Review on the distribution of microplastics in the oceans and its impacts: Need for modeling-based approach to investigate the transport and risk of microplastic pollution

Sheela, A. Merline; Manimekalai, B.; Dhinagaran, G.

doi:10.4491/eer.2021.243

Cited by 15 publications

(5 citation statements)

References 177 publications

(174 reference statements)

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“…MPs are recognized as hazardous pollutants primarily due to their widespread presence and persistence in various habitats. The absorption of chemicals onto the plastic surface, resulting in a complex mixture of pollutants available to marine species, is facilitated by the high surface area to volume ratio of small particles and their non-polar surface (Sheela et al, 2021). The toxicity of MPs varies primarily depending on their size, as smaller particles can penetrate organisms more deeply.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Chronic Microplastic Exposure Towards the Growth, Biochemical Responses and Histological Changes of the Juvenile Sea Cucumber Holothuria Scabra

Shukhairi,

Mazlan,

Rahman

et al. 2024

Preprint

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Microplastics (MPs), are minuscule plastic particles less than 5 millimeters in size, originating from the degradation of larger plastic debris. They are found in various sources and posing a significant threat to marine ecosystems. Sea cucumber Holothuria scabra is a high value commercial species of sea cucumber. They are also crucial in maintaining a clean seabed and recycling nutrients in the ocean ecosystem. This research aimed to investigate the toxicity effects of microplastics on the well-being of juvenile sea cucumber H. scabra. Over 60 days treatment period, polymethylmethacrylate MPs were exposed to the juvenile sea cucumber diet at concentrations of 0.6 MPs/g, 1.2 MPs/g and 10 MPs/g to observe changes in their growth, biochemical responses, and histological alteration. The mean weight, weight gain percentage and specific growth rate exhibited significant differences (p < 0.05) with the control group displaying the highest SGR value of 1.22 ± 0.35%. Mortality was observed in treatment 2 and 3, respectively. Notably, a disruption in enzyme assays was also observed (p < 0.05). The findings of growth rates and biochemical responses were further supported by histological observation, uncovering injuries and loss of cellular components in respiratory trees and intestines. This study enhance our understanding of the toxicity mechanism associated with MPs in filter-feeding organisms.

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Section: Discussionmentioning

confidence: 99%

The Effect of Chronic Microplastic Exposure Towards the Growth, Biochemical Responses and Histological Changes of the Juvenile Sea Cucumber Holothuria Scabra

Shukhairi,

Mazlan,

Rahman

et al. 2024

Preprint

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“…Electron Microscopy can all be used to identify micro plastic suspensions [35,36] Table 3 Toxicological effect of plastic on fish species Other types of decay happen more slowly than light-induced oxidation [55]. All biological materials, including plastics, harm the marine environment when they are hydrolyzed, and bottom sediments degrade plastics more slowly than lightinduced oxidative degradation does.…”

Section: Micr Oplastic Pollution In Oceanmentioning

confidence: 99%

Effects of Microplastic Pollution on Marine Environment: a Mini Review

Riaz,

Parveen,

Tayyab

et al. 2023

JZS

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Global awareness of microplastic contamination and its effects on the environment has grown. Plastics are resistant to breakdown and penetrate aquatic environments and are ultimately easily accessible to a wide range of aquatic animals and ultimately transported along the food web. Microplastics in cells and tissues have long-term consequences for marine organisms. A major factor in the spread of microplastics to the environment is their high adsorption capacity on the water surface. Microplastics and persistent organic pollutants interact to make the pollutants even more dangerous to living things. Microplastic pollution and its impact on the ecological environment have attracted worldwide attention. To effectively control microplastic pollution, there is a need to understand how Microplastics affect the ecological environment. This review discusses the formation, transfer and distribution of Micro plastics and the current physical, chemical and biological impacts on the environment. It is crucial to prevent plastic additives' overuse and enact laws and regulations to control plastic waste on account of the current threats posed by Microplastics to marine life and human health. We can eliminate marine litter by establishing plastic recycling schemes in the future or by promoting plastic awareness programs through both social and informational media.

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“…The distribution of MPs is observed from the poles to the equator [56]. Plastics enter the environment primarily as a result of human activity [57,58]. The important sources of plastic pollution are agricultural mulching [59], sewage sludge disposal [60], wastewater treatment plants [61], informal landfills [62], and biowaste compost [63].…”

Section: Microplastic Pollution In Estuariesmentioning

confidence: 99%

Prevalence of microplastics, antibiotic resistant genes and microplastic associated biofilms in estuary - A review

Dhinagaran

2022

Environmental Engineering Research

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The estuarine ecosystem is under threat due to the addition of different anthropogenic pollutants. Among the various pollutants, microplastics(MPs), and antibiotics play a significant role in affecting estuarine organisms and human health by transport through the food chain. In the estuaries, microorganisms, including pathogens, colonise microplastics by the development of biofilms. Estuaries have long been home to MPs, served as novel hubs for the transmission of Antibiotic Resistance Genes (ARGs). As a result of their continual interactions with a variety of aquatic creatures, MP-associated bacterial communities will eventually present a transfer opportunity to organisms that consume MPs. To comprehend the presence of microplastics and ARGs in the estuaries, a thorough review is necessary. This review discusses the various sources of MPs and antibiotic pollution, as well as the transport of ARGs via biofilm formed on MPs. Furthermore, the factors affecting biofilm formation in estuaries are reviewed. In addition, the transport of ARGs by microbial populations within biofilm is discussed. The ARGs are transported into the food chain, which will be a threat to human health. Hence, the occurrence of antibiotic-resistant genes in fish is discussed.

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Review on the distribution of microplastics in the oceans and its impacts: Need for modeling-based approach to investigate the transport and risk of microplastic pollution

Cited by 15 publications

References 177 publications

The Effect of Chronic Microplastic Exposure Towards the Growth, Biochemical Responses and Histological Changes of the Juvenile Sea Cucumber Holothuria Scabra

The Effect of Chronic Microplastic Exposure Towards the Growth, Biochemical Responses and Histological Changes of the Juvenile Sea Cucumber Holothuria Scabra

Effects of Microplastic Pollution on Marine Environment: a Mini Review

Prevalence of microplastics, antibiotic resistant genes and microplastic associated biofilms in estuary - A review

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