We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Microbiome, mixotrophic algae, zooplankton, and fish amino acid and phospholipid fatty acid content in terrestrial and plastic carbon treatments
ClearMicrobiome, mixotrophic algae, zooplankton, and fish amino acid and phospholipid fatty acid content in terrestrial and plastic carbon treatments
This dataset contains amino acid and fatty acid composition data from a four-trophic-level aquatic food web experiment that included plastic carbon as a treatment. The data supports research on how plastic carbon enters and moves through aquatic food webs from microbes to fish.
The second life of terrestrial and plastic carbon as nutritionally valuable food for aquatic consumers
Researchers used carbon-13-labeled experiments to trace how terrestrial leaves, lignin, and polystyrene microplastics are processed through a four-level aquatic food web from microbes to fish. While microbes could synthesize amino acids and lipids from plant-derived carbon, they produced far fewer nutritional biomolecules from polystyrene, and the resulting molecules were still incorporated into zooplankton and fish tissues. The study shows that plastic carbon can move through food webs and become part of animal body tissues, though at reduced nutritional value, raising concerns about the long-term health of aquatic ecosystems and the quality of fish consumed by humans.
What do microplastics mean for aquatic food webs? Some insight from ongoing experimental work in a freshwater ecosystem laboratory.
Researchers used large in-lake mesocosm experiments to investigate whether microplastic exposure altered essential fatty acid composition in yellow perch and zooplankton in a freshwater food web. Fatty acid composition was unaffected when supplemental food was provided, but preliminary results suggested lower fish body weight at high MP concentrations (29,240 particles/L) without supplemental feeding, indicating food dilution as a potential mechanism of MP impact.
Increasing microplastic exposure had minimal effects on fatty acid composition in zooplankton and yellow perch in a large, in-lake mesocosm experiment
Researchers found that increasing microplastic exposure levels had minimal effects on fatty acid composition in an aquatic organism, suggesting that at the tested concentrations, microplastics do not substantially disrupt lipid metabolism.
Polystyrene microplastics exposure modulated the content and the profile of fatty acids in the Cladoceran Daphnia magna
Researchers exposed Daphnia magna to polystyrene microplastics for 21 days and found that fatty acid content and composition were significantly altered. The changes suggest microplastics interfere with energy allocation in this freshwater crustacean, with effects varying by particle size and concentration.
Polystyrene microplastics decrease accumulation of essential fatty acids in common freshwater algae
Scientists exposed the freshwater alga Chlorella sorokiniana to polystyrene microplastics and found significant reductions in essential omega-3 and omega-6 fatty acid content, suggesting microplastic contamination could reduce the nutritional quality of algae at the base of aquatic food webs.
Tracing the fate of microplastic carbon in the aquatic food web by compound-specific isotope analysis
Researchers used compound-specific stable isotope analysis with fully labelled carbon-polyethylene microplastics to trace the fate of microplastic carbon through aquatic food webs, demonstrating that microbial activity is required for breakdown and assimilation of microplastic carbon.
Microplastic exposure across trophic levels: effects on the host–microbiota of freshwater organisms
Researchers examined how microplastic exposure across trophic levels affects the gut microbiota of freshwater organisms, finding that microplastics alter microbial community composition and that effects can transfer through food web interactions.
Effects of a microplastic mixture differ across trophic levels and taxa in a freshwater food web: In situ mesocosm experiment
Researchers conducted the first in situ mesocosm experiment testing the effects of a microplastic mixture on a freshwater lake food web, spanning multiple trophic levels. The study found that microplastic effects varied across different organisms and trophic levels, providing important community-level evidence that laboratory findings may not fully predict how microplastics impact real aquatic ecosystems.
Ecological stoichiometric and stable isotopic responses to microplastics are modified by food conditions in koi carp
The combined effects of microplastic ingestion and food restriction on ecological stoichiometry and stable isotope ratios were examined in aquatic animals. Microplastic effects on carbon and nitrogen assimilation interacted with food availability, suggesting that nutritional stress modifies how organisms respond to microplastic contamination.
Decomposition rate and biochemical fate of carbon from natural polymers and microplastics in boreal lakes
Researchers investigated the microbial decomposition rates and biochemical fate of several natural polymers (lignin, cellulose, hemicellulose) and microplastics as carbon sources in boreal freshwater lakes, finding that natural recalcitrant polymers and synthetic microplastics differ substantially in their rates of microbial mineralisation and incorporation into aquatic food webs.
Effects of microplastic particles on carbon source metabolism and bacterial community in freshwater lake sediments
A microcosm experiment tested how four common plastic types affect carbon metabolism and bacterial communities in freshwater lake sediments, finding that microplastics disrupted microbial carbon cycling and altered community composition.
Lipid mass and free fatty-acid composition of Calanus hyperboreus (CV) exposed to pristine and biofouled microplastics during shipboard incubation experiments (southeastern Greenland, summer 2024)
Researchers measured lipid mass and fatty-acid composition in Arctic copepods exposed to pristine and biofouled nylon-6 microplastics during shipboard experiments off southeastern Greenland. The dataset provides insights into how microplastic exposure under varying food availability and starvation conditions affects the fat reserves and nutritional physiology of a key Arctic zooplankton species.
Effects of microplastics on trophic parameters, abundance and metabolic activities of seawater and fish gut bacteria in mesocosm conditions
Mesocosm experiments showed that microplastics altered bacterial community structure and metabolic activity in both seawater and fish guts, suggesting that plastic pollution can disrupt microbial ecosystems in the marine environment. The findings raise concerns about how microplastic-driven microbiome changes could affect fish health and broader ecosystem functioning.
Chronic Exposure of Adult Zebrafish to Polyethylene and Polyester-based Microplastics: Metabolomic and Gut Microbiome Alterations Reflecting Dysbiosis and Resilience
Researchers exposed adult zebrafish to polyethylene and polyester microplastics at environmentally relevant concentrations and found significant disruptions to metabolic pathways and gut microbiome composition. Polyethylene primarily affected cell membrane compounds and inflammation-related metabolites, while polyester altered lipid metabolism and gut bacterial interactions. The study reveals that chronic microplastic exposure can cause subtle but meaningful shifts in fish metabolism and gut health, even at low concentrations.
Effect of alternative natural diet on microplastic ingestion, functional responses and trophic transfer in a tri-trophic coastal pelagic food web
Researchers studied how microplastics move through a three-level marine food chain, from zooplankton prey to planktivorous fish, and how the availability of natural food affects microplastic ingestion. When natural food was scarce, organisms consumed more microplastics, and the particles transferred efficiently up the food chain. This study demonstrates that microplastics in the ocean can accumulate through the food web and reach fish species that humans commonly eat.
Plastics in our water: Fish microbiomes at risk?
This review examined how microplastics and leached plasticizers affect the gut microbiomes of freshwater and marine fish, summarizing evidence for dysbiosis and reduced microbial diversity and discussing potential consequences for fish immunity, metabolism, and environmental fitness.
Nanoplastics reshape lipid metabolism in marine microalgae with potential ecological consequence
Researchers exposed a marine microalga important to ocean ecosystems to nanoplastics and found significant disruptions to its lipid metabolism, reducing both biomass and lipid production. The nanoplastics altered the types of fats the algae produced, potentially affecting the nutritional value of these organisms for the marine food web. The findings suggest that nanoplastic pollution could have cascading ecological consequences by disrupting carbon cycling at the base of the food chain.
Aquatic Plant Mediates Microplastic Bioavailability in Herbivorous Freshwater Fish
Researchers found that aquatic plants mediate microplastic bioavailability to herbivorous freshwater fish, detecting microplastics in 82% of Nile tilapia and Redbelly tilapia sampled from an urban lake in Kumamoto, Japan, and linking ingestion pathways to plant consumption.
Microbial Perspective: Regulatory Mechanisms of Interactions Between Microplastics and Dissolved Organic Matter on Greenhouse Gas Emissions in Aquatic Ecosystems
This is a duplicate data deposit for the same study on microplastic and dissolved organic matter interactions affecting greenhouse gas emissions in aquatic ecosystems. The research addresses how microbial communities mediate these effects, with implications for understanding microplastics' role in aquatic carbon cycling and climate-relevant gas production.
The effect of microplastics pollution in microalgal biomass production: A biochemical study
Scientists exposed the marine microalga Phaeodactylum tricornutum to polystyrene microplastics and found that both short- and long-term exposure at environmentally relevant concentrations disrupted biochemical composition including proteins, carbohydrates, and lipids.
Effect of Microplastics on Aquatic Food Chain and Food Web Altering Phytoplankton Community Structure
This review examines how microplastics affect phytoplankton community structure and how these effects propagate through aquatic food chains and food webs, with implications for nutrient cycling and ecosystem services.
Comparative assessment of MP effects on pigment composition and lipid profiles in three marine microalgae
Researchers exposed three marine microalgae species to polyethylene and polypropylene microplastics and found that the particles altered pigment composition and lipid profiles in species-specific ways. Microplastic exposure generally reduced photosynthetic pigments and shifted fatty acid profiles, with effects varying depending on the polymer type and concentration ratio. The study suggests that microplastic pollution could disrupt the biochemistry of ecologically and commercially important microalgae at the base of marine food webs.
Microplastics as carbon-nutrient sources and shaper for microbial communities in stagnant water
Six types of microplastics were tested as carbon and nutrient sources for microbial communities in stagnant water over eight weeks, finding that certain polymers including polyurethane elevated assimilable organic carbon and selectively enriched plastic-degrading bacterial genera, demonstrating that microplastics can actively shape microbial community structure by serving as a substrate.