**Preface to "Ocean Noise: From Science to Management"**

This book is a collection of articles relevant to ocean noise and its management. Scientific and societal concern about the effects of underwater sound on marine ecosystems is growing. While iconic megafauna was of initial concern, more and more taxa are being included. Some countries have joined in multi-national initiatives to measure, monitor, and mitigate environmental impacts of ocean noise at large, trans-boundary spatial scales. Approaches to regulating ocean noise change as new scientific evidence becomes available, but may also differ by country.

Articles in this collection cover topics such as ocean soundscapes, sources of underwater sound, anthropogenic sound, sounds made by marine fauna, animal sensitivity to sound, the potential effects of sound on marine fauna, sound propagation under water, sound modelling, noise management, and noise impact mitigation.

The idea for this book was born when we had to cancel the OCEANOISE conference two years in a row, due to Covid. The OCEANOISE conference series has provided a platform for the exchange of scientific results, management approaches, research needs, stakeholder concerns, etc. Attendees have represented various sectors, including academia, offshore industry, defence, NGOs, consultants and government regulators.

> **Michel Andr´e and Christine Erbe** *Editors*
