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Title: Gunnislake fish counter : annual report 2002
Author: Environment Agency South West Region
Document Type: Monograph
Abstract:
The following report presents the daily upstream counts of migratory salmonids recorded on the River Tamar at Gunnislake Weir fish counting station (SX 435 713) situated in 2002. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Bylaws: Net buy-back (8 August - 31 August inclusive); National Spring Salmon Bylaws - No netting before 1 June. The fish counter at Gunnislake is a resistivity based system (Logie 2100A - Aquantic limited) and is installed in the fish pass on the Cornish bank of the River Tamar at the head of the tide. The run pattern observed for salmon and sea trout in 2002 was generally consistent with that of previous years. However, the total combined annual count of upstream migrating salmon and sea trout on the River Tamar in 2002 was 19.4% higher than the 8-year average.
Publisher: Environment Agency
Publication Date: 2003
Publication Place: Exeter
Subject Keywords: Annual reportsFish countersFish migrationSalmonFlow rateWater temperature
Geographic Keywords: TamarTamar catchmentGunnislake
Extent: 41
Permalink: http://www.environmentdata.org/archive/ealit:976
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