Characterization of dissolved organic matter leached from plastics and its effects on marine microbes

Characterization of dissolved organic matter leached from plastics and its effects on marine microbes

Trabajo final presentado por Rebeca Mallenco Fornies para el Máster en Oceanografía y Gestión del Medio Marino de la Universitat de Barcelona (UB), realizado bajo la dirección de la Dra. Cristina Romera Castillo del Institut de Ciències del Mar (ICM-CSIC) y la Dra Montserrat Vidal de la Universitat de Barcelona (UB).-- 20 pages, 3 figures, 1 table

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Bibliographic Details
Main Author: Mallenco Fornies, Rebeca
Other Authors: Romera-Castillo, Cristina
Format: tesis de maestría biblioteca
Published: Universidad de Barcelona 2019-10
Online Access:http://hdl.handle.net/10261/212214
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spelling dig-icm-es-10261-2122142022-05-26T11:04:05Z Characterization of dissolved organic matter leached from plastics and its effects on marine microbes Mallenco Fornies, Rebeca Romera-Castillo, Cristina Vidal, Montserrat Trabajo final presentado por Rebeca Mallenco Fornies para el Máster en Oceanografía y Gestión del Medio Marino de la Universitat de Barcelona (UB), realizado bajo la dirección de la Dra. Cristina Romera Castillo del Institut de Ciències del Mar (ICM-CSIC) y la Dra Montserrat Vidal de la Universitat de Barcelona (UB).-- 20 pages, 3 figures, 1 table Plastic debris is a real problem in our society whose consequences at lower trophic levels remain unknown. Every year, 23.600 metric tons of dissolved organic carbon are leached globally from the plastic reaching the ocean. The chemical characteristics of those released compounds and its effects on marine bacteria are poorly understood. This research studies the dissolved organic matter (DOM) leached from two different commonly used types of plastics, low density polyethylene (LDPE) and polystyrene (PS), into seawater. The concentration of dissolved organic carbon (DOC) was analysed and the DOM was characterized through fluorescence techniques. In addition, the effect of the DOM released by plastic on bacterial activity was also studied through incubation experiments. Our results show that LDPE and PS release DOC into seawater, with the highest leaching for LDPE. For both plastic types, irradiation enhanced the DOC leaching. In general, DOM leached from plastic do not show fluorescent signals. However, a decrease of humic- and protein-like fluorescence was observed after irradiation probably due to photo-degradation of the DOM already present in the artificial seawater or the re-sorption of this one into the plastic. Heterotrophic bacteria reached a higher density on LDPE leachates treatments, especially in those previously irradiated. Bacteria growing on LDPE leachates produced higher amount of protein-like compounds while those growing on PS leachates produced higher humic-like substances 2020-05-26T11:36:37Z 2020-05-26T11:36:37Z 2019-10 2020-05-26T11:36:38Z tesis de maestría http://purl.org/coar/resource_type/c_bdcc http://hdl.handle.net/10261/212214 No none Universidad de Barcelona CSIC - Instituto de Ciencias del Mar (ICM)
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
description Trabajo final presentado por Rebeca Mallenco Fornies para el Máster en Oceanografía y Gestión del Medio Marino de la Universitat de Barcelona (UB), realizado bajo la dirección de la Dra. Cristina Romera Castillo del Institut de Ciències del Mar (ICM-CSIC) y la Dra Montserrat Vidal de la Universitat de Barcelona (UB).-- 20 pages, 3 figures, 1 table
author2 Romera-Castillo, Cristina
author_facet Romera-Castillo, Cristina
Mallenco Fornies, Rebeca
format tesis de maestría
author Mallenco Fornies, Rebeca
spellingShingle Mallenco Fornies, Rebeca
Characterization of dissolved organic matter leached from plastics and its effects on marine microbes
author_sort Mallenco Fornies, Rebeca
title Characterization of dissolved organic matter leached from plastics and its effects on marine microbes
title_short Characterization of dissolved organic matter leached from plastics and its effects on marine microbes
title_full Characterization of dissolved organic matter leached from plastics and its effects on marine microbes
title_fullStr Characterization of dissolved organic matter leached from plastics and its effects on marine microbes
title_full_unstemmed Characterization of dissolved organic matter leached from plastics and its effects on marine microbes
title_sort characterization of dissolved organic matter leached from plastics and its effects on marine microbes
publisher Universidad de Barcelona
publishDate 2019-10
url http://hdl.handle.net/10261/212214
work_keys_str_mv AT mallencoforniesrebeca characterizationofdissolvedorganicmatterleachedfromplasticsanditseffectsonmarinemicrobes
_version_ 1777667206235029504

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