3rd UF Water Institute Symposium Abstract

Submitter's Name Courtney Reijo
Session Name Posters - Nutrient dynamics and enrichment impacts in aquatic ecosystems 2
Category Nutrient dynamics and enrichment impacts in aquatic ecosystems
Poster Number 38
Author(s) Wes Henson,  Department of Agricultural and Biological Engineering, University of Florida (Presenting Author)
  Grant Weinkam,  Environmental Engineering Sciences, University of Florida
  Chris Pettit, College of Sociology, Criminology, and Law, University of Florida
  Joelle Laing, School of Natural Resources and Environment, University of Florida
  Courtney Reijo, UF School of Forest Resources and Conservation
  Characterization of Nutrient Kinetics in a Spring-Fed North Florida Stream
  Additional Author: Valerie A. Burkett, UF Environmental Engineering Sciences Management decisions often regulate nutrient loads in streams based on information from regional to basin-scale models which can be limited by sparse datasets. Research is needed to assess stream nutrient kinetics to better inform water managers of the assimilative capacity of streams and further assist in development of downstream protection values and total maximum daily loads (TMDLs). This study employs the Tracer Additions for Spiraling Curve Characterization (TASCC) method (Covino et al. 2010) to examine nutrient kinetics in a small spring-fed north Florida stream. Applied methodology investigates spatial and temporal variability in nutrient kinetics under various initial conditions associated with energy input fluctuations related to diurnal changes and the presence/absence of tree canopy coverage. The TASCC method provides an efficient way to fully characterize the stream reach nutrient uptake velocity and rate models through analysis of conservative (Cl) and reactive tracers (N, P). Overall, this study investigates the characterization of nutrient kinetics and provides a basis for further studies in a variety of stream systems.