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Title: River Ray, Oxon : fisheries survey 1989
Author: National Rivers Authority Thames Region
Document Type: Monograph
The River Ray could support a good coarse fishery in the section between Merton STW outfall and the confluence with the River Cherwell. Survey sites at the upstream and downstream ends of this section produced excellent biomasses and included quality fish, showing the potential of the River Ray. The River Ray has been extensively modified by land drainage creating a Fenland drain type of habitat. The main problem on the River Ray, particularly for the fish populations is the poor water quality caused by effluent from sewage treatment works. The largest of these is Bicester STW which is at present a derogated works. The effluent from Bicester STO has a deleterious effect on the fish populations downstream. Water quality gradually improves further downstream and fish populations are correspondingly improved.
Publisher: National Rivers Authority
Publication Date: 1989
Publication Place: Reading
Subject Keywords: RiversRiver fisheriesFishesSurveysBiomassWater qualityEffluents
Geographic Keywords: EA South EastOxfordshireCherwell catchment
Extent: 55
Total file downloads: 299

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