The metabolome of pink-footed goose: Heavy metals and lipid metabolism

• DOI: 10.1016/j.envres.2023.116043
• Publication Date: 2023-05-06T14:52:18Z
• Authors: Mette Jensen; Rikke Poulsen; Rikke Langebæk; Bjørn Munro Jenssen; Johanna Moe; Tomasz M. Ciesielski; Rune Dietz; Christian Sonne; Jesper Madsen; Martin Hansen
• Keywords: Metabolome

Wildlife is exposed to mixtures of environmental contaminants that affect health and population dynamics. Exposure toxic heavy metals originating from anthropogenic sources may exert metabolic effects at even low exposure concentrations. Here we investigated the relationships between metal changes in migratory bird pink-footed goose (Anser brachyrhynchus). We used blood pellet plasma samples 27 free-ranging geese study (Cd, Cr, Hg, Pb) relation metabolome. The results relate concentrations Cd (range: 0.218-1.09 ng/g), Cr 0.299-5.60 Hg 2.63-6.00 ng/g) signal areas fatty acids other lipids, while no correlations were identified for Pb level 21.0-64.2 exposure. Lipid negatively associated with positively (both p < 0.05). α-Linolenic acid 9-oxononanoic correlated 0.05) related α-linolenic metabolism pathway. Compared known thresholds aviary species, are below levels toxicity, which explain number metabolites significantly change. Nevertheless, still lipid reduce migrating birds' breeding success increase mortality an part population.