Microplastics and invasive crayfish: emerging interactions and ecological implications from three coexisting species in a subalpine lake.

ABSTRACT: Microplastics (MPs) and invasive species are two of the most pressing threats to freshwater ecosystems, yet their interactions remain underexplored. This study presents the first comparative analysis of MP uptake among three coexisting invasive crayfish species (Faxonius limosus, Pacifastacus leniusculus, and Procambarus clarkii) from Lake Maggiore, a large subalpine lake subjected to intense anthropogenic pressure. A total of 90 individuals were analyzed for biometric traits and MP occurrence in intestinal content, with species identification confirmed via molecular analysis. No significant interspecific differences or correlations with biometric traits were found, though F. limosus showed the highest average concentration. Most MPs were < 1 mm polyester or polyacrylate fibers, suggesting

SUBMITTER: Cesarini G 

PROVIDER: S-EPMC12480078 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature