, Volume 13, Issue 4, pp 404–417 | Cite as

Marsh-water column interactions in two Louisiana estuaries. II. Nutrient dynamics

  • Daniel L. Childers
  • John W. Day


The exchange of dissolved nutrients between marshes and the inundating water column was measured using throughflow marsh flumes built, in two microtidal Louisiana estuaries: the Barataria Basin estuary and Fourleague Bay. The flumes were sampled between September 1986 and April 1988, coincident with an extended period of low sea level on the Louisiana coast. The Barataria Basin estuary is in the later, deteriorating stage of the deltaic cycle, characterized by low freshwater inputs and subsiding marshes. Both brackish and saline marshes supplied dissolved organic nitrogen (DON), inorganic nitrogen (ammonium + nitrate + nitrite = DIN), dissolved organic carbon (DOC), and total nitrogen (as total Kjeldahl nitrogen = TKN) to the water column. The export of DIN is probably related to the N accumulated in earlier stages of deltaic development and released as these marshes deteriorate. Coastal brackish marshes of Fourleague, Bay, part of an accreting marsh system in an early, developmental stage of the deltaic cycle, exported TKN to the open water estuary in all samplings. This marsh apparently acted as a short-term buffer of DIN by taking up NH4+ in spring, when baywide concentrations were high, and supplying DIN to the estuary in summer and fall, when concentrations, in the bay were lower. Differences in phosphorus (P), DOC, and DON fluxes between these two estuaries were also observed. The Fourleague Bay site exported soluble reactive phosphorus (SRP) and total phosphorus (TP) and imported DOC. This P export may be related to remobilization of sediment-bound riverine P by the reducing, soils of the marshes. Fluxes of SRP at the Barataria Basin sites were variable and low while DOC was imported. Most imports of dissolved nutrients were correlated with higher upstream [source] concentrations, and flux rates were fairly consistent throughout the tide. Dissolved nutrient exports, did not correlate with upstream concentrations, though, and in many cases the flux was dominated by early, flood tide nutrient release. This pulsed behavior may be caused by rapid diffusion from the sediments early in the tidal cycle, when the sediment-water concentration gradient is largest. Interestuary differences were also seen in particulate organic matter fluxes, as the Fourleague Bay marsh exported POC and PON during all samplings while Barataria Basin imported these nutrients. In general, the magnitude and direction of nutrient exchanges in Louisiana marshes, seem to reflect the deltaic successional stage of the estuary.


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Literature Cited

  1. Armstrong, N. E., andM. O. Hinson. 1978. Influence of flooding and tides on nutrient exchange from a Texas marsh, p. 365–379.In M. L. Wiley (ed.), Estuarine Interactions.. Academic Press. New York.Google Scholar
  2. Axelrad, D. M., K. A. Moore, and M. E. Bender. 1976. Nitrogen, phosphorus, and carbon flux in Chesapeake Bay marshes. Va. Polytech. Inst., Virginia Water Res. Res. Center Bull. 79. 182 p.Google Scholar
  3. Bowden, W. B. 1986. Nitrification, nitrate reduction, and nitrogen immobilization in a tidal fresh-to-brackish marsh sediment.Ecology 67:88–99.CrossRefGoogle Scholar
  4. Casselman, M. E., W. H. Patrick, Jr., andR. D. DeLaune. 1981. Nitrogen fixation in a Gulf Coast saltmarsh.Journal of the Soil Science Society of America 45:51–56.Google Scholar
  5. Chalmers, A. G., R. G. Wiegert, andP. L. Wolf. 1985. Carbon balance in a salt marsh: Interactions of diffusive export, tidal, deposition, and rainfall-caused erosion.Estuarine Coastal and Shelf Science 21:757–771.CrossRefGoogle Scholar
  6. Childers, D. L. 1989. Marsh: water column exchanges in the Fourleague Bay estuary, p. 53–57.In J. W. Day and W. H. Conner (eds.) Physical Processes, Ecological Dynamics, and Management Implications: Results of Research in the Atchafalaya Bay Delta, LA. Louisiana State University, Seagrant College Program Report.Google Scholar
  7. Childers, D. L. andJ. W. Day, Jr. 1988. Direct quantification of nutrient and material fluxes between microtidal Gulf Coast wetlands and the estuarine water column.Estuarine Coastal and Shelf Science 27:483–494.CrossRefGoogle Scholar
  8. Childers, D. L. andJ. W. Day, Jr. 1990. Marsh-water column interactions in two Louisiana estuaries. I. Sediment dynamics.Estuaries 13:393–403.CrossRefGoogle Scholar
  9. Childers, D. L., J. W. Day, Jr., andR. A. Muller. 1990. Relating climatological forcing to coastal water levels, in Louisiana estuaries and the potential importance of El Ninosouthern oscillation events.Climate Research 1:31–42.CrossRefGoogle Scholar
  10. Chrzanowski, T. H., L. H. Stevenson, andJ. D. Spurrier. 1982a. Transport of particulate organic carbon through the North Inlet ecosystem.Marine Ecology Progress Series 7:231–245.CrossRefGoogle Scholar
  11. Chrzanowski, T. H., L. H. Stevenson, andJ. D. Spurrier. 1982b. Transport of microbial biomass through the North Inlet ecosystem.Microbiological Ecology 8:139–156.CrossRefGoogle Scholar
  12. Chrzanowski, T. H., L. H. Stevenson, andJ. D. Spurrier. 1983. Transport of dissolved organic carbon through a major creek of the North Inlet ecosystem.Marine Ecology Progress Series 13:167–174.CrossRefGoogle Scholar
  13. Coleman, J. M. andS. M. Gagliano. 1964. Cyclic sedimentation in the Mississippi River deltaic plain.Transactions of the Gulf Association of Geological Societies 14:67–80.Google Scholar
  14. Conner, W. and J. W. Day, Jr. 1987. Ecology of Barataria Basin, LA: An Estuarine Profile. United States Fish and Wildlife Service Biological Report 85 (7.13). 164 p.Google Scholar
  15. Daly, M. A. andA. C. Mathieson. 1981. Nutrient fluxes within a small north temperate., saltmarsh.Marine Biology 61: 337–344.CrossRefGoogle Scholar
  16. Dankers, N., M. Binsbergen, K. Zegers, R. Laane, andM. R. Van der Loeff. 1984. Transportation of water, particulate and dissolved organic and inorganic matter between a saltmarsh and the Ems-Dollard estuary, The Netherlands.Estuarine Coastal and Shelf, Science 19:143–165.CrossRefGoogle Scholar
  17. DeLaune., R. D., R. H. Baumann, andJ. G. Gosselink. 1983. Relationships among vertical accretion, coastal submergence, and erosion in a Louisiana Gulf Coast marsh.Journal of Sedimentary Petrology 53:147–157.Google Scholar
  18. DeLaune, R. D. andW. H. Patrick, Jr. 1980. Nitrogen and phosphorus cycling in a Gulf Coast saltmarsh., p. 143–152.In V. Kennedy (ed.) Estuarine, Perspectives. Academic Press, New York.Google Scholar
  19. Folger, D. W. 1972. Texture and organic carbon content of bottom sediments in some estuaries of the United States, p. 391–408.In B. W. Nelson (ed.), Environmental Framework of Coastal Plain Estuaries. Geological Society of America Memoir 133.Google Scholar
  20. Froelich, P. N. 1988. Kinetic control of dissolved phosphate in natural rivers and estuaries: A primer on the phosphate buffer mechanism.Limnology, and Oceanography 33:649–668.Google Scholar
  21. Gagliano, S. M., K. L. Meyer-Arendt, andK. M. Wicker. 1981. Land loss in the Mississippi River deltaic plain.Transactions of the Gulf Coast Association of Geological Societies 31:295–306.Google Scholar
  22. Gagliano, S. M. and J. L. VanBeek. 1975. An approach to multiuse management in the Mississippi delta system, p. 223–238.In M. L. roussard (ed.), Deltas, Models for Exploration. Houston Geol. Soc.Google Scholar
  23. Gallagher, J. L., W. J. Pfeiffer, andL. R. Pomeroy. 1976. Leaching and microbial utilization of DOC from leaves ofSpartina alterniflora.Estuarine and Coastal, Marine Science 4: 467–478.CrossRefGoogle Scholar
  24. Gardner, L. R. 1975. Runoff from an intertidal marsh during low tide exposure—Recession curves and chemical characteristics.Limnology and Oceanography 20:81–89.Google Scholar
  25. Heinle, D. R. andD. A. Flemer. 1976. Flows of materials between poorly flooded tidal marshes and an estuary.Marine Biology 35:359–373.CrossRefGoogle Scholar
  26. Kolb, C. R. and J. R. Van Lopik. 1966. Depositional environments of the Mississippi River deltaic plain, SE Louisiana, p. 17–62.In M. L. Shirley (ed.), Deltas and Their Geologic Framework. Houston Geological Society.Google Scholar
  27. Lee, V. 1979. Net nitrogen flux between the emergent marsh and tidal waters. M.S. Thesis, University of Rhode Island. 67 p.Google Scholar
  28. Madden, C. J. 1986. Distribution and loading of nutrient in Fourleague Bay, a shallow Louisiana estuary. M.S. Thesis, Louisiana State University. 143 p.Google Scholar
  29. Madden, C. J., J. W. Day, Jr., andJ. M. Randall. 1988. Freshwater and marine coupling in estuaries of the Mississippi River deltaic plain.Limnology and Oceanography 33:982–1004.Google Scholar
  30. Miller, C.A. 1983. Sediment and nutrient inputs to the marshes surrounding Fourleague Bay, LA. M.S. Thesis, Louisiana State University. 68 p.Google Scholar
  31. Nichols, M. M. 1972. Sediments of the James River, estuary, Va., p. 169–212.In B. W. Nelson (ed.), Environmental Frame-work of Coastal Plain Estuaries. Geological Society of America memoir 133.Google Scholar
  32. Nixon, S. W. 1980. Between coastal marshes and coastal waters: A review of 20 years of speculation and research on the role of saltmarshes in estuarine productivity and water chemistry, p. 437–525.In P. Hamilton and K. B. MacDonald (eds.), Estuarine and Wetland Processes.Google Scholar
  33. Odum, W. E. 1984. Dual-gradient concept of detritus transport and processing in estuaries..Bulletin of Marine Science 35:510–521.Google Scholar
  34. Odum, W. E., J. S Fisher, and J. C. Pickral. 1979. Factors controlling the flux of POC from estuarine wetlands, p. 69–80.In R. J. Livingston (ed.), Ecological Processes in Coastal and Marine Systems.Google Scholar
  35. Owens, N. J. P., R. G. C. Mantoura, P. H. Burkill, R. J. M. Howland, A. J. Pomroy andE. M. S. Woodward. 1986. Nutrient cycling studies in Carmarthen Bay: Phytoplankton production, nitrogen assimilation and regeneration.Marine Biology 93:329–342.CrossRefGoogle Scholar
  36. Pomeroy, R. L., K. Bankroft, J. Breed, R. R. Chrisstian, D. Frankenberg, J. R. Hall, G. G. Maurer, W. J. Wiede, R. G. Wiegert, andR. L. Wetzel. 1977. Flux of organic matter through a saltmarsh, p. 270–281.In M. Wiley (ed.)., Estuarine Processes, Vol. 2. Academic Press, New York.Google Scholar
  37. Randall, J. M. andJ. W. Day, Jr. 1987. Effects of river discharge and vertical circulation on aquatic primary production in a turbid Louisiana estuary.Netherlands Journal of Sea Research 21:231–242.CrossRefGoogle Scholar
  38. Simpson, R. L., R. E. Good, R. Walker, andB. R. Frasco. 1983. The role of Delaware River freshwater tidal wetlands in the retention of nutrients and heavy metals.Journal of Environmental Quality 12:41–48.CrossRefGoogle Scholar
  39. Smith, C. J. andR. D. DeLaune. 1983. Nitrogen loss from freshwater and saline estuarine sediments.Journal of Environmental Quality 12:514–518.Google Scholar
  40. Smith, C. J., R. D. DeLaune, andW. H. Patrick, Jr. 1985. Fate of riverine nitrate entering an estuary: Denitrification and nitrogen burial.Estuaries 8:15–21.CrossRefGoogle Scholar
  41. Stern, M. K., J. W. Day, Jr. andK. G. Teague. 1986. Seasonality of materials transport through a coastal freshwater marsh: Riverine versus tidal forcing.Estuaries 9:301–308.CrossRefGoogle Scholar
  42. Stevenson, J. C., D. R. Heinle, D. A. Flemer, R. J. Small, R. A. Rowland, andJ. F. Ustach. 1977. Nutrient exchanges between brackish water marshes and the estuary, p. 219–240.In M. Wiley (ed.), Estuarine Processes, Vol. 2. Academic Press, New York.Google Scholar
  43. Stevenson, J. C., L. G. Ward, andM. S. Kearney. 1988. Sediment transport and trapping in marsh systems: Implications of tidal flux studies.Marine Geology 80:37–59.CrossRefGoogle Scholar
  44. Teague, K. G., C. J. Madden, andJ. W. Day, Jr. 1988. Sediment-water oxygen and nutrient fluxes in a river-dominated estuary.Estuaries 11:1–9.CrossRefGoogle Scholar
  45. United States Environmental Protection Agency. 1979. Standard methods for chemical analysis of water and wastewater. Methods Develop. Qual. Assurance Res. Lab. NERC EPA-62516-741003.Google Scholar
  46. Valiela, I., J. M. Teal, S. P. Volkmann, D. Shafer, andE. J. Carpenter. 1978. Nutrient and particulate fluxes in a salt marsh ecosystem: Tidal exchanges and inputs by precipitation and groundwater.Limnology and Oceanography 23:798–812.Google Scholar
  47. Welsh, B. L. 1980. Comparative nutrient dynamics of a marshmudflat ecosystem.Estuarine and Coastal Marine Science 10: 143–164.CrossRefGoogle Scholar
  48. Wetzel, R. G., andB. A. Manny. 1972. Secretion of DOC and nitrogen by aquatic macrophytes.Verh. Int. Verein. Limnol. 18:162–174.Google Scholar
  49. Whiting, G. J. H. N. McKellar, Jr.,B. Kjerfve, andJ. D. Spurrier. 1987. Nitrogen exchange between a southeastern USA saltmarsh ecosystem and the coastal ocean.Marine Biology 95:173–182.CrossRefGoogle Scholar
  50. Whiting, G. J., H. N. McKellar, andT. G. Wolaver. 1989. Nutrient exchange between a portion of vegetated saltmarsh and the adjoining creek.Limnology and Oceanography 34:463–473.Google Scholar
  51. Wolaver, T. G. andJ. D. Spurrier. 1988a. The exchange of phosphorus between a euhaline vegetated marsh and the adjacent tidal creek.Estuarine Coastal and Shelf Science. 26:203–214.CrossRefGoogle Scholar
  52. Wolaver, T. G. andJ. D. Spurrier. 1988b. Carbon transport between a euhaline vegetated marsh in South Carolina and the adjacent tidal creek: Contributions via tidal inundation, runoff, and seepage.Estuarine Coastal and Shelf Science 26: 203–214.CrossRefGoogle Scholar
  53. Wolaver, T. G., R. L. Wetzel, J. C. Zieman., andK. L. Webb. 1980. Nutrient interactions between salt marsh, mudflats, and estuarine water, p. 123–133.In V. S. Kennedy (ed.), Estuarine Perspectives Academic Press, New York.Google Scholar
  54. Wolaver, T. G., R. L. Wetzel, J. C. Zieman, andK. L. Webb. 1983. Tidal exchange of nitrogen and phosphorus between a mesohaline vegetated marsh and the surrounding estuary in the Lower Chesapeake Bay.Estuarine Coastal and Shelf Science 16: 321–332.CrossRefGoogle Scholar
  55. Wolaver, T., G. Whiting., B. Kjerfve, J. Spurrier, H. McKellar, R. Dame, T. Chrzanowski, R. Zingmark, andT. Williams. 1985. The flume design—A methodology for evaluating material, fluxes between a vegetated salt marsh and the adjacent tidal creek.Journal of Experimental Marine Biology and Ecology 91:281–291.CrossRefGoogle Scholar
  56. Wolaver, T. G. andJ. C. Zieman. 1983. Effect of water column, sediment, and time over the tidal cycle on the chemical composition of tidal water in a mesohaline marsh.Marine Ecology Progress Series 12:123–130.CrossRefGoogle Scholar
  57. Woodwell, G. M., D. E. Whitney, C. A. S. Hall, andR. A. Houghton. 1977. The Flax Pond ecosystem study: Exchanges of carbon in water between a salt marsh and Long Island Sound.Limnology and Oceanography 22:833–838.CrossRefGoogle Scholar
  58. Woodwell, G. M., C. A. S. Hall, D. E. Whitney, andR. A. Houghton. 1979. The Flax Pond ecosystem study: Exchanges of inorganic nitrogen between an estuarine marsh and long Island Sound.Ecology 60:695–702.CrossRefGoogle Scholar

Copyright information

© Estuarine Research Federation 1990

Authors and Affiliations

  • Daniel L. Childers
    • 1
  • John W. Day
    • 1
  1. 1.Coastal Ecology Institute and Department of Marine Sciences Center for Wetland ResourcesLouisiana State UniversityBaton Rouge
  2. 2.Baruch Institute for Marine Biology and Coastal ResearchUniversity of South CarolinaGeorgetown

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