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Title: Urban Waste Water Treatment Directive monitoring of designated and candidate sensitive areas (eutrophic) : macrophyte survey results 1994 : preliminary assessment
Author: National Rivers Authority Anglian Region
Document Type: Monograph
The aims of the macrophyte surveys, which are being carried out over three seasons 1994-1996, are to monitor designated Sensitive Areas (eutrophic) (SA(e)s) and to collect data on candidate SA(e)s for the review in 1997. The data collected from the macrophyte surveys will be used for two purposes: 1) to assess whether an SA(e) is eutrophic and 2) to assess the impact of qualifying discharges on SA(e)s. Although macrophyte data collected in 1993 for the initial designation of SA(e)s were very effective it was acknowledged that some form of summary statistic would be a valuable tool in the future assessment of the data. It was also recognised that the current systems for calculating trophic indices were not very suitable for use in the Anglian Region. As a result an initial list of Regionally relevant macrophytes was compiled, together with associated trophic scores, by Nigel Holmes.
Publisher: National Rivers Authority
Publication Date: 1995
Publication Place: Peterborough
Subject Keywords: Wastewater treatmentTrophic levelsMacrophytesSurveys
Geographic Keywords: EA Anglian
Extent: 8
Total file downloads: 0

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