Draft 1 1 Drivers of diet patterns in a globally distributed freshwater fish species 2 3

1 1 Drivers of diet patterns in a globally distributed freshwater fish species 2 3 Javier Sánchez-Hernández1,2,3,*, Anders G. Finstad3,4, Jo Vegar Arnekleiv3, Gaute 4 Kjærstad3 and Per-Arne Amundsen2 5 6 1Departamento de Zooloxía, Xenética e Antropoloxía Física, Universidade de Santiago de 7 Compostela, Santiago de Compostela, España 8 2Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, 9 Norway 10 3Department of Natural History, NTNU University Museum, Trondheim, Norway 11 4Aquatic Ecology Department, Norwegian Institute for Nature Research (NINA), 12 Trondheim, Norway 13 14 Javier Sánchez-Hernández (javier.sanchez@usc.es) 15 Anders G. Finstad (anders.finstad@ntnu.no) 16 Jo Vegar Arnekleiv (jo.arnekleiv@ntnu.no) 17 Gaute Kjærstad (gaute.kjarstad@ntnu.no) 18 Per-Arne Amundsen (per-arne.amundsen@uit.no) 19 *Author to whom correspondence should be addressed. Tel.: +34 630 156 186; e-mail: 20 javier.sanchez@usc.es 21