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16 resultsShowing papers similar to Microplastic accumulation, depuration dynamics and localization in environmental compartments: combination of experimental set ups and field studies
ClearMicroplastic accumulation, depuration dynamics and localization in environmental compartments: combination of experimental set ups and field studies
Researchers tracked microplastic accumulation and depuration in multiple environmental compartments and marine organisms using controlled microcosm experiments. The study found that particles distribute differently across sediment, water, and biota, and that biological depuration is incomplete within realistic timeframes.
Beyond the exposure phase: Microplastic depuration and experimental implications
This review systematically analyzed studies of microplastic depuration in aquatic organisms, focusing on how long plastic particles are retained after exposure ends. The authors found that depuration kinetics vary by species, particle size, and polymer type, and that current studies inadequately characterize post-exposure clearance.
Microplastics in Marine Environment: Occurrence, Distribution, and Extraction Methods in Marine Organisms
This review summarized the occurrence, distribution, and extraction methods of microplastics in marine organisms, highlighting how these particles enter marine food webs through runoff and atmospheric deposition and pose risks to ecosystems and human health.
Microplastic in tissue of marine organisms
This review summarizes microplastic detection across various marine organism tissues, cataloging accumulation in fish, invertebrates, and marine mammals and highlighting that ingestion and trophic transfer are widespread across marine food webs.
Time-course distribution of fluorescent microplastics in target tissues of mussels and polychaetes
Researchers tracked the time-course distribution of fluorescent microplastics in mussels and polychaetes, finding that both organisms accumulated particles in digestive and gill tissues with distinct uptake and depuration patterns depending on species and tissue type.
Microplastics Residence Time in Marine Copepods: An Experimental Study
Laboratory experiments measured how long microplastics remain in marine copepods after ingestion, finding that residence times vary by particle type and size, with some particles persisting longer than others and informing estimates of microplastic transfer through marine food webs.
Occurrence, Distribution, and Extraction Methods of Microplastics in Marine Organisms
This review synthesizes global data on microplastic occurrence and distribution across marine organisms, comparing the advantages and limitations of different extraction and identification methods used in the field.
The legacy effect of microplastics on aquatic animals in the depuration phase: Kinetic characteristics and recovery potential
A meta-analysis of microplastic depuration studies across 68 kinetic curves from aquatic animals found that many species retain a fraction of ingested MPs even after prolonged exposure-free periods, with retention rates and recovery timelines varying by species and MP type. The findings highlight the legacy effects of microplastic exposure that persist after contamination ends.
Understanding the influence of biota in the transfer of different sized microplastics between environmental compartments of marine ecosystem
This study investigated how marine micro- and macro-biota influence the transport of microplastics between environmental compartments such as water, sediment, and organisms, finding that biological interactions substantially alter the distribution of particles beyond what hydrodynamics alone would predict.
Uptake and depuration kinetics of microplastics with different polymer types and particle sizes in Japanese medaka (Oryzias latipes)
Researchers studied the uptake and depuration kinetics of microplastics with different polymer types and sizes in Japanese medaka fish. They found that smaller particles accumulated more readily in fish tissues and were retained longer than larger ones, with particle distribution varying by organ. The study provides important quantitative data on how microplastic characteristics influence their accumulation and clearance in fish, which is relevant to understanding food chain transfer.
Development of a toolbox for the analysis of microplastic-tissue interactions in two benthic freshwater organisms
Researchers developed a histological toolbox to analyze microplastic-tissue interactions in two benthic freshwater invertebrates, addressing the methodological gap in available protocols for detecting whether ingested microplastics simply pass through the gut or accumulate at specific tissue zones and translocate into organism tissues.
Accumulation and Depuration of Microplastics by Oysters Upon the Laboratory Conditions
Researchers monitored microplastic accumulation and elimination in oysters over 30 days, finding that the digestive tract accumulated the highest concentrations (bioaccumulation factors increasing from ~10 to ~41 over 10 days), and that most particles were eliminated within 30 days of depuration.
Toward an Improved Understanding of the Ingestion and Trophic Transfer of Microplastic Particles: Critical Review and Implications for Future Research
A comprehensive review of over 800 species found that while microplastics are routinely found in the digestive tracts of aquatic organisms, they do not appear to bioaccumulate or biomagnify through food webs, with over 99% of observations locating particles in the gastrointestinal tract rather than tissues. The review calls for more standardized sampling and reporting to enable better temporal and spatial trend analysis.
Depuration kinetics and accumulation of microplastics in tissues of mussel Mytilus galloprovincialis
This study tracked how mussels take in, accumulate, and eventually expel microplastics of different sizes over time. Larger microplastics accumulated more in the gills and digestive gland, while smaller particles spread more widely through the body. Since mussels are popular seafood eaten whole, understanding how they retain microplastics helps estimate how much plastic people may be consuming through shellfish.
The fate of microplastic in marine sedimentary environments: A review and synthesis
A systematic review of 80 papers on microplastics in marine sediments found median concentrations varied widely by sediment environment, with fibers dominating many locations, and showed that sediment grain size and organic carbon content influence microplastic accumulation.
DEVELOPMENT OF A NOVEL PROTOCOL FOR THE EXTRACTION OF SMALL MICROPLASTICS (1-5 µm) FROM BIOLOGICAL TISSUES
Researchers developed a novel extraction protocol to isolate and quantify small microplastics (1–5 µm) from biological tissues, addressing a major gap in marine contamination studies. The method improves detection of these hard-to-analyze particles, which are more likely to penetrate cells and accumulate in organisms.