Davidson, TA; Hoare, D; Morley, D; Sayer, CD; (2006) Reconstructing the macrophyte flora of three Broads: A palaeolimnological analysis. (ECRC Research Report 106 ). UCL Environmental Change Research Centre: London, UK.

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Abstract

The decline in ecological quality and conservation value of Europe fresh waters is an all too common phenomenon. In lowland Britain the main anthropogenic impact on the river aquatic systems is that associated with elevated nutrient loading. The Broads are internationally important wetlands spanning a number of river basins in East Anglia. The Broads have suffered along with other wetlands and eutrophication has had a deleterious effect on the system (Mason & Bryant 1975, Moss 1977). There has been a general decline in the ecological quality and conservation value of the Broads as a result of eutrophication, with one of the main symptoms being elevated algal productivity. One of the changes in the ecological structure and functioning of shallow lakes in response to enrichment is an alteration in their macrophyte flora (Ris & Sand-Jensen 2001) and in extreme cases there may be the complete loss of submerged plants (Scheffer et al. 1993). The loss of the diversity of the macrophyte flora in the Broads is one of the contributing factors to the decline in their conservation value.

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