title: Body metal concentrations and glycogen reserves in earthworms (Dendrobaena octaedra) from contaminated and uncontaminated forest soil.
abstract: Stress originating from toxicants such as heavy metals can induce compensatory changes in the energy metabolism of organisms due to increased energy expenses associated with detoxification and excretion processes. These energy expenses may be reflected in the available energy reserves such as glycogen. In a field study the earthworm, Dendrobaena octaedra, was collected from polluted areas, and from unpolluted reference areas. If present in the environment, cadmium, lead and copper accumulated to high concentrations in D. octaedra. In contrast, other toxic metals such as aluminium, nickel and zinc appeared to be regulated and kept at low internal concentrations compared to soil concentrations. Lead, cadmium and copper accumulation did not correlate with glycogen reserves of individual worms. In contrast, aluminium, nickel and zinc were negatively correlated with glycogen reserves. These results suggest that coping with different metals in earthworms is associated with differential energy demands depending on the associated detoxification strategy.
authors.affiliation: National Environmental Research Institute, Aarhus University, Department of Terrestrial Ecology, Vejlsøvej 25, DK-8600 Silkeborg, Denmark. Electronic address: martin.holmstrup@dmu.dk.
authors.forename: Martin
authors.initials: M
authors.lastname: Holmstrup
authors.affiliation: National Environmental Research Institute, Aarhus University, Department of Terrestrial Ecology, Vejlsøvej 25, DK-8600 Silkeborg, Denmark.
authors.forename: Jesper G
authors.initials: JG
authors.lastname: Sørensen
authors.affiliation: Zoophysiology, Department of Biological Sciences, Aarhus University, Building 131, DK-8000 Aarhus C, Denmark.
authors.forename: Johannes
authors.initials: J
authors.lastname: Overgaard
authors.affiliation: Zoophysiology, Department of Biological Sciences, Aarhus University, Building 131, DK-8000 Aarhus C, Denmark.
authors.forename: Mark
authors.initials: M
authors.lastname: Bayley
authors.affiliation: National Environmental Research Institute, Aarhus University, Department of Terrestrial Ecology, Vejlsøvej 25, DK-8600 Silkeborg, Denmark; Zoophysiology, Department of Biological Sciences, Aarhus University, Building 131, DK-8000 Aarhus C, Denmark.
authors.forename: Anne-Mette
authors.initials: AM
authors.lastname: Bindesbøl
authors.affiliation: National Environmental Research Institute, Aarhus University, Department of Terrestrial Ecology, Vejlsøvej 25, DK-8600 Silkeborg, Denmark.
authors.forename: Stine
authors.initials: S
authors.lastname: Slotsbo
authors.affiliation: National Environmental Research Institute, Aarhus University, Department of Terrestrial Ecology, Vejlsøvej 25, DK-8600 Silkeborg, Denmark.
authors.forename: Karina V
authors.initials: KV
authors.lastname: Fisker
authors.affiliation: National Environmental Research Institute, Aarhus University, Department of Terrestrial Ecology, Vejlsøvej 25, DK-8600 Silkeborg, Denmark.
authors.forename: Kristine
authors.initials: K
authors.lastname: Maraldo
authors.affiliation: National Environmental Research Institute, Aarhus University, Department of Terrestrial Ecology, Vejlsøvej 25, DK-8600 Silkeborg, Denmark; Zoophysiology, Department of Biological Sciences, Aarhus University, Building 131, DK-8000 Aarhus C, Denmark.
authors.forename: Dorthe
authors.initials: D
authors.lastname: Waagner
authors.affiliation: Aarhus University, Faculty of Agricultural Sciences, Department of Genetics and Biotechnology, Research Centre Foulum, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark.
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Labouriau
authors.affiliation: National Environmental Research Institute, Aarhus University, Department of Arctic Environment, Frederiksborgvej 399, DK-4000 Roskilde, Denmark.
authors.forename: Gert
authors.initials: G
authors.lastname: Asmund
mesh_terms: D000818:Animals; D006003:Glycogen / Q000378:metabolism*; D019216:Metals, Heavy / Q000378:metabolism*; D009835:Oligochaeta / Q000187:drug effects* / Q000378:metabolism*; D012989:Soil Pollutants / Q000633:toxicity*
chemical_list: D019216:Metals, Heavy; D012989:Soil Pollutants; D006003:Glycogen