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Odense Fjord and Kerteminde Fjord/Kertinge Nor

  • H. U. Riisgård
  • M. H. Jensen
  • N. Rask
Part of the Ecological Studies book series (ECOLSTUD, volume 197)

Odense Fjord (Table 16.1) is a shallow Danish fjord affected by freshwater and nutrient discharges from a large catchment area (1,060 km2) dominated by agriculture. In contrast, the nearby Kerteminde Fjord/Kertinge Nor (Table 16.1) is a shallow fjord system with a small catchment area (36 km2) and consequently small freshwater discharges, and where the water exchange and nutrient dynamics are greatly affected by density-driven currents caused by frequently changing salinities in the Great Belt. In both fjord systems, filter-feeding macro-invertebrates play a significant role in the biological structure as will become apparent from the two case studies detailed in this chapter.

Keywords

Dissolve Inorganic Nitrogen Grazing Impact Great Belt Dissolve Inorganic Phosphate Fjord System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Ærtebjerg G, Andersen JH, Hansen OS (eds) (2003) Nutrients and eutrophication in Danish marine waters. A challenge for science and management. National Environmental Research Institute, CopenhagenGoogle Scholar
  2. Borum J (1996) Shallow waters and land/sea boundaries. In: Jørgensen BB, Richardson K (eds) Eutrophication in coastal marine ecosystems. Coastal and estuarine studies, vol 52. American Geophysical Union, Washington DC, pp 179–203Google Scholar
  3. Bonsdorff E, Blomquist EM, Mattila J, Norkko A (1997) Coastal eutrophication: causes, consequences and perspectives in the archipelago areas of the northern Baltic Sea. Estuarine Coast Shelf Sci 44[Suppl A]:63–72CrossRefGoogle Scholar
  4. Christensen B, Vedel A, Kristensen E (2000) Carbon and nitrogen fluxes in sediment inhabited by suspension-feeding (Nereis diversicolor) and non-suspension-feeding (N. virens) polychaetes. Mar Ecol Prog Ser 192:203–217CrossRefGoogle Scholar
  5. Christensen PB, Møhlenberg F, Krause-Jensen D, Jensen HS, Rysgaard S, Clausen P, Schluter L, Josefsen SB, Andersen FØ, Thomassen J, Thomsen MS, Jürgensen C, Møller MM (1994) Stoftransport og omsætning i Kertinge Nor/Kerteminde Fjord (in Danish with English summary). Havforskning fra Miljøstyrelsen. Nr. 43 1992. MiljøstyrelsenGoogle Scholar
  6. Conley DJ, Kaas H, Møhlenberg F, Rasmussen B, Windolf J (2000) Characteristics of Danish Estuaries. Estuaries 23:820–837CrossRefGoogle Scholar
  7. Fyn County (1991) Eutrophication of coastal waters. Coastal water quality management in the county of Funen, Denmark, 1976–1990. Funen County CouncilGoogle Scholar
  8. Fyn County (2001a) Aquatic environment of Fyn, Denmark, 1976–2000. Streams and lakes, coastal waters, groundwater, environmental impact of wastewater and agriculture. Fyn County, Odense, DenmarkGoogle Scholar
  9. Fyn County (2001b) Kystvande 2000 (in Danish). Vandmiljøovervågning. Natur- og Vandmiljøafdelingen, Fyns AmtGoogle Scholar
  10. Fyn County (2002) Kystvande 2001(in Danish). Vandmiljøovervågning. Natur- og Vandmiljøafdelingen, Fyns AmtGoogle Scholar
  11. Fyn County (2003) Odense Pilot River Basin. Provisional Article 5 report pursuant to the Water Framework Directive. Fyn CountyGoogle Scholar
  12. Fyn County (2004) Kystvande 2003 (in Danish). Fyn County CouncilGoogle Scholar
  13. Frandsen K, Riisgård HU (1997) Size dependent respiration and growth of jellyfish (Aurelia aurita). Sarsia 82:307–312Google Scholar
  14. Greve TM, Borum J, Pedersen O (2004) Meristematic oxygen variability in eelgrass (Zostera marina). Limnol Oceanogr 48:210–216CrossRefGoogle Scholar
  15. Hansen K, Kristensen E (1997) Impact of macrofaunal recolonization on benthic metabolism and nutrient fluxes in a shallow marine sediment previously overgrown with macroalgal mats. Estuarine Coastal Mar Sci 45:613–628CrossRefGoogle Scholar
  16. Holmer M, Bondgaard EJ (2001) Photosynthetic and growth response of eelgrass (Zostrea marina) to low oxygen and high sulfide concentrations during hypoxic events. Aquat Bot 70:29–38CrossRefGoogle Scholar
  17. Iversen TM, Grant R, Nielsen K (1998) Nitrogen enrichment of European inland and marine waters with special attention to Danish policy measures. Environ Poll 102:771–780CrossRefGoogle Scholar
  18. Jensen HF, Holmer M, Dahllöf I (2004) Effect of tributyltin (TBT) on Seagrass (Ruppia maritima). Mar Pollut Bull 49:564–573PubMedCrossRefGoogle Scholar
  19. Jürgensen C (1995) Modelling of nutrient release from sediment in a tidal inlet, Kertinge Nor, Funen, Denmark. Ophelia 42:163–178Google Scholar
  20. Krause-Jensen D, McGlathery K, Rysgaard S, Christensen PB (1996) Production within dense mats of the filamentous macroalga Chaetomorpha linum in relation to light and nutrient availability. Mar Ecol Prog Ser 134:207–216CrossRefGoogle Scholar
  21. Kristensen E, Jensen MH, Aller, RC (1991). Direct measurement of dissolved inorganic nitrogen exchange and denitrification in individual polychaete (Nereis virens) burrows. J Mar Res 49:355–377CrossRefGoogle Scholar
  22. Kristensen E, Kristiansen KD, Jensen MH (2003) Temporal behavior of manganese and iron in a sandy coastal sediment exposed to water column anoxia. Estuaries 26:690–699CrossRefGoogle Scholar
  23. Larsen GR, Jürgensen C, Christensen, PB, Olesen NJ, Petersen JK, Jensen JN, Mortensen E, Sortkjær O, Andersen P (1994) Kertinge Nor/Kerteminde Fjord - status og udvikling (in Danish with English summary). Havforskning fra Miljøstyrelsen Nr. 44 1994. MiljøstyrelsenGoogle Scholar
  24. Larsen PS, Riisgård HU (1997) Biomixing generated by benthic filter-feeders: a diffusion model for near-bottom phytoplankton depletion. J Sea Res 37:81–90CrossRefGoogle Scholar
  25. McGlathery KJ, Krause-Jensen D, Rysgaard S, Christensen PB (1997) Patterns of ammonium uptake within dense mats of the filamentous macroalga Chaetomorpha linum. Aquat Bot 59:99–115CrossRefGoogle Scholar
  26. Miron G, Kristensen E (1993) Factors influencing the distribution of nereid polychaetes: the sulfide aspect. Mar Ecol Prog Ser 93:143–153CrossRefGoogle Scholar
  27. Møller JS (1996) Water masses, stratification and circulation. In: Jørgensen BB, Richardson K (eds) Eutrophication in a coastal marine ecosystem. Coastal and Estuarine Studies vol 52. American Geophysical Union, Washington DC, pp 51–66Google Scholar
  28. Møller LF, Riisgård HU (2006) Filter feeding in the burrowing amphipod Corophium volutator. Mar Ecol Prog Ser 322:213–224CrossRefGoogle Scholar
  29. Nielsen AS, Pedersen AW, Riisgård HU (1997) Implications of density driven currents for interaction between jellyfish (Aurelia aurita) and zooplankton in a Danish fjord. Sarsia 82:297–305Google Scholar
  30. Nielsen SL, Sand-Jensen K, Borum J, Geertz-Hansen O (2002) Depth colonization of Eelgrass (Zostrea marina) and macroalgae as determined by water transparency in Danish coastal waters. Estuaries 25:1025–1032CrossRefGoogle Scholar
  31. Nienhuis PH (1996) The North Sea coasts of Denmark, Germany and the Netherlands. In: Schramm W, Nienhuis PH (eds) Marine benthic vegetation. Recent changes and the effects of eutrophication. Ecological Studies, vol 123. Springer, Berlin, pp 187–221Google Scholar
  32. Olesen NJ (1995) Clearance potential of the jellyfish Aurelia aurita, and predation impact on zooplankton in a shallow cove. Mar Ecol Prog Ser 124:63–72CrossRefGoogle Scholar
  33. Olesen NJ, Frandsen K, Riisgård HU (1994) Population dynamics, growth and energetics of jellyfish Aurelia aurita in a shallow fjord. Mar Ecol Prog Ser 105:9–18CrossRefGoogle Scholar
  34. Ostenfeld CH (1908) On the ecology and distribution of the grasswrack (Zostera marina) in Danish waters. Report of the Danish Biological Station to the Board of Agriculture XVI:1–62Google Scholar
  35. Pedersen MF, Borum J (1997) Nutrient control of estuarine macroalgae. Growth strategy and the balance between nitrogen requirements and uptake. Mar Ecol Prog Ser 161:155–163CrossRefGoogle Scholar
  36. Petersen JK, Riisgård HU (1992) Filtration capacity of the ascidian Ciona intestinalis and its grazing impact in a shallow fjord. Mar Ecol Prog Ser 88:9–17CrossRefGoogle Scholar
  37. Plus M, Deslous-Paoli J-M, Dagault F (2003) Seagrass (Zostera marina L.) bed recolonisation after anoxia-induced full mortality. Aquat Bot 77:121–134CrossRefGoogle Scholar
  38. Rask N, Pedersen SE, Jensen MH (1999) Response to lowered nutrient discharges in the coastal waters around the island of Fynen, Denmark. Hydrobiologia 393:69–81CrossRefGoogle Scholar
  39. Rasmussen B, Josefson A (2002). Residence times of micro-tidal estuaries. Estuarine Coast Shelf Sci 54:65–73CrossRefGoogle Scholar
  40. Richardson K (1996) Conclusion, research and eutrophication control. In: Jørgensen BB, Richardson K (eds) Eutrophication in a coastal marine ecosystem. Coastal and Estuarine Studies, vol 52. American Geophysical Union, Washington DC, pp 243–267Google Scholar
  41. Riisgård HU (1991) Suspension feeding in the polychaete Nereis diversicolor. Mar Ecol Prog Ser 70:29–37CrossRefGoogle Scholar
  42. Riisgård HU (1998) Filter feeding and plankton dynamics in a Danish fjord: a review of the importance of flow, mixing, and density-driven circulation. J Environ Manage 53:195–207CrossRefGoogle Scholar
  43. Riisgård HU, Banta GT (1998) Irrigation and deposit feeding by the lugworm Arenicola marina, characteristics and secondary effects on the environment. A review of current knowledge. Vie Milieu Period Ecol Gen 48:243–257Google Scholar
  44. Riisgård HU, Kamermans P (2001) Switching between deposit and suspension feeding in coastal zoobenthos. In: Reise K (ed) Ecological comparisons of sedimentary shores. Ecological studies series. Springer, Berlin, pp 73–101Google Scholar
  45. Riisgård HU, Larsen PS (2005) Water pumping and analysis of flow in burrowing zoobenthos: an overview. Aquat Ecol 39:237–258CrossRefGoogle Scholar
  46. Riisgård HU, Christensen PB, Olesen NJ, Petersen JK, Møller MM, Andersen P (1995) Biological structure in a shallow cove (Kertinge Nor, Denmark)–control by benthic nutrient fluxes and suspension-feeding ascidians and jellyfish. Ophelia 41:329–344Google Scholar
  47. Riisgård HU, Jürgensen C, Andersen FØ (1996a) Case study: Kertinge Nor. In: Jørgensen BB, Richardson K (eds) Eutrophication in coastal marine ecosystems. Coastal and Estuarine Studies, vol 52. American Geophysical Union. Washington DC, pp 205–221Google Scholar
  48. Riisgård HU, Jürgensen C, Clausen T (1996b) Filter-feeding ascidians (Ciona intestinalis) in a shallow cove: implications of hydrodynamics for grazing impact. J Sea Res 35:293–300CrossRefGoogle Scholar
  49. Riisgård HU, Poulsen L, Larsen PS (1996c) Phytoplankton reduction in near-bottom water caused by filter-feeding Nereis diversicolor–implications for worm growth and population grazing impact. Mar Ecol Prog Ser 141:47–54CrossRefGoogle Scholar
  50. Riisgård HU, Jensen AS, Jürgensen C (1998) Hydrography, near-bottom currents and grazing impact of benthic filter-feeding ascidians (Ciona intestinalis) in a Danish fjord. Ophelia 49:1–16Google Scholar
  51. Riisgård HU, Kittner C, Seerup DF (2003) Regulation of opening state and filtration rate in filter-feeding bivalves (Cardium edule, Mytilus edulis, Mya arenaria) in response to low algal concentration. J Exp Mar Biol Ecol 284:105–127CrossRefGoogle Scholar
  52. Riisgård HU, Seerup DF, Jensen MH, Glob E, Larsen PS (2004) Grazing impact of filter-feeding zoobenthos in a Danish fjord. J Exp Mar Biol Ecol 307:261–171CrossRefGoogle Scholar
  53. Rysgaard S, Christensen PB, Nielsen LP (1995) Seasonal variation in nitrification and denitrification in estuarine sediment colonized by benthic microalgae and bioturbating infauna. Mar Ecol Prog Ser 126:111–121CrossRefGoogle Scholar
  54. Sand-Jensen K, Nielsen SL, Borum J, Geertz-Hansen O (1994) Fytoplankton- og makrofytudviklingen i danske kystområder (Phytoplankton and macrophyte development in Danish coastal waters) (in Danish with English summary). Havforskning fra Miljøstyrelsen nr. 30, Miljøministeriet, CopenhagenGoogle Scholar
  55. Schramm W (1996) The Baltic Sea and its transition zones. In: Schramm, W, Nienhuis PH (eds) Marine benthic vegetation. Recent changes and the effects of eutrophication. Ecologial Studies 123. Springer, Berlin, pp 131–163Google Scholar
  56. Vedel A (1998) Phytoplankton depletion in the benthic boundary layer caused by suspension-feeding Nereis diversicolor (Polychaeta): grazing impact and effect on temperature. Mar Ecol Prog Ser 163:125–132CrossRefGoogle Scholar
  57. Vedel A, Andersen BB, Riisgård HU (1994) Field investigations of pumping activity of the facultatively filter-feeding polychaete Nereis diversicolor using an improved infrared phototransducer system. Mar Ecol Prog Ser 103:91–101CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • H. U. Riisgård
    • 1
  • M. H. Jensen
    • 2
  • N. Rask
    • 2
  1. 1.Marine Biological Research CentreUniversity of Southern DenmarkKertemindeDenmark
  2. 2.Marine, Water and Nature DivisionDanish Ministry of the Environment — Environment Centre OdenseOdense SØDenmark

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