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

Increased Nutrient Loading of Spring-Fed Coastal Rivers: Effects on Habitat and Faunal Communities
Goals and Objectives
The overall goal of our research program is to develop and transfer into management a mechanistic understanding of the ecological effects of nutrient enrichment on Florida’s spring-fed rivers. For this work, we capitalize on an established sampling program in the Chassahowitzka and Homosassa rivers where nutrient and vegetation data have been collected since 1998 (see Frazer et al. 2001 and 2006). This project is intended to provide the complementary invertebrate and fish data essential to achieve the overall goal. Specific objectives for this project are: (1) to characterize quantitatively the invertebrate and fish assemblages in the Chassahowitzka and Homosassa rivers; (2) to provide accurate and precise measures of abundance and biomass for both invertebrates and fishes; and (3) quantify the food habits of the fishes so that trophic relationships can be established. During the second quarter of this effort, we continued processing of invertebrate samples collected during the first quarter of this effort, i.e. August 2007. In addition, quantitative analyses of fish data were completed to estimate the probability of capture, abundance and density for all species recaptured during electrofishing sampling, as well as for fishes that were numerous at seine depletion sites.
Planned Outputs
Final Report
Available Outputs

Title: Catchability model selection for estimating the composition of fishes and invertebrates within dynamic aquatic ecosystems. NRC Research Press. Can. J. Fish. Aquat. Sci. 70:1-12.
Authors: Lauretta, M.V., E.V. Camp, W.E. Pine, T.K. Frazer

Title: Final Report: Increased Nutrient Loading of Spring-Fed Coastal Rivers: Effects on Habitat and Faunal Communities
Authors: Frazer, T.K., M.V. Lauretta, W.E. Pine, E.J. Nagid, W. Strong, T. Tuten, G. Warren

Title: Phd Dissertation: Habitat mediated community structure within spring-fed, coastal rivers.
Authors: Lauretta. M.V.
Project Lead
Frazer, Tom K
Project Participants
Frazer, Tom K
Additional Participants
M. V. Lauretta
E.J. Nagid
William Pine
W. Strong
T. Tuten
G. Warren
Level 1: WI Affiliated Faculty Project
Water, Land Use and Ecosystems
Grant Award Dates
7/1/2007 to 7/31/2011