2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/20/2019 | 2:00 PM - 2:15 PM | NUTRIENTS (N, P, Fe) AND PHARMACEUTICALS (CAFFEINE, DIPHENHYDRAMINE) STRUCTURE THE CORE BACTERIAL COMMUNITY IN URBAN AND MONTANE STREAM BIOFILMS | 151 ABC
NUTRIENTS (N, P, Fe) AND PHARMACEUTICALS (CAFFEINE, DIPHENHYDRAMINE) STRUCTURE THE CORE BACTERIAL COMMUNITY IN URBAN AND MONTANE STREAM BIOFILMS
The core microbiome dramatically impacts freshwater stream biofilm formation, function and resilience to disturbance. Within biofilms, nutrient and pharmaceutical loading may impact structure and ultimately ecosystem function. To examine the effects of human activities, we evaluated bacterial community composition within biofilms growing on submerged nutrient (nitrogen, phosphorus, and iron) and pharmaceutical (caffeine and diphenhydramine) additions across montane and urban streams in three watersheds in northern Utah. The environmental conditions within urban streams acted as an environmental filter, reducing compositional differences among communities at urban sites. Nutrients and pharmaceuticals had subtle, yet functionally relevant impacts on the bacterial core. Nutrients enhanced dominance in core communities, increasing the relative abundance of Comamonadaceae (Betaproteobacteria) and Pseudomonadaceae (Gammaproteobacteria). Taxa dominance was potentially related to certain species rapidly exploiting excess nutrients. In contrast, pharmaceuticals fostered distinct and diverse communities, which included several contaminant-degrading taxa in the Sphingomonadaceae (Alphaproteobacteria) and Anaerolineaceae (Chloroflexi), suggesting the requirement of a more diverse community to degrade xenobiotics. Our results identify that anthropogenic chemical stressors may have unique ecosystem-level ramifications to stream environments.
- Urban
- Periphyton
- Water Quality
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
Elizabeth Ogata
(), Utah State University, bethogata@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Michelle Baker
(), Utah State University, michelle.baker@usu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Emma Rosi
(), Cary Institute of Ecosystem Studies, rosie@caryinstitute.org;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Trevor Smart
(), Brigham Young University, tsmart4@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Donald Long
(), Southern Utah University, theinquisitor008@yahoo.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Zachary Aanderud
(), Brigham Young University, zachary_aanderud@byu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -