Restoring nutrient-enriched shallow lakes: integration of theory and practice in the Norfolk Broads, U.K.

  • F. J. Madgwick
Part of the Developments in Hydrobiology book series (DIHY, volume 143)


Restoration of severely eutrophic, shallow lakes often involves a step by step treatment, starting with control of catchment nutrient inputs and internal nutrient loading, followed by biomanipulation and finally the stabilisation of a macrophyte dominated lake. In this paper, the restoration strategy of Barton Broad is presented. As this is the largest and most complex of the lakes in Broadland to restore, the nature of the restoration strategy is derived from the combined experience of research, monitoring and small scale restoration projects elsewhere. Some practical difficulties and uncertainties are identified within each of the restoration ‘steps’. The need for careful assessment of restoration targets, a catchment approach and collaboration with local people are emphasised.

Key words

nutrient control dredging biomanipulation macrophytes targets sustainability 


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  1. Broads Authority, 1997. Broads Plan, Broads Authority, Norwich.Google Scholar
  2. Carvahlo, L. & B. Moss, 1995. The current status of a sample of English Sites of Special Scientific Interest subject to eutrophication. Aquat. Conserv. 5: 191–204.CrossRefGoogle Scholar
  3. Crook, C. F., R. R. Boar & B. Moss, 1983. The decline of reedswamp in the Norfolk Broadland: causes, consequences and solutions. Report to the Broads Authority, Norwich, U.K.Google Scholar
  4. European Environment Agency, 1998. Europe’s Environment: the Second Assessment, Copenhagen. 293 pp.Google Scholar
  5. Foy, R. H, R. V. Smith, C. Jordan & S. D. Lennox, 1995. Upward trend in soluble phosphorus loadings to Lough Neagh despite phosphorus reduction at sewage treatment works. Wat. Res. 29: 1051–1063.CrossRefGoogle Scholar
  6. George, M., 1992. The Land Use, Ecology and Conservation of Broadland. Packard Publishing, Chichester.Google Scholar
  7. Grimm, M. P., 1994. The characteristics of the optimum habitat of northern pike (Esox lucius). In I. G. Cowx (ed), Rehabilitation of Freshwater Fisheries. Fishing News book ), Blackwell Scientific Publication Ltd: 235–243.Google Scholar
  8. Holve, H., 1996. Broads Natural Area Profile. English Nature and Broads Authority, Norwich, U.K.Google Scholar
  9. Holzer, T., M. R. Perrow, F. J. Madgwick & D. S. Dunsford, 1997. Practical Methods for Broads Restoration. In F. J. Madgwick & G. L. Phillips (eds), Restoration of the Norfolk Broads’. Final report (BARS 14 ) Broads Authority and Environment Agency, Norwich.Google Scholar
  10. Hosper, H. & M. L. Meijer, 1993. Biomanipulation, will it work for your lake? A simple test for the assessment of chances for clear water, following drastic fish-stock reduction in shallow, eutrophic lakes. Ecol. Eng. 2: 63–72.CrossRefGoogle Scholar
  11. Hosper, H., 1997. Clearing Lakes - an ecosystem approach to the restoration and management of shallow lakes in the Netherlands: 168 pp. RIZA, Lelystad.Google Scholar
  12. Irvine, K., B. Moss & H. R. Balls, 1989. The loss of submerged plants with eutrophication II - relationships between fish and zooplankton in a set of experimental ponds, and conclusions. Freshwat. Biol. 22: 89–107.CrossRefGoogle Scholar
  13. Jackson, M. J., 1997. Sampling methods for studying macroinvertebrates in the littoral vegetation of shallow lakes. Report to the Broads Authority (BARS 17 ), Norwich, U.K.Google Scholar
  14. Jackson, R. H. & G. L. Phillips, 1990. Investigation of phosphorus dynamics at the mud/water interface. Final report to the Nature Conservancy Council, Project HF3–03–350, National Rivers Authority, Anglian Region, Ipswich, Suffolk.Google Scholar
  15. Jeppesen, E., P. Kristensen, J. Jensen, M. Sondergaard, E. Mortensen & Laurisden,1991. Recovery resilience following a reduction in external phosphorus loading of shallow, eutrophic lakes: duration, regulating factors and methods for overcoming resilience. Mem. Ist. ital. Idrobiol. 48: 127–148.Google Scholar
  16. Johnes, P., 1996. Nutrient export modelling - River Bure, Norfolk. Final report to Environment Agency, Anglian Region OI 581.Google Scholar
  17. Jupp, B. P. & D. H. N. Spence, 1977. Limitations of macrophytes in a eutrophic lake. Loch Leven.II. Wave action, sediments and waterfowl grazing. J. Ecol. 65: 431–446.CrossRefGoogle Scholar
  18. Kennison, G. C. B., D. S. Dunsford & J. Schutten, 1998. Stable or changing lakes? A classification of aquatic macrophyte assemblages from a eutrophic shallow lake system in the United Kingdom. Submitted to Aquat. Cons. Mar. Freshwat. Ecosystems 8: 669–684.CrossRefGoogle Scholar
  19. Klinge, M., M. P. Grimm & S. H. Hosper, 1995. Eutrophication and ecological rehabilitation of Dutch lakes: explanation and prediction by a new conceptual framework. Wat. Sci. Technol. 31: 207–218.CrossRefGoogle Scholar
  20. Krzyzanek, E., H. Kasza, W. Krzanowski, T. Kuflikowski & G. Pajak, 1986. Succession of communities in the Goczalkowice Dam Reservoir in the period 1995–1982. Arch. Hydrobiol. 106: 21–43.Google Scholar
  21. Lauridsen, T. L., E. Jeppesen & F. ostergaard Andersen, 1993. Colonisation of submerged macrophytes in shallow fish manipulated Lake Vaeng: impact of sediment composition and waterfowl grazing. Aquat. Bot. 46: 1–15.CrossRefGoogle Scholar
  22. Madgwick, F. J., 1996. Broads Restoration Strategy - An evaluation of the possibilities for restoring nutrient enriched broads to a good ecological condition. Internal report to Broads Authority and to European Commission for Life Programme (Project 92–3/UK/031). 12 pp.Google Scholar
  23. Madgwick, F. J., in press. Strategies for Conservation Management of Lakes. Submitted for publication in the Proceedings of the conference “The ecological basis for Lake and Reservoir Management”, University of Leicester.Google Scholar
  24. Marsden, M. W., 1989. Lake restoration by reducing external phosphorus loading: the influence of sediment phosphorus release. Freshwat. Biol. 21: 139–162.CrossRefGoogle Scholar
  25. Moss, B., 1980. Further studies on the palaeolimnology and changes in the phosphorus budget of Barton Broad, Norfolk. Freshwat. Bio1. 10: 261–279.CrossRefGoogle Scholar
  26. Moss, B., 1989. Water pollution and the management of ecosystems: a case study of science and the scientist. In P. J. Grubb & R. H. Whittaker (eds), Toward a More Exact Ecology. Thirtieth Symposium of the British Ecological Society, Blackwell Scientific, Oxford: 401–422.Google Scholar
  27. Moss, B., F. J. Madgwick & G. L. Phillips, 1996. A guide to the restoration of nutrient-enriched shallow lakes, Broads Authority and Environment Agency, Norwich: 180 pp.Google Scholar
  28. NRA, 1995. Yare Catchment Management Plan - Action Plan, Anglian Region, Peterborough: 27 pp.Google Scholar
  29. Nature Conservancy, 1965. Report on Broadland, The Nature Conservancy, London: 98 pp.Google Scholar
  30. Osborne, P. L. & B. Moss, 1977. Paleolimnology and trends in the phosphorus and iron budgets of an old man-made lake, Barton Broad, Norfolk. Freshwat. Bio1. 7: 213–233.CrossRefGoogle Scholar
  31. Perrow, M. R., J. Schutten, J. R. Howes, T. Holzer, F. J. Madgwick & A. J. D. Jowitt, 1997. Interactions between coot (Fulica atra) and submerged macrophytes: the role of birds in the restoration process. Hydrobiol 342 /343: 241–255.CrossRefGoogle Scholar
  32. Perrow, M. R. & A. J. D. Jowitt, 1997. Factors Affecting Water Plant Recovery - The influence of macrophytes on the structure and function of fish communities. In F. J. Madgwick & G. L. Phillips (eds), Restoration of the Norfolk Broads. Final report (Life 92–3/ÚK/031 and Broads Authority BARS 14.Google Scholar
  33. Perrow, M. R., J. H. Stansfield, A. J. D. Jowitt & L. D. Tench. Macrophytes as a refuge for grazing zooplankton from fish predation. In F. J. Madgwick & G. L. Phillips (eds), Restoration of the Norfolk Broads. Final report (Life 92–3/UK/031 and Broads Authority BARS 14). (in press).Google Scholar
  34. Phillips, G. L. 1977. The mineral nutrient levels in three Norfolk Broads differing in trophic status, and an annual mineral content budget for one of them. J. Ecol. 65: 447–474.CrossRefGoogle Scholar
  35. Pitt, J., A. Kelly & G. L. Phillips, 1997. Control of Nutrient Release From Sediments. In F. J. Madgwick & G. L. Phillips (eds), Restoration of the Norfolk Broads. Final report (Life 92–3/UK/03I and Broads Authority BARS 14 ).Google Scholar
  36. Sas, H., 1989. Lake restoration by reduction of nutrient loadings: expectations, experiences, extrapolations. Academia Verlag Richarz, Sankt Augustin.Google Scholar
  37. Sharpley, A. N., M. J. Hedley, E. Sibbeson, A. Hillbright-Ilkowska, W. A. House & L. Ryszkowski, 1995. Phosphorus transfers from terrestrial to aquatic ecosystems. In H. Tiessen (ed.), Phosphorus in the Global Environment. J. Wiley, Chichester: 171–200.Google Scholar
  38. Schutten, J., A. J. Davy, F. J. Madgwick, H. Coops, W. Admiraal, E. H. R. R. Lammens, & G. L. Phillips, 1997. Factors Affecting Water Plant Recovery - Overview and Sediment Influences. In F. J. Madgwick & G. L. Phillips (eds), Restoration of the Norfolk Broads. Final report (Life 92–3/ÚK/031 and Broads Authority BARS 14).Google Scholar
  39. Stansfield, J. H. & S. Caswell. Biomanipulation as a restoration tool. In F. J. Madgwick & G. L. Phillips (eds), Restoration of the Norfolk Broads. Final report (Life 92–3/ÚK/031 and Broads Authority BARS 14). (in press).Google Scholar
  40. Timms, R. M. & B. Moss, 1984. Prevention of growth of potentially dense phytoplankton populations by zooplankton grazing, in the presence of zooplanktivorous fish, in a shallow wetland ecosystem. Limnol. Oceanogr. 29: 472–486.CrossRefGoogle Scholar
  41. Turkstra, E. & H. L. F. Saeijs, 1992. Sustainable flexibility B an evaluation and forecast. In J. C. Hooghart & C. W. S. Posthumus (eds), How an Estuary Changed into a Freshwater Lake. Proceedings and Information/TNO Committee on Hydrological Research: no 46, The Netherlands.Google Scholar
  42. Van Donk, E., 1997. Switches between clear water state and turbid state induced by herbivory on macrophytes. In E. Jeppeson et al. (eds), The Role of Submerged Macrophyes in Structuring the Biological Community and Bio-geochemical Dynamics in Lakes. workshop 16–20 June, 1996. Silkeborg, Denmark.Google Scholar
  43. Van Donk, E. & R. D. Gulati, (eds) 1989. Biomanipulation in the Netherlands. Proceedings of a Symposium. Hydrobiol. Bull. 23: 1–99.CrossRefGoogle Scholar
  44. Van Donk, E. & R. D. Gulati, 1995. Transition of a lake to turbid state six years after biomanipulation: mechanisms and pathways. Wat. Sci. Technol. 32: 197–206.Google Scholar
  45. Van Donk, E, M. P. Grimm, P. G. M. Heuts, G. Blom, K. Everards & O. F.R. van Tongeren, 1994a. Use of mesocosms in shallow, eutrophic lakes to study the effects of different restoration measures. Arch. Hydrobiol. 40: 283–294.Google Scholar
  46. Van Donk, E., E. De Deckere, G. R. Klein Breteler & J. T. Meulemans, 1994b. Herbivory by waterfowl and fish on macrophytes in a biomanipulated lake: effects on long term recovery. Verh. int. Ver. limnol. 25: 2139–2143.Google Scholar
  47. Van der Vlugt J. C., P. A. Walker, J. van der Does & A. J. P. Raat, 1992. Fisheries management as an additional lake restoration measure: biomanipulation scaling-up problems. Hydrobiol. 233: 213–225.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • F. J. Madgwick
    • 1
  1. 1.WWF International, c/o WWF DenmarkCopenhagen NDenmark

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