Michael Lomas, PhD

Senior Research Scientist
NCMA and CAI Director
Marine Biogeochemist
Phone: +1 (207) 315-2567, ext. 311

For media inquiries, please contact sprofaizer@bigelow.org


Ph.D., Biological Oceanography (1999), University of Maryland at College Park

B.Sc. (Dual Degree), Marine Biology and Marine Chemistry (1994), Stony Brook at Southampton (formerly Long Island University, Southampton College)

Research Interests

Michael Lomas is a marine biogeochemist with a broad interest in the role that phytoplankton diversity and physiology plays in mediating the key processes of the biological carbon pump, and associated macronutrient cycles. While all phytoplankton fix inorganic carbon, they are plants afterall, different phytoplankton assemblages lead to different foodweb structures and ultimately different efficiencies of the biological carbon pump, as well as the flow of carbon and energy to higher trophic levels. Lomas' lab uses a combination of natural field observations, and field and laboratory manipulation experiments to study innate differences in phytoplankton physiology in the field and how different phytoplankton groups respond to climate change, in particular ocean acidification. Our group’s research falls in several interdisciplinary categories.

Flow Cytometry and Biogeochemistry. The genomics revolution has highlighted an amazing level of diversity in phytoplankton for both taxonomy and metabolic potential. We utilize flow cytometry as a tool to assist in generating physiological information for discrete phytoplankton populations from a range of natural environments. This includes cell properties such as cell carbon, nitrogen and phosphorus quotas and lipid content, as well as physiological rate processes such as ambient nutrient uptake rates. This information we share with our ecosystem modeling colleagues to improve the 'reality' of these models.

Phytoplankton Biogeography and Biogeochemical Cycles. A widely held belief in marine biogeochemistry is that the biological sequestration of carbon to the ocean interior, the biological carbon pump, is largely determined by phytoplankton cell size. In this paradigm biogeographic provinces dominated by small (pico- and nano-) phytoplankton do not contribute to the biological carbon pump. Over the past decade data has been accumulating on the quantitative importance of these pico- and nanophytoplankton to the ocean's biological carbon pump. Our group has conducted research in the Sargasso Sea, the subArctic North Pacific and Bering Sea, and in the near future the Chukchi Sea to study the relationships between phytoplankton communities growing the sunlit ocean and those sinking to the ocean interior.

Microbial Ecosystem Responses to Climate and Ocean Change. This research has focused in two areas; the loss of seasonal sea ice in the Bering Sea due to regional warming, and ocean acidification in the Sargasso Sea. Our research in the Bering Sea has focused on how a change in phytoplankton assemblage in warm and cold years impacts the flow of carbon up through the food chain all the way to harvestable fisheries. Our ocean acidification research in the Sargasso Sea has focused on the response of the whole microbial community, not just the calcifiers, and in particular how ocean acidification impacts the elemental stoichiometry of specific populations, the relative abundance of these populations and ultimately the biological carbon pump.

Lomas Publications

Please visit my ORCID page or my Google Scholar page for more information on my publications.


  • Garcia, C.A., Hagstrom, G.I., Larkin, A., Ustick, L., Levin, S.A., Lomas, M.W., Martiny, A.C. 2020. Linking biome shifts in microbial genome adaptation with ocean biogeochemistry. Proceedings of the Royal Society, B. 375: 20190254.
  • Lomas, M.W., Eisner, L.B., Jeanette Gann, Baer, S.B., Mordy, C.W., Stabeno, P.J. 2020. Time-series of direct primary production and phytoplankton biomass in the Southeastern Bering Sea: Responses to cold and warm stanzas. Marine Ecology Progress Series, accepted.
  • Martiny, A.C., Ustick, L., Garcia, C., Lomas, M.W. 2020. Genomic adaptation of marine phytoplankton populations regulates phosphate uptake. Limnology and Oceanography, 65:S340-S350.
  • D’Alelio, D., Rampone, S., Cusano, L.M., Morfino, V., Russo, L., Sanseverino, N., Cloern, J., Lomas, M.W. 2020. Machine learning unravels the link between global warming and reduced primary productivity in the oligotrophic ocean gyres. Scientific Reports.will be published on February 28, 2020.
  • Krause, J.W. and Lomas, M.W. 2020. Understanding diatoms’ past and future biogeochemical role in high latitudes seas. Geophysical Research Letters. 10.1029/2019GL085602.
  • Cotti-Rausch, B.E., Lomas, M.W., Lachenmyer, E.M., Baumann, E.G., Richardson, T.M. 2020. Size-fractionated biomass and primary productivity of Sargasso Sea phytoplankton. Deep Sea Research I. DOI: 10.1016/j.dsr.2015.11.008.


  • Martiny, A.C., Lomas, M.W., Fu, W., Boyd, P.W., Chen, Y.L., Cutter, G.A., Ellwood, M.J., Furuya, K., Hashihama, F., Kanda, J., Karl, D.M., Kodama, T., Li, Q.P., Ma, J., Moutin, T., Woodward, E.M.S., Moore, J.K., 2019. Biogeochemical controls of surface ocean phosphate. Sciences Advances. (accepted).
  • Lomas, MW, Baer, SE, Krause, JW, Acton, S. 2019. Pumped up by the cold: Elemental Quotas and Stoichiometry of Polar Diatoms. Frontiers in Marine Science. 6:286, doi: 10.3389/fmars.2019.00286.
  • Twining, B.S., Rauschenberg, S., Baer, S.E., Lomas, M.W., Martiny, A.C. 2019. A nutrient limitation mosaic in the eastern tropical Indian Ocean. Deep Sea Research II – special issue on the Indian Ocean. (accepted)
  • Larkin, AA, Garcia, CA, Ingoglia, KA, Garcia, N, Baer, SE, Twining, BS, Lomas, MW, Martiny, AC. 2019. Subtle biogeochemical regimes in the Indian Ocean revealed by spatial and diel frequency of Prochlorococcus haplotypes. Limnology and Oceanography, in revision.
  • Nettersheim, B.J., Brocks, J.J., Schwelm, A., Hope, J.M., Not, F., Lomas, M.W., Schmidt, C., Schiebel, R., Nowack, E., deDecker, P., Pawlowski, J., Bowser, S., Zonneveld, K., Kucera, Hallmann, C. 2019. Putative sponge biomarkers in unicellular Rhizaria question an early rise of animals. Nature Ecology and Evolution. doi: 10.1038/s41559-019-0806-5


  • Kent, A.G., Baer, S.E., Mouginot, C., Huang, J., Larkin, A.A., Lomas, M.W., Martiny, A.C. 2018. Parallel phylogeography of Prochlorococcus and Synechococcus. ISME J. https://doi.org/10.1038/s41396-018-0287-6
  • Garcia, C., Baer, S.E., Garcia, N., Rauchenberg, S., Twining, B.S., Lomas, M.W., Martiny, A.C. 2018. Nutrient supply controls particulate elemental concentrations and ratios in the Eastern Indian Ocean. Nature Communications, 9:4868.
  • Baer, S.E., Rauschenberg, S., Garcia, C., Martiny, A.C., Twining, B.S., Lomas, M.W. 2018. Biogeochemistry of the oligotrophic eastern Indian Ocean. Deep Sea Research II – special issue on the Indian Ocean., 161:81-91 (10.1016/j.dsr2.2018.11.008).
  • Whitney, L.P. Lomas, M.W. 2018. The bioavailability of phosphonate to eukaryotic phytoplankton. Limnology and Oceanography: Letters. 4: 18-24.
  • Kovac, Z., Platt, T., Sathyandranath, S., Lomas, M.W. 2018. Extraction of photosynthesis parameters from time series measurements of in situ production: Bermuda Atlantic Time-series Study. Journal of Remote Sensing, 10:915.
  • Wan, X.S., Sheng, H-X., Dai, M., Zhang, Y., Shi, D., Trull, T.W., Zhu, Y., Lomas, M.W., Kao, S-J. 2018. Ambient nitrate switches the ammonium consumption pathway in the euphotic ocean. Nature Communications. 9:915.
  • DeMartini, F., Neuer, S., Hammill, D., Rubidart, J., Lomas, M.W. 2018. Clade and strain specific contributions of Synechococcus and Prochlorococcus to carbon export in the Sargasso Sea. Limnology and Oceanography. 63(S1): doi.org/10.1002/lno.10765.


  • Neuer, S., H. Benway, N. Bates, C. Carlson, M. Church, M. DeGrandpre, J. Dunne, R. Letelier, M. Lomas, L. Lorenzoni, F. Muller-Karger, M. J. Perry, P. Quay (2017). Monitoring ocean change in the 21st Century. Eos 98, doi:10.1029/2017EO080045.
  • Garcia, N.S., Brown, J., Riggens, T., Sexton, J., Lomas, M.W., Martiny, A.C. 2018. High variability in cellular stoichiometry of carbon, nitrogen and phosphorus within classes of marine eukaryotic phytoplankton. Frontiers in Microbiology, section Aquatic Microbiology. 9:doi: 10.3389/fmicb.2018.00543.
  • McCluskey, K., Barker, K.B., Barton, H., Boundy-Mills, K., Brown, D.R., Coddington, J., Cook, K., Desmeth, P., Dias, M., Duke, C., Geiser, D., Glaeser, J.A., Greene, S., Kang, S., Lomas, M.W., Melcher, U., Miller, S., Nobles, D., Reichman, J., Schindel, D., da Silva, M., Wertz, J., Whitworth, and Smith, D. 2017. The US Culture Collection Network responding to the requirements of the Nagoya Protocol on Access and Benefit Sharing. mBio. doi: 10.1128/mBio.00982-17.
  • Mordy, C.W., Devol, A.W., Eisner, L.B., Kachel, N., Ladd, C., Lomas, M.W., Proctor, P., Sambrotto, R.N., Shull, D.H., Stabeno, P.J., Wisegarver, E.. 2017. Nutrient and phytoplankton dynamics on the inner shelf of the eastern Bering Sea. Journal of Geophysical Research - Oceans. 122(3): doi.org/10.1002/2016JC012071.
  • Baer, S.E., Lomas, M.W., Whitney, L.P., Terpis, K.X., Martiny, A.C. 2017. Spatial variability of taxon-specific stoichiometry in the Western N. Atlantic: environmental controls and biogeochemical implications. Environmental Microbiology. 19(4): 1568-1583.


  • Talarmin, A., Lomas, M.W., Bozec, Y., Savoye, N., Frigstad, H., Karl, D.M., Martiny, A.C. 2016. Temporal variability of particulate organic carbon, nitrogen and phosphorus ratios in the ocean. Global Biogeochemical Cycles, 30:1699-1711.
  • Tin, T.C., Cole, A.J., Fotedar, R.K., O’Leary, M.J., Lomas, M.W., Roy, S. 2016. Seasonal changes in water quality and Sargassum biomass in a southwest Australia. Marine Ecology Progress Series, 551:63-79.
  • Whitney, L.P., Lomas, M.W. 2016. Phosphorus stress in the picoeukaryote Micromonas pusilla: a whole-genome expression analysis. PLoS ONE, DOI:10.1371/journal.pone.0155158.
  • Banas, N.S., Zhang, J., Campbell, R.G., Lomas, M.W., Sambrotto, R.N., Sherr, E.B., Sherr, B.F., Ashjian, C.J., Stoecker, D., Lessard, E.J. 2016. Past and future variability in the spring plankton dynamics in the eastern Bering Sea, 1971 – 2050. Journal of Geophysical Research-Oceans.121:1476-1501.
  • Campbell, R.G., Ashjian, C.J., Sherr, E.B., Sherr, B.F., Lomas, M.W., Ross, C., Alatalo, P., Gelfman, C., van Keuren, D. 2016. Mesozooplankton grazing during spring sea-ice conditions in the eastern Bering Sea. In review. Deep-Sea Research II, 134:157-172.
  • Liu, C.L., Zhai, L., Zeeman, S., Eisner, L., Mordy, C.W., Lomas, M.W. 2016. Comparison of seasonal and geographic variations in modeled primary production and phytoplankton losses from the mixed layer between warm years and cold years on the eastern Bering Sea shelf. Deep-Sea Research II, 134:141-156.
  • Cotti-Rausch, B.E., Lomas, M.W., Lachenmyer, E.M., Goldman, E.A., Bell, D.W., Goldberg, S.R., Richardson, T.M. 2016.Mesoscale and submesoscale variability in phytoplankton community composition in the Sargasso Sea. Deep-Sea Research I, 110:106-122.
  • Montes, E., Muller-Karger, F., Lomas, M.W., Cianca, A., Lorenzoni, L., Habtes, S. 2016. Decadal variability in the oxygen inventory of North Atlantic Subtropical Underwater captured by sustained, long-term oceanographic time-series observations. Global Biogeochemical Cycles, 30, 460–478, doi:10.1002/2015GB005183.
  • Sigler, M.F., Napp, J.M., Stabeno, P.J., Heintz, R.A., Lomas, M.W., Hunt, G.L. Jr. 2016. Variations in annual production of copepods, euphausiids, and juvenile walleye Pollock in the southeastern Bering Sea. Deep-Sea Research II. 134:223-234.


  • Estapa, M.L., Siegel, D.V., Buesseler, K.O., Stanley, R.H.R., Lomas, M.W., Nelson, N.M. 2015. Decoupling of net community production and export production at submesoscale fronts in the Sargasso Sea. Global Biogeochemical Cycles, 2014GB004913. http://doi.org/10.1002/2014GB004913
  • Mackinson, B.L., Moran, S.B., Lomas. M.W., Stewart, G.M., Kelly, R.P. 2015. Estimates of micro-, nano-, and picoplankton contributions to particle export in the Northeast Pacific. Biogeosciences.12: 3429-3446.
  • Singh, A., Baer, S., Riebesell, U., Martiny, A.C., Lomas, M.W. 2015. C:N:P stoichiometry in the dissolved and particulate matter at the Bermuda Atlantic Time-series Study (BATS) site. Biogeosciences, 12: 6389-6403.
  • Tin, H.C., Lomas, M.W., Ishizaki, J. 2015. Satellite-derived estimates of primary production during the Sargasso Sea winter/spring bloom: integration of in-situ time-series data and ocean color remote sensing observations. Regional Studies in Marine Science, 3: 131-143.
  • Fawcett, S.E. Ward, B.B., Lomas, M.W., Sigman, D.M.. 2015. Vertical decoupling of nitrate assimilation and nitrification in the Sargasso Sea. Deep Sea Research I. 103: 64-72.
  • Batmalle, C.S., Bell, D.W., Lomas, D.A., Lomas, M.W., Martiny, A.C. 2015. Influence of growth rate on the physiological response of marine Synechococcus to phosphate stress. Frontiers in Aquatic Microbiology, 6:85.


  • Baumann, M.S., Moran, S.B., Lomas, M.W., Kelly, R.P., Bell, D.W., Krause, J.W. 2014. Diatom control of the autotrophic community and particle export in the eastern Bering Sea during the recent cold years (2008-2010). Journal of Marine Research, 72:405-444.
  • Lomas, M.W., Bonechela, Levin, S., J., Martiny, A.C. 2014. Impact of ocean phytoplankton diversity on ocean phosphate uptake rates. Proceedings of the National Academy of Sciences 10.1073/pnas.1420760111.
  • Teng, Y-C., Primeau, F.W., Moore, J.K., Lomas, M.W., Martiny, A.C. 2014. Global patterns of carbon to phosphorus ratios in exported marine organic matter inferred from a biogeochemical inverse model. Nature Geoscience 7: 895-898.
  • Wallhead, P.J., Garcon, V.C., Casey, J.R., Lomas, M.W. ¬¬Long-term variability of phytoplankton carbon biomass in the Sargasso Sea. 2014. 2014. Global Biogeochemical Cycles 28: 825-841.
  • Muller-Karger, F.E., Kavanaugh, M.T., Montes, E., Balch, W.M., Breitbart, M., Chavez, F.P., Doney, S.C., Johns, E.M., Letelier, R.M., Lomas, M.W., Sosik, H.M., and White, A.E. 2014. A framework for a marine biodiversity observing network within changing continental shelf seascapes. Oceanography 27(2):18–23.
  • Martin, P., Dyhrman, S.T., Lomas, M.W., Poulton, N., Van Mooy, B.A.S. 2014. Marine microbial response to low phosphorus results in accumulation and enhanced cycling of polyphosphate in the Sargasso Sea. Proceedings of the National Academy of Sciences.111:8089-8094.
  • Choi, H.Y., Stewart, G.M., Lomas, M.W., Kelly, R.P., Moran, S.B. 2014. Linking the distribution of 210Po and 210Pb with plankton community along Line P, Northeast Subarctic Pacific. Journal of Environmental Radioactivity,138:390-401.
  • Cross, J.N., Mathis, J.T., Lomas, M.W., Moran, S.B., Baumann, M.S., Shull, D., Mordy, C.W., Bates, N.R., Gradinger, R., Stabeno, P.J. 2014. Integrated assessment of the carbon budget in the Southeastern Bering Sea: from the atmosphere to the sediments. Deep Sea Research II, 109:112-124.
  • Treibergs, L.A., Fawcett, S.E., Lomas, M.W., Sigman, D.M. 2014. Nitrogen isotopic response of prokaryotic and eukaryotic phytoplankton to nitrate availability in Sargasso Sea surface waters. Limnology and Oceanography. 59:972-985.
  • Fawcett, S.E., Lomas, M.W., Ward, B.B., Sigman, D.M. 2014. The effect of summer-to-winter mixed layer deepening on eukaryotic new production in the Sargasso Sea. Global Biogeochemical cycles. 28:86-102.
  • Zimmerman, A.E., Martiny, A.C., Lomas, M.W., Allison, S.D. 2014. Variations in phosphorus pools, RNA allocation, and C:P stoichiometry along a nutrient supply gradient in the North Atlantic subtropical gyre. Biogeosciences, 11:1599-1611.
  • Batmalle, C.S., Chiang, H-I, Zhang, K., Lomas, M.W., Martiny, A.C. 2014. Development and bias assessment of a method for targeted metagenomic sequencing of marine Cyanobacteria. Applied and Environmental Microbiology, 80: 1116-1125.
  • toecker, D., Weigel, A.C., Stockwell, D.A., Lomas, M.W. 2014. Microzooplankton: abundance, biomass and contribution to chlorophyll a in the eastern Bering Sea in summer. 3rd Bering Sea Special Issue in Deep Sea Research II, 109:134-144.


  • Martiny, A.C., Vrugt, J.A., Primeau, F.W., Lomas, M.W. 2013. Regional variation in the particulate organic carbon to nitrogen ratio in the surface ocean. Global Biogeochemical Cycles, 27: 723-731.
  • Baumann, M.S., Moran, S.B., Lomas, M.W., Kelly, R.P., Bell, D.W. 2013. Seasonal decoupling of particulate organic carbon export and net primary production in relation to sea-ice extent at the shelf break of the eastern Bering Sea: implications for off-shelf export of carbon. Journal of Geophysical Research: Oceans, 118: 5504-5522.
  • Singh, A., Lomas, M.W., and Bates, N.R. 2013. Revisiting N2 fixation in the North Atlantic Ocean: Importance of Redfield Ratio and climate variability. Deep Sea Research II, 93:148-158.
  • McLaughlin, K., Sohm, J.A., Cutter, G.A., Lomas, M.W., Paytan, A. 2013. Phosphate cycling in the Sargasso Sea: Investigation using the oxygen isotopic composition of phosphate, enzyme labeled fluorescence, and turnover times. Global Biogeochemical Cycles, 27: 1-13.
  • Peloquin, J., Swan, C., Gruber, N., Vogt, M., Claustre, H., Ras, J., Uitz, J., Barlow, R., Behrenfeld, M., Bidigare, R., Dierssen, H., Ditullio, G., Fernandez, E., Gallienne, C., Gibb, S., Goericke, R., Harding, L., Head, E., Holligan, P., Hooker, S., Karl, D., Landry, M., Letelier, R., Llewellyn, C. A., Lomas, M., Lucas, M., Mannino, A., Marty, J-C., Mitchell, B. G., Muller-Karger, F., Nelson, N., O'Brien, C., Prezelin, B., Repeta, D., Smith, Jr., W. O., Smythe-Wright, D., Stumpf, R., Subramaniam, A., Suzuki, K., Trees, C., Vernet, M., Wasmund, N., and Wright. S. 2013. The MAREDAT global database of high performance liquid chromatography marine pigment measurements. Earth System Science Database. 5; 109-123.
  • Flombaum, P., Gallegos, J.L., Gordillo, R.A., Rincón, J., Zabala, L.L., Jiao, N., Lomas, M.W., Veneziano, D., Vrugt, J.A., Martiny, A.C. 2013. Global abundance and distribution of the marine cyanobacteria Prochlorococcus and Synechococcus. Proceedings of National Academy of Sciences. 110: 9824-9829.
  • Martiny, A.C., Pham, C., Primeau, F., Vrugt, J., Levin, S., Lomas, M.W. 2013. Strong latitudinal patterns in elemental composition of marine plankton and organic matter. Nature Geoscience. 6:279-283.
  • Lomas, M.W., Bates, N.R., Johnson, R.J., Knap, A.H., Steinberg, D.K., Carlson, C.A. 2013. Two decades and counting: overview of 24-years of sustained open ocean biogeochemical measurements. Deep Sea Research II, 93: 16-32.
  • Church, M.J., Lomas, M.W., and Muller-Karker, F.E. 2013. Sea Change: Charting the course for biogeochemical ocean time series research in a new millennium. Deep Sea Research II, 93: 2-15.
  • Baumann, M.S., Moran, S.B., Kelly, R.P., Lomas, M.W., and Shull, D.H. 2013. 234Th balance and implications for seasonal particle retention in the eastern Bering Sea. Deep Sea Research II. 94, 7-21.
  • Casey, J.R., Aucan, J.P., Goldberg, S.R., Lomas, M.W. 2013. Changes in partitioning of carbon amongst photosynthetic pico- and nano-plankton groups in the Sargasso Sea in response to changes in the North Atlantic Oscillation. Deep Sea Research II. 93: 58-70.
  • Amacher, J., Neuer, S., Baysinger, C., Lomas, M.W. 2013. DNA-based molecular fingerprinting of the contribution of eukaryotic protists and cyanobacteria to particle flux at the Bermuda Atlantic Time-series Study. Deep Sea Research II, 93: 71-83.
  • Owens, S.A., Buesseler, K.O., Lamborg, C.H., Valdes, J., Lomas, M.W., Johnson, R.J., Steinberg, D.K., Siegel, D.A. 2013. A new times series of particle export from neutrally buoyant sediment traps at the Bermuda Atlantic Time-series Study site. Deep Sea Research I. 72:31-47.


  • Mackey, K.R.M., Buck, K.N., Casey, J.R., Cid, A., Lomas, M.W., Sohrin, Y., Paytan, A. 2012. Phytoplankton responses to atmospheric metal deposition in the coastal and open-ocean Sargasso Sea. Frontiers in Aquatic Microbiology, doi:10.3389/fmicb.2012.00359.
  • Roberts, N.L., Piotrowski, A.M., Eglinton, E.I., Lomas, M.W. 2012. Rare earth element association with foraminifera. Geochimica et Cosmochimica Acta, 94: 57-71.
  • Buitenhuis, E.T., Li, W.K.W., Vaulot, D., Lomas, M.W., Landry, M., Partensky, F., Karl, D.M., Ulloa, O., Campbell, L., Jacquet,S., Lantoine, F., Chavez, F., Macias, D., Gosselin, M., McManus, G.B.. 2012. Picophytoplankton biomass distribution in the global ocean. Earth System Science Data, 4 : 37-46.
  • Buitenhuis, E.T., Li, W.K.W., Lomas, M.W., Karl, D.M., Landry, M., Jacquet, S. 2012. Picoheterotroph (bacteria and Archaea) distribution in the global ocean. Earth System Science Data,4 : 101-106.
  • Mackey, K.R.M., Roberts, K., Lomas, M.W., Saito, M., Post, A., Paytan, A. 2012. Variable solubility and ecological impact of atmospheric phosphorus deposition. Environmental Science and Technology, 46:10436-10446.
  • Lomas, M.W., Hopkinson, B.M., Losh, J., Ryan, D.E., Shi, D., Xu, Y., Morel, F.M.M. 2012. Effect of ocean acidification on cyanobacteria in the subtropical North Atlantic. Aquatic Microbial Ecology, 66: 211-222.
  • Salihoglu, B. Neuer, S., Painting, S., Murtugudde, R., Hofmann, E., Steele, J., Hood, R., Legendre, L., Lomas, M.W., Wiggert, G., Ito, S., Lachkar, Z., Hunt, G., Drinkwater, K., Sabine, C. 2012. Bridging ecosystem research and biogeochemistry: Lessons and recommendations from comparative studies. Journal of Marine Systems, http://dx.doi.org/10.1016/j.jmarsys.2012.07.005.
  • Steinberg, D.K., Lomas, M.W., Cope, J.S. 2012. Long-term change in mesozooplankton biomass in the Sargasso Sea: Linkage to climate and implications for food web dynamics and biogeochemical cycling. Global Biogeochemical Cycles, GB1004, doi:10.1029/2010GB004026.
  • Moran, S.B., Lomas, M.W., Kelly, R.P., Gradinger, R., Iken, K., Mathis, J.T. 2012. Sea-ice control of lower trophic carbon partitioning in the eastern Bering Sea. Deep-Sea Research II, 65-70, 84-97. (http://dx.doi.org/10.1016/j.dsr2.2012.02.011).
  • Lomas, M.W., Moran, S.B., Casey, J.R., Bell, D.W., Tiahlo, M., Whitefield, J., Kelly, R.P., Mathis, J.T., Cokelet, E.D. 2012. Spatial and seasonal variability of primary production on the Eastern Bering Sea shelf. Deep-Sea Research II, 65-70, 126-140. (http://dx.doi.org/10.1016/j.dsr2.2012.02.010).


  • Fawcett, S.E., Lomas, M.W., Casey, J.R., Ward, B.B., Sigman, D.M. 2011. Eukaryotes dominate new production in the Sargasso Sea. Nature Geosciences, 4: 717-722.
  • Parsons, R.J., Breitbart, M., Lomas, M.W., and Carlson, C.A.. 2011. Open ocean time-series reveals recurring seasonal patterns of virioplankton dynamics. The ISME Journal. doi:10.1038/ismej.2011.101
  • Popendorf, K., Van Mooy, B.J., Lomas, M.W. 2011. Microbial Sources of Intact Polar Membrane Lipids in the North Atlantic Ocean. Organic Geochemistry, doi:10.1016/j.orggeochem.2011.05.003.
  • Sigler, M.F., Harvey, H.R., Ashjian, C.J., Lomas, M.W., Napp, J.M., Stabeno, P.J., Van Pelt, T.I. 2010. How does climate change affect the Bering Sea ecosystem. EOS 91:457-458.
  • Lomas, M.W. Bronk, D.A., and Van den Engh, G. 2011. Flow cytometry and advances in marine biogeochemistry. Annual Review in Marine Science, 3:537-566.
  • Lomas, M.W., and Moran, S.B. 2011. Evidence for aggregation and export of cyanobacteria and nano-eukaryotes from the Sargasso Sea euphotic zone. Biogeosciences 8, 203-216.
  • Stewart, G., Moran, S.B., Lomas, M.W., Kelly, R.O. 2011. Direct comparison of 210Po, 234Th and POC particle-size distributions and export fluxes at the Bermuda Atlantic Time-series Study (BATS) site. Journal of Environmental Radioactivity, 102: 479-489.
  • Michelou, V.K., Lomas, M.W., Kirchman, D.L. 2011. Phosphate and ATP uptake by cyanobacteria and heterotrophic bacteria in the Sargasso Sea. Limnology and Oceanography, 56:323-332.


  • Orchard, E.D., Benitez-Nelson, C.R., Pellechia, P.J., Lomas, M.W., Dyhrman, S.T. 2010. Polyphosphate in Trichodesmium from the low phosphorus Sargasso Sea. Limnology & Oceanography, 55(5), 2161-2169.
  • Bradley, P. B., M. W. Lomas, and D. A. Bronk. 2010. Phytoplankton and bacterial nitrogen use in Chesapeake Bay measured using a flow cytometric sorting approach. Estuaries and Coasts, DOI 10.1007/s12237-009-9252-y.
  • Mathis, J.T., Cross, J.N., Bates, N.R., Moran, S.B., Lomas, M.W., Mordy, C.W., Stabeno, P.J. 2010. Seasonal Distribution of Dissolved Inorganic Carbon and Net Community Production on the Bering Sea Shelf. Biogeosciences 7: 1769-1787.
  • Longnecker, K., Lomas, M.W., and Van Mooy, B.A.S. 2010. Characterizing the abundance and diversity of heterotrophic bacterial cells assimilating phosphate in the sub-tropical North Atlantic Ocean. Environmental Microbiology, doi:10.1111/j.1462-2920.2010.02247.x.
  • Orchard, E.D., Ammerman, J.W., Lomas, M.W., Dyhrman, S.T. 2010. Dissolved inorganic and organic phosphorus uptake in Trichodesmium and the microbial community: The importance of phosphorus ester in the Sargasso Sea. Limnology and Oceanography, 55:1390-1399.
  • Saba, V., Friedrichs, M.A.M., Carr, M-E., Antoine, D., Armstrong, R., Asanuma, I., umont,O., Bates, N.R., Behrenfeld, M., Bennington, V., Bopp, L., Bruggemann, J., Buitenhuis, E.T., Ciotti, A., Doney, S.C., Dowell, M., Dunne, J., Dutkiewicz, S., Gregg, W., Hoepffner, N., Hyde, K.J.W., Ishizaka, I., Kameda, J., Lima, I., Lomas, M.W., Marra, J., McKinley, G.A., Melin, F., Moore, J.K., Morel, A., O’Reilly, J., Salihoglu, B., Scardi, M., Smyth, T.J., Tang, S., Tjiputra, J., Uitz, J., Vichi, M., Waters, K., Westbury, T.K., Yool, A. 2010. The challenges of modeling depth-integrated marine primary productivity over multiple decades: A case study at BATS and HOT. Global Biogeochemical Cycles, doi:10.1029/2009GB003655.
  • Helmke, P., Lomas, M.W., Conte, M., Köster, J., and Neuer, S. 2010. What determines the variability of organic carbon export and flux attenuation in the subtropical North Atlantic grye? Deep Sea Research I, 57: 213-227.
  • Krause, J.W., Nelson, D.M., Lomas, M.W. 2010. Production, dissolution and potential export of biogenic silica in a Sargasso Sea mode-water eddy. Limnology and Oceanography, 55: 569-579.
  • Stewart, G., Moran, S.B., Lomas, M.W. 2010. Seasonal POC fluxes at BATS estimated from 210Po deficits. Deep Sea Research I, 57:113-124.
  • Lomas, M.W., Burke, A., Lomas, D.A., Bell, D.W., Shen, C., Ammerman, J.W., Dyhrman, S.T. 2010. Sargasso Sea phosphorus biogeochemistry: An important role for dissolved organic phosphorus (DOP). Biogeosciences 7: 695-710.
  • Lomas, M.W., Steinberg, D.K., Dickey, T., Carlson, C.A., Nelson, N.B., Condon, R.H. and Bates, N.R. 2010. Increased carbon export is countered by increased mesopelagic attenuation in the Sargasso Sea. Biogeosciences 7: 57-70.


  • Brew, H.S., Moran, S.B., Lomas, M.W., Burd, A.B., and Kelly, R.P. 2009. Pico-plankton control of particulate organic carbon and thorium size distributions in the Sargasso Sea: Implications for carbon export. Journal of Marine Research, 67, 845-868.
  • Casey, J., Lomas, M.W., Michelou, V., Orchard, E.D., Dyhrman, S.T., Ammerman, J.W., and Sylvan, J. 2009. Phytoplankton taxon-specific orthophosphate (Pi) and ATP uptake in the northwestern Atlantic subtropical gyre. Aquatic Microbial Ecology, 58:31-44.
  • Lomas, M.W., Roberts, N., Lipschultz, F., Krause, J.W., Nelson, D.M., and Bates, N.R. 2009. Biogeochemical responses to late-winter storms in the Sargasso Sea. IV. Rapid succession of major phytoplankton groups. Deep Sea Research I, 56: 892-909.
  • Krause, J.W., Lomas, M.W., and Nelson, D.M. 2009. Biogenic silica in the Sargasso Sea: Hypothesized controls on temporal variability based on a 15-year record at the BATS site. Global Biogeochemical Cycles, 23: GB3004, doi:10.1029/2008GB003236.
  • Krause, J.W., Nelson, D.M., and Lomas, M.W. 2009. Biogeochemical responses to late-winter storms in the Sargasso Sea. 2009. II. Increased rates of biogenic silica production and export. Deep Sea Research I, 56: 861-875.
  • Maiti, K., Benitez-Nelson, C.R., Lomas, M.W., and Krause, J. W. 2009. Biogeochemical responses to late-winter storms in the Sargasso Sea. IV. Comparison of Export Production by 234Th and Sediment Traps. Deep Sea Research I, 56: 875-892.
  • Van Mooy, B.A.S., Fredricks, H.F., Pedler, B.F., Dyhrman, S.T., Karl, D.M., Koblížek, M., Lomas, M.W., Moore, L.R., Moutin, T., Rappé, M.S., and Webb, E.A. 2009. Phytoplankton in the oligotrophic ocean use non-phosphorus lipids in response to phosphorus scarcity. Nature Geosciences, doi:10.1038/nature07659.
  • Lomas, M.W., Lipschultz, F., Nelson, D.M., and Bates, N.R. 2009. Biogeochemical responses to late-winter storms in the Sargasso Sea. I. Pulses of new and primary production. Deep Sea Research I, 56: 843-861.
  • Salihoglu, B., Garcon, V., Oschlies, A., and Lomas, M.W. 2008. Influence of nutrient utilization and remineralization stoichiometry on phytoplankton species and carbon export: a modeling study at BATS Deep Sea Research I. 55:73-107 (published online in 2007).
  • Casey, J., Lomas, M.W., Mandecki, J., and Walker, D.E. 2007. Prochlorococcus contributes to new production in the Sargasso Sea deep chlorophyll maximum. Geophysical Research Letters, 34, L10604, doi:10.1029/2006GL028725.
  • Lomas, M.W. and Lipschultz, F. 2006. Forming the Primary Nitrite Maximum: Phytoplankton or Nitrifiers? Limnology and Oceanography: Reviews 51, 2453-2467.
  • Lomas M. W., and Bates, N. R. 2004. Interannual variability in primary production partitioning in the Sargasso Sea. Deep Sea Research I, 51:1619-1636.
  • Lomas, M.W., Swain, A. Shelton, R, and Ammerman, J.W. 2004. Taxonomic diversity of phosphorus limitation in the Sargasso Sea. Limnology and Oceanography, 49:2303-2310.
  • Lomas, M.W., Kana, T.M., MacIntyre, H.L., and Cornwell, J.C. 2004. Interannual variability of Aureococcus anophagefferens in Quantuck Bay Long Island: Natural test of the DON hypothesis. Harmful Algae, 3:389-402.
  • Kana, T.M., Lomas, M.W., MacIntyre, H.L., Cornwell, J.C., and Gobler, C. 2004. Stimulation of the brown tide organism, Aureococcus anophagefferens, by selective nutrient additions to in situ mesocosms. Harmful Algae, 3:377-388.
  • MacIntyre, H.L., Lomas, M.W., Cornwell, J.C., Suggett, D.J., Gobler, C.J., Koch, E.W., and Kana, T.M. 2004. Mediation of benthic pelagic coupling by microphytopbenthos: An energy- and material-based model for initiation of blooms of Aureococcus anophagefferens. Harmful Algae, 3:403-437.
  • Lomas, M. W., and Gobler, C. J. 2004. Aureococcus anophagefferens research: 20 years and counting. Harmful Algae, 3:273-277.
  • Venter, J.C., Remington, K., Halpern, A.L., Levy, S., Heidelberg, J., Eisen, J.A., Paulsen, I., Nelson, K.E., Fouts, D.E., Nelson, W., Rusch, D, Knap, Lomas, M.W., A.H., Nealson, K., White, O., Peterson, J., Smith, H.O., Hoffman, J., Parsons, R., Pfannkoch, C., and Rogers, Y. 2004. Environmental Whole Genome Shotgun Sequencing: The Sargasso Sea. Science, 304:66-74.
  • Lomas, M.W. 2004. Induction and suppression of nitrate reductase and urease activity in the marine diatom, Thalassiosira weissflogii. Marine Biology, 144:37-44.
  • Fan, C., Glibert, P.M., Alexander, J., and Lomas M.W. 2003. Characterization of urease activity in three marine phytoplankton species. Marine Biology, 142:949-956.
  • Lomas, M. W., Glibert, P. M., Shiah, F-K., and Smith, E. M. 2002. Microbial Processes and Temperature in Chesapeake Bay: Current Relationships and Potential Impacts of Regional Warming. Global Change Biology, 8:51-70.
  • Lomas, M. W., Trice, T. M., Glibert, P. M., Bronk, D. A., and McCarthy, J. J. 2002. Temporal and spatial dynamics of urea concentrations in Chesapeake Bay: Biological versus physical forcing. Estuaries 25:469-482.
  • Lomas, M.W., Bates, N.R., Knap, A.H., Karl, D.A., Lukas, R., Landry, M.R., Bidigare, R.R., Steinberg, D.A., and Carlson, C.A. 2002. Refining our understanding of ocean biogeochemistry and ecosystem functioning. EOS, 83:559.
  • Lomas, M.W., Glibert, P. M., Clougherty, D. A., Huber, D. E., Jones, J., Alexander, J., and Haramoto, E. 2001. Elevated organic nutrient ratios associated with brown tide blooms of Aureococcus anophagefferens (Pelagophyceae). Journal of Plankton Research, 23:1339-1344.
  • Glibert, P. M., Magnien, R., Lomas, M. W., Alexander, J., Fan, C., Haramoto, E., Trice, M., and Kana, T. 2001. Harmful algal blooms in the Chesapeake Bay, USA: Comparison of events. Estuaries, 24:875-883.
  • Bronk, D.A., Lomas, M.W., Glibert, P.M., Schukert, K.J., and Sanderson, M.P. 2000. Total dissolved nitrogen analysis: Comparisons between the persulfate, UV, and high temperature oxidation methods. Marine Chemistry, 69:163-178.
  • Lomas, M. W., Rumbley, C., and Glibert, P. M. 2000. Ammonium release by nitrogen sufficient diatoms in response to rapid increases in irradiance. Journal of Plankton Research, 22:2351-2366.
  • Lomas, M. W., and Glibert, P. M. 2000. Comparisons of nitrate uptake, storage and reduction in marine diatoms and flagellates. Journal of Phycology, 36:903-913.
  • Lomas M. W., and Glibert, P. M. 1999. Temperature regulation of nitrate uptake: A novel hypothesis about nitrate uptake and reduction in cool-water diatoms. Limnology and Oceanography, 43:556-572.
  • Lomas, M. W., and Glibert, P. M. 1999. Interactions between ambient NH4+ and NO3- uptake and assimilation: Comparison of diatoms and dinoflagellates at several growth temperatures. Marine Biology, 133:541-551.
  • Berg, G.M., Glibert, P.M., Lomas, M.W., and Burford, M. 1997. Organic nitrogen uptake and growth by the Chrysophyte Aureococcus anophagefferens during a brown tide event. Marine Biology, 129:377-387.
  • Lomas, M. W., Glibert, P., Berg, G.M., and Burford, M. 1996. Characterization of nitrogen uptake by Aureococcus anophagefferens as a function of incubation duration, substrate concentration, irradiance and temperature. Journal of Phycology, 32:907-916.
  • Escoubas, J-M., Lomas, M.W., LaRoche, J., and Falkowski, P. 1995. Light intensity regulation of cab gene transcription is signaled by the redox state of the plastoquinone pool. Proceedings of the National Academy of Sciences, USA, 92:10237-10241.