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Time-series models of sea lice Caligus elongatus (Nordmann) abundance on Atlantic salmon Salmo salar L. in Loch Sunart, Scotland

Gettinby, G. and McKenzie, E. and McCart, K. and Revie, C.W. (2003) Time-series models of sea lice Caligus elongatus (Nordmann) abundance on Atlantic salmon Salmo salar L. in Loch Sunart, Scotland. In: 6th International Conference on Sea Lice Biology and Control, 2003-07-01 - 2003-07-04, St Andrews.

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Abstract

Most lice infestations on salmon farmed in the North Atlantic are attributed to Caligus elongatus and Lepeophtheirus salmonis. This study reports findings from time-series analysis conducted on observations of the lesser-studied C. elongatus, in four farms on the west coast of Scotland over the period 1996-2000. Least-squares and Poisson regression techniques were applied to one individual site and to the aggregated data of four sites. Models were fitted and tested for goodness of fit using appropriate statistical methods. Findings indicate that infestation levels are highly seasonal with rapidly increasing numbers after week 22 of the year followed by a steady decline from week 40. Abundance is much lower in the second year of the production cycle than the first. Neither of the models indicated that treatment application has a significant effect on C. elongatus infestations.

Item type: Conference or Workshop Item (Paper)
ID code: 2704
Notes: Also published in: Aquaculture Research (2004), 35 (8), pp764-772. (This is a variant record)
Keywords: time-series analysis, aquatic epidemiology, fish farming, salmon, Caligus elongatus, databases, Electronic computers. Computer science, Databases
Subjects: Science > Mathematics > Electronic computers. Computer science
Bibliography. Library Science. Information Resources > Information resources > Databases
Department: Faculty of Science > Computer and Information Sciences
Faculty of Science > Mathematics and Statistics
Related URLs:
Depositing user: Strathprints Administrator
Date Deposited: 14 Mar 2007
Last modified: 30 Oct 2012 12:59
URI: http://strathprints.strath.ac.uk/id/eprint/2704

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