Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation

Rani-Borges, Bárbara; Queiroz, Lucas Gonçalves; Prado, Caio César Achiles do; Melo, Eduardo  Carmine de; Moraes, Beatriz Rocha de; Ando, Rômulo Augusto; Paiva, Teresa Cristina Brazil de; Pompêo, Marcelo

doi:10.1016/j.aquatox.2023.106516

Cited by 10 publications

(8 citation statements)

References 69 publications

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“…If we consider that environmental weathering, indicated as the main reason for the degradation of microplastics, can take years for the formation of these particles, the results observed herein represent rapid fragmentation. This difference in the time scale demonstrates the environmental relevance of macroinvertebrate fragmentation in aquatic environments. ,,, …”

Section: Resultsmentioning

confidence: 99%

“…This difference in the time scale demonstrates the environmental relevance of macroinvertebrate fragmentation in aquatic environments. 28,39,40,79 Considering the classification of functional trophic groups, C. sancticaroli can be classified as a collector−gatherer organism. 55,56 Particularly, collectors−gatherers are more susceptible to the ingestion of microplastics since particles mixed in the substrate are ingested at random without any type of selection by size or shape, as in filtering groups.…”

Section: Biofragmentation Of Ps Microspheresmentioning

confidence: 99%

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Biofragmentation of Polystyrene Microplastics: A Silent Process Performed by Chironomus sancticaroli Larvae

Queiroz,

Prado,

Melo

et al. 2024

Environ. Sci. Technol.

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Polystyrene (PS) is one of the main synthetic polymers produced around the world, and it is present in the composition of a wide variety of single-use objects. When released into the environment, these materials are degraded by environmental factors, resulting in microplastics. We investigated the ability of Chironomus sancticaroli (Diptera, Chironomidae) to promote the fragmentation of PS microspheres (24.5 ± 2.9 μm) and the toxic effects associated with exposure to this polymer. C. sancticaroli larvae were exposed to 3 different concentrations of PS (67.5, 135, and 270 particles g −1 of dry sediment) for 144 h. Significant lethality was observed only at the highest concentration. A significant reduction in PS particle size as well as evidence of deterioration on the surface of the spheres, such as grooves and cracks, was observed. In addition, changes in oxidative stress biomarkers (SOD, CAT, MDA, and GST) were also observed. This is the first study to report the ability of Chironomus sp. to promote the biofragmentation of microplastics. The information obtained demonstrates that the macroinvertebrate community can play a key role in the degradation of plastic particles present in the sediment of freshwater environments and can also be threatened by such particle pollution.

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Section: Resultsmentioning

confidence: 99%

Section: Biofragmentation Of Ps Microspheresmentioning

confidence: 99%

Biofragmentation of Polystyrene Microplastics: A Silent Process Performed by Chironomus sancticaroli Larvae

Queiroz,

Prado,

Melo

et al. 2024

Environ. Sci. Technol.

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“…It is important to highlight that bivalves contaminated with microplastics apparently removed from the water column may also affect the dynamics of microplastic availability from planktonic to benthic compartments through particle elimination from feces or pseudofeces [50] and predation of contaminated bivalves [50]. Moreover, as previously described for other aquatic organisms, ingested microplastics may suffer biofragmentation turning into smaller particles then eliminated in feces [51,52], which can make these particles available to smaller detritivorous in aquatic environments. Therefore, our findings evidence the microplastic contamination in Rodrigo de Freitas Lagoon and highlight a concern regarding seafood contamination in this lagoon.…”

Section: Discussionmentioning

confidence: 94%

First Record of Microplastic Contamination in the Non-Native Dark False Mussel Mytilopsis leucophaeata (Bivalvia: Dreissenidae) in a Coastal Urban Lagoon

Neves,

Guimarães,

Santos

2023

IJERPH

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Microplastic contamination is a global concern due to its conspicuous presence in aquatic ecosystems and its toxic nature to environmental and human health. False mussels are among the most notable fresh- and brackish water invaders. The invasive Mytilopsis leucophaeata in Rodrigo de Freitas Lagoon-RFL (Rio de Janeiro, Brazil) is the most abundant macrofaunal invertebrate, widely established and distributed throughout the lagoon. This study aimed to assess microplastic contamination in this invasive filter feeder and evaluate its potential use as a bioindicator. Agglomerates (~100 mussels) were manually collected using a stainless-steel spatula in ten sampling areas distributed throughout the whole lagoon and kept frozen. In the laboratory, 60 individuals were sorted by area for soft-tissue digestion. Each pool of 10 soft-tissue mussels (n = 6 by area) was wet-weighted and then placed in a 150-mL decontaminated glass beaker with 50 mL of 10% KOH. Samples were heated (40 °C) for 48 h, and digested samples were filtered in glass-fiber membranes. Microplastics were found in all samples of mussels (n = 60) from RFL; the particles were mostly lower than 100 µm with a mean concentration (±SD) of 35.96 ± 47.64 MPs g wet-weight−1. Microplastics were distinguished in seven shapes with different occurrences in samples (%): fiber (43.3%); fragment (34.3%); film (16.3%); sponge/foam (4.9%); pellet (0.57%), rope/filaments (0.17%); and undefined (0.4%). Thirteen colors of microplastics were found, but transparent (54.94%), black (10.77%), and white (9.36%) were the most common. Mytilopsis leucophaeata were useful to assess microplastic contamination in RFL and might be preferentially used in other invaded brackish systems instead of native and often threatened bivalves. Our results confirm the effective application of bivalves as an indicator of coastal microplastic pollution.

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“…Labeled MPs from pseudofeces of H. tubulosa were resuspended in much greater numbers than MPs from bottom sediment ( Bulleri et al, 2021 ). In addition, Rani-Borges et al (2023) found a decrease in the diameter of PS particles up to 25.3% smaller than the initial size after interaction with the digestive tract of amphipod Hyalella azteca within 7 days. It is suggested that biological activity of marine organisms inhabiting plastic debris floating in the sea may accelerate its degradation and contribute to the generation of MPs along with abiotic factors ( Jang et al, 2018 ).…”

Section: Introductionmentioning

confidence: 88%

Biodegradation of polyethylene in digestive gland homogenates of marine invertebrates

Istomina,

Chelomin,

Mazur

et al. 2024

PeerJ

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Вiotic factors may be the driving force of plastic fragmentation along with abiotic factors. Since understanding the processes of biodegradation and biological depolymerization of plastic is important, a new methodological approach was proposed in this study to investigate the role of marine invertebrate digestive enzymes in plastic biodegradation. The aim of this study is to evaluate the possibility of enzymatic biodegradation of polyethylene fragments in the digestive gland homogenate of marine invertebrates differing in their feeding type (Strongylocentrotus nudus, Patiria pectinifera, Mizuhopecten yessoensis). Significant changes are found in the functional groups of the polymer after 3 days of incubation in the digestive gland homogenates of the studied marine invertebrates. A significant increase in the calculated CI (carbonyl index) and COI (сarbon-oxygen index) indices compared to the control sample was observed. The results suggest that digestive enzymes of studied organisms may play an important role in the biogeochemical cycling of plastic.

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Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation

Cited by 10 publications

References 69 publications

Biofragmentation of Polystyrene Microplastics: A Silent Process Performed by Chironomus sancticaroli Larvae

Biofragmentation of Polystyrene Microplastics: A Silent Process Performed by Chironomus sancticaroli Larvae

First Record of Microplastic Contamination in the Non-Native Dark False Mussel Mytilopsis leucophaeata (Bivalvia: Dreissenidae) in a Coastal Urban Lagoon

Biodegradation of polyethylene in digestive gland homogenates of marine invertebrates

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