Skip to main content

PDF


Title: Investigation into macroinvertebrate sampling variability (01/T/001)
Author: J. Biggs
Author: A. Corfield
Author: D. Walker
Author: M. Whitfield
Author: P. Williams
Document Type: Monograph
Annotation: EA additional title info: pond action January 1997
Abstract:
This report describes the resulls of an Operational Investigation (No. OI/T/OOl) undertaken by Pond Action for EA Thames Region between October 1993 and September 1994. The main objective of the project was to describe the effect of macroinvertebrate sampling variability on assessments of water quality made using the BMWP system and R1VPACS. The data set for the study consisted of macroinvertebrate samples collected from 12 randomly selected EA Thames Region routine monitoring sites. The selection of sites was stratified to ensure that all four water quality bands of the 5M system were represented- Sites were sampled by randomly chosen samplers, drawn from a pool of four experienced biologists, in autumn 1993 and spring 1994.
Publisher: Environment Agency
Publication Date: 1997
Publication Place: Reading
Subject Keywords: RIVPACSBMWPIndicator organismsMacroinvertebratesBiotic indexBiological samplingRiversStatistical methods
Geographic Keywords: ThamesColn (Gloucestershire)
Extent: 141
Permalink: http://www.environmentdata.org/archive/ealit:910
Total file downloads: 32

Download PDF    Display PDF in separate tab