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  • 1
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
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    National Rivers Authority North West | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8531 | 1256 | 2012-12-21 15:14:38 | 8531
    Publication Date: 2021-07-03
    Description: (1) A total of 45 sites was sampled, each being fished usingthe semi-quantitative and quantitative techniques.(2) A significant relationship existed between thesemi-quantitative and Quantitative results for all agegroups of salmonids (R2 83.4% to 96.1%, p 〈 0.0001).(3) The results from each site were categorised according toan existing classification system for quantitative andsemi-quantitative data. The semi-quantitative component ofthis system was modified using the results of thisinvestigation. The degree of error associated with sitesclassified semi-quantitatively was found to be slightlyless when using the modified system for 0+ salmon, 〉 0+salmon and 0+ trout, ranging from 10.5% to 30%.(4) Insufficient data points were available for the analysisof coarse fish data.
    Description: Environment Agency Archives North West
    Description: + Appendices
    Keywords: Fisheries ; Limnology ; England ; Cumbria ; Inland waters ; Freshwater fish ; Stock assessment ; Fish populations ; Environmental assessment ; Electric fishing
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 6
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  • 3
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    Environment Agency North West | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8542 | 1256 | 2012-12-22 13:34:16 | 8542 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-03
    Description: The microtagging programme began in 1987 using hatchery reared salmon originating from the rivers Caldew and Hodder and subsequently included the Lune (1988) and Ribble (1989). Microtagging of sea trout began in 1991 for the Lune and in 1993 for the Hodder.The report explores the NRA North west salmonid microtagging programme looking at methods, results and recommendations. The report provides salmon microtagging data and returns from 1987 to 1994.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; England ; Rivers ; River Fisheries ; Salmo salar ; Salmo trutta ; Tagging ; Tracking ; Migrations ; Stock assessment
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 20
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