Effect of Microplastic Amendment to Food on Diet Assimilation Efficiencies of PCBs by Fish

Grigorakis, Stefan; Drouillard, Kenneth G.

doi:10.1021/acs.est.8b02497

Cited by 47 publications

(24 citation statements)

References 42 publications

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“…This result shows that although MPs can act as vector of contamination, contaminant transfer is limited compared to other exposure routes. The same phenomenon has been observed in most studies comparing contaminant uptake (PCBs, BFRs, PFCs, PBDEs, PAHs, and organic contaminants) via MPs and other matrices (Browne et al, 2013;Grigorakis and Drouillard, 2018;Rainieri et al, 2018), although one study showed higher contaminant transfer in fish when exposed via MPs, compared to spiked food (Granby et al, 2018). Our results therefore confirm previous exposure and model studies, which concluded that MP vector effect could be negligible compared to natural pathways.…”

Section: Chlorpyrifos Uptake In Fish and Vector Effect Of Microplasticssupporting

confidence: 91%

Microplastic Vector Effects: Are Fish at Risk When Exposed via the Trophic Chain?

Bour

Sturve

Höjesjö

et al. 2020

Front. Environ. Sci.

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In aquatic organisms, trophic transfer is a relevant exposure route for microplastics (MPs). Despite their relevance, effect studies on fish exposed via trophic chains are currently very scarce. MPs are known to contain many chemicals that could be transferred to organisms and induce deleterious effects. However, there is currently no consensus on whether MPs represent a significant exposure pathway to chemicals in contaminated habitats. Here, we exposed three-spined sticklebacks (Gasterosteus aculeatus) to polyethylene MPs via prey ingestion, in a one-month experiment. MPs were either pristine or spiked with chlorpyrifos (CPF), and a CPF control was included to §compare vector effects of MPs and natural prey. Following exposure, we assessed AChE activity and fish behavior (feeding, locomotion, environment exploration and reaction to the introduction of a novel object). No effect was observed in fish exposed to pristine MPs. CPF accumulation was observed in fish exposed to CPF-spiked MPs (MP-CPF), confirming the vector potential of MPs. However, CPF accumulation was more important in fish exposed to CPF via prey. In fish exposed to MP-CPF, we observed significant AChE inhibition and hyperactivity, which could result in increased vulnerability to predation. CPF organ distribution differed between groups, suggesting that chemical exposure via MPs could alter organ distribution of chemicals. This can result in a change in the organs most at risk, likely increasing intestine exposure.

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Section: Chlorpyrifos Uptake In Fish and Vector Effect Of Microplasticssupporting

confidence: 91%

Microplastic Vector Effects: Are Fish at Risk When Exposed via the Trophic Chain?

Bour

Sturve

Höjesjö

et al. 2020

Front. Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…This result shows that although MPs can as vector of contamination, contaminant transfer is limited compared to other exposure routes. The same phenomenon has been observed in most studies comparing contaminant uptake (PCBs, BFRs, PFCs, PBDEs, PAHs and organic contaminants) via MPs and other matrices [32][33][34] , although one study showed higher contaminant transfer in fish when exposed via…”

Section: Chlorpyrifos Uptake In Fish and Vector Effect Of Microplasticssupporting

confidence: 77%

Microplastic vector effects: are fish at risk when exposed via the trophic chain?

Bour

Sturve

Höjesjö

et al. 2019

Preprint

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In aquatic organisms, trophic transfer is an important exposure route for microplastics (MPs).Despite their relevance, effect studies on fish exposed via trophic chains are currently very scarce.MPs are known to contain many chemicals that could be transferred to organisms and induce deleterious effects. However, there is currently no consensus on whether MPs represent a significant exposure pathway to chemicals in contaminated habitats. Here, we exposed threespined stickleback (Gasterosteus aculeatus) to polyethylene MPs via prey ingestion, in a longterm experiment. MPs were either pristine or spiked with chlorpyrifos (CPF), and a CPF control was included to compare vector effects of MPs and natural prey. No effect was observed in fish exposed to pristine MPs. CPF accumulation was observed in fish exposed to CPF-spiked MPs (MP-CPF), confirming the vector potential of MPs. However, CPF accumulation was more important in fish exposed to CPF via prey. In fish exposed to MP-CPF, we observed significant AChE inhibition and hyperactivity, which could result in increased vulnerability to predation. CPF organ distribution differed between groups, suggesting that chemical exposure via MPs could alter organ distribution of chemicals. This can result in a change in the organs most at risk, likely increasing intestine exposure.

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“…Nonetheless, the role of MPs as vectors of contaminants still presents contradictory interpretations [124,125]: while some ecotoxicological studies have determined that plastic can have a synergic effect with respect to pollutants (e.g., [120,126,127]), other studies have reported negligible changes in contaminant uptake in the presence of MPs (e.g., [128][129][130]).…”

Section: Interaction Of Mps With Micropollutantsmentioning

confidence: 99%

Microplastic Contamination in Freshwater Environments: A Review, Focusing on Interactions with Sediments and Benthic Organisms

et al. 2020

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Plastic is one of the most commonly produced and used materials in the world due to its outstanding features. However, the worldwide use of plastics and poor waste management have led to negative impacts on ecosystems. Plastic degradation in the environment leads to the generation of plastic particles with a size of <5 mm, which are defined as microplastics (MPs). These represent a global concern due to their wide dispersion in water environments and unclear potential ecotoxicological effects. Different studies have been performed with the aim of evaluating the presence and impacts of MPs in the marine environment. However, the presence of MPs in freshwater systems is still poorly investigated, making data retrieval a difficult task. The purpose of this review is to identify the main aspects concerning MPs pollution sources in lakes and rivers, with a focus on freshwater sediments as a site of accumulation and as the habitat of benthic organisms, which are key components of food webs and play a fundamental role in energy/contaminant transfer processes, but are still poorly considered. Through this review, the sources and fate of MPs in freshwater are analysed, ecotoxicological studies focused on sediments and benthic fauna are exposed, the most frequently used sampling and analysis strategies are reported, and future trends of MPs analysis in this field are proposed.

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Effect of Microplastic Amendment to Food on Diet Assimilation Efficiencies of PCBs by Fish

Cited by 47 publications

References 42 publications

Microplastic Vector Effects: Are Fish at Risk When Exposed via the Trophic Chain?

Microplastic Vector Effects: Are Fish at Risk When Exposed via the Trophic Chain?

Microplastic vector effects: are fish at risk when exposed via the trophic chain?

Microplastic Contamination in Freshwater Environments: A Review, Focusing on Interactions with Sediments and Benthic Organisms

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