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61,005 resultsShowing papers similar to The seaweed Chaetomorpha linum cultivated in an integrated multitrophic aquaculture system: A new tool for microplastic bioremediation?
ClearMicroplastic evidence and removal from the seaweed bioremediator Chaetomorpha linum
Researchers evaluated microplastic presence and removal from the seaweed Chaetomorpha linum collected in the Mar Piccolo of Taranto and transplanted into an integrated multi-trophic aquaculture system, using density-based extraction and spectroscopic identification to characterize trapped particles. The study demonstrated that macroalgae bioremediators can accumulate microplastics from their growth environment, raising considerations for their use in aquaculture-based pollution mitigation.
Exploring Seaweed Cultivation in the Marine Environment and Its Interaction with Microplastic
This review examines interactions between seaweed cultivation in marine environments and microplastic pollution, exploring how seaweed can both accumulate microplastics and potentially be used in bioremediation strategies to reduce plastic contamination in coastal waters.
Extracellular polymeric substances from Spirulina sp. for the bioremediation of fishing net–derived microplastics in seawater
Researchers tested whether extracellular polymeric substances (EPS) secreted by the microalga Spirulina could remove polyethylene microplastics derived from fishing nets from seawater. The biological substances from Spirulina showed measurable ability to bind and aggregate the plastic particles, suggesting a natural bioremediation approach for marine microplastic pollution. This is relevant because discarded fishing nets are a major and persistent source of microplastics in the ocean.
The Prevalence of Microplastics in Farmed Seaweed Kappaphycus Alvarezii in Panguil Bay, Philippines
Researchers investigated microplastic contamination in farmed seaweed from Panguil Bay, Philippines, and confirmed 1,298 microplastic particles across two farming sites. Fibers and filaments were the most common shapes, with rayon and polyester as the dominant polymer types, and washing seaweed before consumption reduced but did not eliminate microplastic content.
Microplastics Uptake by Four Filter Feeders
Researchers tested the microplastic bioremediation potential of four marine filter-feeding organisms, including mussels and sea squirts, from a mariculture facility. The organisms were assessed for their ability to capture and remove microplastic particles from the water column in laboratory conditions. The study suggests that certain filter feeders could serve as natural biofilters to help reduce microplastic concentrations in marine environments.
Trapping of microplastics and other anthropogenic particles in seagrass beds: Ubiquity across a vertical and horizontal sampling gradient
Researchers examined how seagrass beds trap microplastics and other anthropogenic particles by sampling along a vegetation cover gradient from dense beds to less vegetated patches. The study found that seagrass vegetation enhances the accumulation of plastic debris in both sediment and among plant structures. Evidence indicates that seagrass ecosystems act as significant sinks for microplastic pollution, with implications for the organisms that depend on these habitats.
Experimental Evaluation of Seaweeds as a Vector for Microplastics into Marine Food Webs
Laboratory experiments demonstrated that microplastics can adhere to the surface of seaweed and be ingested by the common periwinkle when it feeds on the seaweed. This previously overlooked pathway — plastic transfer via algal feeding — may explain how benthic grazers that don't feed directly in the water column are exposed to microplastic contamination.
Hydroponic System for Effective Microplastic Filtration in the Sea: A Revolutionary Low-Cost Method
Researchers designed and tested a low-cost hydroponic-style filtration system intended to remove microplastics from seawater in the Philippines, one of the world's largest sources of marine plastic pollution. Water samples from Brgy. Papaya Nasugbu, Batangas were collected, microplastics were isolated and identified using a hot needle method, and the filtration system was evaluated for effectiveness.
Long-term interactions between microplastics and floating macrophyte Lemna minor: The potential for phytoremediation of microplastics in the aquatic environment
Researchers studied whether the floating aquatic plant Lemna minor could be used to remove microplastics from water through a 12-week experiment. The plant tolerated high concentrations of polyethylene microplastics without significant health effects after an initial adjustment period, and the particles adhered readily to the plant biomass. The findings suggest that duckweed-based systems could offer a nature-based approach for capturing microplastics from contaminated waterways.
Microplastics Content of Seaweeds in the Mariculture Potential Zone at The Southwest of Coastal Bawean Island
Researchers investigated microplastic contamination in seaweeds from Bawean Island, Indonesia, finding that even sheltered coastal waters contained microplastics in red, green, and brown seaweed species collected from mariculture potential zones.
Phytoremediation: A promising approach to remove microplastics from the aquatic environment
This study investigated the interactions between aquatic macrophytes and microplastics as the basis for developing phytoremediation strategies, finding that certain macrophyte species can accumulate MPs from water and sediment and may be candidates for MP removal from contaminated aquatic environments.
Spatio-temporal features of microplastics pollution in macroalgae growing in an important mariculture area, China
Researchers investigated microplastic contamination in cultivated macroalgae from Haizhou Bay, a major mariculture area in China. They found that seaweed harvested during the culture period contained higher microplastic levels than during non-culture periods, with fibers making up over 90% of particles. The study suggests that aquaculture gear is a significant source of microplastic pollution, releasing an estimated 1,037 tons of plastic into the environment annually.
Eelgrass (Zostera marina) and its epiphytic bacteria facilitate the sinking of microplastics in the seawater
Researchers found that eelgrass (Zostera marina) meadows and their epiphytic bacteria facilitate the sinking and accumulation of microplastics in seabed sediments, identifying seagrass ecosystems as significant microplastic sinks in coastal marine environments.
Biomonitoring of microplastics, anthropogenic microfibres and glass retroreflective beads by marine macroalgae
Researchers explored the potential of marine macroalgae as biomonitors for microplastics, anthropogenic microfibers, and glass retroreflective beads in coastal environments. The study suggests that seaweed species could offer a more standardized and reliable method for tracking microscopic debris compared to conventional water and sediment sampling approaches.
Effective removal of microplastics by filamentous algae and its magnetic biochar: Performance and mechanism
Researchers found that filamentous algae and a magnetic biochar made from the algae can effectively remove microplastics from water, with the biochar absorbing over 215 milligrams of microplastics per gram. The algae naturally trap microplastics through entanglement and adhesion, while the magnetic biochar can be easily recovered from water using magnets. This dual approach could help address both algae bloom problems and microplastic contamination in urban water systems.
Exploring the potential of microalgae in removal of microplastics from the environment and scope of this entity as feedstock for biofuel production
This review explores the potential of microalgae to capture and remove microplastics from aquatic environments, examining the mechanisms by which algal cells adsorb or aggregate plastic particles and discussing the feasibility of algae-based remediation at scale.
Capturing marine microplastics with mussel power
Researchers scaled up the use of Mytilus edulis (blue mussel) cage systems to capture and sequester microplastics from coastal marine environments, testing 50 kg mussel cage systems with feces collection and pump-based sample retrieval at ecologically relevant locations. Building on laboratory results showing mussels could filter 200,000 microplastics per hour, the study assessed the feasibility of mussel-based biofiltering as a passive environmental remediation strategy.
Plastic pollution in brackish waters: Macroalgae as collectors of plastic debris
Researchers investigated how two bloom-forming macroalgae (Chaetomorpha aerea and Hypnea cornuta) in a Sicilian coastal lagoon trap plastic debris ranging from macroplastics to microplastics, finding both species act as natural collectors with different capture efficiencies.
Microplastic removal in aquatic systems using extracellular polymeric substances (EPS) of microalgae
Researchers tested whether extracellular polymeric substances produced by microalgae could remove microplastics from water. Among four microalgae strains tested under stress conditions, Spirulina produced the most polymeric substances and formed the largest aggregates with microplastic particles. The study suggests that microalgae-based bioremediation could offer a sustainable, low-cost approach to reducing microplastic contamination in water sources.
Removal of Nanoplastics from Copollutant Systems Using Seaweed Cellulose Nanofibers
Researchers developed biodegradable nanofibers derived from seaweed cellulose that can efficiently remove nanoplastics from contaminated water, even when other pollutants like heavy metals or dyes are present. Both positively and negatively charged versions of the nanofibers achieved high removal rates for polystyrene nanoplastics across a range of water conditions. The study presents an eco-friendly filtration material that could help address the growing challenge of nanoplastic contamination in drinking water sources.
Optimization of an analytical methodology to determine microplastic contamination in different seaweed groups (Phaeophyceae, Rhodophyta and Chlorophyta)
Seaweed growing in ocean waters can accumulate microplastics from its surrounding environment, making it a potential indicator species — but extracting microplastics from algae without destroying the plastic particles is technically difficult. This study optimized a two-step digestion process using cellulase enzymes followed by hydrogen peroxide for three species of seaweed, successfully recovering 8 of 12 tested polymer types with over 90% accuracy. The protocol gives researchers a reliable method for quantifying microplastics in seaweed, which matters both for environmental monitoring and for the growing seaweed food and supplement industry.
A low-impact nature-based solution for reducing aquatic microplastics from freshwater ecosystems
Researchers developed a nature-based solution using the submerged plant Myriophyllum aquaticum to capture and retain microplastics from freshwater ecosystems. Through optimization experiments, they achieved high retention efficiency with minimal environmental disruption. The study demonstrates that aquatic plants can serve as a low-impact, practical tool for reducing microplastic pollution in rivers and lakes.
Interplay of plastic pollution with algae and plants: hidden danger or a blessing?
Researchers tested the ability of three microalgae species to remove microplastics from water through bioadhesion, finding that all three species could adsorb particles onto their surfaces. Removal efficiency depended on particle size, surface charge, and algae cell morphology.
Nature-based solutions to the management of legacy plastic pollution: Filter-feeders as bioremediation tools for coastal microplastics
Researchers explored whether filter-feeding marine organisms like mussels and oysters could serve as natural tools for removing microplastic pollution from coastal waters. They reviewed evidence showing these animals can effectively capture and concentrate microplastics from the water column. The study proposes that strategically deploying filter-feeders could complement engineered solutions as a nature-based approach to managing legacy plastic pollution in the ocean.