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Cited by 4Environmental Toxicology and EcotoxicologyAquatic Ecosystems and Phytoplankton DynamicsAquatic Invertebrate Ecology and Behavior

The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.

Polyphenols extracts from Didymosphenia geminata (Lyngbye) Schmidt altered the motility and viability of Daphnia magna

Open access
Olivares-Ferretti, Pamela, Chavez, Viviana, Hernandez, Klaudia, Peredo-Parada, Matías, Parodi, Jorge·2022·Aquatic Ecology

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Abstract

Abstract The invasive diatom Didymosphenia geminata (Lyngbye) Schmidt, D. geminata has invaded the austral zone of Chile, causing significant ecological, scientific and societal concerns. We aimed to evaluate the viability and motility Daphnia magna (D. magna), as a biosensor for effects of D. geminata. Toxicity assays were performed in dilutions of river water alone (V/V dilution) and in river water contaminated with D. geminata (V/V dilution) or polyphenols extracted from D. geminata under controlled conditions and different time (acute 30 min and 7 hrs). Our results indicated that D. magna was sensitive to increasing concentrations of D. geminata extracts. We observed a 50% (IC50) viability reduction after 24 h of exposure to a 0.023 V/V dilution and the same value when using polyphenols from D. geminata; additionally, this treatment further reduced the motility capacity by 50% after 72 h. The D. magna organisms were acutely responsive, showing a 50% reduction in frequency at 15 min. We conclude that D. magna is sensitive to polyphenols produced by D. geminata in rivers, suggesting potential chronic toxic consequences on several aquatic species following exposure to these diatom substances.

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Research works printed but not linked: 1

  1. Gretz MR, Riccio ML, Kiemle SN, Domozych DS, Spaulding SA (2007) Didymosphenia geminata as a nuisance diatom: runaway stalk production results in mats with significant environmental impact. J Phycol 43:16–16

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Metadata

Authors
Olivares-Ferretti, P., Chavez, V., Hernandez, K., Peredo-Parada, M., & Parodi, J.
Affiliations
Universidad de La Frontera (CL)
Venue
Aquatic Ecology
Published
2021-08-07
Volume
56
Issue
1
Pages
35-45
ISSN
  • 1386-2588 (ISSN-L)
  • 1573-5125
OpenAlex
W3188579123
Cited by
4
References
48
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2022: 1
FWCI
0.19
Type
journal article
Language
en
Open access
Locations
  • Aquatic Ecology (publishedVersion)
  • Research Square (acceptedVersion, cc-by)
  • Omeka S (Universidad de La Frontera) (submittedVersion, cc-by-nc-nd)
Funders
Comisión Nacional de Investigación Científica y Tecnológica
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Environmental Toxicology and Ecotoxicology
  • Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
  • Physical Sciences › Environmental Science › Ecology › Aquatic Invertebrate Ecology and Behavior
Keywords
Didymosphenia geminata, Daphnia magna, polyphenols, bioindicators, aquatic toxicity, motility, cell viability, invasive diatoms, river pollution, acute toxicity, chronic toxicity

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CoChat. (2026). Citation check: Polyphenols extracts from Didymosphenia geminata (Lyngbye) Schmidt altered the motility and viability of Daphnia magna. https://app.cochat.ai/papers/10.1007/s10452-021-09890-1
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Olivares-Ferretti, P., Chavez, V., Hernandez, K., Peredo-Parada, M., & Parodi, J. (2022). Polyphenols extracts from Didymosphenia geminata (Lyngbye) Schmidt altered the motility and viability of Daphnia magna. Aquatic Ecology. https://doi.org/10.1007/s10452-021-09890-1

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