Hydroacoustic Monitoring of Anguillid Eels: a preliminary study

Abstract

Anguillid eels are widely distributed from tropical to subtropical areas. As a catadromous fish, anguillid eels spawn in the sea, migrate to freshwater as juveniles, and grow up before migrating back to the sea to spawn. Anguillid eel resources are ecologically, environmentally, economically, and socially important. However, the information and data on eel fisheries are limited; thus, the actual status and trend of anguillid eel resources could not be determined.