Current research focuses on the biogeochemical controls of nutrient availability and on nutrient limitation of marine macrophytes (algae and seagrasses) in both temperate and tropical coastal ecosystems. This work involves field and laboratory investigations, and examines the direct linkage between macrophyte ecophysiology and processes at the community and ecosystem level. Active research projects include studies of macroalgal effects on nutrient dynamics in shallow coastal waters, the coupling of macrophyte production and heterotrophic nitrogen fixation, and the geochemical mechanisms influencing phosphorus availability in tropical carbonate marine sediments. The application of much of this work concerns the effects of, and recovery from, eutrophication in shallow coastal regions.

Selected Recent Publications

McGlathery, K.J., I.C. Anderson, and A.C. Tyler. 2001. Magnitude and variability of benthic and pelagic metabolism in a temperate coastal lagoon. Marine Ecology Progress Series 216:1-15.

McGlathery, K.J. 2001. Macroalgal blooms contribute to the decline of seagrass in nutrient-enriched coastal waters. Journal of Phycology 37:1-4.

McGlathery, K., P. Berg, and R. Marino. 2001. Using porewater profiles to assess nutrient availability in seagrass-vegetated carbonate sediments. Biogeochemistry 56:239-263.

Berg, P. and K. J. McGlathery. 2001. A high-resolution porewater sampling for sandy sediments. Limnology and Oceanography. 46:203-210

Buffam, I.D., J.N. Galloway, L.K. Blum, and K.J. McGlathery. 2001. A stormflow/baseflow comparison of dissolved organic matter concentrations and bioavailability in an Appalachian stream during storms. Biogeochemistry 53:269-306.

Giannotti, A.L. and K.J. McGlathery. 2001. Consumption of Ulva lactuca (Chlorophyta) by the omnivorous mud snail Ilyanassa obsoleta. Journal of Phycology 37:1-7.

Havens, K.E., A.C. Tyler, J. Hauxwell, S. Thomas, K.J. McGlathery, I. Valiela, J. Cebrian, A.D. Steinman, and S.J. Hwang. 2001. Complex interactions between autotrophs in shallow marine and freshwater ecosystems: Implications for community responses to nutrient stress. Environmental Pollution 113:95-107.

Tyler, A.C., K.J. McGlathery, and I.C. Anderson. 2001. Macroalgal mediation of dissolved organic nitrogen fluxes in a temperate coastal lagoon. Estuarine, Coastal and Shelf Science 53:155-168.

McGlathery, K.J. and M.F. Pedersen. 1999. The effect of growth irradiance on the coupling of carbon and nitrogen metabolism in Chaetomorpha linum (Chlorophyta). Journal of Phycology 35:721.

McGlathery, K.J., N. Risgaard-Petersen, and P.B. Christensen. 1998. Temporal and spatial variation nitrogen fixation activity in the eelgrass zostera marina rhizosphere. Marine Ecology Progress Series, in press.

Jensen, H., K.J. McGlathery, R. Marino, and R.W. Howarth, 1998. Forms and availability of sediment phosphorus in carbonate sand of Bermuda seagrass beds. Limnology & Oceanography, in press.

McGlathery, K.J., D. Krause-Jensen, S. Rysgaard, and P.B. Christensen, 1997. Patterns of ammonium uptake within dense mats of the filamentous macroalga Chaetomorpha linum. Aquatic Botany, 59:99-115.