FN Archimer Export Format PT J TI Feces DNA analyses track the rehabilitation of a free-ranging beluga whale BT AF Günther, Babett Jourdain, Eve Rubincam, Lindsay Karoliussen, Richard Cox, Sam L. Arnaud Haond, Sophie AS 1:1,6;2:3;3:3;4:3;5:4,5;6:2; FF 1:;2:;3:;4:;5:;6:PDG-RBE-MARBEC-LHM; C1 ISEM (Institut des Sciences de l′Evolution), Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France MARBEC (Marine Biodiversity Exploitation and Conservation), Univ Montpellier, CNRS, Ifremer, IRD, Sète, France Norwegian Orca Survey, Andenes, Norway MaREI Centre, Environmental Research Institute, University College Cork, Cork, Ireland School of Biological, Earth, and Environmental Sciences, University College Cork, Cork, Ireland MARBEC (Marine Biodiversity Exploitation and Conservation), Univ Montpellier, CNRS, Ifremer, IRD, Sète, France C2 CNRS, FRANCE IFREMER, FRANCE NORWEGIAN ORCA SURVEY, NORWAY UNIV COLL CORK (UCC), IRELAND UNIV COLL CORK (UCC), IRELAND CNRS, FRANCE SI SETE SE PDG-RBE-MARBEC-LHM UM MARBEC IN WOS Ifremer UMR WOS Cotutelle UMR DOAJ copubli-france copubli-europe IF 4.6 TC 2 UR https://archimer.ifremer.fr/doc/00766/87811/93357.pdf LA English DT Article AB Following the sudden appearance, and subsequent efforts to support the survival of a beluga whale (Delphinapterus leucas) speculated to have been previously trained off the coast of Norway, we investigate the animal’s ability to readapt to life in the wild. Dietary DNA (dDNA) analysis was used to assess diet throughout this rehabilitation process, and during a return to unassisted foraging and self-feeding. Metabarcoding of feces collected throughout this process, confirmed the diversification of the beluga whale’s diet to local prey. These findings are indicative of improved foraging behavior, and the ability of this individual to resume wild foraging following a period of dependency in managed care. New insight of digestion rates, and the time window during which prey detection through dDNA analysis is appropriate was also obtained. Beyond the case study presented here, we demonstrate the power of dDNA analysis as a non-intrusive tool to assess the diet of large mammals and track progress adapting to life in the wild following release from captivity and rehabilitation programs. PY 2022 PD APR SO Scientific Reports SN 2045-2322 PU Springer Science and Business Media LLC VL 12 IS 1 UT 000783915800013 DI 10.1038/s41598-022-09285-8 ID 87811 ER EF