Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean
Authors acknowledge the financial support of the Portuguese Foundation for the Science and Technology (FCT) through PhD grants to José Seco (SRFH/PD/BD/113487), Francesca Coppola (SFRH/BD/118582/2016) and Ângela Almeida (SFRH/BD/110218/2015), and the Portuguese Polar Program PROPOLAR. This study als...
Published in: | Marine Pollution Bulletin |
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Main Authors: | , , , , , , , , , , , , , , |
Other Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2022
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Online Access: | https://hdl.handle.net/10023/24862 https://doi.org/10.1016/j.marpolbul.2021.112178 |
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/24862 |
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Open Polar |
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University of St Andrews: Digital Research Repository |
op_collection_id |
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English |
topic |
Toxicity Biochemical performance Antioxidant capacity Baseline QH301 Biology T-NDAS AC QH301 |
spellingShingle |
Toxicity Biochemical performance Antioxidant capacity Baseline QH301 Biology T-NDAS AC QH301 Seco, José Freitas, Rosa Xavier, José C. Bustamante, Paco Coelho, João P. Coppola, Francesca Saunders, Ryan A. Almeida, Ângela Fielding, Sophie Pardal, Miguel A. Stowasser, Gabriele Pompeo, Giulia Tarling, Geraint A. Brierley, Andrew S. Pereira, Eduarda Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean |
topic_facet |
Toxicity Biochemical performance Antioxidant capacity Baseline QH301 Biology T-NDAS AC QH301 |
description |
Authors acknowledge the financial support of the Portuguese Foundation for the Science and Technology (FCT) through PhD grants to José Seco (SRFH/PD/BD/113487), Francesca Coppola (SFRH/BD/118582/2016) and Ângela Almeida (SFRH/BD/110218/2015), and the Portuguese Polar Program PROPOLAR. This study also benefited from the strategic program of MARE (Marine and Environmental Sciences Centre) financed by FCT (UIDB/04292/2020). João Pedro Coelho was funded by the Integrated Program of SR&TD ‘Smart Valorization of Endogenous Marine Biological Resources Under a Changing Climate’ (Centro-01-0145-FEDER-000018), co-funded by Centro 2020 program, Portugal 2020 and the European Regional Development Fund. Thanks are due for the financial support to CESAM (UIDB/50017/2020+UIDP/50017/2020) and REQUIMTE (UIDB/50006/2020). The Institut Universitaire de France (IUF) is acknowledged for its support to P. Bustamante as a Senior Member. RAS, SF, GS and GT were supported by the British Antarctic Surveys Ecosystem Programme, which is part of NERC and UKRI. Indicators of oxidative stress and metabolic capacity are key factors in understanding the fitness of wild populations. In the present study, these factors were evaluated in the pelagic Southern Ocean taxa Antarctic krill (Euphausia superba) and myctophid fish (Electrona antarctica, Gymnoscopelus braueri and G. nicholsi) to establish a baseline record for future studies. Mercury (Hg) concentrations were also analysed to evaluate its potential impacts on species biochemical performance. E. superba had higher metabolic activity than most of the myctophid species, which may explain the comparatively lower energy reserves found in the former. The activity of antioxidant enzymes showed, generally, a lower level in E. superba than in the myctophid species. The lack of any relationship between Hg concentrations and organisms' antioxidant and biotransformation defence mechanisms indicate that levels of Hg accumulated in the studied species were not high enough to affect their ... |
author2 |
University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Scottish Oceans Institute University of St Andrews. Pelagic Ecology Research Group University of St Andrews. Centre for Research into Ecological & Environmental Modelling University of St Andrews. School of Biology |
format |
Article in Journal/Newspaper |
author |
Seco, José Freitas, Rosa Xavier, José C. Bustamante, Paco Coelho, João P. Coppola, Francesca Saunders, Ryan A. Almeida, Ângela Fielding, Sophie Pardal, Miguel A. Stowasser, Gabriele Pompeo, Giulia Tarling, Geraint A. Brierley, Andrew S. Pereira, Eduarda |
author_facet |
Seco, José Freitas, Rosa Xavier, José C. Bustamante, Paco Coelho, João P. Coppola, Francesca Saunders, Ryan A. Almeida, Ângela Fielding, Sophie Pardal, Miguel A. Stowasser, Gabriele Pompeo, Giulia Tarling, Geraint A. Brierley, Andrew S. Pereira, Eduarda |
author_sort |
Seco, José |
title |
Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean |
title_short |
Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean |
title_full |
Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean |
title_fullStr |
Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean |
title_full_unstemmed |
Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean |
title_sort |
oxidative stress, metabolic activity and mercury concentrations in antarctic krill euphausia superba and myctophid fish of the southern ocean |
publishDate |
2022 |
url |
https://hdl.handle.net/10023/24862 https://doi.org/10.1016/j.marpolbul.2021.112178 |
genre |
Antarc* Antarctic Antarctic Krill Antarctica Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctica Euphausia superba Southern Ocean |
op_relation |
Marine Pollution Bulletin 273357476 6a5eced2-c379-45ab-bc66-2eb0ca0b801f 85102249313 000648437500004 Seco , J , Freitas , R , Xavier , J C , Bustamante , P , Coelho , J P , Coppola , F , Saunders , R A , Almeida , Â , Fielding , S , Pardal , M A , Stowasser , G , Pompeo , G , Tarling , G A , Brierley , A S & Pereira , E 2021 , ' Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean ' , Marine Pollution Bulletin , vol. 166 , 112178 . https://doi.org/10.1016/j.marpolbul.2021.112178 0025-326X RIS: urn:923600A3B5297C102AC64EAD22495A6C ORCID: /0000-0002-6438-6892/work/90951882 https://hdl.handle.net/10023/24862 doi:10.1016/j.marpolbul.2021.112178 |
op_doi |
https://doi.org/10.1016/j.marpolbul.2021.112178 |
container_title |
Marine Pollution Bulletin |
container_volume |
166 |
container_start_page |
112178 |
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1796935859656720384 |
spelling |
ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/24862 2024-04-21T07:52:40+00:00 Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean Seco, José Freitas, Rosa Xavier, José C. Bustamante, Paco Coelho, João P. Coppola, Francesca Saunders, Ryan A. Almeida, Ângela Fielding, Sophie Pardal, Miguel A. Stowasser, Gabriele Pompeo, Giulia Tarling, Geraint A. Brierley, Andrew S. Pereira, Eduarda University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Scottish Oceans Institute University of St Andrews. Pelagic Ecology Research Group University of St Andrews. Centre for Research into Ecological & Environmental Modelling University of St Andrews. School of Biology 2022-02-13 7 567221 application/pdf https://hdl.handle.net/10023/24862 https://doi.org/10.1016/j.marpolbul.2021.112178 eng eng Marine Pollution Bulletin 273357476 6a5eced2-c379-45ab-bc66-2eb0ca0b801f 85102249313 000648437500004 Seco , J , Freitas , R , Xavier , J C , Bustamante , P , Coelho , J P , Coppola , F , Saunders , R A , Almeida , Â , Fielding , S , Pardal , M A , Stowasser , G , Pompeo , G , Tarling , G A , Brierley , A S & Pereira , E 2021 , ' Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean ' , Marine Pollution Bulletin , vol. 166 , 112178 . https://doi.org/10.1016/j.marpolbul.2021.112178 0025-326X RIS: urn:923600A3B5297C102AC64EAD22495A6C ORCID: /0000-0002-6438-6892/work/90951882 https://hdl.handle.net/10023/24862 doi:10.1016/j.marpolbul.2021.112178 Toxicity Biochemical performance Antioxidant capacity Baseline QH301 Biology T-NDAS AC QH301 Journal article 2022 ftstandrewserep https://doi.org/10.1016/j.marpolbul.2021.112178 2024-03-27T15:07:39Z Authors acknowledge the financial support of the Portuguese Foundation for the Science and Technology (FCT) through PhD grants to José Seco (SRFH/PD/BD/113487), Francesca Coppola (SFRH/BD/118582/2016) and Ângela Almeida (SFRH/BD/110218/2015), and the Portuguese Polar Program PROPOLAR. This study also benefited from the strategic program of MARE (Marine and Environmental Sciences Centre) financed by FCT (UIDB/04292/2020). João Pedro Coelho was funded by the Integrated Program of SR&TD ‘Smart Valorization of Endogenous Marine Biological Resources Under a Changing Climate’ (Centro-01-0145-FEDER-000018), co-funded by Centro 2020 program, Portugal 2020 and the European Regional Development Fund. Thanks are due for the financial support to CESAM (UIDB/50017/2020+UIDP/50017/2020) and REQUIMTE (UIDB/50006/2020). The Institut Universitaire de France (IUF) is acknowledged for its support to P. Bustamante as a Senior Member. RAS, SF, GS and GT were supported by the British Antarctic Surveys Ecosystem Programme, which is part of NERC and UKRI. Indicators of oxidative stress and metabolic capacity are key factors in understanding the fitness of wild populations. In the present study, these factors were evaluated in the pelagic Southern Ocean taxa Antarctic krill (Euphausia superba) and myctophid fish (Electrona antarctica, Gymnoscopelus braueri and G. nicholsi) to establish a baseline record for future studies. Mercury (Hg) concentrations were also analysed to evaluate its potential impacts on species biochemical performance. E. superba had higher metabolic activity than most of the myctophid species, which may explain the comparatively lower energy reserves found in the former. The activity of antioxidant enzymes showed, generally, a lower level in E. superba than in the myctophid species. The lack of any relationship between Hg concentrations and organisms' antioxidant and biotransformation defence mechanisms indicate that levels of Hg accumulated in the studied species were not high enough to affect their ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctica Euphausia superba Southern Ocean University of St Andrews: Digital Research Repository Marine Pollution Bulletin 166 112178 |