1 This is an Accepted Manuscript of an article published by Taylor & Francis Group in Marine and Freshwater Behaviour and Physiology on 11 September 2018, available online: https://www.tandfonline.com/doi/abs/10.1080/10236244.2018.1517018?tab=permissions& scroll=top “Solo datasets”: Unexpected behavioral patterns uncovered by acoustic monitoring of single individuals Joffrey BAEYAERT a-b* , David ABECASIS a* , Pedro AFONSO b , Gonçalo GRAÇA b , Karim ERZINI a & Jorge FONTES b-c * Both authors contributed equally to this work. a CCMAR - Centro de Ciencias do Mar, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal b MARE – Marine and Environmental Sciences Centre, University of the Azores, Portugal c Okeanos Research Centre of the University of the Azores, Horta, Azores, Portugal davidbecas@gmail.com, pafonsopim@gmail.com, goncalograca@gmail.com, kerzini@ualg.pt, fontes04@gmail.com corresponding author: Joffrey BAEYAERT: jhbaeyaert@ualg.pt +33.6.78.75.39.87 Centro de Ciencias do Mar (CCMAR), Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal