'Snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impacts
- The infestation of farmed Atlantic salmon (Salmo salar) by ectoparasitic sea lice (Lepeophtheirus salmonis) presents a need for new approaches to parasite control. One option is the use of ‘snorkel’ sea lice barrier technology, which restricts salmon from accessing the surface except via a vertica...
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Online Access: | http://hdl.handle.net/11250/2409383 https://doi.org/10.1016/j.aquaculture.2016.02.014 |
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ftimr:oai:imr.brage.unit.no:11250/2409383 2024-09-15T17:56:15+00:00 'Snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impacts Stien, Lars Helge Dempster, Timothy David Bui, Samantha Glaropoulos, Alexis Fosseidengen, Jan Erik Wright, Daniel W. Oppedal, Frode 2016-08-24T12:08:13Z application/pdf http://hdl.handle.net/11250/2409383 https://doi.org/10.1016/j.aquaculture.2016.02.014 eng eng Elsevier Fiskeri- og havbruksnæringens forskningsfond: 900884 Aquaculture 2016, 458:29-37 urn:issn:0044-8486 http://hdl.handle.net/11250/2409383 https://doi.org/10.1016/j.aquaculture.2016.02.014 cristin:1368958 Navngivelse-DelPåSammeVilkår 3.0 Norge http://creativecommons.org/licenses/by-sa/3.0/no/ 29-37 458 Aquaculture VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Fiskehelse : 923 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Fish health: 923 Journal article Peer reviewed 2016 ftimr https://doi.org/10.1016/j.aquaculture.2016.02.014 2024-07-31T03:37:25Z - The infestation of farmed Atlantic salmon (Salmo salar) by ectoparasitic sea lice (Lepeophtheirus salmonis) presents a need for new approaches to parasite control. One option is the use of ‘snorkel’ sea lice barrier technology, which restricts salmon from accessing the surface except via a vertical chamber impermeable to sea lice larvae. This prevents the salmon from swimming at the depths where infective sea lice are most abundant. Before snorkels can be implemented in commercial sea-cages, knowledge is required about their effects on salmon welfare and growth. Here, we installed snorkels of 4 m depth into three 12 × 12 × 12 m3 cages, and recorded the lice infestation of stocked fish along with their growth, behaviour, and snout and fin condition over a 12-week period. Three standard sea-cages were utilised for comparison, and all six cages were stocked with ~ 3500 salmon (2.3 ± 0.6 kg). After 3, 6, 9, and 12 weeks, fish in snorkel cages had 65, 24, 43, and 56% lower lice levels than in standard cages, respectively. Salmon in both snorkel and standard cages grew similarly well and we detected little or no adverse effects on fish mortality or welfare. The results indicate that snorkel sea-cage barrier technology provides a promising new tool in parasite management in salmon aquaculture. Article in Journal/Newspaper Atlantic salmon Salmo salar Institute for Marine Research: Brage IMR Aquaculture 458 29 37 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Fiskehelse : 923 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Fish health: 923 |
spellingShingle |
VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Fiskehelse : 923 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Fish health: 923 Stien, Lars Helge Dempster, Timothy David Bui, Samantha Glaropoulos, Alexis Fosseidengen, Jan Erik Wright, Daniel W. Oppedal, Frode 'Snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impacts |
topic_facet |
VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Fiskehelse : 923 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Fish health: 923 |
description |
- The infestation of farmed Atlantic salmon (Salmo salar) by ectoparasitic sea lice (Lepeophtheirus salmonis) presents a need for new approaches to parasite control. One option is the use of ‘snorkel’ sea lice barrier technology, which restricts salmon from accessing the surface except via a vertical chamber impermeable to sea lice larvae. This prevents the salmon from swimming at the depths where infective sea lice are most abundant. Before snorkels can be implemented in commercial sea-cages, knowledge is required about their effects on salmon welfare and growth. Here, we installed snorkels of 4 m depth into three 12 × 12 × 12 m3 cages, and recorded the lice infestation of stocked fish along with their growth, behaviour, and snout and fin condition over a 12-week period. Three standard sea-cages were utilised for comparison, and all six cages were stocked with ~ 3500 salmon (2.3 ± 0.6 kg). After 3, 6, 9, and 12 weeks, fish in snorkel cages had 65, 24, 43, and 56% lower lice levels than in standard cages, respectively. Salmon in both snorkel and standard cages grew similarly well and we detected little or no adverse effects on fish mortality or welfare. The results indicate that snorkel sea-cage barrier technology provides a promising new tool in parasite management in salmon aquaculture. |
format |
Article in Journal/Newspaper |
author |
Stien, Lars Helge Dempster, Timothy David Bui, Samantha Glaropoulos, Alexis Fosseidengen, Jan Erik Wright, Daniel W. Oppedal, Frode |
author_facet |
Stien, Lars Helge Dempster, Timothy David Bui, Samantha Glaropoulos, Alexis Fosseidengen, Jan Erik Wright, Daniel W. Oppedal, Frode |
author_sort |
Stien, Lars Helge |
title |
'Snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impacts |
title_short |
'Snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impacts |
title_full |
'Snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impacts |
title_fullStr |
'Snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impacts |
title_full_unstemmed |
'Snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impacts |
title_sort |
'snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized atlantic salmon with minimal welfare impacts |
publisher |
Elsevier |
publishDate |
2016 |
url |
http://hdl.handle.net/11250/2409383 https://doi.org/10.1016/j.aquaculture.2016.02.014 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
29-37 458 Aquaculture |
op_relation |
Fiskeri- og havbruksnæringens forskningsfond: 900884 Aquaculture 2016, 458:29-37 urn:issn:0044-8486 http://hdl.handle.net/11250/2409383 https://doi.org/10.1016/j.aquaculture.2016.02.014 cristin:1368958 |
op_rights |
Navngivelse-DelPåSammeVilkår 3.0 Norge http://creativecommons.org/licenses/by-sa/3.0/no/ |
op_doi |
https://doi.org/10.1016/j.aquaculture.2016.02.014 |
container_title |
Aquaculture |
container_volume |
458 |
container_start_page |
29 |
op_container_end_page |
37 |
_version_ |
1810432457648898048 |