Articles | Volume 21, issue 10
Research article
29 May 2024
Research article |  | 29 May 2024

Sorption of colored vs. noncolored organic matter by tidal marsh soils

Patrick J. Neale, J. Patrick Megonigal, Maria Tzortziou, Elizabeth A. Canuel, Christina R. Pondell, and Hannah Morrissette

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Cited articles

Bertilsson, S. and Jones, J. B.: Supply of Dissolved Organic Matter to Aquatic Ecosystems, in: Aquatic Ecosystems: Interactivity of Dissolved Organic Matter, edited by: Findlay, S. E. G. and Sinsabaugh, R. L., Academic Press, San Diego, USA, 3–24,, 2003. 
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., and Brandes, J. A.: Seasonal dynamics of dissolved, particulate and microbial components of a tidal saltmarsh-dominated estuary under contrasting levels of freshwater discharge, Estuar. Coast. Shelf Sci., 182, 72–85,, 2016. 
Cawley, K. M., Butler, K. D., Aiken, G. R., Larsen, L. G., Huntington, T. G., and McKnight, D. M.: Identifying fluorescent pulp mill effluent in the Gulf of Maine and its watershed, Mar. Pollut. Bull., 64, 1678–1687,, 2012. 
Chin, Y.-P., Aiken, G., and O'Loughlin, E.: Molecular weight, polydispersity, and spectroscopic properties of aquatic humic substances, Environ. Sci. Technol., 28, 1853–1858,, 2002. 
Christy, M. and Dickman, C.: Effects of salinity on tadpoles of the green and golden bell frog (Litoria aurea), Amphibia-Reptilia, 23, 1–11,, 2002. 
Short summary
Adsorption/desorption incubations were conducted with tidal marsh soils to understand the differential sorption behavior of colored vs. noncolored dissolved organic carbon. The wetland soils varied in organic content, and a range of salinities of fresh to 35 was used. Soils primarily adsorbed colored organic carbon and desorbed noncolored organic carbon. Sorption capacity increased with salinity, implying that salinity variations may shift composition of dissolved carbon in tidal marsh waters.
Final-revised paper