Skip header navigation

University of Stirling

×

Article

Differing susceptibility of anadromous brown trout (Salmo trutta L.) populations to salmon louse (Lepeophtheirus salmonis (Kroyer, 1837)) infection

Citation
Glover KA, Skaala O, Nilsen F, Olsen RE, Teale AJ & Taggart J (2003) Differing susceptibility of anadromous brown trout (Salmo trutta L.) populations to salmon louse (Lepeophtheirus salmonis (Kroyer, 1837)) infection. ICES Journal of Marine Science, 60 (5), pp. 1139-1148. https://doi.org/10.1016/S1054-3139%2803%2900088-2

Abstract
Three Norwegian sea trout (Salmo trutta L.) stocks and a farmed Atlantic salmon (Salmo salar L.) stock were challenged with salmon lice (Lepeophtheirus salmonis (Krøyer, 1837)), in a "common garden" experiment. Sea trout from the River Guddal exhibited a significantly lower level of infection, as measured by louse abundance and louse density, than other stocks. In addition, salmon lice developed significantly more slowly on the Guddal stock than on the other stocks. Salmon louse abundance and density were similar for the Rivers Fortun and Sima stocks of sea trout, and abundance of lice, though not density, was highest for farmed Atlantic salmon. Within stocks, there were no differences in infection levels of salmon louse between mature and immature fish, between sexes, or between anal-fin-clipped and non-clipped salmon. Differences in infection level among the sea trout stocks may, it is suggested, reflect genetic differences.

Keywords
Atlantic salmon; genetic; salmon lice; sea trout

Journal
ICES Journal of Marine Science: Volume 60, Issue 5

StatusPublished
Author(s)Glover, Kevin A; Skaala, Oystein; Nilsen, Frank; Olsen, Rolf E; Teale, Alan J; Taggart, John
Publication date31/10/2003
PublisherOxford University Press
ISSN1054-3139
Scroll back to the top