Cózar, A. (Andrés)

González-Duarte, M.M. (Manuel María)

González-Fernández, D. (Daniel)

Manzano-Medina, S. (Sandra)

English

Repositorio Institucional Digital del IEO

Presenter: Daniel González-Fernández (University of Cádiz)Description:  Rivers and coastal runoff are key pathways of plastics transport from land-basedsources to the ocean. Despite increasing efforts to characterize plastic  uxesfrom rivers to the ocean, existing data cannot fully explain the dynamics ofplastics in estuarine systems, and thus large uncertainties remain whenattempting to provide large scale assessments through modelled estimates.Estuaries are indeed complex environments in which  uvial processes interactwith the tidal regime, affecting residence time, net transport, and plasticdistribution in the water column. Here, we studied concentrations ofmicroplastics (>250 µm) in surface and water column samples at the estuary ofthe Guadalquivir River (SW Spain). Bimonthly monitoring during spring and neaptides showed differences in the concentration and characteristics ofmicroplastics. We observed that, on average, microplastic concentrations couldbe an order of magnitude higher in the surface layer than in the water column.These results provide new insights to address uncertainties in the extrapolationof litter  uxes using modelled estimates. The use of manta trawl samples mayoverestimate the quanti cation of microplastic loading to the ocean. At the sametime, a mayor portion of the microplastic input from rivers to the marineenvironment may be transported as suspended load.More Information: https://marinelitterlab.eu/Full list of AuthorsSandra Manzano-Medina (University of Cádiz) Manuel González-Duarte (IEO-CSIC) Andrés Cózar (University of Cádiz)OSM WEB SITE EVENT HOME PAGEPROGRAM SCHEDULENavigate the ScheduleSearch AbstractsSchedule at a Glance REGISTRATION LOGINMicroplastics in estuarine waters: surface layer vs. water columnCategoryScienti c Session > OS - Ocean Sustainability and the UN Decade > OS10 Marine Litter and MicroplasticMonitoring and UnderstandingPresentation Preference: OralStudent or Profesional? I am a ProfessionalCopyright Ocean Sciences Meeting 2022. | Need assistance? Contact meetings@aslo.org for help.

Microplastics in estuarine waters: surface layer vs. water column

González-Fernández, Daniel

Manzano-Medina, Sandra

González-Duarte, Manuel María

Cózar, Andrés

Digital.CSIC

http://www.repositorio.ieo.es/e-ieo/bitstream/10508/15736/1/Congreso_2022_OSM.pdf

Microplastics in estuarine waters: surface layer vs. water column

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