Antibiotics as a chemical stressor affecting an aquatic decomposer-detritivore system

Environmental Toxicology and Chemistry
Mirco BundschuhRalf Schulz

Abstract

Recent evidence indicates that a variety of antibiotic residues may affect the integrity of streams located downstream from wastewater treatment plants. Aquatic communities comprising bacterial and fungal decomposers and invertebrate detritivores (shredders) play an important role in the decomposition of allochthonous leaf litter, which acts as a primary energy source for small running waters. The aim of the present study was to assess whether an antibiotic mixture consisting of sulfamethoxazole, trimethoprim, erythromycin-H2O, roxithromycin, and clarithromycin has an effect on such a decomposer-detritivore system. Leaf discs were exposed to these antibiotics (total concentration of 2 or 200 microg/L) for approximately 20 d before offering these discs and corresponding control discs to an amphipod shredder, Gammarus fossarum, in a food choice experiment. Gammarus preferred the leaf discs conditioned in the presence of the antibiotic mixture at 200 microg/L over the control discs (pair-wise t test; p = 0.006). A similar tendency, while not significant, was observed for leaves conditioned with antibiotics at a concentration of 2 microg/L. The number of bacteria associated with leaves did not differ between treatments at either an...Continue Reading

Citations

Jun 25, 2013·Ecotoxicology and Environmental Safety·Mirco BundschuhRalf Schulz
Nov 19, 2014·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Tomas BrodinMicael Jonsson
Dec 5, 2015·Environmental Science and Pollution Research International·S R HughesL E Brown
Sep 27, 2015·Bulletin of Environmental Contamination and Toxicology·Mirco BundschuhRalf Schulz
Dec 23, 2011·Marine Environmental Research·Hanna OskarssonLinda Kumblad
Aug 17, 2010·Ecotoxicology and Environmental Safety·Jochen P ZubrodRalf Schulz
Sep 16, 2011·Environmental Toxicology and Chemistry·Jochen P ZubrodRalf Schulz
Jun 14, 2014·Environmental Toxicology and Chemistry·Lutz Ahrens, Mirco Bundschuh
Sep 2, 2015·Bulletin of Environmental Contamination and Toxicology·Alexander FecklerMirco Bundschuh
Dec 29, 2009·Environmental Pollution·A TelloT C Telfer
May 28, 2019·Environmental Science and Pollution Research International·Phuong Minh NguyenMuhammad Arslan
May 3, 2021·Environmental Science and Pollution Research International·Mirco BundschuhRalf Schulz
Dec 12, 2012·Environmental Science & Technology·Stephen R HughesLee E Brown

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