Showing papers by "Ika Paul-Pont published in 2022"
TL;DR: In this article , a 5 months spatio-temporal survey of the plastisphere in an oyster farming area in the Bay of Brest (France) was performed using 16 S rRNA metabarcoding and compared to free living and attached bacterial members of seawater.
4 citations
TL;DR: In this article , a scientific view on the current debate of the place of biodegradable plastics as part of the solution to deal with the growing plastic pollution in the world's soil, aquatic, and marine compartments is presented.
4 citations
TL;DR: In this article , the chemical and toxicological profiles of two types of polypropylene (PP) and polylactic acid (PLA) food packaging were investigated, using in vitro bioassays and target gas chromatography mass spectrometry analyses.
3 citations
TL;DR: In this paper , a pyrolyzer/thermal desorption-gas chromatography coupled with a high-resolution mass spectrometer (Py/TD-GC-HRMS) was used to identify 49 organic plastic additives.
3 citations
TL;DR: In this article , a global coupled physical-biogeochemical model enriched with a 3D representation of microplastics was used to assess the global zooplankton exposure to MPs.
Abstract: Microplastics (MPs) are ubiquitous contaminants in the ocean. Zooplankton is thus widely exposed to MP ingestion. Here, we use a global coupled physical–biogeochemical model enriched with a 3D representation of MPs to assess the global zooplankton exposure to MPs. As expected, our results indicate that water MP concentration is the highest in the surface layers of subtropical gyres and coastal areas close to major MP sources, which is mostly due to floating MPs, while neutral MPs contaminate the mesopelagic zone. Additionally, we showed that floating MPs may be also transported to the mesopelagic waters during the seasonal deepening of the mixed layer depth. We then estimate zooplankton exposure to MPs based on water MP concentrations, plankton biomass, and zooplankton grazing rate. Two main drivers lead to high zooplankton exposure to MPs: 1) high water MP contamination and 2) intense grazing activity. Seasonally, re-stratification of surface waters may lead to MP vertical concentration coinciding with planktonic blooms, thus increasing contamination risk.
2 citations
TL;DR: In this paper , an established method based on mechanical cryogenic grinding and liquid sieving was used to produce fine-scale particle size distribution analyses to avoid underestimating the number of small micro-and nanoplastics (MNP) and to obtain an exact estimation of the fractions produced.
2 citations
TL;DR: In this paper , the authors reported that Australian outbreaks of oyster mortality syndrome (POMS) were associated with OsHV-1 distinct from the reference genotype, µVar and other microvariants from other countries.
2 citations
TL;DR: In this article , an ecophysiological system was used to do high-frequency monitoring of individual clearance, respiration rates, and absorption efficiency of juvenile oysters (8 months old) gradually exposed to four concentrations of tire leachates (equivalent masses: 0, 1, 10, and 100 μg tire mL−1).
1 citations