Data from: Effects of UV-LED irradiation on decapod crustacean larval mortality, motility, and respiration: Implications for ballast water treatments and invasive species management.

This dataset contains experimental data on the effects of UV-C LED irradiation on larvae of the European green crab Carcinus maenas. Four ovigerous females were collected from the Gulf of Cadiz (Spain), and their larvae were exposed to four UV-C doses (0, 40, 120, and 200 mJ·cm⁻²). Data include mortality (alive/dead counts), immobility (motile/immobile counts), and oxygen consumption rates over 48 h. Immobility and mortality rates were corrected against control values to normalize temporal effects. Respiration assays were conducted with optical oxygen sensors, providing measurements at the replicate level per female and treatment. The dataset supports analyses of larval viability under ballast water treatment scenarios, including binomial Generalized Linear Mixed Models (GLMM) for mortality and immobility data, and Linear Mixed-Effects Models (LMM) for respiration rates. Dose–response data used for estimating ED50 and LD50 values at day 5 (T5) are also included. These data provide insights into the larval tolerance variability among females, the relationship between immobility and mortality, and the physiological stress responses of larvae under UV-C exposure.