Microplastic-fragmentation
Guides
Oniscus
woodlice
Oniscus is a genus of terrestrial isopods (woodlice) in the family Oniscidae. The genus comprises five species with restricted distributions: three species are endemic to northwestern Iberia (O. ancarensis, O. galicianus, O. lusitanicus), one to the Pyrenees (O. simonii), and one species, O. asellus, is widespread across Europe and has been introduced to the Americas. O. asellus has been studied for its ability to fragment weathered polystyrene plastic into microplastics in laboratory settings.