It works! Lumpfish can significantly lower sea lice infestation in large-scale salmon farming
To assess the efficacy of lumpfish grazing on attached sea lice on Atlantic salmon, six large-scale sea cages, (130 m circumference, 37,688 m3 volume) each stocked with approximately 200,000 salmon 0+ smolts, were stocked with a 4, 6 and 8% density (8000, 12,000 and 16,000, respectively) of lumpfish...
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The Company of Biologists
2018
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Online Access: | https://doi.org/10.1242/bio.036301 https://doaj.org/article/81a0bf65cf244d8b9e43ee623550399c |
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ftdoajarticles:oai:doaj.org/article:81a0bf65cf244d8b9e43ee623550399c 2023-05-15T15:30:28+02:00 It works! Lumpfish can significantly lower sea lice infestation in large-scale salmon farming Albert Kjartan Dagbjartarson Imsland Anna Hanssen Ane Vigdisdatter Nytrø Patrick Reynolds Thor Magne Jonassen Thor Arne Hangstad Tor Anders Elvegård Tonje Cecilie Urskog Bjørn Mikalsen 2018-09-01T00:00:00Z https://doi.org/10.1242/bio.036301 https://doaj.org/article/81a0bf65cf244d8b9e43ee623550399c EN eng The Company of Biologists http://bio.biologists.org/content/7/9/bio036301 https://doaj.org/toc/2046-6390 2046-6390 doi:10.1242/bio.036301 https://doaj.org/article/81a0bf65cf244d8b9e43ee623550399c Biology Open, Vol 7, Iss 9 (2018) Biological delousing Lumpfish Sea lice Atlantic salmon Science Q Biology (General) QH301-705.5 article 2018 ftdoajarticles https://doi.org/10.1242/bio.036301 2022-12-31T13:11:46Z To assess the efficacy of lumpfish grazing on attached sea lice on Atlantic salmon, six large-scale sea cages, (130 m circumference, 37,688 m3 volume) each stocked with approximately 200,000 salmon 0+ smolts, were stocked with a 4, 6 and 8% density (8000, 12,000 and 16,000, respectively) of lumpfish. The sea cages without lumpfish acted as controls. Sea lice infestation levels on the salmon were monitored weekly and bi-weekly from 6 October to 17 May the subsequent year. Mortality of the lumpfish rose with decreasing sea temperatures to around 0.8% week−1 and did not vary between the lumpfish groups. There were clear signs of lumpfish grazing on sea lice, with significantly lower average levels of chalimus, pre-adult and adult female Lepeophtheirus salmonis and Caligus elongatus sea lice per salmon. Lumpfish in the high density (8%) group reduced the mature female L. salmonis to levels equal to or lower than the counts recorded prior to the start of the study. Overall, the present results indicate that lumpfish are a suitable cold-water option for biological delousing of Atlantic salmon in large-scale production conditions. Article in Journal/Newspaper Atlantic salmon Directory of Open Access Journals: DOAJ Articles Biology Open 7 9 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Biological delousing Lumpfish Sea lice Atlantic salmon Science Q Biology (General) QH301-705.5 |
spellingShingle |
Biological delousing Lumpfish Sea lice Atlantic salmon Science Q Biology (General) QH301-705.5 Albert Kjartan Dagbjartarson Imsland Anna Hanssen Ane Vigdisdatter Nytrø Patrick Reynolds Thor Magne Jonassen Thor Arne Hangstad Tor Anders Elvegård Tonje Cecilie Urskog Bjørn Mikalsen It works! Lumpfish can significantly lower sea lice infestation in large-scale salmon farming |
topic_facet |
Biological delousing Lumpfish Sea lice Atlantic salmon Science Q Biology (General) QH301-705.5 |
description |
To assess the efficacy of lumpfish grazing on attached sea lice on Atlantic salmon, six large-scale sea cages, (130 m circumference, 37,688 m3 volume) each stocked with approximately 200,000 salmon 0+ smolts, were stocked with a 4, 6 and 8% density (8000, 12,000 and 16,000, respectively) of lumpfish. The sea cages without lumpfish acted as controls. Sea lice infestation levels on the salmon were monitored weekly and bi-weekly from 6 October to 17 May the subsequent year. Mortality of the lumpfish rose with decreasing sea temperatures to around 0.8% week−1 and did not vary between the lumpfish groups. There were clear signs of lumpfish grazing on sea lice, with significantly lower average levels of chalimus, pre-adult and adult female Lepeophtheirus salmonis and Caligus elongatus sea lice per salmon. Lumpfish in the high density (8%) group reduced the mature female L. salmonis to levels equal to or lower than the counts recorded prior to the start of the study. Overall, the present results indicate that lumpfish are a suitable cold-water option for biological delousing of Atlantic salmon in large-scale production conditions. |
format |
Article in Journal/Newspaper |
author |
Albert Kjartan Dagbjartarson Imsland Anna Hanssen Ane Vigdisdatter Nytrø Patrick Reynolds Thor Magne Jonassen Thor Arne Hangstad Tor Anders Elvegård Tonje Cecilie Urskog Bjørn Mikalsen |
author_facet |
Albert Kjartan Dagbjartarson Imsland Anna Hanssen Ane Vigdisdatter Nytrø Patrick Reynolds Thor Magne Jonassen Thor Arne Hangstad Tor Anders Elvegård Tonje Cecilie Urskog Bjørn Mikalsen |
author_sort |
Albert Kjartan Dagbjartarson Imsland |
title |
It works! Lumpfish can significantly lower sea lice infestation in large-scale salmon farming |
title_short |
It works! Lumpfish can significantly lower sea lice infestation in large-scale salmon farming |
title_full |
It works! Lumpfish can significantly lower sea lice infestation in large-scale salmon farming |
title_fullStr |
It works! Lumpfish can significantly lower sea lice infestation in large-scale salmon farming |
title_full_unstemmed |
It works! Lumpfish can significantly lower sea lice infestation in large-scale salmon farming |
title_sort |
it works! lumpfish can significantly lower sea lice infestation in large-scale salmon farming |
publisher |
The Company of Biologists |
publishDate |
2018 |
url |
https://doi.org/10.1242/bio.036301 https://doaj.org/article/81a0bf65cf244d8b9e43ee623550399c |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Biology Open, Vol 7, Iss 9 (2018) |
op_relation |
http://bio.biologists.org/content/7/9/bio036301 https://doaj.org/toc/2046-6390 2046-6390 doi:10.1242/bio.036301 https://doaj.org/article/81a0bf65cf244d8b9e43ee623550399c |
op_doi |
https://doi.org/10.1242/bio.036301 |
container_title |
Biology Open |
container_volume |
7 |
container_issue |
9 |
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1766360910341865472 |