Thrust Areas Ecosystem Water Institute Classification Level
Water, Land Use and Ecosystems Water and Climate Water and Society Water Resources Sustainability Springs Wetlands Watersheds Aquifers Lakes Coastal Zone  Water Institute Classification 1  Water Institute Classification 2  Water Institute Classification 3  Water Institute Classification 4
     

Integrated Interpretation of Survey and Experimental Approaches for Determining Nutrient Thrsholds for Macroalgae in Florida Springs
Contract No:  63086
Goals and Objectives
 
Florida’s springs provide countless environmental, recreational, and cultural benefits. Over the years, people who live near springs and visit springs have seen their springs degrade, either by the loss of historical discharge or prolific algal growth and the decreased biological diversity that apparently stem from water quality and quantity problems. The degradation of water quality in the Floridan aquifer appears to be related to another change in many Florida springs. Spring openings (or vents) and their receiving waters are experiencing ecological imbalances, as evidenced by the profuse growth of algae and/or invasive aquatic vascular plants, such as hydrilla. Biological studies now document excessive algal growth at many major springs. In some of the more extreme examples, such as Silver Springs and Weeki Wachee Springs, algal mat accumulations are several feet thick. Most scientists agree that elevated nutrient levels in the water are at least partly to blame. Nitrogen is considered the main chemical indicator of nutrient enrichment of springs, and nitrate levels have climbed steadily in many of the springs that have been sampled over the decades. The nitrate found in ground water and spring water has been found by isotope analysis to be from inorganic sources such as synthetic fertilizer, or organic sources such as human wastewater or animal manure, or a combination of the two. An ongoing objective is to establish a nutrient threshold or index that correlates the water column concentrations of nutrients with biological effects.
 
 
Available Outputs

Title: Identification of nitrogen sources and transformations within karst springs using isotope tracers of nitrogen. Biochemistry (2012) 108:219-232.
Authors: Albertin, A., Sickman, J.O., Pinowska, A., R.J. Stevenson.

Title: PhD Dissertation: NUTRIENT DYNAMICS IN FLORIDA SPRINGS AND RELATIONSHIPS TO ALGAL BLOOMS
Authors: Albertin. A.R.

Title: Report: Ecological Condition of Algae and Nutrients in Florida Springs: a Synthesis Report.
Authors: Stevenson, R.J., A. Pinowska, A. Albertin, J.O. Sickman
Project Lead
Reddy, Konda R
 
Project Participants
Reddy, Konda R
 
Additional Participants
Andrea Albertin
A. Pinowska
J.O. Sickman
R.J. Stevenson
 
EcoSystem:
Springs
 
WIClassLevel: 
Level 1: WI Affiliated Faculty Project
 
ThrustArea: 
Water, Land Use and Ecosystems
 
Sponsor
FL DEPT OF ENVIRONMENTAL PROTECT
 
Grant Award Dates
11/13/2006 to 12/31/2007