Marine Biodiversity and Environmental Data: An AI-Ready, Open Dataset from the long term (1995–2023) Basque Country Monitoring Network

This dataset provides 28 years of environmental monitoring data (1995-2023) from 51 stations in the estuaries and coastal areas of the Basque Country in the Bay of Biscay. Covering 130 variables across water, sediments, and biota, it includes detailed records of phytoplankton, macroalgae, macroinvertebrates, and fish. Compiled in collaboration with the Basque Water Agency (URA), the dataset supports analysis of environmental responses to human pressures and management interventions, identifying patterns of environmental quality improvement within a context of natural variability. Provided in a FAIR² Data Package, the dataset is structured to ensure Findability, Accessibility, Interoperability, Reusability, and Artificial Intelligence-readiness, facilitated by structured metadata and Application Programming Interface access. This resource is intended for researchers and policymakers examining anthropogenic and natural influences on aquatic ecosystems, contributing to sustainable management, conservation practices, and alignment with European directives, including the Water Framework Directive.