Review of microplastic occurrence and toxicological effects in marine environment: Experimental evidence of inflammation

Pirsaheb, Meghdad; Hossini, Hooshyar; Makhdoumi, Pouran

doi:10.1016/j.psep.2020.05.050

Cited by 189 publications

(68 citation statements)

References 113 publications

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“…Our analysis showed that among the experimental conditions analysed, the time of exposure to microplastics was relevant, suggesting that organisms exposed to microplastics for long periods were the most vulnerable. Among shapes, fibres and fragment plastic particles were reported as having a greater impact according to Pirsaheb et al (2020), who found that fibres and fragments with a rough surface (sharp edges) caused more physical damage than spherical microplastics. The analysis conducted on microplastic type suggested that there was no specific type of microplastic that affected organisms more than others.…”

Section: Discussionmentioning

confidence: 99%

“…Thus, to gain insight on the effects of any potential disturbance factor, such as microplastics on the functional traits of fishes, it is crucial to increase our understanding of how microplastics can impair basic functions (as expressed by organismal functional traits; Violle et al, 2007) of ecological functioning. Several perspective and opinion papers have tried to shed light on the effects of microplastic pollution on the biotic components of aquatic systems and attempted to summarise the accumulated knowledge (Al‐Thawadi, 2020; Pirsaheb et al, 2020). So far, however, efforts to synthesise available data through meta‐analytical quantitative approaches are limited (Foley et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Microplastics and the functional traits of fishes: A global meta‐analysis

Salerno

Berlino

Mangano

et al. 2021

Global Change Biology

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Over the years, concern about the effects of microplastics has grown. Here, we answered the main question "What are the impacts of microplastics on the functional traits of fish species?" through a meta-analysis. The general impact of microplastic exposure on the functional traits of fishes and specifically on eight variables, namely, behaviour, development, fecundity, feeding, growth, health, hatching and survival was

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microplastics and the functional traits of fishes: A global meta‐analysis

Salerno

Berlino

Mangano

et al. 2021

Global Change Biology

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“…Exposure to microplastics might induce gut microbiota dysbiosis and intestinal damage, alterations and inflammation within marine organisms (Choi et al., 2018; Jin et al., 2018). Consequently, macro‐ and microplastics ingested by biota ranging from marine invertebrates to apical vertebrates may be causing metabolism disorders in addition to gut obstructions (Pirsaheb et al., 2020). Therefore, preventive measures to minimize the release of these pollutants to the oceans and seas should be a priority for the conservation of global marine ecosystems.…”

Section: Discussionmentioning

confidence: 99%

Overview of global status of plastic presence in marine vertebrates

López-Martínez¹,

Morales‐Caselles

Kadar

et al. 2020

Global Change Biology

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The presence of plastic in the environment is generating impacts on all habitats and has become a major global problem in marine megafauna. Macroplastics can cause entanglement, ingestion and loss of suitable habitats. In addition to entanglement problems, there is evidence that plastics are entering the food web through ingestion by marine organisms, which could ultimately be affecting humans. Much of the available information on the impact of plastic in biota is scattered and disconnected due to the use of different methodologies. Here, we review the variety of approaches and protocols followed to assess macro‐ and microplastic ingestion in marine vertebrates such as sea turtles, cetaceans and fishes in order to offer a global overview of their current status. The analysis of 112 studies indicates the highest plastic ingestion in organisms collected in the Mediterranean and Northeast Indian Ocean with significant differences among plastic types ingested by different groups of animals, including differences in colour and the type of prevalent polymers. In sea turtles, the most prevalent types of plastics are white plastics (66.60%), fibres (54.54%) and LDPE polymer (39.09%); in cetaceans, white macro‐ and microplastics (38.31%), fibres (79.95%) and PA polymer (49.60%); and in fishes, transparent plastics (45.97%), fibres (66.71%) and polyester polymer (36.20%). Overall, clear fibre microplastics are likely the most predominant types ingested by marine megafauna around the globe.

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“…It might lead to decreasing strength and death by predation or starvation to contamination by external microbes from biofouling and missing nutritional opportunities (Boerger et al, 2010;Rotjan et al, 2019;Machovsky-Capuska et al, 2020;Santos et al, 2020). Thus, the ingestion of indigestible debris may block nutrient absorption and cause mechanical damage to the intestinal tract in fishes (Germanov et al, 2018), especially those with sharp instead of rounded edges (Pirsaheb et al, 2020). Yet, anthropogenic debris may sorb and accumulate contaminants and become highly toxic (Barnes et al, 2009;Cole et al, 2013;Setälä et al, 2014), acting as disruptors of the endocrine system through plastic-derived estrogen mimics released from aqueous systems into the environment (LaFleur and Schug, 2011).…”

Section: Discussionmentioning

confidence: 99%

Ecological Traits Influencing Anthropogenic Debris Ingestion by Herbivorous Reef Fishes

et al. 2021

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One of the most conspicuous marks of the Anthropocene worldwide is the ubiquitous pollution by long lifespan materials (e.g., plastic). In marine habitats, anthropogenic debris are observed from floating on the surface to deposited on the substrate or ingested by wildlife at different food web levels. However, the link between feeding strategy types and debris ingestion by reef fishes remains poorly explored. We analyzed the gut contents of three nominally herbivorous fishes along the Brazilian coast: the doctorfish Acanthurus chirurgus, the parrotfish, Sparisoma axillare, and the chub Kyphosus vaigiensis. Individual [i.e., total length (TL)] and species-level functional traits, as well sites with distinct environmental features (i.e., tourism activity intensity, fishing pressure, and distance from the coast), were tested as predictors of the concentration of debris found inside individual fish guts. Debris found were quantified, measured, and classified accordingly to color and shape. We found debris in 52.7% of individuals. Debris ranged from 0.10 to 11.75 mm, and the frequency of occurrence and ingestion rate (number of debris per individual) varied among species, being higher for the scraper species S. axillare (95.7% and 4.9 ± 1.2, respectively) and A. chirurgus (74.6% and 1.64 ± 0.34), than for the browser K. vaigiensis (55.8% and 0.83 ± 0.24). TL, scraping feeding mode, and the most impacted location were positively related to debris ingestion rate. Our work revealed a higher vulnerability of an ecologically important trophic group to debris ingestion and of an already threatened species according to Brazilian red list. Besides the increasing number of species contaminated by anthropogenic debris, its effect on fish biology and physiology remains poorly understood. Understanding these links would improve conservation planning as species contamination could act as a proxy for environmental pollution on marine habitats.

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Review of microplastic occurrence and toxicological effects in marine environment: Experimental evidence of inflammation

Cited by 189 publications

References 113 publications

Microplastics and the functional traits of fishes: A global meta‐analysis

Microplastics and the functional traits of fishes: A global meta‐analysis

Overview of global status of plastic presence in marine vertebrates

Ecological Traits Influencing Anthropogenic Debris Ingestion by Herbivorous Reef Fishes

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