Environmental Stress Shaping Oxidative Responses in the Invasive Crayfish <i>Procambarus clarkii</i> from Lake Trasimeno.

ABSTRACT: Procambarus clarkii (red swamp crayfish) exhibits physiological plasticity that enables adaptation to variable freshwater conditions, such as those in Lake Trasimeno. This study examined whether fluctuations in hydrometric level and associated physicochemical parameters affect oxidative stress responses in the hepatopancreas and abdominal muscle of male and female individuals. Superoxide dismutase, catalase, glutathione peroxidase, and metallothionein reveal tissue, sex, and season-specific differences that indicate adaptive physiological adjustments. Temporal trends were evaluated, and multivariate analyses summarised environmental and metal gradients. Generalised Additive Models (GAMs) were used to explore relationships between oxidative responses and these gradients, with sex as

SUBMITTER: Caldaroni B 

PROVIDER: S-EPMC12944948 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature