Roxanne Marino

Research Professor

Image of Roxanne Marino

Education

  • B.S., Chemistry (summa cum laude), University of Hartford (1980)
  • Ph.D., Cornell University (2001)

Academic Interests

  • Biogeochemistry and Ecosystem Science
  • Sustainability, Environment and Conservation

Research areas

  • Biogeochemistry and Ecosystem Science
  • Sustainability, Environment and Conservation

Links

Keywords

Ecosystem science, Biogeochemistry, Aquatic ecology, Nitrogen, Estuaries  

Publications

  • Swaney, D.P., T.J. Butler, R.W. Howarth, R. Marino, G. M. Beachley, and C. Baublitz. 2026. Atmospheric ammonia deposition: A significant source of nitrogen to an oligotrophic lake and its watershed. Journal of Geophysical Research Biogeosciences 131. https://doi.org/10.1029/2025JG009389
  • Hayn, M., R. Marino, and R.W. Howarth. 2026. Long-term trends in nutrient exchange between a New England estuary and coastal waters. Ocean-Land-Atmosphere Research; in review.
  • Hayn, M., R. Marino, N.K. Ganju, R.W. Howarth, and K.H. Foreman. 2025. Using multiple lines of evidence to evaluate spatio-temporal trends in nitrogen loading to a eutrophic estuary. Estuaries & Coasts 49,24. https://doi.org/10.1007/s12237-025-01630-0
  • Haviland, K.A., R.W. Howarth, A.E. Giblin, and R. Marino. 2024. The potential role of sediment iron and sulfur speciation in seagrass meadow loss and recovery. Ocean-Land-Atmosphere Research; 2024(3): Article 0069. https://doi.org/10.34133/olar.0069
  • Marino, R., M. Hayn, R.W. Howarth, A.E. Giblin, K.J. McGlathery, and P. Berg. 2023. Nitrogen fixation associated with epiphytes on the seagrass Zostera marina in a temperate lagoon with moderate to high nitrogen loads.  Biogeochemistry 166:211-226. doi:10.1007/s10533-023-010083-2
  • Haviland, K.A, R.W. Howarth, R. Marino, and M. Hayn. 2022. Variation in sediment and seagrass characteristics reflect multiple stressors along a eutrophication gradient in a New England. lagoon. Limnology & Oceanography 67:660-672.
  • Marino, R. and R.W. Howarth. 2022. Nitrogen Fixation. Pages 163-170 in: Mehner, Thomas and Tockner, Klement (eds), Encyclopedia of Inland Waters, 2nd Edition. vol [1]. Oxford: Elsevier.
  • Schneider, R., N. Baker, E. Chase, S. Dunn, R. Marino, D. Orr, W. Pluer, and S. Reynolds. 2022. Replumbing watersheds: a how-to guide for improving roadside ditch management to buffer the impacts of climate change. In: W.L. Filho (ed.), Climate Change Strategies: Handling the challenges of adapting to a changing climate, ICCIR, Springer Nature.
  • Howarth, R.W., F. Chan, D.P. Swaney, R. Marino, and M. Hayn. 2021. Role of External inputs of nutrients to aquatic ecosystems in determining prevalence of nitrogen vs. phosphorus limitation of net primary productivity. Biogeochemistry. doi:10.1007/s10533-021-00765-z
  • Wong, M., C. Neill, R. Marino, D. Silvério, and R.W. Howarth.  2020. Molybdenum, phosphorus, and pH do not constrain nitrogen fixation in a tropical forest in the southeastern Amazon.  Ecology. doi:10.1002/ecy.3211
  • Marino, R. and R.W. Howarth. 2016. Why is planktonic nitrogen fixation so rare in coastal marine ecosystems?  Insights from a cross-systems approach. Pages 127-139 in: P.M. Glibert and T.M. Kana (eds.), Aquatic Microbial Ecology and Biogeochemistry: A Dual Perspective. Dordrecht:Springer.  doi:10.1007/978-3-319-30259-1_11.
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