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Assessing the ecological consequences of biodegradable plastics : acute, chronic and multigenerational impacts of poly-3-hydroxybutyrate microplastics on freshwater invertebrate Daphnia magna
ID
Procházková, Petra
(
Author
),
ID
Kalčíková, Gabriela
(
Author
),
ID
Maršálková, Eliška
(
Author
),
ID
Brtnický, Martin
(
Author
),
ID
Zlámalová Gargošová, Helena
(
Author
),
ID
Kučerík, Jiří
(
Author
)
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MD5: 587F6C72D4D3B99A2C62176C176E3A53
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https://www.sciencedirect.com/science/article/pii/S240584402412333X
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Abstract
Microplastics, pervasive contaminants in freshwater ecosystems, have raised ecological concerns. Efforts are underway to substitute conventional plastics with biodegradable alternatives that should be more easily decomposed in the environment. However, the biodegradation of these alternatives depends on specific conditions such as temperature, humidity, pH, and microorganisms, which are not always met. Consequently, these biodegradable alternatives can also fragment and generate microplastics, which can be ingested and affect biota. In this study, we investigated the acute, chronic, and multigenerational effects of two fractions (particles <63 μm and particles <125 μm) of biodegradable poly-3-hydroxybutyrate (P3HB) at varying concentrations on the inhibition, mortality, reproduction activity, and growth of the freshwater invertebrate Daphnia magna. No acute effects were observed for either size fraction. However, during chronic and multigenerational experiments, an increase in the concentration of P3HB microplastics corresponded with increased mortality, reduced reproductive activity, and slower growth among the mother organisms. Given the important role of D. magna in the food chain, these findings suggest that biodegradable microplastics may indeed negatively affect freshwater ecosystems.
Language:
English
Keywords:
P3HB
,
biodegradable microplastics
,
biofilm
,
D. magna
,
reproduction
,
growth
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FKKT - Faculty of Chemistry and Chemical Technology
Publication status:
Published
Publication version:
Version of Record
Year:
2024
Number of pages:
Str. 1-9
Numbering:
Vol. 10, iss. 16, art. e36302
PID:
20.500.12556/RUL-160179
UDC:
504.5:678
ISSN on article:
2405-8440
DOI:
10.1016/j.heliyon.2024.e36302
COBISS.SI-ID:
204976899
Publication date in RUL:
22.08.2024
Views:
93
Downloads:
43
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Record is a part of a journal
Title:
Heliyon
Publisher:
Elsevier
ISSN:
2405-8440
COBISS.SI-ID:
21607432
Licences
License:
CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:
http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:
The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Secondary language
Language:
Slovenian
Keywords:
P3HB
,
biorazgradljiva mikroplastika
,
biofilm
,
D. magna
,
razmnoževanje
,
rast
Projects
Funder:
Other - Other funder or multiple funders
Project number:
FCH–S-23-8297
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
P2-0191
Name:
Kemijsko inženirstvo
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
J1-50014
Name:
Učinki biorazgradljive mikroplastike na vodne in kopenske organizme
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