Organic matter diagenesis at the oxic/anoxic interface in coastal marine sediments, with emphasis on the role of burrowing animals

  • Erik Kristensen
Conference paper
Part of the Developments in Hydrobiology book series (DIHY, volume 151)

Abstract

The present paper reviews the current knowledge on diagenetic carbon transformations at the oxic/anoxic interface in coastal marine sediments. Oxygen microelectrodes have revealed that most coastal sediments are covered only by a thin oxic surface layer. The penetration depth of oxygen into sediments is controlled by the balance between downward transport and consumption processes. Consumption of oxygen is directly or indirectly caused by respiration of benthic organisms. Aerobic organisms have the enzymatic capacity for complete oxidation of organic carbon. Anaerobic decay occurs stepwise, involving several types of bacteria. Large organic molecules are first fermented into small moieties. These are then oxidized completely by anaerobic respirers using a sequence of electron acceptors: Mn4+, NO3 -, Fe3+, SO4 2- and CO2. The quantitative role of each electron acceptor depends on the sediment type and water depth. Since most of the sediment oxygen uptake is due to reoxidation of reduced metabolites, aerobic respiration is of limited importance. It has been suggested that sediments contain three major organic fractions: (1) fresh material that is oxidized regardless of oxygen conditions; (2) oxygen sensitive material that is only degraded in the presence of oxygen; and (3) totally refractory organic matter. Processes occurring at the oxic/anoxic boundaries are controlled by a number of factors. The most important are: (1) temperature, (2) organic supply, (3) light, (4) water currents, and (5) bioturbation. The role of bioturbation is important because the infauna creates a three-dimensional mosaic of oxic/anoxic interfaces in sediments. The volume of oxic burrow walls may be several times the volume of oxic surface sediment. The infauna increases the capacity, but not the overall organic matter decay in sediments, thus decreasing the pool of reactive organic matter. The increase in decay capacity is partly caused by injection of oxygen into the sediment, and thereby enhancing the decay of old, oxygen sensitive organic matter several fold. Finally, some future research directions to improve our understanding of diagenetic processes at the oxic/anoxic interface are suggested.

Key words

oxic/anoxic interfaces diagenesis carbon oxygen bioturbation irrigation 
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References

  1. Aller, J.Y. & R.C. Aller, 1986. Evidence for localized enhancement of biological activity associated with tube and burrow structures in deep-sea at the HEBBLE site western North Atlantic. Deep Sea Res. 33: 755–790.CrossRefGoogle Scholar
  2. Aller, R.C., 1982. The effects of macrobenthos on chemical properties of marine sediment and overlying water. In McCall, P.L. & P.J.S. Tevesz (eds), Animal-Sediment Relations. Plenum, New York: 53–102.Google Scholar
  3. Aller, R.C., 1983. The importance of the diffusive permeability of animal burrow linings in determining marine sediment chemistry. J. mar. Res. 41: 299–322.CrossRefGoogle Scholar
  4. Aller, R.C., 1990. Bioturbation and manganese cycling in hemipelagic sediments. Phil. Trans. r. Soc, Lond. A 331: 51–68.CrossRefGoogle Scholar
  5. Aller, R.C. & J.Y. Aller, 1998. The effect of biogenic irrigation intensity and solute exchange on diagenetic reaction rates in marine sediments. J. mar. Res. 56: 905–936.CrossRefGoogle Scholar
  6. Aller, R.C. & J.Y. Yingst, 1978. Biogeochemistry of tubedwellings: a study of the sedentary polychaete Amphitrite ornata (Leidy). J. mar. Res. 36: 201–254.Google Scholar
  7. Andersen, F. O., 1996. Fate of organic carbon added as diatom cells to oxic and anoxic marine sediment microcosms. Mar. Ecol. Prog. Ser. 134: 225–233.CrossRefGoogle Scholar
  8. Andersen, F. ø. & E. Kristensen, 1988. The influence of macrofauna on estuarine benthic community metabolism — a microcosm study. Mar. Biol. 99: 591–603.CrossRefGoogle Scholar
  9. Archer, D., S. Emerson & C.R. Smith, 1989. Direct measurement of the diffusive sublayer at the deep sea floor using oxygen microelectrodes. Nature 340: 623–626.CrossRefGoogle Scholar
  10. Austin, B., 1988. Marine Microbiology. Cambridge Univ. Press, Cambridge. 222 pp.Google Scholar
  11. Banta, G.T., A.E. Giblin, J.E. Hobbie & J. Tucker, 1995. Benthic respiration and nitrogen release in Buzzards Bay, Massachusetts. J. mar. Res. 53: 107–135.CrossRefGoogle Scholar
  12. Banta, G.T., M. Holmer, M.H. Jensen & E. Kristensen, 1999. The effects of two polychaete worms, Nereis diversicolor and Arenicola marina, on aerobic and anerobic decomposition in a sandy marine sediment. Aquat. Microb. Ecol. 19: 189–204.CrossRefGoogle Scholar
  13. Benner, R., A.E. Maccubbin & R.E. Hodson, 1984. Preparation, characterization and microbial degradation of specifically radiolabelled [14C] lignocelluloses from marine and freshwater macrophytes. Apl. envir. Microbiol. 47: 381–389.Google Scholar
  14. Berner R.A., 1980. Early Diagenesis, a Theoretical Approach. Princeton University Press, New Jersey: 241 pp.Google Scholar
  15. Brandes, J.A. & A.H. Devol, 1995. Simultaneous nitrate and oxygen respiration in coastal sediments: evidence for discrete diagenesis. J. mar. Res. 53: 771–797.CrossRefGoogle Scholar
  16. Cai, W.-J. & C.E. Reimers, 1995. Benthic oxygen flux, bottom water oxygen concentration and core top organic carbon content in the deep northeast Pacific Ocean. Deep Sea Res. I 42: 1681–1699.CrossRefGoogle Scholar
  17. Calvert, S.E. & T.F. Pedersen, 1992. Organic carbon accumulation and preservation in marine sediments: how important is anoxia? In Whelan, J.K. & J.W. Farrington (eds), Organic Matter: Productivity, Accumulation and Preservation in Recent and Ancient Sediments. Columbia Univ. Press, New York: 231–263.Google Scholar
  18. Canfield, D.E., 1989. Sulfate reduction and oxic respiration in marine sediments: implications for organic carbon preservation in euxinic environments. Deep-Sea Res. 36: 121–138.CrossRefGoogle Scholar
  19. Canfield, D.E., 1994. Factors influencing organic carbon preservation in marine sediments. Chem. Geol. 114: 315–329.PubMedCrossRefGoogle Scholar
  20. Canfield, D.E., B.B. Jørgensen, H. Fossing, R. Glud, J. Gundersen, N.B. Ramsing, B. Thamdrup, J.W. Hansen, L.P. Nielsen & P.O.J. Hall, 1993a. Pathways of organic carbon oxidation in three continental margin sediments. Mar. Geol. 113: 27–40.PubMedCrossRefGoogle Scholar
  21. Canfield, D.E., B. Thamdrup & J.W. Hansen, 1993b. The anaerobic degradation of organic matter in Danish coastal sediments: iron reduction, manganese reduction and sulfate reduction. Geochim. Cosmochim. Acta 57: 3867–3884.PubMedCrossRefGoogle Scholar
  22. Chanton, J.P., C.S. Martens & M.B. Goldhaber, 1987. Biogeochemical cycling in an organic-rich coastal marine basin. 7. Sulfur mass balance, oxygen uptake and sulfide retention. Geochim. Cosmochim. Acta 51: 1187–1199.Google Scholar
  23. Christensen, B., A. Vedel & E. Kristensen, 1999. Carbon and nitrogen fluxes in sediment inhabited by suspension-feeding (Nereis diversicolor) and non suspension-feeding (Nereis virens) polychaetes. Mar. Ecol. Prog. Ser. (in press).Google Scholar
  24. Colijn, F. & V.N. de Jonge, 1984. Primary production of microphytobenthos in the Ems-Dollard estuary. Mar. Ecol. Prog. Ser. 14: 185–196.CrossRefGoogle Scholar
  25. Davey, J.T., 1994. The architecture of the burrow of Nereis diversicolor and its quantification in relation to sediment-water exchange. J. exp. mar. Biol. Ecol. 179: 115–129.CrossRefGoogle Scholar
  26. Defretin, R., 1971. The tubes of polychaete annelids. In Florkin, M. & E.H. Stotz (eds), Comprehensive Biochemistry, Vol. 26.2. Elsevier, Amsterdam: 713–747.Google Scholar
  27. Van Duyl, F.C., A.J. Kop, A. Kok & A.J.J. Sandee, 1992. The impact of organic matter and macrozoobenthos on bacterial and oxygen variables in marine sediment boxcosms. Neth. J. Sea Res. 29: 343–355.CrossRefGoogle Scholar
  28. Fenchel, T., 1996a. Worm burrows and oxic microniches in marine sediments. 1. Spatial and temporal scales. Mar. Biol. 127: 289–295.Google Scholar
  29. Fenchel, T., 1996b. Worm burrows and oxic microniches in marine sediments. 2. Distribution patterns of ciliated protozoa. Mar. Biol. 127: 297–301.Google Scholar
  30. Fenchel, T & T.H. Blackburn, 1979. Bacteria and Mineral Cycling, Academic Press, London: 225 pp.Google Scholar
  31. Fenchel, T., G.M. King & T.H. Blackburn, 1998. Bacterial Biogeochemistry: the Ecophysiology of Mineral Cycling. Academic Press, San Diego: 307 pp.Google Scholar
  32. Forster, S & G. Graf, 1995. Impact of irrigation on oxygen flux into the sediment: intermittent pumping by Callianassa subterranea and ‘piston pumping’ by Lattice conchilega. Mar. Biol. 123: 335–346.CrossRefGoogle Scholar
  33. Fossing, H. & B.B. Jørgensen, 1989. Measurement of bacterial sulfate reduction in sediments: evaluation of a single-step chromium reduction. Biogeochemistry 8: 205–222.CrossRefGoogle Scholar
  34. Froelich P.N., G. Klinkhammer, M.L. Bender, N.A. Luedtke, G.R. Heath, D. Cullen, P. Dauphin, D. Hammond & B. Hartman, 1979. Early oxidation of organic matter in pelagic sediments of the eastern equatorial Atlantic: suboxic diagenesis. Geochim. Cosmochim. Acta 43: 1075–1095.CrossRefGoogle Scholar
  35. Glud, R.N., J.K. Gundersen, B.B. Jørgensen, N.P. Revsbech & H.D. Schulz, 1994. Diffusive and total oxygen uptake of deepsea sediments in the eastern South Atlantic Ocean: in situ and laboratory measurements. DeepSea Res. I 41: 1767–1788.CrossRefGoogle Scholar
  36. Glud, R.N., N.B. Ramsing, J.K. Gundersen & I. Klimant, 1996. Planar optrodes: a new tool for fine scale measurements of twodimensional O2 distribution in benthic communities. Mar. Ecol. Prog. Ser. 140: 217–226.CrossRefGoogle Scholar
  37. Gundersen, J.K. & B.B. Jørgensen, 1990. Microstructure of diffusive boundary layers and the oxygen uptake of the sea floor. Nature 345: 604–607.CrossRefGoogle Scholar
  38. Gust, G. & J.T. Harrison, 1981. Biological pumps at the sedimentwater interface: mechanistic evaluation of the alpheid shrimp Alpheus mackayi and its irrigation pattern. Mar. Biol. 64: 71–78.CrossRefGoogle Scholar
  39. Hansen, L.S. & T.H. Blackburn, 1991. Aerobic and anaerobic mineralization of organic material in marine sediment microcosms. Mar. Ecol. Prog. Ser. 75: 283–291.CrossRefGoogle Scholar
  40. Hansen, L.S. & T.H. Blackburn, 1992. Mineralization budgets in sediment microcosms: effect of the infauna and anoxic conditions. FEMS Microbiol. Ecol. 102: 33–43.CrossRefGoogle Scholar
  41. Hansen, K. & E. Kristensen, 1997. Impact of macrofaunal recolonization on benthic metabolism and nutrient fluxes in a shallow marine sediment previously overgrown with macroalgal mats. Estuar. coast. shelf Sci. 45: 613–628.CrossRefGoogle Scholar
  42. Hartnett, H.E., R.G. Keil, J.I. Hedges & A.H. Devol, 1998. Influence of oxygen exposure time on organic carbon preservation in continental margin sediments. Nature 391: 572–574.CrossRefGoogle Scholar
  43. Harvey, H.R., J.H. Tuttle & J.T. Bell, 1995. Kinetics of phytoplankton decay during simulated sedimentation: changes in biochemical composition and microbial activity under oxic and anoxic conditions. Geochim. Cosmochim. Acta 59: 3367–3378.CrossRefGoogle Scholar
  44. Hedges, J.I. & R.G. Keil, 1995. Sedimentary organic matter preservation: an assessment and speculative synthesis. Mar. Chem. 49: 81–115.CrossRefGoogle Scholar
  45. Henrichs, S.M. & W.S. Reeburgh, 1987. Anaerobic mineralization of marine sediment organic matter: rates and the role of anaerobic processes in the oceanic carbon economy. Geomicrobiol. J. 5: 191–237.CrossRefGoogle Scholar
  46. Henriksen, K. & W.M. Kemp, 1988. Nitrification in estuarine and coastal marine sediments. In Blackburn, T.H. & J. Sørensen (eds), Nitrogen Cycling in Coastal Marine Environments. John Wiley & Sons Ltd., Chichester: 207–249.Google Scholar
  47. Hertweck, G., 1986. Burrows of the polychaete Nereis virens Sars. Senckenberg. marit. 17: 319–331.Google Scholar
  48. Howarth, R.W., 1984. The ecological significance of sulfur in the energy dynamics of salt marsh and coastal marine sediments. Biogeochemistry 1: 5–27.CrossRefGoogle Scholar
  49. Huettel, M. & G. Gust, 1992a. Impact of bioroughness on interfacial solute exchange in permeable sediments. Mar. Ecol. Prog. Ser. 89: 253–267.CrossRefGoogle Scholar
  50. Huettel, M. & G. Gust, 1992b. Solute release mechanisms from confined sediment cores in stirred benthic chambers and flume flows. Mar. Ecol. Prog. Ser. 82: 187–197.CrossRefGoogle Scholar
  51. Hulthe, G., S. Hulth & P.O.J. Hall, 1998. Effect of oxygen on degradation rate of refractory and labile organic matter in continental margin sediments. Geochim. Cosmochim. Acta 62: 1319–1328.CrossRefGoogle Scholar
  52. Hylleberg, J. & K. Henriksen, 1980. The central role of bioturbation in sediment mineralization and element re-cycling. Ophelia, Suppl. 1: 1–16.Google Scholar
  53. Jahnke, R., 1985. A model of microenvironments in deep-sea sediments: formation and effects on porewater profiles. Limnol. Oceanogr. 30: 956–965.Google Scholar
  54. Jensen, K., N.P. Revsbech & L.P. Nielsen, 1993. Microscale distribution of nitrification activity in sediment determined with a shielded microsensor for nitrate. Apl. envir. Microbiol. 59: 3287–3296.Google Scholar
  55. Jørgensen, B.B., 1977. Bacterial sulfate reduction within reduced microniches of oxidized marine sediments. Mar. Biol. 41: 7–17.CrossRefGoogle Scholar
  56. Jørgensen, B.B., 1983. Processes at the sediment-water interface. In Bolin, B. & R.B. Cook (eds), The Major Biogeochemical Cycles and Their Interactions. SCOPE 21, Stockholm: 477–509.Google Scholar
  57. Jørgensen, B.B., 1989. Biogeochemistry of chemoautotrophic bacteria. In Schlegel, H.G. & B. Bowien (eds), Autotrophic Bacteria. Science Tech Publ. & Springer-Verlag, Madison: 117–146.Google Scholar
  58. Jørgensen, B.B., 1996. Material flux in the sediment. In Jørgensen, B.B. & K. Richardson (eds), Eutrophication in Coastal Marine Ecosystems (Coastal and Estuarine Studies 52). American Geophysical Union, Washington DC: 115–135.CrossRefGoogle Scholar
  59. Jørgensen, B.B. & N.P. Revsbech, 1983. Colorless sulfur bacteria Beggiatoa spp. and Thiovulum spp. in O2 and H2S microgradients. Apl. envir. Microbiol. 45: 1261–1270.Google Scholar
  60. Jørgensen, B.B. & N.P. Revsbech, 1985. Diffusive boundary layers and the oxygen uptake of sediments and detritus. Limnol. Oceanogr. 30: 111–122.CrossRefGoogle Scholar
  61. Jørgensen, B.B. & J. Sørensen, 1985. Seasonal cycles of O2, NO3 - and SO4 2- reduction in estuarine sediments: the significance of a NO3 - reduction maximum in spring. Mar. Ecol. Prog. Ser. 24: 65–74.CrossRefGoogle Scholar
  62. Keil, R.G., D.B. Montlucon, F.G. Prahl & J.I. Hedges, 1994. Sorptive preservation of labile organic matter in marine sediments. Nature 370: 549–552.CrossRefGoogle Scholar
  63. Kemp, W.M., P.A. Sampou, J. Garber, J. Tuttle & W.R. Bounton, 1992. Seasonal depletion of oxygen from bottom waters of Chesapeake Bay: roles of benthic and planktonic respiration and physical exchange processes. Mar. Ecol. Prog. Ser. 85: 137–152.CrossRefGoogle Scholar
  64. Kikuchi, E., 1987. Effect of the brackish deposit-feeding polychaetes Notomastus sp. (Capitellidae) and Neanthes japonica (Izuka) (Nereidae) on sedimentary O2 consumption and CO2 production rates. J. exp. mar. Biol. Ecol. 114: 15–25.Google Scholar
  65. Klimant, I., V. Meyer & M. Kühl, 1995. Fiber-optic oxygen microsensors, a new tool in aquatic biology. Limnol. Oceanogr. 40: 1159–1165.CrossRefGoogle Scholar
  66. Kristensen, E., 1984. Effect of natural concentrations on exchange of nutrients between a polychaete burrow in estuarine sediment and overlying water. J. exp. mar. Biol. Ecol. 75: 171–190.CrossRefGoogle Scholar
  67. Kristensen, E., 1985. Oxygen and inorganic nitrogen exchange in a Nereis virens (Polychaeta) bioturbated sediment-water system. J. Coast. Res. 1: 109–116.Google Scholar
  68. Kristensen, E., 1988. Benthic fauna and biogeochemical processes in marine sediments: microbial activities and fluxes. In Black-burn, T.H. & J. Sørensen (eds), Nitrogen Cycling in Coastal Marine Environments. John Wiley & Sons Ltd., Chichester: 275–299.Google Scholar
  69. Kristensen, E., 1989. Oxygen and carbon dioxide exchange in the polychaete Nereis virens: influence of ventilation activity and starvation. Mar. Biol. 101: 381–388.CrossRefGoogle Scholar
  70. Kristensen, E., 1993. Seasonal variations in benthic community metabolism and nitrogen dynamics in a shallow, organic poor Danish lagoon. Estuar. coast. shelf. Sci. 36: 565–586.CrossRefGoogle Scholar
  71. Kristensen, E., S.I. Ahmed & A.H. Devol, 1995. Aerobic and anaerobic decomposition of organic matter in marine sediment: which is fastest? Limnol. Oceanogr. 40: 1430–1437.Google Scholar
  72. Kristensen, E., R.C. Aller & J.Y. Aller, 1991b. Oxic and anoxic decomposition of tubes from the burrowing sea-anemone Ceriantheopsis americanus: implications for sediment carbon and nitrogen dynamics. J. mar. Res. 49: 589–617.CrossRefGoogle Scholar
  73. Kristensen, E., F. Ø.Andersen & T.H. Blackburn, 1992. Effects of benthic macrofauna and temperature on degradation of macroalgal detritus: the fate of organic carbon. Limnol. Oceanogr. 37: 1404–1419.CrossRefGoogle Scholar
  74. Kristensen, E. & T.H. Blackburn, 1987. The fate of organic carbon and nitrogen in experimental marine sediment systems: influence of bioturbation and anoxia. J. mar. Res. 45: 231–257.CrossRefGoogle Scholar
  75. Kristensen, E. & K. Hansen, 1995. Decay of plant detritus in organic-poor marine sediment: production rates and stoichiometry of dissolved C and N compounds. J. mar. Res. 53: 675–702.CrossRefGoogle Scholar
  76. Kristensen, E. & K. Hansen, 1999. Transport of carbon dioxide and ammonium in bioturbated (Nereis diversicolor) coastal, marine sediments. Biogeochemistry 45: 147–168.Google Scholar
  77. Kristensen, E., M.H. Jensen & T.K. Andersen, 1985. The impact of polychaete (Nereis virens Sars) burrows on nitrification and nitrate reduction in estuarine sediments. J. exp. mar. Biol. Ecol. 85: 75–91.CrossRefGoogle Scholar
  78. Kristensen, E., M.H. Jensen & R.C. Aller, 1991a. Direct measurement of dissolved inorganic nitrogen exchange and denitri-fication in individual polychaete Nereis virens burrows. J. mar. Res. 49: 355–377.CrossRefGoogle Scholar
  79. Kristensen, E., M.H. Jensen & K.M. Jensen, 1998. Sulfur dynamics in sediments of Königshafen. In Gätje, C. & K. Reise (eds), Ökosystem Wattenmeer — Austausch-, Transport-und Stoffumwandlungsprozesse. Springer-Verlag, Berlin: 233–256.Google Scholar
  80. Kü hl, M. & B.B. Jørgensen, 1994. The light field of microbenthic communities: radiance distribution and microscale optics of sandy coastal sediments. Limnol. Oceanogr. 39: 1368–1398.CrossRefGoogle Scholar
  81. Lee, C., 1992. Controls on organic carbon preservation: the use of stratified water bodies to compare intrinsic rates of decomposition in oxic and anoxic systems. Geochim. Cosmochim. Acta 56: 3323–3335.CrossRefGoogle Scholar
  82. Mackin, J.E. & K.T. Swider, 1989. Organic matter decomposition pathways and oxygen consumption in coastal marine sediments. J. mar. Res. 47: 681–716.CrossRefGoogle Scholar
  83. Mayer, L.M., 1994. Surface area control of organic carbon accumulation in continental shelf sediments. Geochim. Cosmochim. Acta 58: 1271–1284.CrossRefGoogle Scholar
  84. Mayer, M.S., L. Schaffner & W.M. Kemp, 1995. Nitrification potentials of benthic macrofaunal tubes and burrow walls: effects of sediment NH44 + and animal irrigation behavior. Mar. Ecol. Prog. Ser. 121: 157–169.CrossRefGoogle Scholar
  85. Moller, J.S., 1996. Water masses, stratification and circulation. In Jørgensen, B.B. & K. Richardson (eds), Eutrophication in Coastal Marine Ecosystems (Coastal and Estuarine Studies 52). American Geophysical Union, Washington DC: 51–66.CrossRefGoogle Scholar
  86. Nielsen, L. R, 1992. Denitrification in sediment determined from nitrogen isotope pairing. FEMS Microbiol. Ecol. 86: 357–362.CrossRefGoogle Scholar
  87. Rasmussen, H. & B.B. Jørgensen, 1992. Microelectrode studies of seasonal oxygen uptake in a coastal sediment: role of molecular diffusion. Mar. Ecol. Prog. Ser. 81: 289–303.CrossRefGoogle Scholar
  88. Reichardt, W., 1988. Impact of bioturbation by Arenicola marina on microbiological parameters in intertidal sediments. Mar. Ecol. Prog. Ser. 44: 149–158.CrossRefGoogle Scholar
  89. Reimers, C.E., 1987. An in situ microprofiling instrument for measuring interfacial pore water gradients: methods and oxygen profiles from the North Pacific Ocean. Deep Sea Res. 34: 2019–2035.CrossRefGoogle Scholar
  90. Reimers, C.E., K.M. Fischer, R. Merewether, K.L. Smith Jr. & R.A. Jahnke, 1986. Oxygen microprofiles measured in situ in deep ocean sediments. Nature 320: 741–744.CrossRefGoogle Scholar
  91. Reise, K., 1981. High abundance of small zoobenthos around biogenic structures in tidal sediments of the Wadden Sea. Hel-golënder wiss. Meeresunters. 34: 413–425.CrossRefGoogle Scholar
  92. Revsbech, N.P., 1989. An oxygen microsensor with a guard cathode. Limnol. Oceanogr. 34: 474–478.CrossRefGoogle Scholar
  93. Revsbech, N.P. & B.B. Jørgensen, 1986. Microelectrodes: Their use in microbial ecology. Adv. Microb. Ecol. 9: 293–352.Google Scholar
  94. Revsbech, N.P., B.B. Jørgensen, T.H. Blackburn & Y. Cohen, 1983. Microelectrode studies of the photosynthesis and O2, H2S and pH profiles of a microbial mat. Limnol. Oceanogr. 28: 1062–1074.CrossRefGoogle Scholar
  95. Revsbech, N.P., B.B. Jørgensen & O. Brix, 1981. Primary production in sediments measured by oxygen microprofiles H14CO3 1- fixation, and oxygen exchange methods. Limnol. Oceanogr. 26: 717–730.CrossRefGoogle Scholar
  96. Revsbech, N.P., B. Madsen & B.B. Jørgensen, 1986. Oxygen production and consumption in sediments determined at high spatial resolution by computer simulation of oxygen microelectrode data. Limnol. Oceanogr. 31: 293–304.CrossRefGoogle Scholar
  97. Revsbech, N.P., J. Sørensen, T.H. Blackburn & J.P. Lomholt, 1980. Distribution of oxygen in marine sediments measured with microelectrodes. Limnol. Oceanogr. 25: 403–411.CrossRefGoogle Scholar
  98. Revsbech, N.P. & D.M. Ward, 1983. Oxygen microelectrode that is insensitive to medium chemical composition: use in an acid microbial mat dominated by Cyanidium caldarium. Apl. envir. Microbiol. 45: 755–759.Google Scholar
  99. Riisgård, H.U., 1991. Suspension feeding in the polychaete Nereis diversicolor. Mar. Ecol. Prog. Ser. 70: 29–37.CrossRefGoogle Scholar
  100. Santschi, P.H., P. Bower, U.P. Nyffeler, A. Azvedo & W.S. Broecker, 1983. Estimates of the resistance of chemical transport posed by the deep-sea boundary layer. Limnol. Oceanogr. 28: 899–912.CrossRefGoogle Scholar
  101. Schink, B., 1988. Principles and limits of anaerobic degradation: Environmental and technological aspects. In Zehnder, A.J.B. (ed.), Biology of Anaerobic Microorganisms. John Wiley & Sons Ltd., New York: 771–846.Google Scholar
  102. Schlü ter, M., 1991. Organic carbon flux and oxygen penetration into sediments of the Weddell Sea: indicators for regional differences in export production. Mar. Chem. 35: 569–579.CrossRefGoogle Scholar
  103. Smith, K.L., Jr. & R.J. Baldwin, 1984. Seasonal fluctuations in deep-sea sediment community oxygen consumption: central and eastern North Pacific. Nature 307: 624–625.CrossRefGoogle Scholar
  104. Stigebrandt, A. & F. Wulff, 1987. A model for the dynamics of nutrients and oxygen in the Baltic proper. J. mar. Res. 45: 729–759.CrossRefGoogle Scholar
  105. Suess, E., 1980. Particulate organic carbon flux in the oceans — surface productivity and oxygen utilization. Nature 288: 260–263.CrossRefGoogle Scholar
  106. Sun, M.-Y, C. Lee & R.C. Aller, 1993b. Anoxic and oxic degradation of 14C-labeled chloropigments and a 14C-labeled diatom in Long Island Sound sediments. Limnol. Oceanogr. 38: 1438–1451.CrossRefGoogle Scholar
  107. Sun, M.-Y, C. Lee & R.C. Aller, 1993a. Laboratory studies of oxic and anoxic degradation of chlorophyll-a in Long Island Sound sediments. Geochim. Cosmochim. Acta 57: 147–158.CrossRefGoogle Scholar
  108. Sun, M.-Y., S.G. Wakeham & C. Lee, 1997. Rates and mechanisms of fatty acid degradation in oxic and anoxic coastal marine sediments of Long Island Sound, New York, U.S.A. Geochim. Cosmochim. Acta 61: 341–356.CrossRefGoogle Scholar
  109. Thamdrup, B, H. Fossing & B.B. Jørgensen, 1994. Manganese, iron and sulfur cycling in a coastal marine sediment, Aarhus Bay, Denmark. Geochim. Cosmochim. Acta 58: 5115–5130.CrossRefGoogle Scholar
  110. Thamdrup, B., J.W. Hansen & B.B. Jørgensen, 1998. Temperature dependence of aerobic respiration in a coastal sediment. FEMS Microbiol. Ecol. 25: 189–200.Google Scholar
  111. Vetter, E.F. & C.S. Hopkinson, Jr., 1985. Influence of white shrimp (Penaeus setiferus) on benthic metabolism and nutrient flux in a coastal marine ecosystem: Measurements in situ. Contr. Mar. Sci. 28: 95–107.Google Scholar
  112. Westrich, J.T. & R.A. Berner, 1984. The role of sedimentary organic matter in bacterial sulfate reduction: the G model tested. Limnol. Oceanogr. 29: 236–249.CrossRefGoogle Scholar
  113. Wetzel, M.A., P. Jensen & O. Giere, 1995. Oxygen/sulfide regime and nematode fauna associated with Arenicola marina burrows: new insights in the thiobios case. Mar. Biol. 124: 301–312.CrossRefGoogle Scholar
  114. Ziebis, W., S. Forster, M. Huettel & B.B. Jørgensen, 1996. Complex burrows of the mud shrimp Callianassa truncata and their geochemical impact in the sea bed. Nature 382: 619–622.CrossRefGoogle Scholar

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© Springer Science+Business Media Dordrecht 2000

Authors and Affiliations

  • Erik Kristensen
    • 1
  1. 1.Institute of BiologyOdense University, SDUOdense MDenmark

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