Title: Regional river quality monitoring and surveillance : results of the 1990/1991 biological survey : draft report
Author: J.A.D. Murray-Bligh
Document Type: Monograph
Abstract:
This report describes the biological river quality monitoring programme undertaken by NRA South West Region, and the results of the 1990/1991 macroinvertebrate survey. The survey comprised 954 sites covering 4241 km of river and 29 km of canal, and was completed in two years: 502 sites were surveyed during 1990 and 449 in 1991. Two sites were not surveyed. Twenty-two key sites were visited in both years, to assess annual changes. The survey mirrored the routine chemical monitoring programme, but included additional sites so that all reaches which had been assigned River Quality Objectives are included.
Publisher: National Rivers Authority
Publication Date: 1993
Publication Place: Exeter
Subject Keywords: Rivers; Water quality surveys; Monitoring; Classification; Biological monitoring
Geographic Keywords: EA South West
Extent: 150; + appendices
Permalink: http://www.environmentdata.org/archive/ealit:2437
Total file downloads: 339
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