Y., Butler, K.D., Bergamaschi, B.A. Hernes, P.J. 2010. Comparison of XAD with other dissolved lignin isolation techniques and a compilation of analytical improvements for the analysis of lignin in aquatic settings. Organic Geochemistry41: 445-453. [Link]


  1. Pellerin, B.A., Hernes, P.J., Saraceno, J.F., Spencer, R.G.M., Bergamaschi, B.A. 2010. Microbial degradation of plant leachate alters lignin phenols and trihalomethane precursors. Journal of Environmental Quality39: 946-954. [Link]


  1. Steenwerth, K.L., Pierce, D.L., Carlisle, E.A., Spencer, R.G.M., Smart, D.R. 2010. A vineyard agroecosystem: Disturbance and precipitation affect soil respiration under Mediterranean conditions. Soil Science Society of America Journal74: 231-239. [Link]


  1. Hood, E., Fellman, J.,Spencer, R.G.M.,Hernes, P.J., Edwards, R., D’Amore, D., Scott, D. 2009. Glaciers as a source of ancient, labile organic matter to the marine environment. Nature 462: 1044-1047, doi:10.1038/nature08580. [Link]


  1. Hernes, P.J., Bergamaschi, B.A., Eckard, R.S., Spencer, R.G.M.2009. Fluorescence-based proxies for lignin in freshwater dissolved organic matter. Journal of Geophysical Research–Biogeosciences114: G00F03, doi:10.1029/2009JG000938. [Link]


  1. Spencer, R.G.M., Stubbins, A., Hernes, P.J., Baker, A., Mopper, K., Aufdenkampe, A.K., Dyda, R.Y., Mwamba, V.L., Mangangu, A.M., Wabakanghanzi, J.N., Six, J. 2009. Photochemical degradation of dissolved organic matter and dissolved lignin phenols from the Congo River. Journal of Geophysical Research – Biogeosciences114: G03010, doi:10.1029/2009JG000968. [Link]


  1. Spencer, R.G.M., Aiken, G.R., Butler, K.D., Dornblaser, M.M., Striegl, R.G., Hernes, P.J. 2009. Utilizing chromophoric dissolved organic matter measurements to derive export and reactivity of dissolved organic carbon exported to the Arctic Ocean: A case study of the Yukon River, Alaska. Geophysical Research Letters36:L06401, doi:10.1029/ 2008GL036831. [Link]


  1. Pellerin, B.A., Downing, B.D., Kendall, C., Dahlgren, R.A., Kraus, T.E.C., Spencer, R.G.M., Bergamaschi, B.A. 2009. Assessing the sources and magnitude of diurnal nitrate variability in the San Joaquin River (California) with an in-situ optical nitrate sensor and dual nitrate isotopes. Freshwater Biology54: 376-387. [Link]


  1. Hernes, P.J., Spencer, R.G.M., Dyda, R.Y., Pellerin, B.A., Bachand, P.A.M., Bergamaschi, B.A. 2008. The role of hydrologic regimes on dissolved organic carbon composition in an agricultural watershed. Geochimica et Cosmochimica Acta72: 5266-5277. [Link]


  1. Spencer, R.G.M.,Aiken, G.R., Wickland, K.P., Striegl, R.G., Hernes, P.J. 2008. Seasonal and spatial variability in dissolved organic matter quantity and composition from the Yukon River Basin, Alaska. Global Biogeochemical Cycles22: GB4002, doi:10.1029/ 2008GB003231. [Link]


  1. Kraus, T.E.C., Bergamachi, B.A., Hernes, P.J., Spencer, R.G.M., Stepanauskas, R., Kendall, C., Losee, R., Fujii, R. 2008. Assessing the contribution of wetlands and subsided islands to dissolved organic matter and disinfection byproduct precursors in the Sacramento-San Joaquin River Delta: A geochemical approach. Organic Geochemistry39: 1302-1318. [Link]


  1. Ahad, J.M.E., Barth, J.A.C., Ganeshram, R., Spencer, R.G.M., Uher G. 2008. Controls on carbon cycling in two contrasting temperate zone estuaries: the Tyne and Tweed, U.K. Estuarine, Coastal and Shelf Science78: 685-693. [Link]


  1. Baker, A., Bolton, L., Newson, M., Spencer, R.G.M.2008. Spectrophotometric properties of surface water dissolved organic matter in an afforested upland peat catchment. Hydrological Processes 22: 2325-2336. [Link]


  1. Spencer, R.G.M., Pellerin, B.A., Bergamaschi, B.A., Downing, B.D., Kraus, T.E.C., Dahlgren, R.A., Smart D.R., Hernes, P.J. 2007. Diurnal variability in riverine dissolved organic matter composition determined by in-situoptical measurements (San Joaquin, California, U.S.A.). Hydrological Processes21: 3181-3189. [Link]


  1. Spencer, R.G.M., Ahad, J.M.E., Baker, A., Cowie, G.L., Ganeshram, R., Upstill-Goddard, R.C., Uher, G. 2007. The estuarine mixing behaviour of peatland derived dissolved organic carbon and its relationship to chromophoric dissolved organic matter in two North Sea estuaries (U.K.). Estuarine, Coastal and Shelf Science74: 131-144. [Link]


  1. Spencer, R.G.M., Bolton, L. Baker A. 2007. Freeze/thaw and pH effects on freshwater dissolved organic matter fluorescence and absorbance properties at a number of U.K. locations. Water Research41: 2941-2950. [Link]


  1. Spencer, R.G.M., Baker, A., Ahad, J.M.E., Cowie, G.L., Ganeshram, R., Upstill-Goddard, R.C., Uher, G. 2007. Discriminatory classification of natural and anthropogenic waters in two U.K. estuaries. Science of the Total Environment373: 305-323. [Link]


  1. Ahad, J.M.E., Ganeshram, R., Spencer, R.G.M., Uher, G., Upstill-Goddard, R.C., Cowie, G.L. 2006. Evaluating the sources and fate of anthropogenic dissolved inorganic nitrogen (DIN) in two contrasting North Sea estuaries. Science of the Total Environment372: 317-333. [Link]


  1. Ahad, J.M.E., Ganeshram, R., Spencer, R.G.M., Uher, G., Gulliver, P., Bryant, P.L. 2006. Evidence for anthropogenic 14C-enrichment in estuarine waters adjacent to the North Sea. Geophysical Research Letters33: L08608, doi:10.1029/2006GL025991. [Link]


  1. Baker, A., Spencer, R.G.M.2004. Characterization of dissolved organic matter from source to sea using fluorescence and absorbance spectroscopy. Science of the Total Environment333: 217-232. [Link]



Book Chapters:


  1. Raymond, P.A.,Spencer, R.G.M.2015. Riverine Dissolved Organic Matter. In: Biogeochemistry of Marine Dissolved Organic Matter. Hansell, D.A. Carlson, C.A. (Ed.) 2ndEdition. Elsevier. [Link]


  1. Spencer, R.G.M., Coble, P.G. 2014. Sample design for organic matter fluorescence analysis, In: Aquatic Organic Matter Fluorescence. Coble, P.G., Baker, A., Lead, J.R., Reynolds, D., Spencer, R.G.M.(Ed.), Cambridge University Press; Environmental Chemistry Book Series. [Link]


  1. Coble, P.G., Baker, A., Reynolds, D., Spencer, R.G.M.2014. An overview of organic matter fluorescence, In: Aquatic Organic Matter Fluorescence. Coble, P.G., Baker, A., Lead, J.R., Reynolds, D., Spencer, R.G.M.(Ed.), Cambridge University Press; Environmental Chemistry Book Series. [Link]


  1. Spencer, R.G.M., Stubbins, A., Gaillardet, J. 2014. Geochemistry of the Congo River, estuary and plume. In: Biogeochemical Dynamics at Large River-Coastal Interfaces: Linkages with Global Climate Change. Bianchi, T.S., Allison, M.A., Cai, W.J. (Ed.). Cambridge University Press. [Link]


  1. Hernes, P.J., Holmes, R.M., Raymond, P.A., Spencer, R.G.M., Tank, S.E. 2014. Fluxes, processing and fate of riverine organic matter in the Arctic Ocean. In: Biogeochemical Dynamics at Large River-Coastal Interfaces: Linkages with Global Climate Change. Bianchi, T.S., Allison, M.A., Cai, W.J. (Ed.). Cambridge University Press. [Link]


  1. Holmes, R.M., Coe, M.T., Fiske, G.J., Gurtovaya, T., McClelland, J.W., Shiklomanov, A.I., Spencer, R.G.M., Tank, S.E., Zhulidov, A.V. 2013. Climate change impacts on the hydrology and biogeochemistry of Arctic rivers. In: Climate Change and Inland Waters – Impacts and mitigation approaches for ecosystems and society. Goldman, C.R., Kumagai, M., Robarts, R.D. (Ed.). Wiley. [Link]





  1. Coble, P.G., Baker, A., Lead, J.R., Reynolds, D., Spencer, R.G.M.(Editors) 2014. Aquatic Organic Matter Fluorescence, Environmental Chemistry Book Series, Cambridge University Press. [Link]