Rapid egestion of microplastics in juvenile barramundi: No evidence of gut retention or tissue translocation.

Despite many reports of large microplastics being isolated from fish muscle, there are limited exposure studies documenting the transport of microplastics >10 μm from the gastrointestinal tract (GIT) to surrounding tissues. Moreover, egestion rates of microplastics are not commonly studied, especially for carnivorous fish. In this study, experimental data and a literature meta-analysis were combined to understand microplastic translocation to fish tissue and egestion rates.