Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in brackish water recirculating aquaculture system
This study investigated the biological consequences of 45-day continuous ozonation on Atlantic salmon (Salmo salar) post-smolts in a brackish water recirculating aquaculture system (RAS). There was no significant difference in survival, operational welfare indicators, and average weight at terminati...
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ftnofima:oai:nofima.brage.unit.no:11250/2771345 2023-05-15T15:31:53+02:00 Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in brackish water recirculating aquaculture system Lazado, Carlo C. Stiller, Kevin Torben Reiten, Britt Kristin Megård Osório, João Kolarevic, Jelena Johansen, Lill-Heidi 2021 application/pdf https://hdl.handle.net/11250/2771345 https://doi.org/10.1016/j.aquatox.2021.105935 eng eng Norges forskningsråd: 237856 Aquatic Toxicology. 2021, 238 1-11. urn:issn:0166-445X https://hdl.handle.net/11250/2771345 https://doi.org/10.1016/j.aquatox.2021.105935 cristin:1924592 1-11 238 Aquatic Toxicology Peer reviewed Journal article 2021 ftnofima https://doi.org/10.1016/j.aquatox.2021.105935 2022-11-18T06:51:12Z This study investigated the biological consequences of 45-day continuous ozonation on Atlantic salmon (Salmo salar) post-smolts in a brackish water recirculating aquaculture system (RAS). There was no significant difference in survival, operational welfare indicators, and average weight at termination between the ozone-treated and control groups. Plasma biochemical analyses revealed that the creatinine level was significantly higher in the ozone-treated group than in the control at termination. Histological evaluation of skin health showed no significant difference between the two groups. On the other hand, quantitative histopathology disclosed that the ozone group exhibited a better gill health status than did the control group, particularly at the end of the trial. Mucosal transcriptomics revealed a distinct response profile between the gills and skin. At day 45, there were no differentially expressed genes (DEG) identified in the skin, in contrast to 242 ozone-induced DEGs in the gills. Assessment of the transcriptomic profiles over time revealed that temporal effects were of greater impact in skin compared to gills, regardless of the treatment. The treatment did not result in metabolomic dysregulation and the overall profile lent support to the transcriptomics data that temporal effects had a greater influence on the changes observed. Exposure to handling-confinement stress revealed that ozone treatment did not alter the ability of post-smolts to respond to a secondary stressor. In summary, the suite of health and welfare indicators collectively indicated that continuous ozonation resulted in minimal physiological perturbations in salmon post-smolts. The results are expected to contribute to optimising the rearing conditions for post-smolts in RAS. publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar Nofima Knowledge Archive (Brage) Lent ENVELOPE(-66.783,-66.783,-66.867,-66.867) Aquatic Toxicology 238 105935 |
institution |
Open Polar |
collection |
Nofima Knowledge Archive (Brage) |
op_collection_id |
ftnofima |
language |
English |
description |
This study investigated the biological consequences of 45-day continuous ozonation on Atlantic salmon (Salmo salar) post-smolts in a brackish water recirculating aquaculture system (RAS). There was no significant difference in survival, operational welfare indicators, and average weight at termination between the ozone-treated and control groups. Plasma biochemical analyses revealed that the creatinine level was significantly higher in the ozone-treated group than in the control at termination. Histological evaluation of skin health showed no significant difference between the two groups. On the other hand, quantitative histopathology disclosed that the ozone group exhibited a better gill health status than did the control group, particularly at the end of the trial. Mucosal transcriptomics revealed a distinct response profile between the gills and skin. At day 45, there were no differentially expressed genes (DEG) identified in the skin, in contrast to 242 ozone-induced DEGs in the gills. Assessment of the transcriptomic profiles over time revealed that temporal effects were of greater impact in skin compared to gills, regardless of the treatment. The treatment did not result in metabolomic dysregulation and the overall profile lent support to the transcriptomics data that temporal effects had a greater influence on the changes observed. Exposure to handling-confinement stress revealed that ozone treatment did not alter the ability of post-smolts to respond to a secondary stressor. In summary, the suite of health and welfare indicators collectively indicated that continuous ozonation resulted in minimal physiological perturbations in salmon post-smolts. The results are expected to contribute to optimising the rearing conditions for post-smolts in RAS. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Lazado, Carlo C. Stiller, Kevin Torben Reiten, Britt Kristin Megård Osório, João Kolarevic, Jelena Johansen, Lill-Heidi |
spellingShingle |
Lazado, Carlo C. Stiller, Kevin Torben Reiten, Britt Kristin Megård Osório, João Kolarevic, Jelena Johansen, Lill-Heidi Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in brackish water recirculating aquaculture system |
author_facet |
Lazado, Carlo C. Stiller, Kevin Torben Reiten, Britt Kristin Megård Osório, João Kolarevic, Jelena Johansen, Lill-Heidi |
author_sort |
Lazado, Carlo C. |
title |
Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in brackish water recirculating aquaculture system |
title_short |
Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in brackish water recirculating aquaculture system |
title_full |
Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in brackish water recirculating aquaculture system |
title_fullStr |
Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in brackish water recirculating aquaculture system |
title_full_unstemmed |
Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in brackish water recirculating aquaculture system |
title_sort |
consequences of continuous ozonation on the health and welfare of atlantic salmon post-smolts in brackish water recirculating aquaculture system |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2771345 https://doi.org/10.1016/j.aquatox.2021.105935 |
long_lat |
ENVELOPE(-66.783,-66.783,-66.867,-66.867) |
geographic |
Lent |
geographic_facet |
Lent |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
1-11 238 Aquatic Toxicology |
op_relation |
Norges forskningsråd: 237856 Aquatic Toxicology. 2021, 238 1-11. urn:issn:0166-445X https://hdl.handle.net/11250/2771345 https://doi.org/10.1016/j.aquatox.2021.105935 cristin:1924592 |
op_doi |
https://doi.org/10.1016/j.aquatox.2021.105935 |
container_title |
Aquatic Toxicology |
container_volume |
238 |
container_start_page |
105935 |
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1766362382842462208 |