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Brain as a target organ of climate events: Environmental induced biochemical changes in three marine fish species

2018Journal article Open access
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dc.contributor.authorVieira, R.
dc.contributor.authorMarques, S.M.
dc.contributor.authorNeto, J.M.
dc.contributor.authorBarría, P.
dc.contributor.authorMarques, J.C.
dc.contributor.authorGonçalves, F.J.M.
dc.contributor.authorGonçalves, A.M.M.
dc.date.accessioned2021-09-07T16:00:33Z
dc.date.available2021-09-07T16:00:33Z
dc.date.issued2018
dc.description.abstractThe present study aims to examine physiological and biochemical response of three commercial fish species (Dicentrarchus labrax; Platichthys flesus and Solea solea), over contrasting environmental dynamics: an extremely dry (2012) and flood (2014) years, in a shallow temperate southern European estuary, the Mondego Estuary (Portugal). Physiological and biochemical biomarkers were evaluated by a principal component analysis (PCA), which allowed to conclude that severe climatic events affected the set of fish species analyzed, revealing two distinct annual brain antioxidant responses. The drought episode affected the physiological state of the organisms, as well as increased brain antioxidant potential, strongly associated with fluctuations in environmental drivers (salinity and dissolved oxygen), however, ROS have not been effectively neutralized by antioxidant defence system causing lipid peroxidation. During flood episode was stated a general depletion of the antioxidant potential in the analyzed fish species, affected by interactions with chemical compounds, increased by a combination of high precipitation and associated runoff, probably, increasing nutrient and contaminant load at the Mondego estuary. Nevertheless, lipid peroxidation remained low, related to the action of non-enzymatic antioxidants, since that the studied fish species had optimal physiological status and high nutritive reserves. According to the present work we consider that brain enzymatic depletion may be organ-specific, looking to the greater vulnerability of brain's proteins to degradation compared to lipids. The role of enzymatic mobilization on fish brains is not extensively yet known, but our results suggest that brain seems to be metabolic sensitive to salinity and dissolved oxygen fluctuations. This is the first approach made to evaluate the physiological and biochemical responses of the brain of aquatic organisms’ to extreme climatic events and to establish reference values to determine the effects of extreme climate events to aquatic species.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationR. Vieira, S.M. Marques, J.M. Neto, P. Barría, J.C. Marques, F.J.M. Gonçalves, A.M.M. Gonçalves, Brain as a target organ of climate events: Environmental induced biochemical changes in three marine fish species, Ecological Indicators, Volume 95, Part 1, 2018, Pages 815-824, ISSN 1470-160X, https://doi.org/10.1016/j.ecolind.2018.08.019.pt_PT
dc.identifier.doi10.1016/j.ecolind.2018.08.019pt_PT
dc.identifier.issn1470-160X
dc.identifier.urihttp://hdl.handle.net/10400.8/6223
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationCentre for Environmental and Marine Studies
dc.relationMARE - Marine and Environmental Sciences Centre
dc.relationInfluência da comunidade microbiana de locais contaminados na microbiota da pele e na eficácia do sistema imunitário inato de anfíbios
dc.relationAre biochemical responses to stressors of species similar under a gradient of salinity A new approach to find threats and impacts in the structure and food quality of trophic chain
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S1470160X18306186pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBrainpt_PT
dc.subjectAntioxidant responsespt_PT
dc.subjectTemporal variabilitypt_PT
dc.subjectFloodpt_PT
dc.subjectDroughtpt_PT
dc.subjectMarine fish speciespt_PT
dc.subjectMondego estuarypt_PT
dc.titleBrain as a target organ of climate events: Environmental induced biochemical changes in three marine fish speciespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Environmental and Marine Studies
oaire.awardTitleMARE - Marine and Environmental Sciences Centre
oaire.awardTitleInfluência da comunidade microbiana de locais contaminados na microbiota da pele e na eficácia do sistema imunitário inato de anfíbios
oaire.awardTitleAre biochemical responses to stressors of species similar under a gradient of salinity A new approach to find threats and impacts in the structure and food quality of trophic chain
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAMB%2F50017%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMAR%2F04292%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F112803%2F2015/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F97210%2F2013/PT
oaire.citation.endPage824pt_PT
oaire.citation.startPage815pt_PT
oaire.citation.titleEcological Indicatorspt_PT
oaire.citation.volume95pt_PT
oaire.fundingStream6817 - DCRRNI ID
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oaire.fundingStreamFARH
person.familyNameNeto
person.givenNameJoão
person.identifier.ciencia-id4213-127C-A1FB
person.identifier.orcid0000-0002-9033-3671
person.identifier.ridF-1159-2013
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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