Abstract
We exposed individuals of the sentinel mangrove crab Minuca rapax to microplastics (MP; 53–63 μm polyethylene spheres) in a long-term experiment (56 days), and assessed MP effects on growth, survival, tissue accumulation, food intake and reduction of body burden through feces and molting. MP exposure did not affect growth and survival. The hepatopancreas accumulated more MP than the gills and muscle. Most of the ingested MP particles were released in the feces and molts, indicating a rapid passage through the digestive tract. MP impaired food intake of M. rapax, with unknown consequences to the local populations. These results provide insights on MP translocation mechanisms, its elimination and toxicity associated with MP.
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