The effect of temperature on ability of Lepeophtheirus salmonis to infect and persist on Atlantic salmon

Overview
TitleThe effect of temperature on ability of Lepeophtheirus salmonis to infect and persist on Atlantic salmon
AuthorsDalvin S, Are Hamre L, Skern-Mauritzen R, Vågseth T, Stien L, Oppedal F, Bui S
TypeJournal Article
Journal NameJournal of fish diseases
VolumeN/A
IssueN/A
Year2020
Page(s)N/A
CitationDalvin S, Are Hamre L, Skern-Mauritzen R, Vågseth T, Stien L, Oppedal F, Bui S. The effect of temperature on ability of Lepeophtheirus salmonis to infect and persist on Atlantic salmon. Journal of fish diseases. 2020 Sep 03.

Abstract

The salmon louse (Lepeophtheirus salmonis) is an ecologically and economically important parasite of salmonid fish. Temperature is a strong influencer of biological processes in salmon lice, with development rate increased at higher temperatures. The successful attachment of lice onto a host is also predicted to be influenced by temperature; however, the correlation of temperature with parasite survival is unknown. This study describes the effects of temperature on infection success, and survival on the host during development to the adult stage. To accurately describe infection dynamics with varying temperatures, infection success was recorded on Atlantic salmon (Salmo salar) between 2 and 10°C. Infection success ranged from 20% to 50% and was strongly correlated with temperature, with the highest success at 10°C. Parasite loss was monitored during development at eight temperatures with high loss of lice at 3 and 24°C, whilst no loss was recorded in the temperature range from 6 to 21°C. Sea temperatures thus have large effects on the outcome of salmon louse infections and should be taken into account in the management and risk assessment of this parasite. Improving understanding of the infection dynamics of salmon lice will facilitate epidemiological modelling efforts and efficiency of pest management strategies.

Author Details
Additional information about authors:
Details
1Sussie Dalvin
2Lars Are Hamre
3Rasmus Skern-Mauritzen
4Tone Vågseth
5Lars Stien
6Frode Oppedal
7Samantha Bui
Properties
Additional details for this publication include:
Property NameValue
Journal CountryEngland
Publication TypeJournal Article
Language Abbreng
LanguageEnglish
Copyright© 2020 The Authors. Journal of Fish Diseases published by John Wiley & Sons Ltd.
Elocation10.1111/jfd.13253
DOI10.1111/jfd.13253
Journal AbbreviationJ. Fish Dis.
Publication Date2020 Sep 03
eISSN1365-2761
ISSN1365-2761
Publication ModelPrint-Electronic
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PMID: PMID:32882750