Novel use of nanofiltered hyposaline water to control sea lice (Lepeophtheirus salmonis and Caligus elongatus) and amoebic gill disease, on a commercial Atlantic salmon (Salmo salar) farm
Infestations by the salmon louse (Lepeophtheirus salmonis) and amoebic gill disease (AGD) are currently significant disease concerns facing the Atlantic salmon aquaculture industry in Ireland. Increasing seawater temperatures, and the move away from chemotherapeutants has prompted a new approach to...
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Online Access: | https://doi.org/10.1016/j.aqrep.2021.100703 https://doaj.org/article/d4998e9d8c284ba2b992f4934a243ce6 |
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ftdoajarticles:oai:doaj.org/article:d4998e9d8c284ba2b992f4934a243ce6 2023-05-15T15:30:24+02:00 Novel use of nanofiltered hyposaline water to control sea lice (Lepeophtheirus salmonis and Caligus elongatus) and amoebic gill disease, on a commercial Atlantic salmon (Salmo salar) farm Tom Mc Dermott Jack D’Arcy Suzanne Kelly Jamie K. Downes Bogna Griffin Robert F. Kerr Damien O’Keeffe Micheal O’Ceallachain Louise Lenighan Felix Scholz Neil M. Ruane 2021-07-01T00:00:00Z https://doi.org/10.1016/j.aqrep.2021.100703 https://doaj.org/article/d4998e9d8c284ba2b992f4934a243ce6 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2352513421001198 https://doaj.org/toc/2352-5134 2352-5134 doi:10.1016/j.aqrep.2021.100703 https://doaj.org/article/d4998e9d8c284ba2b992f4934a243ce6 Aquaculture Reports, Vol 20, Iss , Pp 100703- (2021) Hyposaline Sea lice AGD Atlantic salmon Tarpaulin Efficacy Aquaculture. Fisheries. Angling SH1-691 article 2021 ftdoajarticles https://doi.org/10.1016/j.aqrep.2021.100703 2022-12-31T13:19:51Z Infestations by the salmon louse (Lepeophtheirus salmonis) and amoebic gill disease (AGD) are currently significant disease concerns facing the Atlantic salmon aquaculture industry in Ireland. Increasing seawater temperatures, and the move away from chemotherapeutants has prompted a new approach to researching areas of host-parasite life histories and using the physiology and behaviour of the parasites to develop novel control methods. Freshwater, with a low ionic concentration can be used to control sea lice and AGD but this may not always be available. Alternative treatments with hydrogen peroxide can prove toxic at the higher summer water temperatures experienced at this latitude. The aim of this study was to determine the efficacy of using nano-filtered hyposaline water as a non-medicinal method to reduce sea lice (L. salmonis and Caligus elongatus) infestation levels and amoebic gill disease under commercial conditions on an Atlantic salmon farm. To achieve this salmon were bathed in a tarpaulin filled with 5 ppt hyposaline water for 4.5 h and a regime of prophylactic bath treatments put in place to follow the production cycle. The nano-filtration unit consistently produced low saline water and resulted in a significant reduction of sea lice levels and AGD following routine 4.5 h baths. A 4.5 h bioassay of detached salmon lice confirmed both hyposaline and freshwater were equally effective against L. salmonis in the absence of the host. Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles Aquaculture Reports 20 100703 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Hyposaline Sea lice AGD Atlantic salmon Tarpaulin Efficacy Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
Hyposaline Sea lice AGD Atlantic salmon Tarpaulin Efficacy Aquaculture. Fisheries. Angling SH1-691 Tom Mc Dermott Jack D’Arcy Suzanne Kelly Jamie K. Downes Bogna Griffin Robert F. Kerr Damien O’Keeffe Micheal O’Ceallachain Louise Lenighan Felix Scholz Neil M. Ruane Novel use of nanofiltered hyposaline water to control sea lice (Lepeophtheirus salmonis and Caligus elongatus) and amoebic gill disease, on a commercial Atlantic salmon (Salmo salar) farm |
topic_facet |
Hyposaline Sea lice AGD Atlantic salmon Tarpaulin Efficacy Aquaculture. Fisheries. Angling SH1-691 |
description |
Infestations by the salmon louse (Lepeophtheirus salmonis) and amoebic gill disease (AGD) are currently significant disease concerns facing the Atlantic salmon aquaculture industry in Ireland. Increasing seawater temperatures, and the move away from chemotherapeutants has prompted a new approach to researching areas of host-parasite life histories and using the physiology and behaviour of the parasites to develop novel control methods. Freshwater, with a low ionic concentration can be used to control sea lice and AGD but this may not always be available. Alternative treatments with hydrogen peroxide can prove toxic at the higher summer water temperatures experienced at this latitude. The aim of this study was to determine the efficacy of using nano-filtered hyposaline water as a non-medicinal method to reduce sea lice (L. salmonis and Caligus elongatus) infestation levels and amoebic gill disease under commercial conditions on an Atlantic salmon farm. To achieve this salmon were bathed in a tarpaulin filled with 5 ppt hyposaline water for 4.5 h and a regime of prophylactic bath treatments put in place to follow the production cycle. The nano-filtration unit consistently produced low saline water and resulted in a significant reduction of sea lice levels and AGD following routine 4.5 h baths. A 4.5 h bioassay of detached salmon lice confirmed both hyposaline and freshwater were equally effective against L. salmonis in the absence of the host. |
format |
Article in Journal/Newspaper |
author |
Tom Mc Dermott Jack D’Arcy Suzanne Kelly Jamie K. Downes Bogna Griffin Robert F. Kerr Damien O’Keeffe Micheal O’Ceallachain Louise Lenighan Felix Scholz Neil M. Ruane |
author_facet |
Tom Mc Dermott Jack D’Arcy Suzanne Kelly Jamie K. Downes Bogna Griffin Robert F. Kerr Damien O’Keeffe Micheal O’Ceallachain Louise Lenighan Felix Scholz Neil M. Ruane |
author_sort |
Tom Mc Dermott |
title |
Novel use of nanofiltered hyposaline water to control sea lice (Lepeophtheirus salmonis and Caligus elongatus) and amoebic gill disease, on a commercial Atlantic salmon (Salmo salar) farm |
title_short |
Novel use of nanofiltered hyposaline water to control sea lice (Lepeophtheirus salmonis and Caligus elongatus) and amoebic gill disease, on a commercial Atlantic salmon (Salmo salar) farm |
title_full |
Novel use of nanofiltered hyposaline water to control sea lice (Lepeophtheirus salmonis and Caligus elongatus) and amoebic gill disease, on a commercial Atlantic salmon (Salmo salar) farm |
title_fullStr |
Novel use of nanofiltered hyposaline water to control sea lice (Lepeophtheirus salmonis and Caligus elongatus) and amoebic gill disease, on a commercial Atlantic salmon (Salmo salar) farm |
title_full_unstemmed |
Novel use of nanofiltered hyposaline water to control sea lice (Lepeophtheirus salmonis and Caligus elongatus) and amoebic gill disease, on a commercial Atlantic salmon (Salmo salar) farm |
title_sort |
novel use of nanofiltered hyposaline water to control sea lice (lepeophtheirus salmonis and caligus elongatus) and amoebic gill disease, on a commercial atlantic salmon (salmo salar) farm |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doi.org/10.1016/j.aqrep.2021.100703 https://doaj.org/article/d4998e9d8c284ba2b992f4934a243ce6 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Aquaculture Reports, Vol 20, Iss , Pp 100703- (2021) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2352513421001198 https://doaj.org/toc/2352-5134 2352-5134 doi:10.1016/j.aqrep.2021.100703 https://doaj.org/article/d4998e9d8c284ba2b992f4934a243ce6 |
op_doi |
https://doi.org/10.1016/j.aqrep.2021.100703 |
container_title |
Aquaculture Reports |
container_volume |
20 |
container_start_page |
100703 |
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1766360843582177280 |