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61,005 resultsShowing papers similar to Microplastic concentrations in two Oregon bivalve species: Spatial, temporal, and species variability
ClearMicroplastic 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.
Microplastics in Pacific Northwest Bivalves: Ecological Prevalence, Harvester-Consumer Exposure, and Aquarium Exhibit Outcomes
Researchers quantified microplastics in Pacific oysters and razor clams from 15 coastal sites in Oregon, finding widespread contamination across the Pacific Northwest coast. The study also assessed exposure risks to seafood harvesters and consumers, contributing to understanding of how coastal plastic pollution reaches human food supplies.
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.
Microplastic Exposure by Razor Clam Recreational Harvester-Consumers Along a Sparsely Populated Coastline
Researchers quantified microplastic burdens in Pacific razor clams collected from eight harvest sites along the Olympic Coast, Washington, and combined this with questionnaire data from 107 recreational harvesters to estimate annual microplastic ingestion from clam consumption. The study provided baseline contamination data for a culturally and economically important shellfish species and estimated the dietary microplastic exposure of coastal harvester-consumers.
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.
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 Pnw, Bivalves, and the Impact on Oceanic Ecosystems and Human Health
This review discusses how microplastics accumulate in bivalves such as oysters and mussels in Pacific Northwest coastal waters, how they move up the food chain, and why seafood consumers in the region may face elevated exposure risks. The paper synthesizes the threat to both marine ecosystem stability and human health from microplastic bioaccumulation in commercially important shellfish.
Abundance 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.
Baseline assessment of microplastics in commercially important marine bivalves from New York, U.S.A.
Researchers established the first baseline assessment of microplastics in eastern oysters and hard clams from New York coastal waters, finding microplastic contamination across all sampling sites and providing reference data for the northeast U.S. Atlantic region.
Low incidence of microplastic contaminants in Pacific oysters (Crassostrea gigas Thunberg) from the Salish Sea, USA
Researchers examined wild Pacific oysters (Crassostrea gigas) from the Salish Sea in Washington State and found a relatively low incidence of microplastic contamination, with approximately 63% of oysters containing microparticles at an average of about 1.75 particles per individual. The results suggest that microplastic burden in this commercially important shellfish may be lower than reported in more heavily polluted regions.
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.
Exploring microplastics in commercial bivalve species and in bivalve aquaculture waters: Insights from the southern Pacific
Microplastics were detected in multiple commercially sold bivalve species (such as mussels and oysters) and in nearby inland and coastal waters. Because bivalves are widely eaten by humans, the findings raise direct concerns about microplastic dietary exposure through seafood consumption.
Microplastics in four bivalve species and basis for using bivalves as bioindicators of microplastic pollution
Researchers found microplastics in 80% of shellfish samples (scallops, mussels, oysters, and clams) collected across four seasons in Qingdao, China. PVC and rayon fibers were the most common plastic types, with different shellfish species accumulating different sizes and types of particles. Since these shellfish are commonly eaten by people, the findings highlight a direct route for microplastics to enter the human diet through seafood.
Microfiber Content in Pacific Oysters (Crassostrea gigas) from Morro Bay, California
Researchers measured microfiber contamination in Pacific oysters (Crassostrea gigas) from Morro Bay, California, to assess exposure levels in a commercially important shellfish species. Microfibers were detected in oysters across sampling sites, with concentrations varying by location and season, indicating consistent exposure to synthetic fiber pollution in this coastal environment.
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.
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.
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.
Microplastics in Marine and Estuarine Species From the Coast of Portugal
Researchers surveyed microplastic contamination in five marine and estuarine species collected from the coast of Portugal, including mussels, clams, and polychaetes. They found microplastics in all species examined, with fibers being the most common type, and noted differences in contamination levels between sampling sites. The study contributes baseline data on microplastic pollution in commercially relevant Portuguese seafood species.
The occurrence and exposure of microplastics in bivalves from Qingdao, China
Researchers surveyed microplastic contamination in bivalves such as clams and mussels from the coast of Qingdao, China, and assessed human dietary exposure from eating them. They found an average of about one microplastic particle per individual shellfish, with fibers and rayon being the most common types. The study suggests that regular bivalve consumption in the region contributes to ongoing human microplastic exposure.
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.
Microplastic concentrations in cultured oysters in two seasons from two bays of Baja California, Mexico
Researchers measured microplastic concentrations in cultured Pacific oysters from two bays in Baja California, Mexico, across winter and summer seasons. Microfibers were the most abundant particle type found in all samples, with higher concentrations observed during winter. The study suggests that seasonal and spatial factors influence microplastic accumulation in farmed shellfish, which is relevant given that oysters are consumed whole by humans.
Microplastic pollution in marine bivalves, surface water and sediments from an aquaculture in Portugal and possible intake by humans
Researchers assessed microplastic contamination in oysters, clams, surface water, and sediments at a Portuguese shellfish farm and estimated the resulting daily human intake from consuming these organisms. Diploid oysters and clams had higher microplastic levels than triploid oysters, and seasonal differences in accumulation were observed. The study provides practical estimates of how much microplastic people may consume through shellfish, contributing to ongoing efforts to quantify dietary exposure.
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.
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.