A digital-twin strategy using robots for marine ecosystem monitoring

22 pages, 11 figures, 4 tables, 1 appendix.-- Data availability: Raw and processed data and metadata presented here is public, on-line and free following FAIR principles. - Physical data from Obsea sensors is available at https://data.obsea.es/erddap/tabledap/index.html?page=1&itemsPerPage=1000 - Raw images, labelled images and AI models are available here Baños Castelló, P., Prat Bayarri, O., Martínez Padró, E., Francescangeli, M., Aguzzi, J., & del Rio, J. (2025). Labelled Images at OBSEA for Object Detection Algorithms [Data set]. Zenodo. https://doi.org/10.5281/zenodo.14888328 Martínez Padró, E., Prat i Bayarri, O., Baños Castelló, P., Francescangeli, M., Toma, D. M., Nogueras-Cervera, M., Artero-Delgado, C., Carandell Widmer, M., Cadena Muñoz, F. J., Bghiel Bensalah, I., Batet Xaus, G., Aguzzi, J., & del Rio, J. (2025). AI-based fish detections at OBSEA Underwater Observatory [Data set]. Zenodo. https://doi.org/10.5281/zenodo.14916451 Baños Castelló, P., Prat I Bayarri, O., Martínez Padró, E., Francescangeli, M., & del Rio, J. (2025). Underwater images from OBSEA fish detection training dataset (YOLO) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.14888440. Pol, B., Oriol, P., Martínez Padró, E., & del Rio, J. (2025). OBSEA fish detector AI model (YOLO). Zenodo. https://doi.org/10.5281/zenodo.14910365 - Abyssal NE Pacific Seafloor Megafauna Dataset is available at: Erik Simon-Lledó, Amon, D. J., Bribiesca-Contreras, G., Daphne Cuvelier, Jennifer M. Durden, Sofia P. Ramalho, Katja Uhlenkott, Pedro Martinez Arbizu, Noëlie Benoist, Jonathan Copley, Thomas G. Dahlgren, Adrian G. Glover, Bethany Fleming, Tammy Horton, Se-Jong Ju, Alejandra Mejia-Saenz, Kirsty McQuaid, Ellen Pape, Chailinn Park, … Daniel O. B. Jones. (2023). Abyssal NE Pacific Seafloor Megafauna Dataset (Versión 1) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7982462 - Source code of the GUI visualization tool is available at https://github.com/BlueNetCat/OBSEA