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The use of prevalence as a measure of lice burden: a case study of Lepeophtheirus salmonis on Scottish Atlantic salmon, Salmo salar L., farms

Baillie, M. and Lees, F. and Gettinby, G. and Revie, C.W. (2009) The use of prevalence as a measure of lice burden: a case study of Lepeophtheirus salmonis on Scottish Atlantic salmon, Salmo salar L., farms. Journal of Fish Diseases, 32 (1). pp. 15-25. ISSN 0140-7775

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    Abstract

    This study investigates the benefits of using prevalence as a summary measure of sea lice infestation on farmed Atlantic salmon, Salmo salar L. Aspects such as sampling effort, the relationship between abundance and prevalence arising from the negative binomial distribution, and how this relationship can be used to indicate the degree of aggregation of lice on a site at a given time point are discussed. As a case study, data were drawn from over 50 commercial Atlantic salmon farms on the west coast of Scotland between 2002 and 2006. Descriptive statistics and formal analysis using a linear modelling technique identified significant variations in sea lice prevalence across year class, region and season. Supporting evidence of a functional relationship between prevalence and abundance of sea lice is provided, which is explained through the negative binomial distribution.

    Item type: Article
    ID code: 15290
    Keywords: abundance, Atlantic salmon, negative binomial distribution, prevalence, sea lice, Probabilities. Mathematical statistics, Electronic computers. Computer science, veterinary (miscalleneous), Aquatic Science
    Subjects: Science > Mathematics > Probabilities. Mathematical statistics
    Science > Mathematics > Electronic computers. Computer science
    Department: Faculty of Science > Mathematics and Statistics
    Faculty of Science > Computer and Information Sciences
    Faculty of Science > Mathematics and Statistics > Statistics and Modelling Science
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    Depositing user: Mrs Ann Lynch
    Date Deposited: 04 Feb 2010 19:37
    Last modified: 05 Sep 2014 13:31
    URI: http://strathprints.strath.ac.uk/id/eprint/15290

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