Microplastics and leaf litter decomposition dynamics: New insights from a lotic ecosystem (Northeastern Italy)

Bertoli, Marco; Renzi, Monia; Pastorino, Paolo; Lesa, Davide; Mele, Antonella; Anselmi, Serena; Barceló, Damià; Prearo, Marino; Pizzul, Elisabetta

doi:10.1016/j.ecolind.2023.109995

Cited by 11 publications

(3 citation statements)

References 104 publications

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“…Wet filters were collected under the glove box environment in a glass Petri dish and dried in an oven at 39 ± 1 • C. Positive controls (animals fed with 1-3 µm fluorescent polystyrene spherules) were carried out on single chironomid larva (n = 9 per treatment) and copepod (n = 20 per treatment). Negative controls (composed by a set of empty glass, unused Anodisc ® filters) were performed in 5 replicates per batch of analysis according to the literature [22]. For details concerning the positive control treatments, see Quality Assurance and Quality Control (QA/QC) paragraph below.…”

Section: Sample Treatmentmentioning

confidence: 99%

“…For details concerning the positive control treatments, see Quality Assurance and Quality Control (QA/QC) paragraph below. Finally, a standardized method for extraction and recovery of particles was applied on all tested samples such as positive/negative controls on environmental samples (animals collected from the two natural sites) [22]. All the tested samples were analyzed using three distinct, integrating techniques, as reported below.…”

Section: Sample Treatmentmentioning

confidence: 99%

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Looking for Nano- and Microplastics in Meiofauna Using Advanced Methodologies

Todaro

Anselmi²,

Bentivoglio³

et al. 2023

Environments

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Meiofauna (body size within 30–1000 µm) are the community of microscopic invertebrates that live at the bottom of marine and freshwater ecosystems and play a key role in the food webs of these environments. Several studies have addressed the adverse effects of anthropic stressors on meiofauna; however, data on the presence and impact of plastic debris in wild meiofaunal organisms are scant. Since the amount of microplastic waste in sediments may surge rapidly, ascertaining the ingestion of these xenobiotics by the abundant micrometazoan community is necessary to understand their potential accumulation in aquatic food webs and their hazard to the health of the ecosystem. The absence of documentation in this regard may be due to the difficulty in detecting the small size of the plastic fragments meiofauna may potentially ingest. To overcome this difficulty, we developed an integrated approach based on different microscopic/spectroscopic techniques suitable for detecting plastic particles of sizes down to 200 nm.

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Section: Sample Treatmentmentioning

confidence: 99%

Section: Sample Treatmentmentioning

confidence: 99%

Looking for Nano- and Microplastics in Meiofauna Using Advanced Methodologies

Todaro

Anselmi²,

Bentivoglio³

et al. 2023

Environments

Self Cite

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“…Due to increasing plastic pollution in all ecosystems, including oceans (Jambeck et al, 2015 ) and freshwaters (Hurley et al, 2018 ), microplastic pollution has become a global environmental concern. They are highly persistent and can remain in the water column for a long time, accumulate in organisms or sediments, and reduce the decomposition rate of OM (Bertoli et al, 2023 ; Welsh et al, 2022 ). Despite their potentially harmful effects on ecosystems, recent studies have shown that carbon from plastic can be nutritionally upgraded in the lake food web via microbial decomposition, suggesting that even highly persistent microplastic carbon can subsidize aquatic food web and be brought to fast carbon cycling (Taipale et al, 2019 , 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Plastic and terrestrial organic matter degradation by the humic lake microbiome continues throughout the seasons

Vesamäki,

Laine,

Nissinen

et al. 2024

Environ Microbiol Rep

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Boreal freshwaters go through four seasons, however, studies about the decomposition of terrestrial and plastic compounds often focus only on summer. We compared microbial decomposition of 13C‐polyethylene, 13C‐polystyrene, and 13C‐plant litter (Typha latifolia) by determining the biochemical fate of the substrate carbon and identified the microbial decomposer taxa in humic lake waters in four seasons. For the first time, the annual decomposition rate including separated seasonal variation was calculated for microplastics and plant litter in the freshwater system. Polyethylene decomposition was not detected, whereas polystyrene and plant litter were degraded in all seasons. In winter, decomposition rates of polystyrene and plant litter were fivefold and fourfold slower than in summer, respectively. Carbon from each substrate was mainly respired in all seasons. Plant litter was utilized efficiently by various microbial groups, whereas polystyrene decomposition was limited to Alpha‐ and Gammaproteobacteria. The decomposition was not restricted only to the growth season, highlighting that the decomposition of both labile organic matter and extremely recalcitrant microplastics continues throughout the seasons.

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Soil moisture determines the consistency of organic matter decomposition in field and lab test patterns

Chen,

Li,

et al. 2024

CATENA

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Microplastics and leaf litter decomposition dynamics: New insights from a lotic ecosystem (Northeastern Italy)

Cited by 11 publications

References 104 publications

Looking for Nano- and Microplastics in Meiofauna Using Advanced Methodologies

Looking for Nano- and Microplastics in Meiofauna Using Advanced Methodologies

Plastic and terrestrial organic matter degradation by the humic lake microbiome continues throughout the seasons

Soil moisture determines the consistency of organic matter decomposition in field and lab test patterns

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