Chronic exposure to microplastic fibers causes aneurysms, erosion of surface layers and other serious damage to fish gills, and increases egg production in female fish, a sign that chemicals in the fibers may be acting as endocrine disruptors, a new study by U.S. and Chinese scientists finds.
source https://www.lifetechnology.com/blogs/life-technology-science-news/microplastic-fibers-linked-to-respiratory-reproductive-changes-in-fish