title: Identification of transport processes in bioirrigated muddy sediments by [18F]fluoride PET (Positron Emission Tomography).
abstract: In aquatic environments transport processes across the sediment-water interface are intensified by bioirrigating macrozoobenthos. Transport processes caused by Chironomus plumosus larvae dwelling in U-tubes were investigated by dynamic small animal Positron Emission Tomography (PET) with [18F]fluoride. Significant tracer transport from the burrows into the sediment was detected; penetration was deeper at the outlet branch of the burrow than at the inlet branch. Hence, advection plays a significant role in exchange between water in the burrows and muddy sediment.
authors.affiliation: Department of Ecohydrology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany. roskosch@igb-berlin.de
authors.forename: Andrea
authors.initials: A
authors.lastname: Roskosch
authors.forename: Jörg
authors.initials: J
authors.lastname: Lewandowski
authors.forename: Ralf
authors.initials: R
authors.lastname: Bergmann
authors.forename: Florian
authors.initials: F
authors.lastname: Wilke
authors.forename: Winfried
authors.initials: W
authors.lastname: Brenner
authors.forename: Ralph
authors.initials: R
authors.lastname: Buchert
mesh_terms: D000818:Animals; D002683:Chironomidae / Q000502:physiology*; D017753:Ecosystem; D005459:Fluorides; D008386:Marine Biology / Q000379:methods; D049268:Positron-Emission Tomography / Q000379:methods; D019275:Radiopharmaceuticals
chemical_list: D019275:Radiopharmaceuticals; D005459:Fluorides