Dear Colleagues, We are pleased to announce that a call for abstracts is now open on OCEANOISE2023 website (http://oceanoise.com). The format of the conference includes keynote communications and plenary sessions with invited speakers whose objective is to challenge current knowledge on ocean noise. The sessions are divided in 13 topics, all of which address marine mammal research and conservation, directly or indirectly. This call for abstracts, which will be open from 15 January to 15 March 2023 concerns the 5mn-talks that will be scheduled every day in the late afternoon. The presentations will address the same themes as during the chaired sessions and the authors will be asked to pick up one of them when submitting their abstract. Unlike the chaired sessions, the 5mn-talks will not be chaired nor a round table will be organised afterwards. Instead, a general discussion (with a glass of wine) will follow around the posters of the day (associated with the 5mn talks), where all participants will be invited to informally give their input or discuss with the speakers. Note that the posters will only be displayed on the day of the presentation to focus the attention on the “daily speakers”. Nevertheless, the Science Committee may choose to include your communication in the plenary session programme. On behalf of the OCEANOISE2023 Organising and Science Committees, we appreciate your participation and are looking forward to welcoming you to Vilanova i la Geltrú in May! With warm regards, *Michel André, Peter Sigray & Tom Akamatsu* *OCEANOISE2023 co-chairs* -- Steffen De Vreese, MVM, PhD Laboratori d'Aplicacions Bioacústiques (LAB) - Universitat Politécnica de Catalunya (Es)