This is the output of GBM (Gradient Boosting Model) analyses of Dinophysis acuminata presence and absence data carried out by Marine Institute and the CoCliME project. This output dataset shows prediction of probability of Dinophysis acuminata presence in present time (1997 - 2016) in South West Ireland. The analyses was performed in R 3.6.3, with the packages tidyverse for data handling and visualisation, and gbm for boosted regression analyses. The dataset used for analyses is available on MI data catalogue 'Harmful Algal Blooms (HABs) weekly maximum and environmental dataset 1997-2016 North East Atlantic Ocean'.