Organic matter and dissolved inorganic nitrogen distributions in estuarine muddy deposits
Keywords:
sediment resuspension and sedimentation, OM and DIN, grain-size, estuary, Scheldt, FraserAbstract
Organic matter (OM) and dissolved inorganic nitrogen (DIN: nitrite, nitrate and ammonium) in the sediments as well as in the water column of two temperate estuaries, the Scheldt Estuary in Belgium and the Netherlands, and the Fraser Estuary in Canada, were investigated. Three representative stations, differing in salinity and representing areas of fast sedimentation, were selected in each estuary. Samples were taken during periods of high and low river discharge. The results show, in both estuaries, that the vertical distributions of OM and DIN in a sediment layer are affected by the instability, caused by episodic resuspension and re-deposition, of the uppermost sediment layer. The findings of this study suggest a hypothesis, next to biogeochemical processes, that the OM and DIN distributions in upper sediment layers are influenced by sedimentary processes in the estuarine environment. The same sedimentary processes even in different estuaries affect OM and DIN distributions in an equivalent way. Correspondingly, the similarity or difference in OM and DIN distribution to a certain extent reflects the sedimentary dynamics. River runoff and sediment resuspension and sedimentation have important impacts on sediment behaviour and thus regulate OM and DIN distributions and shape their vertical profiles in the sediments. As a reflection, the coupling of sediment resuspension followed by redeposition can be deduced from the vertical profile of DIN in the bottom sediments which, in turn, can provide a time-integrated periodic record of the most recent sedimentary history.
References
Armstrong, F. A., Stearns, C. R. and Strickland, J. D. 1967. The measurement of upwelling and subsequent biological processes by means of the Technicon Autoanalyzer and associated equipment. Deep-Sea Res., 14: 381–389.
Baeyens, W., Van Eck, B., Lambert, C., Wollast, R. and Goeyens, L. 1998. General description of the Scheldt estuary. Hydrobiologia, 366: 1–14.
Barrie, J. V. and Currie, R. G. 2000. Human impact on the sedimentary regime of the Fraser River Delta, Canada. Journal of Coastal Research, 16: 747–755.
Belmans, H. 1991. Discharge in the Scheldt basin. Month and year averaged values 1981-1990 Ministry of the Flemish Community. (In Dutch). Antwerpse Zeehavendiens. Antwerp, Belgium
Bennett, R. H., Ransom, B., Kastner, M., Baerwald, R. J., Hulbert, M. H., Sawyer, W. B., Olsen, H. and Lambert, M. W. 1999. Early diagenesis: impact of organic matter on mass physical properties and processes, California continental margin. Marine Geology, 159: 7–34.
Billen, G. 1982. An idealised model of nitrogen recycling in marine sediments. American Journal of Science, 282: 512–541.
Billen, G., Dessery, S., Lancelot, C. and Meybeck, M. 1989. Seasonal and inter-annual variations of nitrogen diagenesis in the sediments of a recently impounded basin. Biogeochemistry, 8: 73–100.
Blackburn, T. H. and Henriksen, K. 1983. Nitrogen cycling in different types of sediments from Danish waters. Limnology and Oceanography, 28: 477–493.
Boderie, P. M. A., Zwolsman, J. J. G., Van Eck, G. T. M. and Van Der Weijden, C. H. 1993. Nutrient biogeochemistry in the water column (N, P, Si) and pore-water (N) of sandy sediment of the Scheldt estuary (SW-Netherlands). Netherlands Journal of Aquatic Ecology, 27: 309–318.
Bremner, I. M. and Mulvaney, C. S. 1982. “Total nitrogen”. In Methods of Soil Analysis: Chemical and Microbiological Properties, Edited by: Page, A. H., Miller, R. H. and Keeney, D. R. 595–624. Madison, WJ, , USA: Amer. Soc. Agron. Agron. Monog. No. 9
Cattol, D. 1962. “The clay minerals”. In Sedimentary Petrography: Volume II – Principles and Applications , 4th revised edition, Edited by: Milner, H. B. London: George Allen & Unwin Ltd..
Chen, M. S., Wartel, S., Van Eck, G. T. M. and Van Maldegem, D. C. 2005. Suspended matter in the Scheldt estuary. Hydrobiologia, 540: 79–104.
Environment Canada. 1992. A State of the Environment synopsis: the Lower Fraser River Basin, Vancouver, B.C.: Environment Canada.
Fenchel, T. and Blackburn, T. H. 1979. Bacteria and mineral cycling, New York: Academic Press.
Fettweis, M. 1995. Modelling currents and sediment trasnport phenomena in shelf seas and estuaries, Leuven, , Belgium: Katholieke Universiteit Leuven, Faculteit Wetenschappen, Departement Geologie-Geografie, Afdeling Historische Geologie.
Gale, S. J. and Hoare, P. G. 1991. Quaternary sediments: petrographic methods for the study of unlithified rocks, Chichester and New York, , USA: Belhaven Press, Wiley. (Chapter 5.9)
Henriksen, K. K. and Kemp, W. M. 1988. “Nitrification in estuarine and coastal marine sediments”. In Nitrogen cycling in coastal marine environments, Edited by: Blackburn, T. H. and Sorensen, J. 207–249. New York, NY, , USA: SCOPE, Wiley & Sons.
Herman, P. M. J., Middelburg, J. J. and Heip, C. H. R. 2001. Benthic community structure and sediment processes on an intertidal flat: results from the ECOFLAT project. Continental Shelf Research., 21: 2055–2071.
Jenkins, M. C. and Kemp, W. M. 1984. The coupling of nitrification and denitrification in two estuarine sediments. Limnol. Oceanogr., 29: 609–619.
Koroleff, F. 1969. Direct determination of ammonia in natural waters as indophenol blue. Int. Council Expl. Sea, 9: 19–22.
Lin, C. P. and Mehta, A. J. 1989. Turbidity induced sedimentation in closed-end channels. Journal of Coastal Research, 5: 391–401.
McLaren, P. and Ren, P. 1995. Sediment transport and its environmental implications in the lower Fraser River and Fraser delta, Vancouver, B.C., , Canada: Environment Canada. DOE-FRAP 1995-03
Nedwell, D. B., Jickells, T. D., Trimmer, M. and Sanders, R. 1999. “Nutrients in estuaries”. In Estuaries 29, Edited by: Nedwell, D. B. and Raffaelli, D. G. 43–92. London: Academic Press.
Oremland, R. S., Umberger, C., Culbertson, C. W. and Smith, R. L. 1984. Denitrification in San Francisco Bay intertidal sediments. Applied and Environmental Microbiology, 47: 1106–1112.
Paterson, D. M. 1989. Short-term changes in the erodibility of intertidal cohesive sediments related to the migratory behavior of epileptic diatoms. Limnology and Oceanography, 34: 223–234.
Paterson, D. M., Crawford, R. M. and Little, C. 1990. Subaerial exposure and changes in the stability of intertidal estuarine sediments. Estuarine, Coastal and Shelf Science, 30: 541–556.
Reineck, H. E. and Wunderlich, F. 1969. Die Entstehung von Schichten und Schichtbänken im Watt (The formation of layers and layer banks on tidal flats (In German). Senckenbergiana Maritima, 150: 85–106.
Revsbech, N. P. and Jorgensen, B. B. 1986. Microelectrodes: their use in microbial ecology. Adv. Microb. Ecol., 9: 293–352.
Revsbech, N. P., Sorensen, J., Blackburn, T. H. and Lomholt, J. P. 1980. Distribution of oxygen in marine sediments measured with microelectrodes. Limnol. Oceanogr., 25: 403–411.
Rysgaard, S., Thastum, P., Dalsgaard, T., Christensen, P. B. and Sloth, N. P. 1999. Effects of salinity on NH4+ adsorption capacity, nitrification, and denitrification in Danish estuarine sediments. Estuaries, 22: 21–30.
Schoellhamer, D. H. 1996. Anthropogenic sediment resupension mechanisms in a shallow microtidal estuary. Estuarine, Coastal and Shelf Science, 43: 533–548.
Sloth, N. P., Blackburn, H., Hansen, L. S., Risgaard-Petersen, N. and Lomstein, B. A. 1995. Nitrogen cycling in sediments with different organic loading. Mar. Ecol. Prog. Ser., 116: 163–170.
Stecko, J. R. P. and Bendell-Young, L. I. 2000. Contrasting the geochemistry of suspended particulate matter and deposited sediments within an estuary. Applied Geochemistry, 15: 753–775.
Strickland, J. D. H. and Parsons, T. R. 1972. A practical handbook of seawater analysis, Ottawa, ON, , Canada: Fisheries Research Board of Canada.
Taverniers, E. 1999. The lower Maritime Scheldt: Mud Balans 1998, Section Maritime Scheldt: Antwerp, Ministry of the Flemish Community, Department of Environment and Infrastructure, Administration Waterways and Maritime Affairs. (In Dutch)
Terwindt, J. H. J. 1977. Mud in the Dutch Delta area. Geologie en mijnbouw, 56: 203–210.
Van Rijn, L. C. 1993. Principles of sediment transport in rivers, estuaries and coastal seas, Amsterdam, , The Netherlands: Aqua Publications.
Wartel, S. 1977. Composition, transport and origin of sediments in the Scheldt Estuary. Geologie en mijnbouw, 56: 219–233.
Wartel, S., Barusseau, J. P. and Cornand, L. 1995. Improvement of grain-size analyses using the automated SEDIGRAPH 5100, Bruxelles, Belgique: Institut royal des Sciences naturelles de Belgique. Documents de Travail de L!I. R. Sc. N. B., 80
Wood, E. D., Armstrong, F. A. and Richards, F. A. 1967. Determination of nitrate in sea water by cadmium-copper reduction to nitrate. J. Mar. Biol. Assoc., 47: 23–31.
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