Ingestion of microplastics by Hypanus guttatus stingrays in the Western Atlantic Ocean (Brazilian Amazon Coast)

Pegado, Tamyris; Brabo, Lucio; Schmid, Kurt; Sarti, Francesco; Gava, Thaís T.; Nunes, Jorge Luíz Silva; Chelazzi, David; Cincinelli, Alessandra; Giarrizzo, Tommaso

doi:10.1016/j.marpolbul.2020.111799

Cited by 46 publications

(6 citation statements)

References 42 publications

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“…Discarded plastics are degraded to a size of less than 5 mm, called microplastics, via weathering and ultraviolet rays [ 48 ]. Their small size allows microplastics to move easily to contaminate soil, lakes, rivers, and seas [ 49 , 50 , 51 , 52 , 53 , 54 ]. In particular, many reports indicate that marine life accumulates microplastics on gills during oxygen exchange or plastics are ingested when mistaken for food [ 17 ].…”

Section: Discussionmentioning

confidence: 99%

In Vivo Toxicity and Pharmacokinetics of Polytetrafluoroethylene Microplastics in ICR Mice

et al. 2022

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The increased use of plastics has led to severe environmental pollution, particularly by microplastics—plastic particles 5 mm or less in diameter. These particles are formed by environmental factors such as weathering and ultraviolet irradiation, thereby making environmental pollution worse. This environmental pollution intensifies human exposure to microplastics via food chains. Despite potential negative effects, few toxicity assessments on microplastics are available. In this study, two sizes of polytetrafluoroethylene (PTFE) microplastics, approximately 5 μm and 10–50 μm, were manufactured and used for single and four-week repeated toxicity and pharmacokinetic studies. Toxicological effects were comprehensively evaluated with clinical signs, body weight, food and water consumption, necropsy findings, and histopathological and clinical-pathological examinations. Blood collected at 15, 30 60, and 120 min after a single administration of microplastics were analyzed by Raman spectroscopy. In the toxicity evaluation of single and four-week repeated oral administration of PTFE microplastics, no toxic changes were observed. Therefore, the lethal dose 50 (LD50) and no-observed-adverse-effect-level (NOAEL) of PTFE microplastics in ICR mice were established as 2000 mg/kg or more. PTFE microplastics were not detected in blood, so pharmacokinetic parameters could not be calculated. This study provides new insight into the long-term toxicity and pharmacokinetics of PTFE microplastics.

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Section: Discussionmentioning

confidence: 99%

In Vivo Toxicity and Pharmacokinetics of Polytetrafluoroethylene Microplastics in ICR Mice

et al. 2022

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“…For each sample, along with the visible light and IR map, a spectrum of the plastic or cellulose polymer is also included and compared with the spectrum of the fiberglass background filter. We previously showed that this approach allows the identification of diagnostic bands of MPs and cellulose, which are well distinguished from the filter absorptions (Pegado et al, 2021).…”

Section: D Imaging Ftirmentioning

confidence: 99%

Ingestion of microplastics and textile cellulose particles by some meiofaunal taxa of an urban stream

Lorenzo

Cabigliera²,

Martellini

et al. 2023

Chemosphere

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“…In another study [ 31 ], the ingestion of microplastics (MPs) by Longnose stingrays in the Western Atlantic Ocean was investigated, and the authors found that 23 specimens of Hypanus guttatus from the Brazilian Amazon coast had microplastic particles in their stomach. Fibers were most abundant (82%), blue was the most frequent color (47%), and Polyethylene Terephthalate (PET) was the most frequent polymer recorded (35%).…”

Section: Comprehensive Overview Of Mp Impacts On Edible Marine and Fr...mentioning

confidence: 99%

“…Furthermore, it was ascertained that the cause for such oxidative damages was either plastics or MPs-associated chemical compounds. Neves et al [ 31 ] analyzed Portugal’s commercial fish samples (263 fish from 26 commercial species) and discovered MPs in 20% of the fish population from their GI system, of which 67% contained at least one plastic particle [ 36 ].…”

Section: Comprehensive Overview Of Mp Impacts On Edible Marine and Fr...mentioning

confidence: 99%

Overviewing the Ground Reality of Microplastic Effects on Seafoods, Including Fish, Shrimps and Crabs: Future Research Directions

Gopal

Sivanesan

Muthu

et al. 2022

Foods

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While plastics are already notorious for their accumulation in the environment, which poses environmental challenges, invisible microplastics (MPS) are an even greater challenge. This review focuses on consolidating the reports available on MP accumulation in edible marine and freshwater fishes, shrimps, and crabs. The reality as to whether MPs in these edible aquatic organisms are really a cause of high concern is questioned and discussed. While the entrails of aquatic organisms are reported to contain high levels of MPs, because these products are consumed after the removal of the entrails and gut area in the majority of cases, the MP threat is questionable. The existence of MPs in these aquatic sources is validated but their potency in harming humans, aquatic organisms, and other interlinked species is unassessed. To overcome the difficulty in tracing the movement of MPs in a bigger ecosystem, this review proposes laboratory-based pilot studies mimicking real-world conditions, which will help us to understand the kinetics of MPs in the food chain. The effects of MPs on human welfare and health are yet to be assessed, and this is another gap that needs attention.

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Ingestion of microplastics by Hypanus guttatus stingrays in the Western Atlantic Ocean (Brazilian Amazon Coast)

Cited by 46 publications

References 42 publications

In Vivo Toxicity and Pharmacokinetics of Polytetrafluoroethylene Microplastics in ICR Mice

In Vivo Toxicity and Pharmacokinetics of Polytetrafluoroethylene Microplastics in ICR Mice

Ingestion of microplastics and textile cellulose particles by some meiofaunal taxa of an urban stream

Overviewing the Ground Reality of Microplastic Effects on Seafoods, Including Fish, Shrimps and Crabs: Future Research Directions

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