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The fate of plastic litter within estuarine compartments: an overview of current knowledge for the transboundary issue to guide future assessments

2021Journal article Open access
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dc.contributor.authorPinheiro, L. M.
dc.contributor.authorAgostini, V. O.
dc.contributor.authorLima, A. R. A.
dc.contributor.authorWard, R. D.
dc.contributor.authorPinho, G. L. L.
dc.date.accessioned2021-03-31T22:30:08Z
dc.date.available2021-03-31T22:30:08Z
dc.date.issued2021
dc.description.abstractPlastics can enter biogeochemical cycles and thus be found in most ecosystems. Most studies emphasize plastic pollution in oceanic ecosystems even though rivers and estuaries are acknowledged as the main sources of plastics to the oceans. This review detected few studies approaching the transboundary issue, as well as patterns of estuarine gradients in predicting plastic distribution and accumulation in water, sediments, and organisms. Quantities of plastics in estuaries reach up to 45,500 items m-3 in water, 567,000 items m-3 in sediment, and 131 items per individual in the biota. The role of rivers and estuaries in the transport of plastics to the ocean is far from fully understood due to small sample sizes, short-term approaches, sampling techniques that underestimate small plastics, and the use of site-specific sampling rather than covering environmental gradients. Microfibres are the most commonly found plastic type in all environmental matrices but efforts to re-calculate pathways using novel sampling techniques and estimates are incipient. Microplastic availability to estuarine organisms and rising/sinking is determined by polymer characteristics and spatio-temporal fluctuations in physicochemical, biological, and mineralogical factors. Key processes governing plastic contamination along estuarine trophic webs remain unclear, as most studies used "species" as an ecological unit rather than trophic/functional guilds and ontogenetic shifts in feeding behaviour to understand communities and intraspecific relationships, respectively. Efforts to understand contamination at the tissue level and the contribution of biofouling organisms as vectors of contaminants onto plastic surfaces are increasing. In conclusion, rivers and estuaries still require attention with regards to accurate sampling and conclusions. Multivariate analysis and robust models are necessary to predict the fate of micro- and macroplastics in estuarine environments; and the inclusion of the socio-economic aspects in modelling techniques seems to be relevant regarding management approaches.pt_PT
dc.description.sponsorshipFEDER; Fundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationEnvironmental Pollution, 279 doi: 10.1016/j.envpol.2021.116908pt_PT
dc.identifier.doi10.1016/j.envpol.2021.116908pt_PT
dc.identifier.issn02697491
dc.identifier.urihttp://hdl.handle.net/10400.12/8061
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationLISBOA-01-0145-FEDER-032209pt_PT
dc.relationImpact of climate chnage on the ecology and dynamics of small pelagic fish
dc.relationMarine and Environmental Sciences Centre
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectTransboundarypt_PT
dc.subjectBiofoulingpt_PT
dc.subjectChemical compoundspt_PT
dc.subjectMacroplasticpt_PT
dc.subjectMicroplasticpt_PT
dc.subjectToxicitypt_PT
dc.titleThe fate of plastic litter within estuarine compartments: an overview of current knowledge for the transboundary issue to guide future assessmentspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleImpact of climate chnage on the ecology and dynamics of small pelagic fish
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FBIA-BMA%2F32209%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04292%2F2020/PT
oaire.citation.conferencePlaceUnited Kingdompt_PT
oaire.citation.endPage14pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleEnvironmental Pollutionpt_PT
oaire.citation.volume279pt_PT
oaire.fundingStream9471 - RIDTI
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication88b035dd-27dc-490a-913f-6859b71b8164
relation.isProjectOfPublication44ac91a1-9377-452e-94d8-d2e5c7cc0cb3
relation.isProjectOfPublication.latestForDiscovery88b035dd-27dc-490a-913f-6859b71b8164

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