Harmful Ostreopsis cf. ovata blooms could extend in time span with climate change in the Western Mediterranean Sea

The data and R script provided are related to a study that aimed at simulating the abundance of Ostreopsis cf. ovata in the Western Mediterranean basin, under current and future climate conditions. We obtained O. cf. ovata abundance time series as part of long-term monitoring programs. We then statistically correct physical and biogeochemical reanalysis of the Mediterranean Sea to match in situ environmental conditions to use them as predictors of O cf. ovata cell abundance. Present and future climate simulations are also statistically corrected to fit the distribution of reanalysis. After calibrating and testing our niche model, we used it to identify the main environmental factors that explain O. cf. ovata abundance patterns and, in particular, the occurrence of large blooms in some regions.