Effects of Water Acidification on Senegalese Sole Solea senegalensis Health Status and Metabolic Rate: Implications for Immune Responses and Energy Use
Increasing water CO 2 , aquatic hypercapnia, leads to higher physiological pCO 2 levels in fish, resulting in an acidosis and compensatory acid-base regulatory response. Senegalese sole is currently farmed in super-intensive recirculating water systems where significant accumulation of CO 2 in the w...
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2020
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ftdtupubl:oai:pure.atira.dk:publications/32785bf4-06bc-4aaf-a11d-edfe7506068d 2024-09-15T18:28:22+00:00 Effects of Water Acidification on Senegalese Sole Solea senegalensis Health Status and Metabolic Rate: Implications for Immune Responses and Energy Use Machado, Marina F. S. Arenas, Francisco Svendsen, Jon Christian Azeredo, Rita Pfeifer, Louis J. Wilson, Jonathan M. Costas, Benjamín 2020 application/pdf https://orbit.dtu.dk/en/publications/32785bf4-06bc-4aaf-a11d-edfe7506068d https://doi.org/10.3389/fphys.2020.00026 https://backend.orbit.dtu.dk/ws/files/207209790/fphys_11_00026.pdf eng eng https://orbit.dtu.dk/en/publications/32785bf4-06bc-4aaf-a11d-edfe7506068d info:eu-repo/semantics/openAccess Machado , M F S , Arenas , F , Svendsen , J C , Azeredo , R , Pfeifer , L J , Wilson , J M & Costas , B 2020 , ' Effects of Water Acidification on Senegalese Sole Solea senegalensis Health Status and Metabolic Rate: Implications for Immune Responses and Energy Use ' , Frontiers in Physiology , vol. 11 , 26 . https://doi.org/10.3389/fphys.2020.00026 Water acidification Flatfish Gills immunofluorescence Respirometry Immune system /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2020 ftdtupubl https://doi.org/10.3389/fphys.2020.00026 2024-08-05T23:48:29Z Increasing water CO 2 , aquatic hypercapnia, leads to higher physiological pCO 2 levels in fish, resulting in an acidosis and compensatory acid-base regulatory response. Senegalese sole is currently farmed in super-intensive recirculating water systems where significant accumulation of CO 2 in the water may occur. Moreover, anthropogenic releases of CO 2 into the atmosphere are linked to ocean acidification. The present study was designed to assess the effects of acute (4 and 24 h) and prolonged exposure (4 weeks) to CO 2 driven acidification (i.e., pH 7.9, 7.6, and 7.3) from normocapnic seawater (pH 8.1) on the innate immune status, gill acid-base ion transporter expression and metabolic rate of juvenile Senegalese sole. The acute exposure to severe hypercapnia clearly affected gill physiology as observed by an increase of NHE3b positive ionocytes and a decrease of cell shape factor. Nonetheless only small physiological adjustments were observed at the systemic level with (1) a modulation of both plasma and skin humoral parameters and (2) an increased expression of HIF-1 expression pointing to an adjustment to the acidic environment even after a short period (i.e., hours). On the other hand, upon prolonged exposure, the expression of several pro-inflammatory and stress related genes was amplified and gill cell shape factor was aggravated with the continued increase of NHE3b positive ionocytes, ultimately impacting fish growth. While these findings indicate limited effects on energy use, deteriorating immune system conditions suggest that Senegalese sole is vulnerable to changes in CO2 and may be affected in aquaculture where a pH drop is more prominent. Further studies are required to investigate how larval and adult Senegalese sole are affected by changes in CO 2 . Article in Journal/Newspaper Ocean acidification Technical University of Denmark: DTU Orbit Frontiers in Physiology 11 |
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Open Polar |
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Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Water acidification Flatfish Gills immunofluorescence Respirometry Immune system /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Water acidification Flatfish Gills immunofluorescence Respirometry Immune system /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Machado, Marina F. S. Arenas, Francisco Svendsen, Jon Christian Azeredo, Rita Pfeifer, Louis J. Wilson, Jonathan M. Costas, Benjamín Effects of Water Acidification on Senegalese Sole Solea senegalensis Health Status and Metabolic Rate: Implications for Immune Responses and Energy Use |
topic_facet |
Water acidification Flatfish Gills immunofluorescence Respirometry Immune system /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
Increasing water CO 2 , aquatic hypercapnia, leads to higher physiological pCO 2 levels in fish, resulting in an acidosis and compensatory acid-base regulatory response. Senegalese sole is currently farmed in super-intensive recirculating water systems where significant accumulation of CO 2 in the water may occur. Moreover, anthropogenic releases of CO 2 into the atmosphere are linked to ocean acidification. The present study was designed to assess the effects of acute (4 and 24 h) and prolonged exposure (4 weeks) to CO 2 driven acidification (i.e., pH 7.9, 7.6, and 7.3) from normocapnic seawater (pH 8.1) on the innate immune status, gill acid-base ion transporter expression and metabolic rate of juvenile Senegalese sole. The acute exposure to severe hypercapnia clearly affected gill physiology as observed by an increase of NHE3b positive ionocytes and a decrease of cell shape factor. Nonetheless only small physiological adjustments were observed at the systemic level with (1) a modulation of both plasma and skin humoral parameters and (2) an increased expression of HIF-1 expression pointing to an adjustment to the acidic environment even after a short period (i.e., hours). On the other hand, upon prolonged exposure, the expression of several pro-inflammatory and stress related genes was amplified and gill cell shape factor was aggravated with the continued increase of NHE3b positive ionocytes, ultimately impacting fish growth. While these findings indicate limited effects on energy use, deteriorating immune system conditions suggest that Senegalese sole is vulnerable to changes in CO2 and may be affected in aquaculture where a pH drop is more prominent. Further studies are required to investigate how larval and adult Senegalese sole are affected by changes in CO 2 . |
format |
Article in Journal/Newspaper |
author |
Machado, Marina F. S. Arenas, Francisco Svendsen, Jon Christian Azeredo, Rita Pfeifer, Louis J. Wilson, Jonathan M. Costas, Benjamín |
author_facet |
Machado, Marina F. S. Arenas, Francisco Svendsen, Jon Christian Azeredo, Rita Pfeifer, Louis J. Wilson, Jonathan M. Costas, Benjamín |
author_sort |
Machado, Marina F. S. |
title |
Effects of Water Acidification on Senegalese Sole Solea senegalensis Health Status and Metabolic Rate: Implications for Immune Responses and Energy Use |
title_short |
Effects of Water Acidification on Senegalese Sole Solea senegalensis Health Status and Metabolic Rate: Implications for Immune Responses and Energy Use |
title_full |
Effects of Water Acidification on Senegalese Sole Solea senegalensis Health Status and Metabolic Rate: Implications for Immune Responses and Energy Use |
title_fullStr |
Effects of Water Acidification on Senegalese Sole Solea senegalensis Health Status and Metabolic Rate: Implications for Immune Responses and Energy Use |
title_full_unstemmed |
Effects of Water Acidification on Senegalese Sole Solea senegalensis Health Status and Metabolic Rate: Implications for Immune Responses and Energy Use |
title_sort |
effects of water acidification on senegalese sole solea senegalensis health status and metabolic rate: implications for immune responses and energy use |
publishDate |
2020 |
url |
https://orbit.dtu.dk/en/publications/32785bf4-06bc-4aaf-a11d-edfe7506068d https://doi.org/10.3389/fphys.2020.00026 https://backend.orbit.dtu.dk/ws/files/207209790/fphys_11_00026.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Machado , M F S , Arenas , F , Svendsen , J C , Azeredo , R , Pfeifer , L J , Wilson , J M & Costas , B 2020 , ' Effects of Water Acidification on Senegalese Sole Solea senegalensis Health Status and Metabolic Rate: Implications for Immune Responses and Energy Use ' , Frontiers in Physiology , vol. 11 , 26 . https://doi.org/10.3389/fphys.2020.00026 |
op_relation |
https://orbit.dtu.dk/en/publications/32785bf4-06bc-4aaf-a11d-edfe7506068d |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3389/fphys.2020.00026 |
container_title |
Frontiers in Physiology |
container_volume |
11 |
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1810469734005604352 |