Journal Article

Variations in parasitic caligid infestations on farmed salmonids and implications for their management

D. Jackson, S. Deady, Y. Leahy and D. Hassett

in ICES Journal of Marine Science

Published on behalf of ICES/CIEM

Volume 54, issue 6, pages 1104-1112
Published in print December 1997 | ISSN: 1054-3139
Published online December 1997 | e-ISSN: 1095-9289 | DOI: http://dx.doi.org/10.1016/S1054-3139(97)80015-X
Variations in parasitic caligid infestations on farmed salmonids and implications for their management

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In order to evaluate the performance of various sea lice management strategies, data sets from a number of salmon farm sites on the west coast of Ireland were examined. These data sets were collected as part of the ongoingNational Sea Lice Monitoring Programme in Ireland. Temporal and geographic variations in infestations of Lepeophtheirus salmonis and Caligus elongatus are described from two species of farmedsalmonids, Salmo salar L. and Oncorhynchus mykiss Walbaum. Patterns of lice transmission, both within and between fish populations, are discussed and environmental and biotic influences considered. Clear differences in infestation parameters, which persist over a number of seasons, are identified between sites. Where infestation parameters are observed to change over successive seasons, these are linked to changing husbandry practices.

Keywords: Caligus elongatus; control; husbandry practices; Lepeophtheirus salmonis; Oncorhynchus mykiss; Salmo salar; sea lice

Journal Article.  0 words. 

Subjects: Environmental Science ; Marine and Estuarine Biology

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