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    <title>Abundance, distribution, composition, and weathering resistance of microplastics in different marine systems</title>
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  <abstract type="Summary">This study investigated the abundance and weathering processes of microplastics in different aquatic systems. Particle flux analysis showed that polyethylene (PE) and polyvinyl chloride (PVC) were the most abundant in the deep subtropical Northeast Atlantic during the period 2003-2015. In addition, an atmospheric transport pathway for PE and a seasonal dependence of PVC fluxes were found. The weathering experiment showed that polypropylene was the most susceptible polymer type, with a correspondingly low abundance in the deep Atlantic particle flux.&lt;eng&gt;</abstract>
  <abstract type="Summary">In dieser Arbeit wurden die Abundanz und die Verwitterungsprozesse von Mikroplastik in verschiedenen aquatischen Systemen untersucht. Die Analyse der Partikelflüsse zeigte, dass Polyethylen (PE) und Polyvinylchlorid (PVC) im Zeitraum 2003-2015 im tiefen subtropischen Nordostatlantik am häufigsten vorkamen. Außerdem wurde ein atmosphärischer Transportweg für PE und eine saisonale Abhängigkeit der PVC-Flüsse festgestellt. Das Verwitterungsexperiment zeigte, dass Polypropylen der anfälligste Polymertyp war, dessen Häufigkeit im Partikelfluss des tiefen Atlantiks entsprechend gering war.&lt;ger&gt;</abstract>
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  <note type="statement of responsibility">vorgelegt von Janika Reineccius</note>
  <note>Enthält Zeitschriftenartikel</note>
  <note>GutachterInnen: Joanna J. Waniek (Leibniz-Institut für Ostseeforschung Warnemünde) ; Uta Passow (Memorial University of Newfoundland, Canada)</note>
  <note type="thesis">Dissertation Universität Rostock 2023 Kumulative Dissertation</note>
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      <title>Abundance, distribution, composition, and weathering resistance of microplastics in different marine systems</title>
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      <publisher>Rostock : Universität Rostock, 2023</publisher>
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      <namePart>Reineccius, Janika Melina, 1993 - </namePart>
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