Snorkel sea-cage technology decreases salmon louse infestation by 75% in a full-cycle commercial test

Methods to prevent parasite infestations in farmed fish are becoming widespread, yet tests of their effectiveness often lack commercial relevance and statistical power, which may lead to technology misuse. Here, we examined salmon louse infestation on Atlantic salmon in triplicate commercial snorkel...

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Bibliographic Details
Published in:International Journal for Parasitology
Main Authors: Geitung, Lena, Oppedal, Frode, Stien, Lars Helge, Dempster, Timothy David, Karlsbakk, Egil, Nola, Velimir, Wright, Daniel William
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2019
Subjects:
Aquaculture
Control
Lepeophtheirus salmonis
Parasite
Salmo Salar
Snorkel sea-cage
Atlantic salmon
Salmo salar
Online Access:http://hdl.handle.net/1956/21031
https://doi.org/10.1016/j.ijpara.2019.06.003
Description
Summary:Methods to prevent parasite infestations in farmed fish are becoming widespread, yet tests of their effectiveness often lack commercial relevance and statistical power, which may lead to technology misuse. Here, we examined salmon louse infestation on Atlantic salmon in triplicate commercial snorkel louse barrier and standard cages over a 12 month production cycle. Barrier cages reduced newly settling lice on Atlantic salmon by 75%, with variability in parasite reduction over time depending upon environmental variables. The commercial, triplicate, long-term study design serves as a template to validate performance and detect weaknesses in anti-parasite techniques in fish mariculture. publishedVersion

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