2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/22/2018 | 11:15 AM - 11:30 AM | PHARMACEUTICALS IMPACT BIOGEOCHEMICAL PROCESSES AND ALGAL COMMUNITY COMPOSITION IN ARTIFICIAL STREAMS | 330 B
PHARMACEUTICALS IMPACT BIOGEOCHEMICAL PROCESSES AND ALGAL COMMUNITY COMPOSITION IN ARTIFICIAL STREAMS
Pharmaceuticals and Personal Care Products (PPCPs) are contaminants of concern in aquatic ecosystems and are detected in surface waters receiving wastewater. PPCPs pose a considerable risk to aquatic biota as they are biologically active by design, and have largely unknown effects on non-target organisms including aquatic microbes. Research indicates that select pharmaceuticals can inhibit functioning of aquatic organisms at low, environmentally relevant concentrations. However, the effects of PPCPs on whole-ecosystem structure and function are only now being investigated.
We conducted a 21d artificial stream experiment to examine the effects of 3 commonly detected PPCPs (fluoxetine, diphenhydramine and ciprofloxacin) on stream ecosystem function. We examine effects on biogeochemical processes, including denitrification, primary production and respiration. We also explore how PPCPs alter the community compositions of diatoms in algal assemblages. Our results suggest that PPCPs are capable of altering ecosystem processes and we highlight important risks of PPCPs posed to freshwater systems and aquatic biota.
- Biogeochemistry
- Biofilm
- Artificial Stream
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Presenters/Authors
Stephanie Robson
(), Monash University, stephanie.robson@monash.edu;
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Emma Rosi
(), Cary Institute of Ecosystem Studies, rosie@caryinstitute.org;
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Michael Grace
(), Monash University , michael.grace@monash.edu;
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