CO2 induced seawater acidification impacts survival and development of European eel embryos
Fish embryos may be vulnerable to seawater acidification resulting from anthropogenic carbon dioxide (CO2) emissions or from excessive biological CO2 production in aquaculture systems. This study investigated CO2 effects on embryos of the European eel (Anguilla anguilla), a catadromous fish that is...
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2022
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ftopenagrar:oai:www.openagrar.de:openagrar_mods_00085640 2024-09-15T17:39:45+00:00 CO2 induced seawater acidification impacts survival and development of European eel embryos Sganga, Daniela E. Dahlke, Flemming T. Soerensen, Sune R. Butts, Ian A. E. Tomkiewicz, Jonna Mazurais, David Servili, Arianna Bertolini, Francesca Politis, Sebastian N. 2022 https://doi.org/10.1371/journal.pone.0267228 https://www.openagrar.de/receive/openagrar_mods_00085640 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00051662/dn065835.pdf eng eng PLOS ONE -- PLoS One -- PLoS one -- PLoS ONE -- 1932-6203 -- 2267670-3 -- http://journals.plos.org/plosone/ -- https://www.ncbi.nlm.nih.gov/pmc/journals/440/ -- http://www.bibliothek.uni-regensburg.de/ezeit/?2267670 https://doi.org/10.1371/journal.pone.0267228 https://www.openagrar.de/receive/openagrar_mods_00085640 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00051662/dn065835.pdf public https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Text article ddc:590 ddc:363.7 article Text doc-type:article 2022 ftopenagrar https://doi.org/10.1371/journal.pone.0267228 2024-07-08T23:56:24Z Fish embryos may be vulnerable to seawater acidification resulting from anthropogenic carbon dioxide (CO2) emissions or from excessive biological CO2 production in aquaculture systems. This study investigated CO2 effects on embryos of the European eel (Anguilla anguilla), a catadromous fish that is considered at risk from climate change and that is targeted for hatchery production to sustain aquaculture of the species. Eel embryos were reared in three independent recirculation systems with different pH/CO2 levels representing “control” (pH 8.1, 300 µatm CO2), end-of-century climate change (“intermediate”, pH 7.6, 900 µatm CO2) and “extreme” aquaculture conditions (pH 7.1, 3000 µatm CO2). Sensitivity analyses were conducted at 4, 24, and 48 hours post-fertilization (hpf) by focusing on development, survival, and expression of genes related to acute stress response (crhr1, crfr2), stress/repair response (hsp70, hsp90), water and solute transport (aqp1, aqp3), acid-base regulation (nkcc1a, ncc, car15), and inhibitory neurotransmission (GABAAa6b, Gabra1). Results revealed that embryos developing at intermediate pH showed similar survival rates to the control, but egg swelling was impaired, resulting in a reduction in egg size with decreasing pH. Embryos exposed to extreme pH had 0.6-fold decrease in survival at 24 hpf and a 0.3-fold change at 48 compared to the control. These observed effects of acidification were not reflected by changes in expression of any of the here studied genes. On the contrary, differential expression was observed along embryonic development independent of treatment, indicating that the underlying regulating systems are under development and that embryos are limited in their ability to regulate molecular responses to acidification. In conclusion, exposure to predicted end-of-century ocean pCO2 conditions may affect normal development of this species in nature during sensitive early life history stages with limited physiological response capacities, while extreme acidification will negatively ... Article in Journal/Newspaper Anguilla anguilla European eel OpenAgrar (OA) PLOS ONE 17 4 e0267228 |
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Text article ddc:590 ddc:363.7 |
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Text article ddc:590 ddc:363.7 Sganga, Daniela E. Dahlke, Flemming T. Soerensen, Sune R. Butts, Ian A. E. Tomkiewicz, Jonna Mazurais, David Servili, Arianna Bertolini, Francesca Politis, Sebastian N. CO2 induced seawater acidification impacts survival and development of European eel embryos |
topic_facet |
Text article ddc:590 ddc:363.7 |
description |
Fish embryos may be vulnerable to seawater acidification resulting from anthropogenic carbon dioxide (CO2) emissions or from excessive biological CO2 production in aquaculture systems. This study investigated CO2 effects on embryos of the European eel (Anguilla anguilla), a catadromous fish that is considered at risk from climate change and that is targeted for hatchery production to sustain aquaculture of the species. Eel embryos were reared in three independent recirculation systems with different pH/CO2 levels representing “control” (pH 8.1, 300 µatm CO2), end-of-century climate change (“intermediate”, pH 7.6, 900 µatm CO2) and “extreme” aquaculture conditions (pH 7.1, 3000 µatm CO2). Sensitivity analyses were conducted at 4, 24, and 48 hours post-fertilization (hpf) by focusing on development, survival, and expression of genes related to acute stress response (crhr1, crfr2), stress/repair response (hsp70, hsp90), water and solute transport (aqp1, aqp3), acid-base regulation (nkcc1a, ncc, car15), and inhibitory neurotransmission (GABAAa6b, Gabra1). Results revealed that embryos developing at intermediate pH showed similar survival rates to the control, but egg swelling was impaired, resulting in a reduction in egg size with decreasing pH. Embryos exposed to extreme pH had 0.6-fold decrease in survival at 24 hpf and a 0.3-fold change at 48 compared to the control. These observed effects of acidification were not reflected by changes in expression of any of the here studied genes. On the contrary, differential expression was observed along embryonic development independent of treatment, indicating that the underlying regulating systems are under development and that embryos are limited in their ability to regulate molecular responses to acidification. In conclusion, exposure to predicted end-of-century ocean pCO2 conditions may affect normal development of this species in nature during sensitive early life history stages with limited physiological response capacities, while extreme acidification will negatively ... |
format |
Article in Journal/Newspaper |
author |
Sganga, Daniela E. Dahlke, Flemming T. Soerensen, Sune R. Butts, Ian A. E. Tomkiewicz, Jonna Mazurais, David Servili, Arianna Bertolini, Francesca Politis, Sebastian N. |
author_facet |
Sganga, Daniela E. Dahlke, Flemming T. Soerensen, Sune R. Butts, Ian A. E. Tomkiewicz, Jonna Mazurais, David Servili, Arianna Bertolini, Francesca Politis, Sebastian N. |
author_sort |
Sganga, Daniela E. |
title |
CO2 induced seawater acidification impacts survival and development of European eel embryos |
title_short |
CO2 induced seawater acidification impacts survival and development of European eel embryos |
title_full |
CO2 induced seawater acidification impacts survival and development of European eel embryos |
title_fullStr |
CO2 induced seawater acidification impacts survival and development of European eel embryos |
title_full_unstemmed |
CO2 induced seawater acidification impacts survival and development of European eel embryos |
title_sort |
co2 induced seawater acidification impacts survival and development of european eel embryos |
publishDate |
2022 |
url |
https://doi.org/10.1371/journal.pone.0267228 https://www.openagrar.de/receive/openagrar_mods_00085640 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00051662/dn065835.pdf |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_relation |
PLOS ONE -- PLoS One -- PLoS one -- PLoS ONE -- 1932-6203 -- 2267670-3 -- http://journals.plos.org/plosone/ -- https://www.ncbi.nlm.nih.gov/pmc/journals/440/ -- http://www.bibliothek.uni-regensburg.de/ezeit/?2267670 https://doi.org/10.1371/journal.pone.0267228 https://www.openagrar.de/receive/openagrar_mods_00085640 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00051662/dn065835.pdf |
op_rights |
public https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0267228 |
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PLOS ONE |
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e0267228 |
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