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61,005 resultsShowing papers similar to Microfiber Content in Pacific Oysters (Crassostrea gigas) from Morro Bay, California
ClearPlastic Microfibers Impact the Immune System of the Pacific Oyster
Pacific oysters (Crassostrea gigas) from Morro Bay Estuary were exposed to polyester microfibers and showed altered immune gene expression and elevated hemocyte activity, indicating that microfiber exposure triggers measurable immune system responses in commercially important shellfish.
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.
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.
Ingestion and depuration of polyester microfibers by Crassostrea gasar (Adanson, 1757).
Researchers exposed the oyster Crassostrea gasar to environmentally sourced polyester microfibers at 0.5 mg/L and found accumulation in gill and digestive gland tissues, with evidence of clearance after a depuration period, raising concerns about microfiber effects on bivalve aquaculture.
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.
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.
Evidence of microplastics ingestion by Crassostrea gigas (Pacific oyster) at the austral Buenos Aires marine-coastal areas (Southwest Atlantic)
Researchers detected microplastics in Pacific oysters (Crassostrea gigas) from 23 composite samples collected at Argentine coastal sites, finding an average of 0.22 items/g wet weight, with fibers comprising 98.3% of particles and the highest contamination levels at Arroyo Parejas Beach and Puerto Belgrano, marking the first such documentation in the austral Buenos Aires region.
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.
Abundance of microplastics in oysters Crassostrea gigas and water from a highly anthropized estuary.
Researchers measured microplastic concentrations in surface water and whole tissue of Crassostrea gigas oysters at two sites in the Bahia Blanca estuary, a highly anthropized system in Argentina with major port, petrochemical, and urban wastewater inputs. MPs ranged from 6 to 50 items/L in water and 0 to 2 items/g wet weight in oyster tissue, with transparent and blue fibers predominating in both matrices.
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.
Microfibers in Mytilus species(Mollusca, Bivalvia)from Southern California Harbors, Beaches, and Supermarkets
This study found microplastic fibers in both wild and farmed mussels from Southern California harbors, beaches, and supermarkets, with fibers present in the majority of samples. The presence of microfibers in commercially sold mussels confirms that these filter feeders are a direct route for human consumption of microplastics through everyday seafood.
Assessing Microplastic Contamination and Depuration Effectiveness in Farmed Pacific Oysters (Crassostrea gigas)
Researchers assessed microplastic contamination in farmed Pacific oysters from Portugal's Lima estuary and tested whether commercial and laboratory depuration reduces microplastic levels. Contamination was higher in autumn than winter, all microplastics found were fibers (polyethylene terephthalate dominant), and depuration reduced but did not eliminate microplastic loads.
Microplastic Contamination in Pacific Oysters (Crassostrea gigas) from Haizhou Bay: Tissue-Specific Distribution, Digestive Enzyme Dysfunction, and Lipid Metabolism Perturbation
This study systematically evaluated microplastic distribution in Pacific oysters from Haizhou Bay, China, finding MP contamination across all tissues examined and documenting that MP accumulation altered digestive enzyme activities and fatty acid metabolism in these commercially harvested shellfish.
First register of microplastic contamination in oysters (Crassostrea gasar) farmed in Amazonian estuaries
This is the first study to document microplastic contamination in farmed oysters from the Amazon region of Brazil, finding that 58% of the oysters contained microplastics, mainly nylon fibers. The particles accumulated most in the oysters' digestive glands and reproductive organs. Since oyster farming is an important food source and livelihood in the Amazon, the findings highlight a need for better monitoring and depuration systems to reduce human exposure to microplastics through shellfish.
Do Environmentally Relevant Concentrations of Microplastics Pose a Threat to the Eastern Oyster, Crassostrea Virginica?
This study exposed eastern oysters to polyester microfibers at environmentally realistic concentrations for 45 days, finding that even low doses affected their physiology including feeding, growth, and energy use. The results suggest that ecologically relevant microplastic levels may pose a threat to commercially important filter-feeding shellfish.
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.
Microplastic contamination in filter-feeding oyster Saccostrea cuccullata: Novel insights in a marine ecosystem
Researchers examined microplastic contamination in the filter-feeding oyster Saccostrea cuccullata collected from five coastal sites. They found microplastics present in all oyster specimens, with fibers and fragments being the most common types detected. The study highlights how filter-feeding shellfish can accumulate microplastics from surrounding waters, raising concerns about contamination in marine food chains.
Seasonal change of microplastics uptake in the Pacific oysters Crassostrea gigas cultured in the Yellow Sea and Bohai Sea, China
Researchers monitored seasonal microplastic uptake in Pacific oysters from five aquaculture farms in China's Yellow and Bohai Seas, finding that autumn had the highest accumulation, fibers were the dominant shape, and PET and cellophane were the most common polymers, with oyster contamination positively correlated with surrounding seawater levels.
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.
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.
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.
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 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.
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.