Table_3_Exposing Atlantic Salmon Post-Smolts to Fluctuating Sublethal Nitrite Concentrations in a Commercial Recirculating Aquaculture System (RAS) May Have Negative Consequences.xlsx
Salmon farmers are interested in extending the time post-smolts are reared in recirculating aquaculture systems (RAS). However, there is a lack of knowledge regarding optimal water quality for post-smolts in RAS, and regarding potential consequences of long term exposure to different toxic compounds...
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Online Access: | https://doi.org/10.3389/fanim.2022.886071.s005 https://figshare.com/articles/dataset/Table_3_Exposing_Atlantic_Salmon_Post-Smolts_to_Fluctuating_Sublethal_Nitrite_Concentrations_in_a_Commercial_Recirculating_Aquaculture_System_RAS_May_Have_Negative_Consequences_xlsx/21207629 |
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ftfrontimediafig:oai:figshare.com:article/21207629 2024-09-15T17:55:48+00:00 Table_3_Exposing Atlantic Salmon Post-Smolts to Fluctuating Sublethal Nitrite Concentrations in a Commercial Recirculating Aquaculture System (RAS) May Have Negative Consequences.xlsx Heidi S. Mortensen Elin Jacobsen Jelena Kolarevic Amanda Vang 2022-09-26T15:27:19Z https://doi.org/10.3389/fanim.2022.886071.s005 https://figshare.com/articles/dataset/Table_3_Exposing_Atlantic_Salmon_Post-Smolts_to_Fluctuating_Sublethal_Nitrite_Concentrations_in_a_Commercial_Recirculating_Aquaculture_System_RAS_May_Have_Negative_Consequences_xlsx/21207629 unknown doi:10.3389/fanim.2022.886071.s005 https://figshare.com/articles/dataset/Table_3_Exposing_Atlantic_Salmon_Post-Smolts_to_Fluctuating_Sublethal_Nitrite_Concentrations_in_a_Commercial_Recirculating_Aquaculture_System_RAS_May_Have_Negative_Consequences_xlsx/21207629 CC BY 4.0 Hematology Farm Management Rural Management and Agribusiness Animal Breeding Animal Management Humane Animal Treatment post-smolt Atlantic Salmon fresh water RAS water quality fluctuating nitrite concentration hyperkalaemia chloride Dataset 2022 ftfrontimediafig https://doi.org/10.3389/fanim.2022.886071.s005 2024-08-19T06:19:49Z Salmon farmers are interested in extending the time post-smolts are reared in recirculating aquaculture systems (RAS). However, there is a lack of knowledge regarding optimal water quality for post-smolts in RAS, and regarding potential consequences of long term exposure to different toxic compounds, such as nitrite, in the RAS water. To address this issue, we conducted a case study at a Faroese Atlantic salmon farm, that rears large post-smolts in fresh water RAS for 22 months before sea transfer, with no additional chloride salt, a known treatment for nitrite toxicity. The aim was to document the potential effects of long-term exposure of fluctuating sub-lethal nitrite concentrations in fresh water RAS on blood physiology of large post-smolts. The study was conducted over six weeks, at the end of the RAS production cycle. Our case study shows that after ~22 months in RAS with no additional chloride, the fish had accumulated a plasma nitrite concentration 8 to 16 times higher than the ambient water. Our results indicate that the accumulation may have resulted in extracellular hyperkaliemia, since there was a positive correlation between plasma nitrite and potassium levels (p=0.00095), with potassium levels almost twice as high than previously reported for Atlantic salmon. This could indicate that Atlantic salmon health is challenged due to prolonged sub-lethal nitrite exposure in fresh water RAS. Further research related to long-term nitrite exposure in RAS is needed to asses the potential negative impact, in order to optimize welfare and growth performance during production of Atlantic salmon post-smolts. Dataset Atlantic salmon Frontiers: Figshare |
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Open Polar |
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Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Hematology Farm Management Rural Management and Agribusiness Animal Breeding Animal Management Humane Animal Treatment post-smolt Atlantic Salmon fresh water RAS water quality fluctuating nitrite concentration hyperkalaemia chloride |
spellingShingle |
Hematology Farm Management Rural Management and Agribusiness Animal Breeding Animal Management Humane Animal Treatment post-smolt Atlantic Salmon fresh water RAS water quality fluctuating nitrite concentration hyperkalaemia chloride Heidi S. Mortensen Elin Jacobsen Jelena Kolarevic Amanda Vang Table_3_Exposing Atlantic Salmon Post-Smolts to Fluctuating Sublethal Nitrite Concentrations in a Commercial Recirculating Aquaculture System (RAS) May Have Negative Consequences.xlsx |
topic_facet |
Hematology Farm Management Rural Management and Agribusiness Animal Breeding Animal Management Humane Animal Treatment post-smolt Atlantic Salmon fresh water RAS water quality fluctuating nitrite concentration hyperkalaemia chloride |
description |
Salmon farmers are interested in extending the time post-smolts are reared in recirculating aquaculture systems (RAS). However, there is a lack of knowledge regarding optimal water quality for post-smolts in RAS, and regarding potential consequences of long term exposure to different toxic compounds, such as nitrite, in the RAS water. To address this issue, we conducted a case study at a Faroese Atlantic salmon farm, that rears large post-smolts in fresh water RAS for 22 months before sea transfer, with no additional chloride salt, a known treatment for nitrite toxicity. The aim was to document the potential effects of long-term exposure of fluctuating sub-lethal nitrite concentrations in fresh water RAS on blood physiology of large post-smolts. The study was conducted over six weeks, at the end of the RAS production cycle. Our case study shows that after ~22 months in RAS with no additional chloride, the fish had accumulated a plasma nitrite concentration 8 to 16 times higher than the ambient water. Our results indicate that the accumulation may have resulted in extracellular hyperkaliemia, since there was a positive correlation between plasma nitrite and potassium levels (p=0.00095), with potassium levels almost twice as high than previously reported for Atlantic salmon. This could indicate that Atlantic salmon health is challenged due to prolonged sub-lethal nitrite exposure in fresh water RAS. Further research related to long-term nitrite exposure in RAS is needed to asses the potential negative impact, in order to optimize welfare and growth performance during production of Atlantic salmon post-smolts. |
format |
Dataset |
author |
Heidi S. Mortensen Elin Jacobsen Jelena Kolarevic Amanda Vang |
author_facet |
Heidi S. Mortensen Elin Jacobsen Jelena Kolarevic Amanda Vang |
author_sort |
Heidi S. Mortensen |
title |
Table_3_Exposing Atlantic Salmon Post-Smolts to Fluctuating Sublethal Nitrite Concentrations in a Commercial Recirculating Aquaculture System (RAS) May Have Negative Consequences.xlsx |
title_short |
Table_3_Exposing Atlantic Salmon Post-Smolts to Fluctuating Sublethal Nitrite Concentrations in a Commercial Recirculating Aquaculture System (RAS) May Have Negative Consequences.xlsx |
title_full |
Table_3_Exposing Atlantic Salmon Post-Smolts to Fluctuating Sublethal Nitrite Concentrations in a Commercial Recirculating Aquaculture System (RAS) May Have Negative Consequences.xlsx |
title_fullStr |
Table_3_Exposing Atlantic Salmon Post-Smolts to Fluctuating Sublethal Nitrite Concentrations in a Commercial Recirculating Aquaculture System (RAS) May Have Negative Consequences.xlsx |
title_full_unstemmed |
Table_3_Exposing Atlantic Salmon Post-Smolts to Fluctuating Sublethal Nitrite Concentrations in a Commercial Recirculating Aquaculture System (RAS) May Have Negative Consequences.xlsx |
title_sort |
table_3_exposing atlantic salmon post-smolts to fluctuating sublethal nitrite concentrations in a commercial recirculating aquaculture system (ras) may have negative consequences.xlsx |
publishDate |
2022 |
url |
https://doi.org/10.3389/fanim.2022.886071.s005 https://figshare.com/articles/dataset/Table_3_Exposing_Atlantic_Salmon_Post-Smolts_to_Fluctuating_Sublethal_Nitrite_Concentrations_in_a_Commercial_Recirculating_Aquaculture_System_RAS_May_Have_Negative_Consequences_xlsx/21207629 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
doi:10.3389/fanim.2022.886071.s005 https://figshare.com/articles/dataset/Table_3_Exposing_Atlantic_Salmon_Post-Smolts_to_Fluctuating_Sublethal_Nitrite_Concentrations_in_a_Commercial_Recirculating_Aquaculture_System_RAS_May_Have_Negative_Consequences_xlsx/21207629 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fanim.2022.886071.s005 |
_version_ |
1810432021660434432 |