Effects of salmon lice Lepeophtheirus salmonis on sea trout Salmo trutta at different times after seawater transfer

Overview
TitleEffects of salmon lice Lepeophtheirus salmonis on sea trout Salmo trutta at different times after seawater transfer
AuthorsDawson LH, Pike AW, Houlihan DF, McVicar AH
TypeJournal Article
Journal NameDiseases of aquatic organisms
Volume33
Issue3
Year1998
Page(s)179-86
CitationDawson LH, Pike AW, Houlihan DF, McVicar AH. Effects of salmon lice Lepeophtheirus salmonis on sea trout Salmo trutta at different times after seawater transfer. Diseases of aquatic organisms. 1998 Jul 30; 33(3):179-86.

Abstract

The physiological and behavioural effects and skin damage caused by salmon lice Lepeophtheirus salmonis (Krøyer) infections on sea trout Salmo trutta L. smolts were greater in fish infected with lice 2 wk after seawater transfer than in fish infected 6 wk after seawater transfer. The initial prevalence of infection was 100% for both groups and the intensity of infection decreased significantly with time over 5 wk. Significantly fewer of the fish infected 2 wk after seawater transfer had resumed feeding by the end of the experiment, leading to a loss of body condition. Furthermore, these fish suffered more severe damage to the skin and detrimental changes in physiological integrity than fish infected 6 wk after seawater transfer as a direct consequence of feeding preadult lice, leading to osmoregulatory failure and death. Although this study was carried out in laboratory conditions, results indicate that lice infections may potentially have a detrimental impact on the survival of wild smolts after seawater transfer.

Author Details
Additional information about authors:
Details
1L H Dawson
2A W Pike
3D F Houlihan
4A H McVicar
Properties
Additional details for this publication include:
Property NameValue
Publication ModelPrint
ISSN0177-5103
pISSN0177-5103
Publication Date1998 Jul 30
Journal AbbreviationDis. Aquat. Org.
LanguageEnglish
Language Abbreng
Publication TypeJournal Article
Journal CountryGERMANY
Publication TypeResearch Support, Non-U.S. Gov't
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PMID: PMID:9841122