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Linking effects of microplastics to ecological impacts in marine environments
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This review examines how laboratory-scale findings on microplastic toxicity can be connected to ecological-level impacts in marine environments. Researchers highlight that microplastics affect marine organisms through ingestion, chemical leaching, and by serving as vectors for pathogens and invasive species. The study emphasizes the need for more ecologically realistic experiments to bridge the gap between controlled laboratory studies and real-world environmental conditions.
Recently, efforts to determine the ecological impacts of microplastic pollutants have increased because of plastic's accelerated contamination of the environment. The tiny size, variable surface topography, thermal properties, bioavailability and biological toxicity of microplastics all offer opportunities for these pollutants to negatively impact the environment. Additionally, various inorganic and organic chemicals sorbed on these particles may pose a greater threat to organisms than the microplastics themselves. However, there is still a big knowledge gap in the assessment of various toxicological effects of microplastics in the environment. Ecological risk assessment of microplastics has become more challenging with the current data gaps. Thus, a current literature review and identification of the areas where research on ecology of microplastics can be extended is necessary. We have provided an overview of various aspects of microplastics by which they interact negatively or positively with marine organisms. We hypothesize that biogeochemical interactions are critical to fully understand the ecological impacts, movement, and fate of microplastics in oceans. As microplastics are now ubiquitous in marine environments and impossible to remove, we recommend that it's not too late to converge research on plastic alternatives. In addition, strict actions should be taken promptly to prevent plastics from entering the environment.
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This review summarized a decade of research on the environmental toxicology of marine microplastic pollution across different ocean organisms and trophic levels. Researchers found that microplastics can accumulate in marine life from phytoplankton to fish, causing molecular, metabolic, and physiological harm. The study emphasizes that understanding these toxic effects is essential for assessing the broader ecological risks of plastic pollution in ocean environments.
Toxicity of microplastics in the marine environment.
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This review chapter provides a broad and updated overview of microplastic ecotoxicology in marine environments, covering effects from the biochemical level through population and ecosystem scales. Evidence reviewed demonstrates that microplastics can act as physical hazards and chemical vectors affecting marine biodiversity across multiple trophic levels.
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This review draws on cross-disciplinary research to connect the toxic effects of microplastics on individual organisms to broader ecological consequences in aquatic environments. Researchers found that microplastics can disrupt nutrient cycling, alter metabolic processes, trigger immune responses, and threaten ecosystem composition. The study highlights how the ecological damage from microplastics depends on how their toxicity transfers and multiplies through aquatic food webs.
Ecotoxicological effects of microplastics on biota: a review
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This review examines the ecological impact of microplastics on organisms across different levels of the food chain, from plankton to fish. Researchers found that microplastic exposure triggers a range of harmful effects including oxidative stress, immune disruption, reproductive problems, and altered feeding behavior. The evidence suggests that microplastics pose a widespread toxicological threat to wildlife, though more research is needed to understand the long-term population-level consequences.
Studies of the effects of microplastics on aquatic organisms: What do we know and where should we focus our efforts in the future?
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This review critically evaluates published research on microplastic effects on aquatic organisms and identifies significant gaps between laboratory experiments and real-world conditions. Researchers found that most studies use polystyrene spheres at concentrations far higher than those found in the environment, while the most common microplastics in nature are fragments and fibers of other polymer types. The study calls for more environmentally realistic experimental designs to better understand the actual ecological risks of microplastic pollution.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.