Filtration, assimilation and elimination of microplastics by freshwater bivalves

Moreschi, Andressa; Callil, Cláudia Tasso; Christo, Susete Wambier; Ferreira, Augusto Luiz; Nardes, Carolina Silva; Faria, Érika de; Girard, Pierre

doi:10.1016/j.cscee.2020.100053

Cited by 27 publications

(7 citation statements)

References 14 publications

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“…The decrease in MP aссumulation after the 10-th day of exposure can be explained by the adjusted equilibria between ingestion and elimination of particles. For example, the exposure of bivalve Anodontites trapesialis to MP of 55-100 µm in size (75 mg L -1 during 3-192 h) had shown that both accumulation and elimination of MP was at a rather high levels of 78 % in gill tissues, and 90 % in the eliminated material (Moreschi et al, 2020). Nevertheless, the number of items in the tissues of molluscs remained rather high.…”

Section: Resultsmentioning

confidence: 99%

Accumulation of microplastics in the bivalve mollusc Unio tumidus under experimental and field exposures

Мартынюк

2022

Biol. Stud.

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Background. An increased production and widespread use of plastics have made microplastic (MP) pollution a serious environmental problem. Most of MP found in the marine environment comes from rivers, however, the freshwater pollution by MP is less studied. Filter-feeding organisms, like bivalve molluscs, are the primary target organisms for MP. Nevertheless, the studies of MP accumulation in the bivalves mainly focus on the marine species and depend on expensive equipment. The goal of this study was to detect the presence of MP in the body of freshwater bivalve mollusc Unio tumidus from a typical field site in Western Ukraine and under laboratory sub-chronic exposure to microplastic at a typical concentration for freshwater. Materials and Methods. For the study, we exposed molluscs to waterborne MP (0.1–0.5 mm) in the concentration of 1.0 mg L-1 corresponding to ~850 items L-1 for 14 days and analysed the concentration of MP in the soft tissues and water every two days. The molluscs and water from the field site, confirmed as polluted one, were also analysed. To estimate the number of MP particles, we used a modified method based on the cleavage of biological materials with potassium hydroxide and hydrogen peroxide and microscopic analysis of MP after the staining with fluorescent Nile Red dye. Results. The MP concentration in the soft tissues of the specimens from the reference site was 9.5 items per soft body and demonstrated a bell-shaped response curve throughout the 14-days exposure with maximum of 327.0 items per body on the 10th day and a negative correlation with the concentration of MP in the experimental tank that changed within the range of 590–790 items L-1. The level of MP in the field specimens from the polluted area was 76.5 items per body, and in the water, it was about 103 items L-1. The maximum MP abundance factor, calculated as CFi = Ci/C0 (utilising the value 9.5 as C0), was 83.18 and 8.05 for 10 days of exposure and field specimens, correspondingly. Conclusion. These data indicate the high accumulative ability of U. tumidus towards microplastics and draw attention to the utilizing of this species for the biomonitoring of microplastics pollution and depuration of surface waters from it.

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Section: Resultsmentioning

confidence: 99%

Accumulation of microplastics in the bivalve mollusc Unio tumidus under experimental and field exposures

Мартынюк

2022

Biol. Stud.

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“…Through filtration and excretion, bivalves impact the cycle of nutrients in freshwater ecosystems [52], including the environmental concentrations of MPs. It is important to consider that all the substances and particles, including MPs, expelled in the water column by bivalves become part of the trophic chain [53].…”

Section: Smps Uptake and Ingestion By Anodonta Cygneamentioning

confidence: 99%

“…Indeed, several laboratory studies highlighted the toxic effects of MP exposure in different species of freshwater bivalves, such as tissue damage, inflammatory response, intestinal damage, protein modulation and neurotoxicity [17,[54][55][56]. In particular, the MP uptake may affect the reproduction process of Unionid individuals, as these bivalves incubate their larvae in the brood sacs composed of gill filaments and septum [53,57]. Furthermore, the consumption by predators of bivalves that have accumulated MPs can lead to biomagnification phenomena along the trophic chain [58,59].…”

Section: Smps Uptake and Ingestion By Anodonta Cygneamentioning

confidence: 99%

Microplastics, Additives, and Plasticizers in Freshwater Bivalves: Preliminary Research of Biomonitoring

Cesarini

Corami

Rosso

et al. 2023

Water

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Microplastics are widespread in freshwater environments and could impact these ecosystems. Bivalves are freshwater organisms that are particularly exposed to microplastic contamination. Therefore, in this preliminary study, the accumulation of microplastics, plasticizers, and additives in the freshwater bivalves Anodonta cygnea was investigated through active biomonitoring. Specimens bought commercially were exposed in three rivers in Central Italy for different exposure times: short (1 month) and long (3 months). The gills and the gastrointestinal tract (GIT) were analyzed separately to evaluate the possible uptake and ingestion of particles via Micro-FTIR. For the first time, small microplastics (SMPs, 5–100 µm), plasticizers, additives, and other micro-litter components, e.g., natural and non-plastic synthetic fibers (APFs), were identified in the bivalve A. cygnea. The most abundant polymer in the gills (94.4%) and in the GITs (66.1%) was polyamide, which had the highest concentration in each river. A decrease in SMPs’ abundance was observed over time in the gills in each river, while the abundance in the GIT increased. Compared to polymers, a greater variety of APFs was observed in rivers. The APFs changed during the time of exposure and between different rivers more evidently than polymers, allowing for a clearer identification of the possible sources. These results highlighted the plastic pollution caused by SMPs using freshwater bivalves as sentinel organisms and the need to further investigate the additives that can be proxies of the presence of microplastics in the environment and biota.

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“…The average MPs size found in bivalves was around 17-88 μm. The organisms eliminated from 0 to 3300 particles during the study [56]. Research work was conducted by Weber and his team to study the effect of microplastics and thermal stress on Dreissena polymorpha, a freshwater mussel.…”

Section: Microplastic Studies In Mollusks and Amphibiansmentioning

confidence: 99%

Detrimental effects of microplastics in aquatic fauna on marine and freshwater environments – A comprehensive review

Jaikumar¹,

Tomson²,

Pappuswamy³

et al. 2022

J App Biol biotech

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The world is ever evolving and new technologies are popping up everywhere. New inventions and discoveries have created a better world, but not a sustainable one. The whole earth is drowning in various pollutants and garbage. Plastic pollution has garnered sufficient attention and there are various teams and organizations working toward cleaning our beaches, parks, and environment. However, all these actions will not suffice as plastics have trickled down into microplastics, which are posing a greater threat to our water systems and aquatic fauna. Several ongoing researches focus on marine microplastics, while only 13% of studies are on freshwater. Research on microplastics is now on the rise, with new strategies and restrictions being put into place to curb its accumulation in our marine and freshwater environments. In a recent study, microplastics were found to be present in human blood with. Out of 22 people tested, 17 test subjects had microplastics present in their blood. This review focuses on the adverse effects of microplastics in marine and freshwater ecosystems, with special focus on aquatic fauna.

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Filtration, assimilation and elimination of microplastics by freshwater bivalves

Cited by 27 publications

References 14 publications

Accumulation of microplastics in the bivalve mollusc Unio tumidus under experimental and field exposures

Accumulation of microplastics in the bivalve mollusc Unio tumidus under experimental and field exposures

Microplastics, Additives, and Plasticizers in Freshwater Bivalves: Preliminary Research of Biomonitoring

Detrimental effects of microplastics in aquatic fauna on marine and freshwater environments – A comprehensive review

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