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Data Publisher for Earth & Environmental Science

Galgani, Luisa; Engel, Anja; Rossi, Claudio; Donati, Alessandro; Loiselle, Steven Arthur (2019): Microbial release of marine Chromophoric Dissolved Organic Matter in microcosm experiments in the presence of polystyrene microplastics. PANGAEA, https://doi.org/10.1594/PANGAEA.897372, Supplement to: Galgani, L et al. (2018): Polystyrene microplastics increase microbial release of marine Chromophoric Dissolved Organic Matter in microcosm experiments. Scientific Reports, 8(1), https://doi.org/10.1038/s41598-018-32805-4

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Abstract:
Chromophoric dissolved organic matter (CDOM) is the photo-reactive fraction of the marine dissolved organic matter (DOM) pool. Changes in CDOM quality and quantity have impacts on marine microbial dynamics and the underwater light environment. One major source of CDOM is produced by marine bacteria through their alteration of pre-existing DOM substrates. In a series of microcosm experiments in controlled marine conditions, we explored the impact of polystyrene microplastics on the quality and quantity of microbial CDOM, observing an increased production of CDOM with changes in its molecular weight, which resulted from either an increased microbial CDOM production or an enhanced transformation of DOM from lower to higher molecular weight CDOM.
This open dataset reports CDOM, bacteria, DOC and oxygen data collected in the series of microcosm experiments recently published. They refer to Experimental Set-up 1 and Experimental Set-up 2 (ES1, ES2). The CDOM data from the blank control experiment are also reported.
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3 datasets

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