caa a22 4500 606227415 CHVBK 20210128101158.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s10641-014-0328-6 doi (NATIONALLICENCE)springer-10.1007/s10641-014-0328-6 Fish fins and scales as non-lethally sampled tissues for stable isotope analysis in five fish species of north - eastern Spain [Elektronische Daten] [Oriol Cano-Rocabayera, Alberto Maceda-Veiga, Adolfo de Sostoa] White muscle has been traditionally used in determining δ 13C and δ 15N signatures in fish but ethics and the current conservation status of many species mean the application of non-lethal sampling procedures is mandatory. In this study we test whether fins and scales can be used as non-lethal alternatives of muscle tissue for stable isotope analysis by comparing their δ 13C and δ 15N signatures, in two native (Barbus haasi, Squalius laietanus) and three introduced fish species (Rutilus rutilus, Lepomis gibbosus and Alburnus alburnus), collected in rivers from north-eastern Spain. Our results showed fins and scales were generally enriched in 13C and depleted in 15 N compared to muscle, and that both tissues were generally a moderate predictor of the isotopic composition of muscle for most species with the exception of Ebro chub (R 2 = 0.59-0.97). This study highlights the importance of determining the isotopic relationship between lethal and non-lethally sampled tissues before making straightforward equivalences, and also pinpoints the need for a more comprehensive understanding of how isotopic discrimination occurs in fins, scales and muscle tissues. Springer Science+Business Media Dordrecht, 2014 δ 13C nationallicence δ 15N nationallicence fish nationallicence muscle nationallicence non-lethal sampling nationallicence correction factors nationallicence Cano-Rocabayera Oriol Department of Animal Biology & Biodiversity Research Institute (IRBio), Faculty of Biology, University of Barcelona, E-08028, Barcelona, Spain aut Maceda-Veiga Alberto Department of Animal Biology & Biodiversity Research Institute (IRBio), Faculty of Biology, University of Barcelona, E-08028, Barcelona, Spain aut de Sostoa Adolfo Department of Animal Biology & Biodiversity Research Institute (IRBio), Faculty of Biology, University of Barcelona, E-08028, Barcelona, Spain aut Environmental Biology of Fishes Springer Netherlands 98/3(2015-03-01), 925-932 0378-1909 98:3<925 2015 98 10641 https://doi.org/10.1007/s10641-014-0328-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-014-0328-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cano-Rocabayera Oriol Department of Animal Biology & Biodiversity Research Institute (IRBio), Faculty of Biology, University of Barcelona, E-08028, Barcelona, Spain aut NATIONALLICENCE 700 1- Maceda-Veiga Alberto Department of Animal Biology & Biodiversity Research Institute (IRBio), Faculty of Biology, University of Barcelona, E-08028, Barcelona, Spain aut NATIONALLICENCE 700 1- de Sostoa Adolfo Department of Animal Biology & Biodiversity Research Institute (IRBio), Faculty of Biology, University of Barcelona, E-08028, Barcelona, Spain aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Springer Netherlands 98/3(2015-03-01), 925-932 0378-1909 98:3<925 2015 98 10641