Abstract
Results of a chemical and geochemical study of the Oslofjord system are presented to explore the possibility of qualitatively identifying a eutrophication gradient. Nutrient concentration and dissolved oxygen may indicate such a gradient in areas of similar hydrographies. Uncertainties due to minor differences in hydrography may be resolved by considering sedimentary organic carbon, C:N ratios and the accumulation of mineralisation products in the sediment pore water. The reliability of the sedimentary organic matter and the pore water composition as gradient indicators can be impaired by input of terrestrial organics, dispersal of mineralisation products by the benthic fauna or the apparent high levels of organic carbon and pore water nutrients in the absence of the benthic fauna under anoxic conditions.
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References
Ben-Yaakov, S., 1973. pH buffering of pore water of recent anoxic sediment. Limnol. Oceanogr. 18: 86–94.
Blackburn, T. H., 1987. Microbial food web in sediments. In M. A. Sleigh & E. Horwood (eds) Microbes in the Sea. J. Wiley & Sons, Chichester: 39–58.
Degens, E. T., 1969. Biogeochemistry of stable carbon isotopes. In G. Eglington & M. T. J. Murphy(eds) Organic Geochemistry. Springer, Berlin, 304 pp.
Elmgren, R., 1989. The eutrophication status of the Baltic Sea: Input of nitrogen and phosphorus, their availability for plant production. Baltic Sea Environment Proceedings, Helsinki, 30: 12–31.
Ertel, J. R. & J. I.Hedges, 1983. Bulk chemical and spectroscopic properties of marine and terrestrial humic acids, melanoidins and catechol-based synthetic polymers. In R. F.Christman & E. T. Gjessing (eds), Aquatic and Terrestrial Humic Material, Ann Arbor Science, 143–163.
Gade, H. G., 1968. Horizontal and vertical exchange and diffusion in the water masses of the Oslofjord. Helgolander wiss. Meeresunters. 17: 462–475.
GESAMP, 1990. The State of the Marine Environment. United Nations Environment Programme. UNEP Regional Seas Reports and Studies. No. 115: 1–111.
Graf, G., W. Bengtsson, U. Diesner, R. Schultz & H.Theede, 1982. Benthic response to sedimentation of a spring phytoplankton bloom; process and budget. Mar. Biol. 67: 201–208.
Gray, J. S., 1982. Pollution effects on marine ecosystems. Neth. J. Sea Res. 16: 424–443.
Grebmeier, J. M., C. P. McRoy & H. M.Feder, 1988. Pelagic-benthic coupling on the shelf of the northern Bering and Chukchi Seas. I. Food supply source and benthic biomass. Mar. Ecol. Prog. Ser. 48: 57–67.
Hedges, J. I., W. A. Clark & G. L. Cowie, 1988. Organic matter sources to the water column and surficial sediments of a marine bay. Limnol. Oceanogr. 33: 1116–1136.
Justic, D., 1987. Long-term eutrophication of the northern Adriatic Sea. Mar. Pollut. Bull. 18: 281–284.
Jørgensen, B. B., M. Bang & T. H. Blackburn, 1990. Anaerobic mineralisation in marine sediments from the Baltic Sea — North Sea transition. Mar. Ecol. Prog. Ser. 59: 39–54.
Knauer, G. A., J. A. Martin & K. W. Bruland, 1979. Fluxes of particulate carbon, nitrogen and phosphorus in the upper water column of the northeast Pacific. Deep Sea Res. 26: 97–108.
Larsson, U., R. Ehngren & F. Wulff, 1985. Eutrophication and the Baltic Sea: Causes and consequences. Ambio 14: 9–14.
Lund, B. Aa., T. H. Blackburn & K. Henriksen, 1991. Aspects of nitrogen and carbon cycling in the northern Bering shelf sediment: 1. The significance of urea turnover in the mineralisation NHf4 p+. Mar. Ecol. Progr. Ser. (In Press).
McNichol, A. P., Cindy Lee & E. R. M. Druffel, 1988. Carbon cycling in coastal sediments: 1. A quantitative estimate of the mineralisation of organic carbon in the sediments of Buzzards Bay, MA. Geochim. Cosmochim. Acta, 52: 1531–1543.
Mirza, F. B. & J. S. Gray, 1978. The fauna of benthic sediments from organically enriched Oslofjord, Norway. J. exp. mar. Biol. Ecol. 54: 181–207.
Nehring, D., 1979. Relationships between salinity and increasing nutrient concentration in the mixed winter surface layer of the Baltic from 1969 to 1979. ICES C.M. 1979/C: 24: 1–8.
Nehring, D., G. Ærteberg, P. Alenius, V. Astok, S. Fonselius, M. Hannus, V. Tervo, A. Troszinska, P. Tulkki & A. K. Yurkovskis, 1987. Nutrients. In J. Lassig (ed.), First Periodic Assessment of the State of the Marine Environment of the Baltic Sea Area, 1980–1985; Background Document. Baltic Sea Environm. Proc. 20: 1–56.
Nixon, S. U., 1990. Marine eutrophication: A growing international problem. Ambio 19: 101.
Otsuki, A. & T. Hanga, 1972. Production of dissolved organic matter from dead green algal cells. II. Anaerobic microbial decomposition. Limnol. Oceanogr. 17: 248–257.
Pearson, T. H. & R. Rosenberg, 1978. Macrobenthic succession in relation to organic enrichment and pollution of the marine environment. Oceanogr. Mar. Biol. Ann. Rev. 16: 229–311.
Pearson, T. H., A. B. Josefson & R. Rosenberg, 1985. Petersen's stations revisited. I. Is the Kattegat becoming eutrophic? J. exp. mar. Biol. Ecol. 92: 157–206.
Redfield, A. C., B. H. Ketchum & F. A. Richard, 1963. The influence of organisms on the composition of seawater. In M. N. Hill (ed.) The Sea, Vol. 2, Wiley-Interscience, N.Y.: 26–77.
Richards, F. A., 1965. Anoxic basins and fjords. In J. P. Riley & G. Skirrow (eds), Chemical Oceanography. Vol. 1, Academic Press, N.Y.: 611–645.
Rosenberg, R., J. S. Gray, A. B. Josefson & T. H. Pearson, 1987. Petersen's benthic stations revisited. II. Is the Oslofjord and eastern Skagerrak enriched? J. exp. mar. Biol. Ecol. 105: 219–251.
Rosenberg, R., R. Elmgren, S. Fleischer, P. Jonsson, G. Presson & H. Dahlin, 1990. Marine eutrophication case studies in Sweden. Ambio 19: 102–108.
Rydberg, L., L. Edler, S. Floderus & W. Graneli, 1990. Interaction between supply of nutrients, primary production, sedimentation and oxygen consumption in SE Kattegat. Ambio, 19: 134–141.
Ryther, J. H. & W. M. Dunstan, 1971. Nitrogen, phosphorus and eutrophication in the coastal marine environment. Science 171: 1008–1013.
UNESCO, 1984. Eutrophication in coastal marine areas and lagoons: a case study of ‘Lac de Tunis’. UNESCO Reports in Marine Science No. 29.
UNESCO, 1988. Eutrophication in the Mediterranean Sea: Receiving capacity and monitoring of long term effects. Proceedings of a Scientific Workshop, Bologna 2–6 March 1987. UNESCO Reports in Marine Science No. 49.
Valiela, I., 1984. Marine Ecological Processes. Springer Verlag, N.Y., 546 pp.
Walsh, J. J., E. T. Prmuzic & T. E. Whitledge, 1981. Fate of nutrient enrichment of continental shelves as indicated by the C/N of bottom sediments. In J. C. J. Nihoul (ed.), Ecohydrodynamics. Elsevier Sci. Publ., Amsterdam: 13–50.
Wassmann, P., 1990. Relationship between primary and export production in the boreal coastal zone of the North Atlantic. Limnol. Oceanogr. 35: 464–471.
Wulff, F. & L. A. Rahn, 1988. Long-term, seasonal and spatial variation of nitrogen, phosphorus and silicate in the Baltic: An overview. Mar. Environ. Res. 26: 19–37.
Wulff, F., G. Ærtebjerg, G. Nicolaus, Å. Niemi, P.Ciszevski, S. Schulz & W. Kaiser, 1986. The changing pelagic ecosystem of the Baltic Sea. Ophelia 4: 299–319.
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Abdullah, M.I., Danielsen, M. Chemical criteria for marine eutrophication with special reference to the Oslofjord, Norway. Hydrobiologia 235, 711–722 (1992). https://doi.org/10.1007/BF00026259
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DOI: https://doi.org/10.1007/BF00026259