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Updated: Dec 28, 2025
Implantation of a New Micro Acoustic Tag in Juvenile Pacific Lamprey and American Eel
Published on: March 16, 2019
A field evaluation of long-term effects of PIT tagging
Christian Skov1, Joan H Hansen1, Henrik Baktoft1
1DTU Aqua, National Institute of Aquatic Resources, Section for Inland Fisheries and Ecology, Silkeborg, Denmark.
Abstract:
Passive integrated transponder (PIT)-tagging is commonly used in behavioural studies of fish, although long-term evaluations of effects from tagging under natural conditions are scarce. We PIT-tagged common bream Abramis brama, European perch Perca fluviatilis, pike Esox lucius and roach Rutilus rutilus, released them in their lakes of origin and recaptured them after 103-3269 days. Overall, tagged fish did not differ in condition from non-tagged fish, except for small R. rutilus that had a lower length-specific body mass in one lake in 1 year. We conclude that PIT-tagging in general has negligible long-term effects on fish condition.
