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61,005 resultsShowing papers similar to Baseline assessment of microplastics in commercially important marine bivalves from New York, U.S.A.
ClearAbundance and characterization of microplastics in wild and cultured blue mussels (Mytilus edulis) and American oysters (Crassostrea virginica) from Nova Scotia
Researchers quantified and characterized microplastics in wild and cultured blue mussels (Mytilus edulis) and American oysters (Crassostrea virginica) from Nova Scotia, assessing how plastic contamination varies between farmed and wild bivalves in Canadian coastal waters.
Microplastic Content in Oysters (Crassostrea virginica) from South Carolina, USA
Researchers analyzed microplastic content in oysters, water, and sediments from four estuaries in South Carolina, USA, quantifying contamination levels across these matrices in the commercially important Eastern oyster Crassostrea virginica.
Microplastic concentrations in two Oregon bivalve species: Spatial, temporal, and species variability
Researchers measured microplastic contamination in Pacific oysters and Pacific razor clams from 15 sites along the Oregon coast. They found microplastics in organisms from all sites, with whole oysters averaging about 11 pieces per individual, mostly fibers. This is the first study to document microplastics in Pacific razor clams and provides valuable coast-wide baseline data for comparing contamination across species, seasons, and locations.
Distribution and Characteristics of Microplastics in Barnacles and Wild Bivalves on the Coast of the Yellow Sea, China
Researchers surveyed microplastic contamination in wild barnacles and bivalves along the Yellow Sea coast of China. They found microplastics in all sampled organisms, with fibers being the dominant type, and observed spatial variation in contamination levels across different coastal sites. The study provides baseline data on microplastic pollution in wild shellfish populations that are smaller and potentially more vulnerable than farmed species.
Quantitative and qualitative determination of microplastics in oyster, seawater and sediment from the coastal areas in Zhuhai, China
Researchers quantified microplastics in oysters, seawater, and sediment along the Zhuhai coastline, finding 0.14–7.90 items/g in oyster soft tissue, 10–27.5 items/L in seawater, and 0.053–0.26 items/g in sediment, with polyethylene fibers as the dominant type across all matrices.
Microplastic Concentrations in Crassotrea gigas: Establishing a Baseline of Microplastic Contamination in Oregon’s Oyster Aquacultures
This study established baseline levels of microplastic contamination in Pacific oysters (Crassostrea gigas) grown for human consumption in a coastal aquaculture operation. Establishing baselines is essential for tracking changes in contamination over time and assessing the human health implications of eating contaminated shellfish.
The relationship between microplastics in eastern oysters (Crassostrea virginica) and surrounding environmental compartments in Long Island Sound
This study measured microplastics in eastern oysters, water, marine snow, and sediment in Long Island Sound and found low overall concentrations, with sediment having the most plastic. Few polymer types were shared between oysters and the surrounding environment, suggesting oysters are not efficient indicators of local microplastic pollution despite being widely used as biomonitors. The results help refine what kinds of plastic particles reach seafood consumers versus what remains in the broader environment.
Microplastics in commercial bivalves from China
Researchers analyzed microplastics in commercially sold bivalves from China, finding contamination across multiple species and geographic origins, with implications for human dietary microplastic exposure through shellfish consumption.
Assessment of microplastics in oysters in coastal areas of Taiwan
Microplastics were quantified in oysters from 22 sites along Taiwan's coastlines, providing a comprehensive baseline for MP contamination in commercially farmed and wild oysters across different coastal zones.
Contamination by microplastics in oysters shows a widespread but patchy occurrence in a subtropical estuarine system
Researchers examined microplastic contamination in oysters across a subtropical estuarine system and found widespread but highly variable levels of pollution. Higher contamination generally correlated with areas of greater human activity, though unexpectedly high levels were also found in remote marine protected areas. The study found that 94 percent of oyster samples contained microplastics, suggesting these bivalves could serve as indicators of environmental contamination.
Nationwide monitoring of microplastics in bivalves from the coastal environment of Korea
A nationwide monitoring program assessed microplastic contamination in bivalves from coastal environments across South Korea. The study found microplastics in bivalves at sites throughout the coastline, confirming their utility as bioindicators and establishing national baseline contamination data.
Microplastic in cultured oysters from different coastal areas of China
Researchers quantified microplastics in oysters from 17 coastal sites across China, finding contamination at every location with an average of 2.93 particles per gram of tissue. The most common types were fibers and fragments, and the study highlights the potential for human dietary exposure to microplastics through seafood consumption.
Microplastics in mussels along the coastal waters of China
Researchers surveyed microplastic contamination in mussels collected from coastal waters spanning the entire coastline of China. They found microplastics in all samples, with fibers being the dominant type and concentrations varying by region. The study provides the first large-scale baseline data on microplastic pollution in Chinese coastal bivalves, highlighting areas of particular concern and confirming that filter-feeding shellfish are reliable indicators of local microplastic contamination.
Microplastic Concentrations in Two Oregon Bivalve Species: Spatial, Temporal, and Species Variability
Pacific oysters and razor clams from Oregon were found to contain microplastics, with concentrations varying by species, location, and season. The findings have direct relevance for human health since both species are commercially harvested and consumed.
Factors influencing the microplastic contamination of bivalves from the French Atlantic coast: Location, season and/or mode of life?
This study characterized microplastic contamination in blue mussels and Pacific oysters collected from the French Atlantic coast, examining how season, location, and organism size influence contamination levels. The findings provide a baseline for monitoring bivalve contamination and informing seafood safety assessments.
Microplastic pollution in oyster bed ecosystems: An assessment of the northern shores of the United Arab Emirates
Researchers measured microplastic contamination in oysters and surrounding sediments at five sites along the UAE coastline, finding microplastics in all sediment samples and more than half of oyster samples — with plastic fibers making up 93% of particles found. The study is the first of its kind in the region and highlights potential risks to marine food webs and seafood safety.
Quantification and characterization of microplastics in blue mussels (Mytilus edulis): protocol setup and preliminary data on the contamination of the French Atlantic coast
Researchers quantified and characterized microplastics in blue mussels from a study site, finding microplastics in a large proportion of sampled individuals and documenting the types and sizes of particles present.
First occurrence and composition assessment of microplastics in native mussels collected from coastal and offshore areas of the northern and central Adriatic Sea
Microplastics were detected for the first time in native mussels from coastal and offshore areas of the northern and central Adriatic Sea, with chemical analysis confirming common plastic polymers and offshore populations also affected. The study establishes a baseline for microplastic contamination in an important Mediterranean commercial shellfish species.
Spatio-temporal contamination of microplastics in shellfish farming regions: A case study
Researchers assessed microplastic contamination in a major French shellfish farming region over one year, finding that mussels and oysters contained confirmed microplastics with polyethylene and polypropylene as dominant polymer types, varying by site and season.
Towards Risk Assessments of Microplastics in Bivalve Mollusks Globally
Researchers compiled data from 22 countries to assess the risk of microplastic contamination in bivalve mollusks such as mussels and oysters. While most countries showed relatively low pollution levels, the chemical composition of the microplastics found in bivalves varied widely, with some polymers posing greater health concerns than others. The study estimates that regular consumption of contaminated bivalves could represent a meaningful pathway for human microplastic exposure.
Microplastics contamination in bivalves from the Daya Bay: Species variability and spatio-temporal distribution and human health risks
Researchers assessed microplastic contamination in six species of bivalves from Daya Bay, China, finding microplastics present in 87 to 93% of individuals sampled. Sediment-dwelling bivalves had higher microplastic levels than water-dwelling species, and the types of microplastics found in the shellfish matched those in the surrounding seawater and sediment. A risk assessment based on polymer hazard levels indicated that microplastic contamination in these bivalves may pose health risks to humans who consume them as seafood.
Presence of microplastics in six bivalve species (Mollusca, Bivalvia) commercially exploited at the Pacific coast of Costa Rica, Central America
Researchers found microplastics in all six commercially exploited bivalve species sampled from the Pacific coast of Costa Rica, with prevalence ranging from 74% to 100% across species, raising concerns about human exposure through seafood consumption in Central American coastal communities.
Microplastics in bivalves and their habitat in relation to shellfish aquaculture proximity in coastal British Columbia, Canada
Researchers compared microplastic concentrations in Manila clams and Pacific oysters grown at commercial shellfish aquaculture sites versus reference beaches in coastal British Columbia, finding that proximity to aquaculture operations influenced microplastic levels in both bivalves and surrounding sediments.
Abundance, composition, and distribution of microplastics in intertidal sediment and soft tissues of four species of Bivalvia from Southeast Brazilian urban beaches
Researchers found 100% microplastic contamination in intertidal sediments and four bivalve species from urbanized Brazilian beaches, identifying polypropylene, polyethylene, and PET polymers in organisms commonly consumed by humans.