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Title: Diversion and entrapment of fish at water intakes and outfalls (Report 1)
Author: D.J. Solomon
Document Type: Monograph
Water intakes and outfalls associated with many human activities are artificial features of the aquatic environment which can cause entrapment and death of fish and or obstruct their migrations. In discharging its duty to maintain, improve and develop fisheries under the Salmon and Freshwater Fisheries Act 1975, it is necessary for the National Rivers Authority to judge the potential impact on fish populations of abstraction and discharge points in order to decide if action should be taken to prevent or ameliorate any adverse effects. Information on the extent and nature of the potential or existing problems nationally, and literature describing existing or potential solutions for preventing and or ameliorating adverse effects nationally and internationally were diffuse. This report draws together experience of the problem , outlines and describes effective screening technology for different situations, together with temporal and spatial considerations. It thus provides an effective guide to enable Officers of the Authority to make better informed judgements as to the necessity for, and specification of, mechanisms for protecting indigenous fish populations.
Publisher: National Rivers Authority
Publication Date: 1992
Publication Place: Bristol
Subject Keywords: Water abstractionDischarge (hydrology)Fish passesWater abstraction licensesEnvironmental managementEnvironmental legislationEcological factors
Geographic Keywords: United Kingdom
Extent: 47; + appendices
Total file downloads: 308

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