Particle shape does not affect ingestion and egestion of microplastics by the freshwater shrimp Neocaridina palmata.

ABSTRACT: The ingestion of microplastics (MPs) is well documented for various animals and spherical MPs (beads) in many studies. However, the retention time and egestion of MPs have been examined less, especially for irregular MPs (fragments) which are predominantly found in the environment. Furthermore, the accumulation of such particles in the gastrointestinal tract is likely to determine whether adverse effects are induced. To address this, we investigated if the ingestion and egestion of beads are different to those of fragments in the freshwater shrimp Neocaridina palmata. Therefore, organisms were exposed to 20-20,000 particles L^-1 of either polyethylene (PE) beads (41 μm and 87 μm) or polyvinyl chloride (PVC) fragments (<63 μm). Moreover, shrimps were exposed to 20,000 particles L<

SUBMITTER: Klein K 

PROVIDER: S-EPMC8589796 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature