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20 resultsShowing papers similar to Microplastic data from surface waters and in stream-rearing steelhead trout (Oncorhynchus mykiss) in a rural coastal California stream
ClearMicroplastic data from surface waters and in stream-rearing steelhead trout (Oncorhynchus mykiss) in a rural coastal California stream
This dataset entry describes microplastic measurements from the water and the gut contents of juvenile steelhead trout in Scott Creek, a rural California coastal stream, providing baseline contamination data for a salmon-bearing watershed with minimal urban influence. Even in relatively pristine, low-traffic streams, microplastics are present and entering fish, suggesting contamination is pervasive in California waterways regardless of urbanization level. The data supports evaluation of ecological risks to native fish species that are already under pressure from other stressors.
Microplastic concentration and composition in surface waters and in stream-rearing Steelhead Trout (Oncorhynchus mykiss) in a rural coastal California stream
A survey of a rural coastal California stream found microplastics in both the water and in 60% of juvenile steelhead trout sampled, with fibers making up the dominant particle type in both cases. Microplastic levels in the water peaked during the low-flow summer months, suggesting that reduced dilution allows particles to accumulate seasonally. The high rate of microplastic ingestion in juvenile steelhead—a threatened species—raises concern about whether plastic ingestion contributes to the population pressures already facing these fish.
Microplastics in brown trout (Salmo trutta Linnaeus, 1758) from an Irish riverine system
Microplastic prevalence and characteristics were assessed in brown trout (Salmo trutta) from an Irish riverine system to investigate plastic ingestion in a freshwater salmonid. The study found microplastics in a proportion of sampled fish, adding to the limited literature on microplastic ingestion in freshwater salmonids and highlighting rivers as an exposure pathway for these commercially important fish.
Microplastics in juvenile Chinook salmon and their nearshore environments on the east coast of Vancouver Island
Researchers investigated microplastic ingestion in juvenile Chinook salmon and their nearshore marine environments on the east coast of Vancouver Island, finding microplastics present in both fish digestive tracts and surrounding waters and characterizing the types of particles consumed.
research data
Researchers compiled a complete microplastic particle dataset extracted from tissue samples of two commercially important marine fish species, Megalaspis cordyla and Katsuwonus pelamis (skipjack tuna), using standardized digestion and stereomicroscopy-based identification protocols.
Influence of marine habitat on microplastic prevalence in forage fish and salmon in the Salish Sea
Scientists examined microplastic ingestion in forage fish and juvenile salmon across different marine habitats in the Salish Sea of the Pacific Northwest. They found that fish from nearshore urban areas had more microplastics in their stomachs than those from offshore or less developed areas. The results suggest that habitat type and proximity to human activity are important predictors of microplastic exposure in marine food webs.
research data
This is a supplementary research dataset (not a standalone paper) containing raw microplastic particle counts from tissue samples of two commercially important fish species, Megalaspis cordyla and skipjack tuna, used to support a peer-reviewed manuscript on fish microplastic contamination.
research data
This is a supplementary research dataset (not a standalone paper) containing raw microplastic particle counts from tissue samples of two commercially important fish species, Megalaspis cordyla and skipjack tuna, used to support a peer-reviewed manuscript on fish microplastic contamination.
research data
This is a supplementary research dataset (not a standalone paper) containing raw microplastic particle counts from tissue samples of two commercially important fish species, Megalaspis cordyla and skipjack tuna, used to support a peer-reviewed manuscript on fish microplastic contamination.
Assessment of microplastic contamination in rainbow trout (Oncorhynchus mykiss) and surface water of a high-altitude aquaculture system in the Chehel Chai River, Iran
Researchers investigated microplastic contamination in both farmed rainbow trout and the surface water of the Chehel Chai River in Iran, finding microplastics in fish digestive tracts, gills, and skin. A total of 50 fish were analyzed, revealing widespread presence of plastic particles across all tissue types examined. The study raises concerns about microplastic transfer to humans through consumption of farmed fish from contaminated waterways.
The Influence of Polystyrene Microplastics on Juvenile Steelhead Trout (Oncorhynchus mykiss)
This study investigated the effects of polystyrene microplastics on juvenile steelhead trout, a commercially and ecologically important anadromous fish. As top predators, steelhead are at particular risk from microplastic bioaccumulation through their prey, and the review highlights gaps in research compared to smaller model species. Understanding how microplastics affect large predatory fish is critical because these species are widely consumed by humans and play key roles in connecting freshwater and marine ecosystems.
research data
This is a research dataset (not a primary research paper) containing the complete microplastic particle records extracted from tissue samples of two commercially important marine fish species — Megalaspis cordyla and skipjack tuna — compiled as supplementary material for a published manuscript.
No evidence of spherical microplastics (10–300 μm) translocation in adult rainbow trout (Oncorhynchus mykiss) after a two-week dietary exposure
Rainbow trout were exposed to spherical microplastics ranging from 10 to 300 micrometers to determine whether particles translocate from the gut into body tissues in adult fish. No evidence of microplastic translocation from the gastrointestinal tract to systemic tissues was found, suggesting that fish gut removal before consumption reduces but may not eliminate human dietary microplastic exposure.
The effect of urban point source contamination on microplastic levels in water and organisms in a cold‐water stream
Microplastic concentrations in water, macroinvertebrates, and trout in a Wisconsin stream increased significantly downstream of stormwater outfalls and a wastewater plant. The study demonstrates that point sources of pollution drive measurable increases in microplastic contamination in freshwater food webs.
Occurrence and amount of microplastic ingested by fishes in watersheds of the Gulf of Mexico
Researchers quantified microplastic ingestion by fishes across several freshwater and estuarine watersheds of the Gulf of Mexico. The study documented widespread microplastic occurrence in fish from these environments, contributing important data about freshwater contamination at a time when most research had focused on marine ecosystems.
Identification of the composition and abundance of microplastics in the digestive tract of fish in the Banjaran River, Banyumas District
Researchers identified and quantified microplastic composition and abundance in digestive tract contents of wild-caught fish from a coastal fishery, documenting ingestion rates, polymer types, and particle morphologies across multiple commercially important species.
Natural history matters: Plastics in estuarine fish and sediments at the mouth of an urban watershed
Estuarine sediments in an urban California creek contained about 10,000 microplastic pieces per square meter, dominated by fibers, and nearly 25% of fish collected contained plastics, with species-specific ingestion patterns reflecting different natural histories. The study also found multiple semivolatile organic compounds in fish tissue, suggesting plastic ingestion co-occurs with chemical contamination in urban estuaries.
Microplastics in the Surface Water and Gastrointestinal Tract of Salmo trutta from the Mahodand Lake, Kalam Swat in Pakistan
Researchers detected microplastics in both the surface water and gastrointestinal tracts of brown trout (Salmo trutta) from a high-altitude lake in Pakistan, demonstrating that microplastic contamination has reached remote mountain ecosystems far from urban pollution sources.
Distributions of Microplastics in Surface Water, Fish, and Sediment in the Vicinity of a Sewage Treatment Plant
Researchers examined the spatial and temporal distribution of microplastics in surface water, fish, and sediment upstream and downstream of a sewage treatment plant (STP) discharging into the Tanchon stream in South Korea. They found that the STP was a significant point source of microplastics, with downstream concentrations elevated in water and sediment, and microplastics detected in fish gut contents at both sites.
Quantification and Categorization of Macroplastics (Plastic Debris) within a Headwaters Basin in Western North Carolina, USA: Implications to the Potential Impacts of Plastic Pollution on Biota
Researchers quantified and categorized plastic debris along Richland Creek, a heavily forested watershed in western North Carolina. They collected over 1,700 pieces of plastic, predominantly films and hard plastics, with foam and film items showing the highest fragmentation rates. A laboratory component confirmed that collected items readily break down into microplastics, demonstrating how macroplastic litter in even rural waterways serves as a continuous source of microplastic pollution.