Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in a brackish water recirculating aquaculture system
Research Areas: Marine & Freshwater Biology Toxicology 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, oper...
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ftunivtecnical:oai:www.repository.utl.pt:10400.5/22470 2023-05-15T15:31:53+02:00 Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in a brackish water recirculating aquaculture system Lazado, Carlo C. Stiller, Stiller, Kevin T. Reiten, Britt-Kristin Megard Osório, João Kolarevic, Jelena Johansen, Lill-Heidi 2021-08-08 http://hdl.handle.net/10400.5/22470 https://doi.org/10.1016/j.aquatox.2021.105935 eng eng ELSEVIER 237856/O30 https://www.sciencedirect.com/science/article/pii/S0166445X21001946?via%3Dihub Lazado CC, Stiller KT, Reiten BKM, Osorio J, Kolarevic J, Johansen LH. 2021. Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in a brackish water recirculating aquaculture system. Aquatic Toxicology 238:105935. DOI:10.1016/j.aquatox.2021.105935 0166-445X http://hdl.handle.net/10400.5/22470 doi:10.1016/j.aquatox.2021.105935 1879-1514 openAccess Gill health Mucosal health Oxidative stress Recirculation aquaculture system Water treatment article 2021 ftunivtecnical https://doi.org/10.1016/j.aquatox.2021.105935 2021-11-10T01:09:19Z Research Areas: Marine & Freshwater Biology Toxicology 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 postsmolts. The results are expected to contribute to optimising the rearing conditions for post-smolts in RAS. info:eu-repo/semantics/publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar Technical University of Lisbon: UTL Repository Lent ENVELOPE(-66.783,-66.783,-66.867,-66.867) Aquatic Toxicology 238 105935 |
institution |
Open Polar |
collection |
Technical University of Lisbon: UTL Repository |
op_collection_id |
ftunivtecnical |
language |
English |
topic |
Gill health Mucosal health Oxidative stress Recirculation aquaculture system Water treatment |
spellingShingle |
Gill health Mucosal health Oxidative stress Recirculation aquaculture system Water treatment Lazado, Carlo C. Stiller, Stiller, Kevin T. Reiten, Britt-Kristin Megard Osório, João Kolarevic, Jelena Johansen, Lill-Heidi Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in a brackish water recirculating aquaculture system |
topic_facet |
Gill health Mucosal health Oxidative stress Recirculation aquaculture system Water treatment |
description |
Research Areas: Marine & Freshwater Biology Toxicology 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 postsmolts. The results are expected to contribute to optimising the rearing conditions for post-smolts in RAS. info:eu-repo/semantics/publishedVersion |
format |
Article in Journal/Newspaper |
author |
Lazado, Carlo C. Stiller, Stiller, Kevin T. Reiten, Britt-Kristin Megard Osório, João Kolarevic, Jelena Johansen, Lill-Heidi |
author_facet |
Lazado, Carlo C. Stiller, Stiller, Kevin T. Reiten, Britt-Kristin Megard 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 a brackish water recirculating aquaculture system |
title_short |
Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in a brackish water recirculating aquaculture system |
title_full |
Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in a brackish water recirculating aquaculture system |
title_fullStr |
Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in a brackish water recirculating aquaculture system |
title_full_unstemmed |
Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in a brackish water recirculating aquaculture system |
title_sort |
consequences of continuous ozonation on the health and welfare of atlantic salmon post-smolts in a brackish water recirculating aquaculture system |
publisher |
ELSEVIER |
publishDate |
2021 |
url |
http://hdl.handle.net/10400.5/22470 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_relation |
237856/O30 https://www.sciencedirect.com/science/article/pii/S0166445X21001946?via%3Dihub Lazado CC, Stiller KT, Reiten BKM, Osorio J, Kolarevic J, Johansen LH. 2021. Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in a brackish water recirculating aquaculture system. Aquatic Toxicology 238:105935. DOI:10.1016/j.aquatox.2021.105935 0166-445X http://hdl.handle.net/10400.5/22470 doi:10.1016/j.aquatox.2021.105935 1879-1514 |
op_rights |
openAccess |
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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1766362379455561728 |