Monitoring aquatic metabolism in an oligotrophic, subtropical estuary

Poster Number: 
86
Presenter/Primary Author: 
Gregory Koch
Co-Authors: 
Peter A. Staehr
Co-Authors: 
Daniel L. Childers

Everglades restoration calls for an increase in water delivery to the major watersheds of Everglades National Park. The response to hydrologic restoration of the estuarine end-members of these watersheds are not entirely understood. In this project, we investigate how carbon fluxes in estuarine Taylor River are related to hydrology using existing seasonal and storm-mediated changes. Here we present daily estimates of whole-ecosystem, aquatic metabolism derived from high-frequency (10 minute) changes in water column dissolved oxygen. By measuring environmental variables at very fast increments we obtain data that are very sensitive to subtle environmental dynamics. This may be especially important in very low-biomass ecosystems where biotic signals may be limited in magnitude. We also investigate the relationship between metabolism rates and driving and supporting limnological variables in this P-limited, oligotrophic estuarine ecosystem.

Student Poster: 
Yes