Dear MARMAM community, My co-authors and I are pleased to share our recent publication, which was published in SoftwareX and is available open access at: https://doi.org/10.1016/j.softx.2025.102055. Dubus, G., M. Torterotot, J. Béesau, M. Dupont, A. Gros-Martial, M. Michel, E. Morin, P. Nguyen Hong Duc, P.-Y. Raumer, O. Adam, F. Samaran, and D. Cazau. 2025. APLOSE: A web-based annotation platform for underwater passive acoustic monitoring. SoftwareX. https://doi.org/10.1016/j.softx.2025.102055 Abstract: Emerging detection and classification algorithms based on deep learning models require large-scale and manageable manual annotations of ground truth data. To date, the challenge of creating large and accurate annotated datasets of underwater sounds has been a significant obstacle to the development of robust recognition algorithms. APLOSE (Annotation PLatform for Ocean Sound Explorers) is an open-source, web-based tool that facilitates collaborative annotation campaigns in underwater acoustics. The platform has been used to conduct research on inter-annotator variability, build training and testing datasets for detection algorithms, and perform bioacoustics analyses on noisy datasets. In the future, it will enable the creation of high-quality reference datasets to test and train new detection and classification algorithms. The team is available to discuss the platform further and explore potential collaborations or inquiries regarding its use and development. We hope that this work can contribute to the development of more efficient tools for underwater sound data annotation and acoustic monitoring. Best regards, Mathilde Michel Mathilde Michel Doctorante / PhD student Tel. : +332 21 09 58 89 ________________________________ ENSTA | Institut Polytechnique de Paris 2 rue François Verny 29806 Brest cedex 9 - France --- Lab-STICC - UMR CNRS 6285 www.labsticc.fr