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Title: River Wye fisheries survey 1990
Author: National Rivers Authority Thames Region
Document Type: Monograph
Nine sites were fished with electrofishing equipment between 22/2/90 and 9/5/90. The upper reaches of the Wye from source to High Wycombe sewage treatment works (STW) held negligible fish populations. The site immediately downstream of High Wycombe STW was the only one to support a population where biomass and recruitment of brown trout and roach showed parity with similar rivers. Brown trout populations consisted of older fish and were presumed to be in decline, being replaced at most sites by roach. The Wye is a chalk stream relying on groundwater flow. Flows were lowered by climatic conditions. This was identified as one possible reason for poor fish populations. Measures of water quality give conflicting results and further investigation of this subject would be useful to clarify possible impacts on fisheries. The watercourse is rather featureless in many areas. Fish populations could be improved by the provision or encouragement of instream cover.
Publisher: National Rivers Authority
Publication Date: 1990
Publication Place: Reading
Subject Keywords: RiversRiver fisheriesFishesSurveysPopulation dynamicsBiomass
Geographic Keywords: EA South EastBuckinghamshireWye (Buckinghamshire)Thame and South Chilterns catchment
Taxonomic Keywords: Rutilus rutilusSalmo trutta
Extent: 27; + appendices
Total file downloads: 297

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