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Santos D, Leite C, Pinto J, Soares AMVM, Pereira E, Freitas R. How will different scenarios of rising seawater temperature alter the response of marine species to lithium? Sci Total Environ 2023; 856:158728. [PMID: 36108826 DOI: 10.1016/j.scitotenv.2022.158728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/22/2022] [Accepted: 09/09/2022] [Indexed: 06/15/2023]
Abstract
Marine ecosystems are suffering from the gradual rise in temperature due to climate change. Warming scenarios and the intensification of extreme climate events, such as marine heatwaves (MHWs), have been negatively affecting marine organisms. In addition, they are also threatened by anthropogenic pollution. Lithium (Li) is an emerging pollutant that has become a major concern due to its increasing use in a variety of applications. Understanding its influence on marine environments in combination with warming scenarios is crucial, as very little is known about its impact on marine organisms, especially when also considering the increasingly concerning impacts of climate change. With this in mind, this research aimed to assess how different scenarios of increasing temperature may affect the response of Mytilus galloprovincialis to Li. Mussels bioaccumulation levels, as well as physiological and biochemical biomarkers were analyzed after 28 days of exposure to Li under different temperature scenarios (control - 17 °C; warming - 21 °C and marine heatwave - MHW). The results indicate that mussels accumulated Li, independently of the temperature scenario. The respiration rate was higher in contaminated mussels than in the non-contaminated ones, with no differences among temperature scenarios. Furthermore, the metabolic rate decreased in non-contaminated mussels exposed to 21 °C and MHW, while mussels exposed to the combination of Li and MHW presented the highest metabolic rate. The mussels exposed to MHW and Li evidenced the highest cellular damage but Li was not neurotoxic in M. galloprovincialis. This study highlighted that MHW + Li was the most stressful condition, inducing clear negative effects in this species that can impair the growth and reproduction of an entire population. In general, the presented results highlight the importance of future studies in which it is necessary to combine the effects of pollutants and climate change scenarios, namely extreme weather events such as MHWs.
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Affiliation(s)
- Daniel Santos
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Carla Leite
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - João Pinto
- Departamento de Química & REQUIMTE, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Amadeu M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Eduarda Pereira
- Departamento de Química & REQUIMTE, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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Seco J, Freitas R, Xavier JC, Bustamante P, Coelho JP, Coppola F, Saunders RA, Almeida Â, Fielding S, Pardal MA, Stowasser G, Pompeo G, Tarling GA, Brierley AS, Pereira E. Oxidative stress, metabolic activity and mercury concentrations in Antarctic krill Euphausia superba and myctophid fish of the Southern Ocean. Mar Pollut Bull 2021; 166:112178. [PMID: 33721686 DOI: 10.1016/j.marpolbul.2021.112178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 02/10/2021] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
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 biochemical processes adversely.
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Affiliation(s)
- José Seco
- Department of Chemistry & CESAM/REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal; Pelagic Ecology Research Group, Scottish Oceans Institute, Gatty Marine Laboratory, School of Biology, University of St Andrews, St Andrews KY16 8LB, Scotland, UK
| | - Rosa Freitas
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - José C Xavier
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK; MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS - La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France; Institut Universitaire de France (IUF), 1 rue Descartes, 75005 Paris, France
| | - João P Coelho
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Francesca Coppola
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ryan A Saunders
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK
| | - Ângela Almeida
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Sophie Fielding
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK
| | - Miguel A Pardal
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Gabriele Stowasser
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK
| | - Giulia Pompeo
- Department of Chemistry & CESAM/REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Geraint A Tarling
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK
| | - Andrew S Brierley
- Pelagic Ecology Research Group, Scottish Oceans Institute, Gatty Marine Laboratory, School of Biology, University of St Andrews, St Andrews KY16 8LB, Scotland, UK
| | - Eduarda Pereira
- Department of Chemistry & CESAM/REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal; Department of Chemistry & REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
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Liu Y, Guo R, Tang S, Zhu F, Zhang S, Yan Z, Chen J. Single and mixture toxicities of BDE-47, 6-OH-BDE-47 and 6-MeO-BDE-47 on the feeding activity of Daphnia magna: From behavior assessment to neurotoxicity. Chemosphere 2018; 195:542-550. [PMID: 29277034 DOI: 10.1016/j.chemosphere.2017.12.045] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 12/03/2017] [Accepted: 12/08/2017] [Indexed: 06/07/2023]
Abstract
Although 2,2',4,4'-tetrabrominated diphenyl ether (BDE-47), 6-hydroxy-2,2',4,4'-tetrabromodiphenyl ether (6-OH-BDE-47) and 6-methoxy-2,2',4,4'-tetrabromodiphenyl ether (6-MeO-BDE-47) clearly disrupt the endocrine system, current knowledge of their single and/or mixture toxicities on other behaviors of aquatic organisms remains limited. In the present study, Daphnia magna was used to investigate the single and mixture toxicities of BDE-47, 6-OH-BDE-47 and 6-MeO-BDE-47 as measured by inhibition of feeding during exposure and post-exposure periods. Additionally, the biochemical performance, i.e., the activities of super oxidase dismutase (SOD), glutathione peroxidase (GPx) and acetylcholinesterase (AChE) of the test organism was studied to investigate the potential mechanisms of the toxicity of the target compounds. The three target compounds produced an obvious depressive effect on feeding behavior during the exposure period, and the effect increased with increasing concentrations. D. magna was most sensitive to 6-OH-BDE-47. The toxicity of the ternary mixture showed an obvious concentration-dependent effect, whereas the binary mixture toxicity showed the characteristics of hormesis. During the post-exposure period, overcompensation occurred, indicating a short-term effect of the target compounds on D. magna. Additionally, significant changes occurred in neurological responses, indicating that these compounds might have neurobehavioral toxicity in D. magna. The decrease in oxidative stress enzymes (SOD and GPx) indicated that the antioxidant response of D. magna was destroyed.
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Affiliation(s)
- Yanhua Liu
- China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China
| | - Ruixin Guo
- China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China
| | - Shengkai Tang
- Key Laboratory of Fisheries Resources in Inland Water of Jiangsu Province, Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing 210017, China
| | - Fengyi Zhu
- China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China
| | - Shenghu Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China
| | - Zhengyu Yan
- China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China.
| | - Jianqiu Chen
- China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China.
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