Development of a Small Robotic Fish With a Function to Tag Mackerel

Abstract

Aquatic ecosystems have changed significantly in recent years. Consequently, small robotic fish can be utilized to exterminate non-native and farmed fish that have contracted diseases. In this study, we have developed a robotic fish equipped with a spear-shooting mechanism to tag it. Experiments were conducted in which a robotic fish shot a spear underwater into a stationary mackerel. The specific characteristics of the spear required to penetrate a stationary mackerel while the robotic fish was swimming were determined through experiments.