| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
An Integrated Biomarker Approach Using Flounder to Improve Chemical Risk Assessments in the Heavily Polluted Seine Estuary
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| Autores: |
Borcier, Elodie
Charrier, Gregory
Couteau, Jérôme
Maillet, Géraldine
Le Grand, Fabienne
Bideau, Antoine
Waeles, Mathieu
Le Floch, Stephane
Amara, Rachid
Pichereau, Vianney
Laroche, Jean
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| Data: |
2020-12
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| Ano: |
2020
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| Palavras-chave: |
Platichthys flesus
Estuaries
Biomarkers
Bioenergetics
Polar lipids
Population genetics
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| Resumo: |
The objective of this study was to develop an integrative approach in ecotoxicology (from biomarkers to population genetics) to assess the ecological status of fish populations. Flounders (Platichthys flesus) collected after the spawning season in the heavily polluted Seine estuary were compared with the moderately polluted Bay of Douarnenez. The muscle energetic reserves were highly depleted in Seine vs. Douarnenez fish. The Seine fish displaying a reduced capacity to manage the oxidative stress and a higher energetic metabolism. An increase in the content of muscle membrane phospholipids (sphingomyelin, phosphatidylserine, free sterols) was detected in the Seine vs. Douarnenez fish. The data integration allowed to hypothesize relationships between membrane phospholipids, xenobiotic metabolism, bioenergetics, and antioxidant defence. The genetic diversity considering neutral markers was maintained in the heavily polluted Seine population compared with the Douarnenez population. Finally, we suggest that the high physiological cost of tolerance to toxicants in the Seine flounder population could compromise its capacity to respond in the future to an additional stressor like warming waters in shallow depth. Thus, this population could be submitted to an ecological risk.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00658/76981/78238.pdf
DOI:10.3390/jox10020004
https://archimer.ifremer.fr/doc/00658/76981/
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| Editor: |
MDPI AG
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| Formato: |
application/pdf
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| Fonte: |
Journal Of Xenobiotics (2039-4705) (MDPI AG), 2020-12 , Vol. 10 , N. 2 , P. 14-35
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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