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Title: A simple key to canal water quality using a biological technique
Author: Environment Agency
Document Type: Monograph
This report focuses on sixty sampling sites on canalised watercourses in the Thames, South-Western, Midlands and Yorkshire regions, where the Chironomid Pupal Exuviae Technique was used for sampling. Chironomid data were directly related to associated physical and chemical characteristics of each site. Changes in abundance of chironomid taxa were significantly correlated with water quality, after accounting for geographical variation. A non-expert scoring system is proposed for assessing water quality in canals. Scores were attributed to widely distributed, frequently occurring and easily recognisable indicator taxa. A dichotomus key based on six of the these indicators is provided for classifying canal water quality.
Publisher: Environment Agency
Publication Date: 1997
Publication Place: Reading
Subject Keywords: Indicator speciesChironomid Pupal Exuviae TechniqueCanalsWater qualityGeographical distribution
Geographic Keywords: ThamesMidlands (England)YorkshireBridgwater and Taunton Canal
Extent: 11; + tables
Total file downloads: 317

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