A field evaluation of long-term effects of PIT tagging |
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| Authors: | Christian Skov Joan H Hansen Henrik Baktoft Christer Brönmark Jakob Brodersen Ben B Chapman Lars-Anders Hansson Kaj Hulthén P Anders Nilsson |
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| Institution: | 1. DTU Aqua, National Institute of Aquatic Resources, Section for Inland Fisheries and Ecology, Silkeborg, Denmark;2. Department of Biology – Aquatic Ecology, Ecology Building, Lund University, Lund, Sweden;3. Department of Fish Ecology and Evolution, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Center for Ecology, Evolution and Biogeochemistry, Lucerne, Switzerland;4. Evolution and Genomic Sciences Division, School of Biological Sciences, University of Manchester, Manchester, UK |
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| 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. |
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