Sterilization of sea lice eggs with ultraviolet C light: towards a new preventative technique for aquaculture

Overview
TitleSterilization of sea lice eggs with ultraviolet C light: towards a new preventative technique for aquaculture
AuthorsBarrett LT, Pert CG, Bui S, Oppedal F, Dempster T
TypeJournal Article
Journal NamePest management science
VolumeN/A
IssueN/A
Year2019
Page(s)N/A
CitationBarrett LT, Pert CG, Bui S, Oppedal F, Dempster T. Sterilization of sea lice eggs with ultraviolet C light: towards a new preventative technique for aquaculture. Pest management science. 2019 Aug 23.

Abstract

BACKGROUND
Sea lice infestations on Atlantic salmon (Salmo salar) farms are a considerable burden on the industry and put wild salmonid populations at risk. Frequent delousing treatments are necessary to keep lice densities below allowable limits, but currently viable treatments have drawbacks in terms of financial cost, animal welfare, or environmental impacts. We tested if 254 nm ultraviolet C light (UVC) could function as a new preventative method to suppress reproduction of salmon lice (Lepeophtheirus salmonis) by sterilizing fertilized eggs. We exposed salmon lice eggstrings to a range of UVC intensities and durations to identify effective doses.

RESULTS
A cumulative dose of 0.008 J cm

CONCLUSION
UVC treatment has immediate applications for the salmon aquaculture industry, including for the treatment of wastewater from delousing or other operations. Future work will assess the feasibility of UVC dose delivery on host salmon in sea cage environments that involves little or no fish handling and creates negligible environmental impacts. This article is protected by copyright. All rights reserved.

Author Details
Additional information about authors:
Details
1Luke T Barrett
2Cassandra G Pert
3Samantha Bui
4Frode Oppedal
5Tim Dempster
Properties
Additional details for this publication include:
Property NameValue
Journal CountryEngland
Publication TypeJournal Article
Language Abbreng
LanguageEnglish
CopyrightThis article is protected by copyright. All rights reserved.
Publication ModelPrint-Electronic
Elocation10.1002/ps.5595
DOI10.1002/ps.5595
Journal AbbreviationPest Manag. Sci.
Publication Date2019 Aug 23
eISSN1526-4998
ISSN1526-4998
Cross References
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DatabaseAccession
PMID: PMID:31441192