Accumulation of microplastics in tadpoles from different functional zones in Hangzhou Great Bay Area, China: Relation to growth stage and feeding habits

Hu, Lingling; Fu, Juyang; Zheng, Pingjia; Dai, Mengzheng; Zeng, Guoxun; Pan, Xiangliang

doi:10.1016/j.jhazmat.2021.127665

Cited by 18 publications

(4 citation statements)

References 54 publications

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“…In our study, among the synthetic polymers that we identified, the most common were polyethylene, polypropylene, and poly(ethylene:propylene:diene). While the former two are well-documented pollutants of freshwater ecosystems that have also been previously detected in tadpoles 17 , 18 , 40 , the occurrence of poly(ethylene:propylene:diene) was notable. This compound constituted 22% of our synthetic polymer identifications, yet, as far as we are aware, it has not been documented in amphibians.…”

Section: Discussionmentioning

confidence: 81%

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Variation in microplastic characteristics among amphibian larvae: a comparative study across different species and the influence of human activity

Szkudlarek,

Najbar,

Jankowiak

2024

Sci Rep

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Microplastic pollution is a significant global environmental issue, and impacts span from individual organisms to the entire ecosystems. This study investigated the properties of microplastics in amphibian larvae, shedding light on their environmental interactions and potential ecological consequences. We examined microplastics extracted from amphibian larvae of 10 taxa, sampled from sites experiencing different levels of human impact. Our findings revealed a predominance of blue microplastics and fibres, each comprising 53% of the total microplastics in amphibian larvae. Microplastic fibres were also notably longer than other morphological types of microplastics. Furthermore, we observed variations in the surface area of microplastics among different amphibian families. An interesting observation from our research is the apparent positive relationship between the size of amphibian larvae and the length of granular and flake-shaped microplastics. Conversely, we observed a negative relationship between the length of these microplastics and human environmental impact. These insights significantly contribute to the understanding of microplastic pollution in freshwater environments, highlighting its complexities beyond marine ecosystems. Our research emphasises the intricate relationships between microplastics and freshwater organisms, underscoring the need for comprehensive strategies to mitigate microplastic pollution.

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Section: Discussionmentioning

confidence: 81%

“…We found differences in length between different morphological types of microplastics, with a fibre being on average the longest. Hu et al 18 . reported the average length of microplastics to be directly proportional to the developmental stage of tadpoles.…”

Section: Discussionmentioning

confidence: 99%

Variation in microplastic characteristics among amphibian larvae: a comparative study across different species and the influence of human activity

Szkudlarek,

Najbar,

Jankowiak

2024

Sci Rep

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“…To extract potential microplastics from the sediments, we employed the methodology of Hu et al [ 41 ] with modifications. First, the frozen jars containing sediments were thawed by removing them from the freezer and allowing them to sit at room temperature for a day.…”

Section: Methodsmentioning

confidence: 99%

Similarity of Microplastic Characteristics between Amphibian Larvae and Their Aquatic Environment

Szkudlarek,

Najbar,

Jankowiak

2024

Animals

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Microplastics, pervasive environmental pollutants, are found across various ecosystems, including small inland water bodies. They are reported in different environmental media, yet little is known about the mutual relationships of microplastics’ properties across components of small inland water bodies. Here, having extracted and analyzed these particles from water, sediment, and amphibian larvae from 23 sites, we test within-site similarities regarding shape (morphological type), color, and chemical composition (polymer type). We also provide a brief characterization of the microplastics extracted from water and sediment regarding these parameters. We observed a statistically significant similarity of microplastics’ shapes and colors between those extracted from water and amphibian larvae. Such a similarity, though less pronounced, was also found between amphibian larvae and sediment. However, the chemical composition (polymer type) of the microplastics from water, sediment, and amphibian larvae did not exhibit any similarities beyond what would be expected by chance. The observed congruence in the colors and shapes of microplastics between amphibian larvae and their corresponding aquatic habitats underscores the profound interconnectedness among the constituents of freshwater ecosystems.

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“…Microbial biodegradation has been regarded as one of the main ways to effectively deal with plastic pollution [ 11 ]. It is a process in which microorganisms use carbon sources in the form of organic matter to metabolize, which can not only produce non-toxic by-products but also provide energy to microorganisms or transform them into other useful products [ 12 ]. Biodegradation may effectively reduce the harm of additives to plastics and achieve a better ecological environment [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Biological Degradation of Plastics and Microplastics: A Recent Perspective on Associated Mechanisms and Influencing Factors

Cai

Zhu

et al. 2023

Microorganisms

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Plastic and microplastic pollution has caused a great deal of ecological problems because of its persistence and potential adverse effects on human health. The degradation of plastics through biological processes is of great significance for ecological health, therefore, the feasibility of plastic degradation by microorganisms has attracted a lot of attention. This study comprises a preliminary discussion on the biodegradation mechanism and the advantages and roles of different bacterial enzymes, such as PET hydrolase and PCL-cutinase, in the degradation of different polymers, such as PET and PCL, respectively. With a particular focus on their modes of action and potential enzymatic mechanisms, this review sums up studies on the biological degradation of plastics and microplastics related to mechanisms and influencing factors, along with their enzymes in enhancing the degradation of synthetic plastics in the process. In addition, biodegradation of plastic is also affected by plastic additives and plasticizers. Plasticizers and additives in the composition of plastics can cause harmful impacts. To further improve the degradation efficiency of polymers, various pretreatments to improve the efficiency of biodegradation, which can cause a significant reduction in toxic plastic pollution, were also preliminarily discussed here. The existing research and data show a large number of microorganisms involved in plastic biodegradation, though their specific mechanisms have not been thoroughly explored yet. Therefore, there is a significant potential for employing various bacterial strains for efficient degradation of plastics to improve human health and safety.

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Accumulation of microplastics in tadpoles from different functional zones in Hangzhou Great Bay Area, China: Relation to growth stage and feeding habits

Cited by 18 publications

References 54 publications

Variation in microplastic characteristics among amphibian larvae: a comparative study across different species and the influence of human activity

Variation in microplastic characteristics among amphibian larvae: a comparative study across different species and the influence of human activity

Similarity of Microplastic Characteristics between Amphibian Larvae and Their Aquatic Environment

Biological Degradation of Plastics and Microplastics: A Recent Perspective on Associated Mechanisms and Influencing Factors

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