Microplastic Pollution: Threats and Impacts on Global Marine Ecosystems

Yu, Ren-Shou; Singh, Sher

doi:10.3390/su151713252

Cited by 21 publications

(4 citation statements)

References 160 publications

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“…The pollution generated by marine plastic litter is deemed irreversible and widespread globally, posing threats to ocean health, wildlife, food safety, human health, coastal tourism, and climate regulation [81,82]. This concern arises from the persistence of plastics and their harmful impacts.…”

Section: Potential Impact Of Marine Macro-and Microplastic Littermentioning

confidence: 99%

An Overview of the Current Trends in Marine Plastic Litter Management for a Sustainable Development

Râpă,

Cârstea,

Șăulean

et al. 2024

Recycling

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This review summarizes recent data related to the management of marine plastic litter to promote sustainable development. It discusses the distribution and identification of marine plastic litter, assesses the potential socio-economic and environmental impacts of these pollutants, and explores their recovery strategies, from a circular economy perspective. The main findings indicate that the majority of marine plastic litter originates from land-based sources. Current technologies and approaches for valorizing marine plastic litter include mechanical and chemical recycling, blockchain technologies by providing traceability, verification, efficiency and transparency throughout the recycling process, and public awareness programs and education. The developed policies to prevent marine plastic litter emphasize regulations and initiatives focused toward reducing plastic use and improving plastic waste management. By adopting a holistic and sustainable approach, it is possible to mitigate the environmental impact of marine plastic debris while simultaneously creating economic opportunities.

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Section: Potential Impact Of Marine Macro-and Microplastic Littermentioning

confidence: 99%

An Overview of the Current Trends in Marine Plastic Litter Management for a Sustainable Development

Râpă,

Cârstea,

Șăulean

et al. 2024

Recycling

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“…PE and PS MPs have been reported that interfere with enzyme synthesis and even alter gene expression [34]. There are also some reports presented that MPs may have a growth-promoting effect on algae due to the strong environmental adaptability of some algae [35]. These previous works show that the toxic mechanism of MPs on algae is a complex process.…”

Section: Introductionmentioning

confidence: 99%

High Salinity Alters the Adsorption Behavior of Microplastics towards Typical Pollutants and the Phytotoxicity of Microplastics to Synechococcus

Liu,

Gu,

et al. 2024

Sustainability

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Microplastics (MPs) are ubiquitous in marine environments, and seawater desalination releases large amounts of concentrated saline water. However, little is known about how MPs alter their adsorption behavior towards other pollutants in high-salinity environments. Meanwhile, there is a lack of knowledge about the combined effect of MPs and high salinity on marine phytoplankton. In this work, the impact of high salinity on the adsorption behaviors of two types of MPs (polyethylene MPs (PE-MPs) and polyvinyl chloride MPs (PVC-MPs)) towards three typical water pollutants (Pb2+, 4-chlorophenol, and levofloxacin) was investigated, and the combined effect of MPs and high salinity on Synechococcus was evaluated. The adsorption of Pb2+ and levofloxacin by PE-MPs and PVC-MPs decreased at high salinity, and the adsorption of 4-chlorophenol by PE-MPs also decreased, however, the adsorption of 4-chlorophenol by PVC-MPs increased. The SOD, CAT activities and GSH content of Synechococcus exposed to MPs were increased by the increasing salinity. When the MPs concentration was low, the increase in salinity decreased the content of chlorophyll-a. Our results demonstrated that high salinity significantly changes the adsorption behavior of common pollutants onto MPs and alters the toxic effect of MPs on Synechococcus. This study provides important information necessary for environmental risk assessments with regard to the combined stress of MPs and high salinity, promoting the sustainable development of desalination industries.

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“…Marine ecosystems, currently providing a main source of livelihood for three billion people worldwide (“Ocean economy and developing countries - OECD,” 2023), are under extreme pressure due to a variety of stressors (Pandion et al, 2022), such as current temperature rise (Cheng et al, 2022), biodiversity loss through overexploitation (Ward et al, 2022; Worm et al, 2006), pollution (Datta, 2023; Yu and Singh, 2023) and increased nutrient loads (Howarth et al, 2021; Malone and Newton, 2020). In particular, coastal marine systems and their inhabitants are increasingly affected by climate change and anthropogenic pressures, such as elevated nutrient loads (Breitburg et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Decoding the Baltic Sea's Past and Present: A simple Molecular Index for Ecosystem Assessment

Schmidt,

Roman,

Andren

et al. 2024

Preprint

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Marginal sea ecosystems, such as the Baltic Sea, are severely affected by anthropogenic pressures, such as climate warming, pollution, and eutrophication, which increased in the course of the past century. Biodiversity monitoring data and assessment of environmental status in such systems have typically been carried out only for the past few decades, if at all, and knowledge on pre-impact stability and good ecological status is limited. An extension of monitoring time series can potentially be achieved through analyses of paleoecological records, e.g. for phytoplankton, which form the base of the food web and are highly susceptible to environmental changes. Within the phytoplankton community, dinoflagellates and diatoms play a significant role as primary producers, and their relative dominance in the spring bloom, calculated as Dia/Dino index, is used as an indicator for the environmental status of the Baltic Sea. To extend time series on the dominance patterns and include non-fossilized dinoflagellates, we here establish a simple droplet digital PCR (ddPCR) reaction on ancient DNA from sediment cores that decodes phytoplankton dynamics. We focus on two common spring bloom species, the diatom Skeletonema marinoi and the dinoflagellate Apocalathium malmogiense, for which we evaluate a DNA based dominance index. It performs very well in comparison to DNA metabarcoding and modern monitoring and can elucidate past species dominance across the past century in three basins of the Baltic and across millennia in two of these basins. For the past century, we see a dominance shift already starting before the mid-20th century in two of the Baltic Sea basins, thus substantially predating current monitoring programs. Shifts are only partly coeval among the cores and the index shows different degrees of stability. This pattern is confirmed across millennia, where a long-term stable relationship between the diatom and the dinoflagellate is observed in the Eastern Gotland Basin, while data from the Gulf of Finland bear testimony to a much more unstable relationship. This confirms that good ecological status based on the dominance pattern of diatoms and dinoflagellates must be established locally and exemplifies how sediment core DNA can be employed to extend monitoring data.

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Microplastic Pollution: Threats and Impacts on Global Marine Ecosystems

Cited by 21 publications

References 160 publications

An Overview of the Current Trends in Marine Plastic Litter Management for a Sustainable Development

An Overview of the Current Trends in Marine Plastic Litter Management for a Sustainable Development

High Salinity Alters the Adsorption Behavior of Microplastics towards Typical Pollutants and the Phytotoxicity of Microplastics to Synechococcus

Decoding the Baltic Sea's Past and Present: A simple Molecular Index for Ecosystem Assessment

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