Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/123318
Campo DC Valoridioma
dc.contributor.authorLe Du-Carrée, Jessyen_US
dc.contributor.authorAlmeda García, Rodrigoen_US
dc.date.accessioned2023-06-08T10:37:17Z-
dc.date.available2023-06-08T10:37:17Z-
dc.date.issued2023en_US
dc.identifier.isbn978-84-9042-480-3en_US
dc.identifier.urihttp://hdl.handle.net/10553/123318-
dc.description.abstractTire wear particles (TWP) are the major contributor to microplastic pollution in the marine environment. There is increasing evidence that leached plastic additives are the main responsible for microplastic toxicity to plankton. In this study, we tested the effect of leachates from micronized car tire particles on the growth of the marine heterotrophic dinoflagellate Oxyrrhis marina. Heterotrophic dinoflagellates play key roles in marine food webs as major grazers of phytoplankton and as a link for trophic upgrading of food quality. However, little is known about the impact of TWP leachates on this planktonic group. Our experimental design was constituted of closed glass bottles of 33 mL containing 500 cells mL-1 with triplicate of six leachate doses from 0% to 100%. Leachate extract from 1 g of TWP L-1 was prepared following four steps: micronization, size fractionation, particle size characterization, lixiviation, and leachate filtration. After a period of incubation of 72 hours, cell concentration and cell size were evaluated. Our results have shown that O. marina was sensitive to leachates creating a dose-dependent (EC50=32.3±5.7%) increase in population mortality observed from the lowest tested dose (i.e. 6.25%). Leachate toxicity could be due to the cocktail effect of chemical compounds detected in the TWP leachates, which included metals (e.g. zinc and strontium), flame retardant (e.g. tris (2-chloroisopropyl)phosphate)) and polycyclic aromatic hydrocarbon (e.g. naphthalene). In conclusion, our results demonstrate leachate solution of micronized car tire particles is highly toxic for the marine heterotrophic protist O. marina. . This implies that further research has to be conducted to characterize the main plastic additives responsible for this observed toxicity. In the end, these results could be used to improve ocean protection practices and regulations regarding the use of environmentally safer plastic additives.en_US
dc.languageengen_US
dc.publisherServicio de Publicaciones y Difusión Científica de la Universidad de Las Palmas de Gran Canaria (ULPGC)en_US
dc.sourceLibro de Abstracs del II International Workshop on Marine Litter (BAMAR 2022) / María Esther Torres Padrón (ed.), p. 69en_US
dc.subjectMateriasen_US
dc.subject.otherMicroplasticsen_US
dc.subject.otherLeachateen_US
dc.subject.otherTire wear particlesen_US
dc.subject.otherHeterotrophic dinoflagellateen_US
dc.subject.otherPlastic additivesen_US
dc.titleImpact of leachate from car tire microplastics on the marine Heterotrophic dinoflagellate, Oxyrrhis marinaen_US
dc.typeinfo:eu-repo/semantics/lectureen_US
dc.typeLectureen_US
dc.relation.conferenceII International Workshop on Marine Litter (BAMAR 2022)en_US
dc.description.firstpage69en_US
dc.investigacionCienciasen_US
dc.type2Ponenciaen_US
dc.description.numberofpages1en_US
dc.utils.revisionen_US
dc.identifier.ulpgcen_US
dc.contributor.buulpgcBU-BASen_US
dc.contributor.buulpgcBU-BASen_US
dc.contributor.buulpgcBU-BASen_US
dc.contributor.buulpgcBU-BASen_US
item.fulltextCon texto completo-
item.grantfulltextopen-
crisitem.event.eventsstartdate06-07-2022-
crisitem.event.eventsenddate08-07-2022-
crisitem.author.deptGIR ECOAQUA: Ecofisiología de Organismos Marinos-
crisitem.author.deptIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.orcid0000-0002-0090-112X-
crisitem.author.parentorgIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.fullNameAlmeda García, Rodrigo-
Colección:Ponencias
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