Cited by 448Microplastics and Plastic PollutionEnvironmental Toxicology and EcotoxicologyPharmaceutical and Antibiotic Environmental Impacts

The DOI matches its Crossref record; 68 of the 69 references it cites were found in a registry or an index.

Feeding type and development drive the ingestion of microplastics by freshwater invertebrates

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Abstract

Abstract Microscopic plastic items (microplastics) are ubiquitously present in aquatic ecosystems. With decreasing size their availability and potential to accumulate throughout food webs increase. However, little is known on the uptake of microplastics by freshwater invertebrates. To address this, we exposed species with different feeding strategies to 1, 10 and 90 µm fluorescent polystyrene spheres (3–3 000 particles mL−1). Additionally, we investigated how developmental stages and a co-exposure to natural particles (e.g., food) modulate microplastic ingestion. All species ingested microplastics in a concentration-dependent manner with Daphnia magna consuming up to 6 180 particles h−1, followed by Chironomus riparius (226 particles h−1), Physella acuta (118 particles h−1), Gammarus pulex (10 particles h−1) and Lumbriculus variegatus (8 particles h−1). D. magna did not ingest 90 µm microplastics whereas the other species preferred larger microplastics over 1 µm in size. In C. riparius and D. magna, size preference depended on the life stage with larger specimens ingesting more and larger microplastics. The presence of natural particles generally reduced the microplastics uptake. Our results demonstrate that freshwater invertebrates have the capacity to ingest microplastics. However, the quantity of uptake depends on their feeding type and morphology as well as on the availability of microplastics.

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Crossref · 10.1038/s41598-017-17191-7

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Figures

Figure 1 Feeding on polystyrene particles. (a–e) Surface plots of the amount of ingested particles (1, 10 and 90 µm) per hour by Daphnia magna (a), Chironomus riparius (b), Gammarus pulex (c), Physella acuta (d) and Lumbriculus variegatus (e) at different particle concentrations (3–3 000 P mL−1). n = 6. (f) Floating bars (min to max, line at mean) illustrating the number of ingested particles (1, 10 and 90 µm) per hour by D. magna, C. riparius, G. pulex and P. acuta exposed to 300 P mL−1. The lower case letters refer to statistical significant differences between the organism and D. magna (letter m) and C. riparius (letter r) at same particle size. *p < 0.05, ***p < 0.001. n = 6.
Figure 1 Feeding on polystyrene particles. (a–e) Surface plots of the amount of ingested particles (1, 10 and 90 µm) per hour by Daphnia magna (a), Chironomus riparius (b), Gammarus pulex (c), Physella acuta (d) and Lumbriculus variegatus (e) at different particle concentrations (3–3 000 P mL−1). n = 6. (f) Floating bars (min to max, line at mean) illustrating the number of ingested particles (1, 10 and 90 µm) per hour by D. magna, C. riparius, G. pulex and P. acuta exposed to 300 P mL−1. The lower case letters refer to statistical significant differences between the organism and D. magna (letter m) and C. riparius (letter r) at same particle size. *p < 0.05, ***p < 0.001. n = 6.CC BY · PubMed Central
Figure 2 Influence of natural particles on the ingestion of polystyrene particles. Bar graphs show change in ingestion [%] in relation to the total amount of ingested particles per size (1, 10 and 90 µm) in the absence of additional particles. Negative values represent a reduced ingestion and positive values an enhanced ingestion of polystyrene beads in the presence of natural particles. N.I. = no ingestion.
Figure 2 Influence of natural particles on the ingestion of polystyrene particles. Bar graphs show change in ingestion [%] in relation to the total amount of ingested particles per size (1, 10 and 90 µm) in the absence of additional particles. Negative values represent a reduced ingestion and positive values an enhanced ingestion of polystyrene beads in the presence of natural particles. N.I. = no ingestion.CC BY · PubMed Central
Figure 3 Development-dependent ingestion of polystyrene beads (1, 10 and 90 µm) by Daphnia magna (a) and the aquatic larvae of Chironomus riparius (b).
Figure 3 Development-dependent ingestion of polystyrene beads (1, 10 and 90 µm) by Daphnia magna (a) and the aquatic larvae of Chironomus riparius (b).CC BY · PubMed Central

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Metadata

Authors
Scherer, C., Brennholt, N., Reifferscheid, G., & Wagner, M.
Affiliations
  • Goethe University Frankfurt (DE)
  • Federal Institute of Hydrology (DE)
Corresponding author
Scherer, Christian
Venue
Scientific Reports
Published
2017-12-05
Volume
7
Issue
1
Pages
17006-17006
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2770802549
Cited by
448
References
69
Citations by year
2026: 45 · 2025: 48 · 2024: 66 · 2023: 58 · 2022: 64 · 2021: 63 · 2020: 52 · 2019: 37 · 2018: 13 · 2017: 1
FWCI
12.68
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • BIBSYS Brage (BIBSYS (Norway)) (acceptedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • NORA - Norwegian Open Research Archives (submittedVersion, cc-by)
  • Publication Server of Goethe University Frankfurt am Main (Goethe University Frankfurt) (submittedVersion, cc-by)
Funders
Bundesministerium für Bildung und Forschung
Topics
  • Physical Sciences › Environmental Science › Pollution › Microplastics and Plastic Pollution
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Environmental Toxicology and Ecotoxicology
  • Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
Keywords
microplastics, microplastic ingestion, freshwater invertebrates, feeding type, developmental stages, Daphnia magna, Chironomus riparius, Physella acuta, Gammarus pulex, Lumbriculus variegatus, polystyrene microspheres
MeSH terms
Animals, Chironomidae, Daphnia, Eating, Fresh Water, Invertebrates, Plastics, Water Pollutants, Chemical, Ecosystem, Food Chain, Amphipoda

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