Overview
- A University of Kentucky–led study published in Science of The Total Environment documents microplastic fragments inside wild Belgica antarctica larvae.
- Fieldwork during a 2023 cruise collected larvae from 20 sites across 13 islands on the western Antarctic Peninsula, with two fragments found in 40 specimens.
- Ten‑day lab exposures showed unchanged survival and basic metabolism at tested concentrations, yet higher microplastic levels reduced larval fat stores.
- Researchers used high‑resolution imaging and chemical fingerprinting capable of identifying particles around 4 micrometers to verify microplastics in gut contents.
- Scientists describe the finding as an early warning given the species’ long larval development and potential future stress from warming and drying, and they call for longer, multi‑stressor studies.