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Effects of passive integrated transponder tags on short-term feeding patterns in European perch (Perca fluviatilis) |
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| Authors: | Anna Chrysafi Niels Jepsen Diego del Villar-Guerra Martin H. Larsen Christian Skov |
| Affiliation: | 1. Water & Development Research Group, Aalto University, Espoo, Finland;2. Section for Inland Fisheries and Ecology, DTU Aqua, National Institute of Aquatic Resources, Silkeborg, Denmark;3. Loughs Agency, Derry~Londonderry, UK;4. Section for Inland Fisheries and Ecology, DTU Aqua, National Institute of Aquatic Resources, Silkeborg, Denmark Danish Centre for Wild Salmon, Randers SØ, Denmark |
| Abstract: | We tested the feeding behaviour of small European perch (Perca fluviatilis) in a laboratory study during the first 24 h after handling and 23 mm passive integrated transponder (PIT) tag implantation. Feeding commenced almost immediately following tagging and overall feeding patterns were unaffected by tagging. However, untagged perch had more feeding events than PIT-tagged individuals. This discrepancy could be attributed to post-tagging effects or/and reduced room for food due to the presence of the tag in the body cavity. |
| Keywords: | evaluation PIT tag post tagging prey fish |