Back to the wild: movements of a juvenile tiger shark released from a public aquarium.

Sharks are an important draw for aquaria, however, larger species can rarely be kept indefinitely. To date, there has been little work tracking shark movements post-release to the wild. We used high-resolution biologgers to monitor a sub-adult tiger shark's pre- and post-release fine-scale movements following two years of captivity in an aquarium. We also compared its movement to a wild shark tagged nearby. Despite the differences in movement between the two sharks, with vertical oscillations notably absent and greater levels of turning seen from the released shark, the captive shark survived the release. These biologgers improve insight into post-release movements of captive sharks. This article is protected by copyright. All rights reserved.