Review of Attached Acoustic Behavior Recorders for Cetaceans

Abstract

After tens of millions of years of evolution, cetaceans have relied on advanced sonar systems for hunting, detection, communication, positioning, and underwater navigation. To explore the biological sonar mechanisms of cetaceans, investigate their vocal behavior is essential. A self-contained acoustic behavior recorder is an important observation tool. It incorporates multisource sensors to acquire acoustic signals, animal behavioral status, and environmental information. This study introduces the systematic design of an attached acoustic behavior recorder for cetaceans, describes the post-processing method for data, and further sorts out the development context of research and development, ecology, and other fields of application prospects, as well as the key prospects for future technological breakthroughs.

Keywords

• cetacean
• acoustic behavior recorder
• multi-source sensor