Spatial and temporal variation in the infestation of sea trout (Salmo trutta L.) by the caligid copepod Lepeophtheirus salmonis (Krøyer) in relation to sources of infection in Ireland

Overview
TitleSpatial and temporal variation in the infestation of sea trout (Salmo trutta L.) by the caligid copepod Lepeophtheirus salmonis (Krøyer) in relation to sources of infection in Ireland
AuthorsTully O, Gargan P, Poole WR, Whelan KF
TypeComparative Study
Media TitleParasitology
Volume119 ( Pt 1)
IssueN/A
Year1999
Page(s)41-51
CitationTully O, Gargan P, Poole WR, Whelan KF. Spatial and temporal variation in the infestation of sea trout (Salmo trutta L.) by the caligid copepod Lepeophtheirus salmonis (Krøyer) in relation to sources of infection in Ireland. Parasitology. 1999 Jul; 119 ( Pt 1):41-51.

Abstract

Infestations of post-smolt sea trout (Salmo trutta L.) by the salmon louse (Lepeophtheirus salmonis Krøyer) were characterized in 42 estuaries over a 5 year period in Ireland. Spatial variation in infestation was more significant than temporal trends and existed at 3 levels; between regions (regions > 100 km of coastline), between bays within regions (bays < 50 km in length) and between estuaries within bays (distance between estuaries < 10 km). The observed spatial structure in infestations inferred that production of the infective larvae varied between regions and bays and that there was limited movement of fish and infective larvae between regions and bays. In addition the different levels of infestation recorded between estuaries in the same bay indicated short spatial scale variability in parasite transmission. Significantly higher infestations occurred in bays that contained lice-infested farmed salmon. Lice-infested wild spring salmon, which were present in estuaries of some systems, did not have a significant positive impact on infestations.

Author Details
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Details
1O Tully
2P Gargan
3W R Poole
4K F Whelan
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Property NameValue
Publication ModelPrint
ISSN0031-1820
pISSN0031-1820
Publication Date1999 Jul
Journal AbbreviationParasitology
LanguageEnglish
Language Abbreng
Publication TypeComparative Study
Journal CountryENGLAND
Publication TypeJournal Article
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PMID: PMID:10446703