Skip to main content

PDF


Title: River Glen : river channel assessment : annex B : an analysis of invertebrate records for the River Glen 1976-1991
Author: G. Petts
Author: I. Maddock
Document Type: Monograph
Abstract:
Monitoring of the invertebrate communities, both routine and in response to pollution events, has been regularly practiced on the Glen since 1976. During this time the frequency of sampling and level of invertebrate identification has varied considerably, but leading up to the 1990-91 situation where sampling at most sites was carried out at least twice a year and a substantial proportion of the fauna is identified to species level. Despite its inconsistencies, the data set for the 1976-91 period contains a substantial amount of information, comprising some 250 records from 44 sites distributed throughout the River Glen system. This report aims to assess: the nature of the invertebrate communities in different parts of the catchment; long-term changes in biological quality at sites with long records; the performance of indices of biological quality in both monitoring within-site change and comparing sites within the river system.
Publisher: National Rivers Authority
Publication Date: 1992
Publication Place: Peterborough
Subject Keywords: RiversChannels (geography)AssessmentInvertebratesMonitoringAnalysis
Geographic Keywords: EA AnglianLincolnshireWelland catchment
Extent: 56; + appendices
Permalink: http://www.environmentdata.org/archive/ealit:3281
Total file downloads: 32

Download PDF    Display PDF in separate tab