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Title: Dee stock assessment programme : annual report 1989 - 1991
Author: I.C. Davidson
Document Type: Monograph
The Dee Stock Assessment Programme (DSAP) commenced in 1989 as an integrated and long term programme to monitor the migratory salmonids (salmon and sea trout) of the River Dee. The programme contains a number of components; these include adult trapping and mark-recapture studies, radio-tracking, automatic fish counting, fishery censuses, and microtagging and juvenile monitoring programmes. This report describes the progress of the DSAP from 1989 to present, and identifies areas for future work. Modifications to the Chester Weir fish trap commenced in August 1990 and were completed at the end of March 1991. Although this aspect of the DSAP has been delayed around 6 months, a near full season of trapping and tagging will still be possible for the mark-recapture and radio-tracking programmes in 1991. The delay has also allowed advances in other areas of the DSAP; in particular, the installation and validation of a new Aquantic fish counter at Manley Hall, practical preparations for the radio-tracking programme, and a further season to develop liaison with fishery concerns - including the anglers census which increased circulation by 55% in 1990.
Publisher: National Rivers Authority
Publication Date: 1991
Publication Place: Cardiff
Subject Keywords: Fishery managementStock assessmentSalmon fisheriesTroutAnnual reports
Geographic Keywords: Dee (Wales)
Extent: 8
Total file downloads: 270

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