Microplastics in fishes and their living environments surrounding a plastic production area

Li, Bowen; Su, Lei; Zhang, Haibo; Deng, Hua; Chen, Qiqing; Shi, Huahong

doi:10.1016/j.scitotenv.2020.138662

Cited by 84 publications

(42 citation statements)

References 47 publications

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“…The adsorption and uptake of MPs by aquatic plants is another understudied concentrating mechanism that has the potential TA B L E 1 Overview of studies accessible before the 15 th May 2020 investigating microplastic ingestion in at least one wild freshwater fish (including estuarine/temporarily freshwater fish) to increase the ingestion probability of associated MPs by herbivorous fish (Kalčíková, 2020). Nevertheless, debate remains over important questions such as whether fish are able to distinguish MPs from prey resources and to assess the suitability of MPs as a food source prior to ingestion, if fish learn to avoid or ingest MPs, whether ingestion is deliberate and under which conditions does MP ingestion increase (Huuskonen et al, 2020;Li, Su, et al, 2020;Peters & Bratton, 2016;Ramos et al, 2012;Ryan et al, 2019).…”

Section: Mp Ingestion By Freshwater Fishmentioning

confidence: 99%

Microplastics in freshwater fishes: Occurrence, impacts and future perspectives

et al. 2021

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Microplastics (MPs) are small, plastic particles of various shapes, sizes and polymers.Although well studied in marine systems, their roles and importance in freshwater environments remain uncertain. Nevertheless, the restricted ranges and variable traits of freshwater fishes result in their communities being important receptors and strong bioindicators of MP pollution. Here, the current knowledge on MPs in freshwater fishes is synthesized, along with the development of recommendations for future research and sample processing. MPs are commonly ingested and passively taken up by numerous freshwater fishes, with ingestion patterns often related to individual traits (e.g. body size, trophic level) and environmental factors (e.g. local urbanization, habitat features). Controlled MP exposure studies highlight various effects on fish physiology, biochemistry and behaviour that are often complex, unpredictable, species-specific and nonlinear in respect of dose-response relationships.Egestion is typically rapid and effective, although particles of a particular shape and/ or size may remain, or translocate across the intestinal wall to other organs via the blood. Regarding future studies, there is a need to understand the interactions of MP pollution with other anthropogenic stressors (e.g. warming, eutrophication), with a concomitant requirement to increase the complexity of studies to enable impact assessment at population, community and ecosystem levels, and to determine whether there are consequences for processes, such as parasite transmission, where MPs could vector parasites or increase infection susceptibility. This knowledge will determine the extent to which MP pollution can be considered a major anthropogenic stressor of freshwaters in this era of global environmental change.

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Section: Mp Ingestion By Freshwater Fishmentioning

confidence: 99%

Microplastics in freshwater fishes: Occurrence, impacts and future perspectives

et al. 2021

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“…Similarly, Ryan and colleagues have assessed the selectivity with which Alosa aestivalis juveniles ingest MPs, and they found that the fish's condition coefficient was not correlated with MPs ingestion [68]. A deeper investigation was done by Li and colleagues [120] that sampled fishes in the vicinity of a plastic production industry and performed an histological examination of the Hemiculter leucisculus sampled to calculate the organ index of fish liver, evaluating each reaction pattern separately. They found both increased organ index and reactivity of the inflammation and circulatory disturbances in the most polluted area, with values close to those found in laboratory trials, where fish were exposed to much higher concentrations.…”

Section: Effects Of Mps Ingestion In Wild Catchesmentioning

confidence: 99%

Do Freshwater Fish Eat Microplastics? A Review with A Focus on Effects on Fish Health and Predictive Traits of MPs Ingestion

Galafassi

Campanale

Massarelli

et al. 2021

Water

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Microplastics (MPs) have received increasing attention in the last decade and are now considered among the most concerning emerging pollutants in natural environments. Here, the current knowledge on microplastic ingestion by wild freshwater fish is reviewed with a focus on the identification of possible factors leading to the ingestion of MPs and the consequences on fish health. Within the literature, 257 species of freshwater fishes from 32 countries have been documented to ingest MPs. MPs ingestion was found to increase with rising level of urbanization, although a direct correlation with MPs concentration in the surrounding water has not been identified. MPs ingestion was detected in all the published articles, with MPs presence in more than 50% of the specimens analyzed in one study out of two. Together with the digestive tract, MPs were also found in the gills, and there is evidence that MPs can translocate to different tissues of the organism. Strong evidence, therefore, exists that MPs may represent a serious risk for ecosystems, and are a direct danger for human health. Moreover, toxicological effects have also been highlighted in wild catches, demonstrating the importance of this problem and suggesting the need for laboratory experiments more representative of the environmental situation.

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“…Roughly, the probability of finding MPs in stomachs is three times higher than that of finding it in livers (Collard et al, 2018). Furthermore, histological observations revealed changes in livers in MP-contaminated areas compared with those obtained from a control area (Li, Busquets, et al, 2020;Li, Su, et al, 2020). The presence of MPs impacts in wild biota liver supports the need for laboratory research aiming at determining the presence and mechanisms of MP translocation and impacts on biota.…”

Section: Fishmentioning

confidence: 92%

“…It is suggested that these studies be increased. If the liver histological alteration study is replicated (Li, Busquets, et al, 2020;Li, Su, et al, 2020)…”

Section: Impacts On Organismsmentioning

confidence: 99%

“…As recent available reviews on MPs focus on marine biota (Rezania et al, 2018), laboratory studies (Li, Busquets, et al, 2020;Li, Su, et al, 2020), or methodology (O'Connor et al, 2019), our main purpose is to focus on the information obtained from field observations on freshwater biota, providing an overview by taxa. We collect and discuss recent scientific literature reporting data from inland waters where organisms have been exposed to MPs, where by MP exposure we mean any process potentially affecting living organisms, for instance, their alimentary strategy and growth.…”

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confidence: 99%

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Freshwater wild biota exposure to microplastics: A global perspective

Cera

Scalici

2021

Ecology and Evolution

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Plastics are organic synthetic polymers that have registered steady growth since the beginning of their production in the 20th century. Indeed, global production exceeded 380×10 9 kg in 2019 (PlasticsEurope, 2020). Mismanaged plastic waste has become a growing global issue as it causes extensive soil and water contamination (Lacerda et al., 2019;Windsor et al., 2019). Plastics are a persistent pollutant, as they have a low rate of degradation: Their degradation rate is lower than their contamination rate, leading to an accumulation of mismanaged plastic waste in the environment. When plastics are exposed to environmental conditions, physical, chemical, and biological agents can break them into smaller particles by photo-oxidation, thermal, and mechanical degradation (Singh & Sharma, 2008).

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Microplastics in fishes and their living environments surrounding a plastic production area

Cited by 84 publications

References 47 publications

Microplastics in freshwater fishes: Occurrence, impacts and future perspectives

Microplastics in freshwater fishes: Occurrence, impacts and future perspectives

Do Freshwater Fish Eat Microplastics? A Review with A Focus on Effects on Fish Health and Predictive Traits of MPs Ingestion

Freshwater wild biota exposure to microplastics: A global perspective

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