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Ichetucknee Springs:
Recreational Impairments?
Robert L. Knight, Ph.D.
Director
February 10, 2011
Ichetucknee Springs
Effects of Recreation on Turbidity
•Project scope:
•Six-month duration (summer
through winter)
•Direct effects of human uses
on turbidity
•Indirect effects of humanderived turbidity on other
spring properties (light
attenuation, water clarity,
primary productivity, etc.)
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Park Attendance
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Park Attendance
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Dampier’s Landing Sunday June 27, 2010
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Dampier’s Landing Sunday June 27, 2010
848 tubers, 35 swimmers, 3 kayaks
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Dampier’s Landing Tuesday July 6, 2010
460 tubers, 48 swimmers, 6 kayaks
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
North Launch Sunday July 25, 2010
628 tubers, 19 swimmers, 3 kayaks
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Turbidity Above North Launch
Summer Data – July 14 – August 1
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Turbidity Above North Launch
Fall/Winter Data – November-December
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Turbidity Below North Launch
Summer Data – July 14 – August 1
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Turbidity Below North Launch
Winter Data – December
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Turbidity @ Dampier’s Landing
Summer Data – June 16 - July 6
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Turbidity @ Dampier’s Landing
Fall/Winter Data – November-December
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Turbidity @ US 27 Takeout
Summer Data – June - September
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Turbidity @ US 27 Takeout
Fall/Winter Data – October-December
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Human-Induced Turbidity
Dampier’s Landing
North Tube Launch.
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Turbidity vs. Light Transmittance
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Light Transmittance @ 1 m
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
Horizontal Secchi Distance
Wetland Solutions, Inc.
Ichetucknee Springs Turbidity Study
QUESTIONS???
Wetland Solutions, Inc.
Protecting Florida’s Springs
Springs Health
•Florida Springs are in Danger
Due to:
•Flow reductions caused by
human consumptive uses of water
•Nitrogen sources from fertilizers
and waste waters
•Human recreational uses and
aquatic weed management
Springs
Health
Report Card
Ichetucknee
Was First!
Springs
Health
Report Cards
•Silver Springs
•Rainbow
Springs
•Silver Glen
Springs
Florida Spring Ecosystems
Spring Discharge and Flow Velocity
Stream Cross Section Velocity Profiles
Wetland Solutions, Inc.
Ichetucknee Springs Discharge
Florida Spring Ecosystems
Water Clarity
Wetland Solutions, Inc.
Ichetucknee Springs Water Clarity
Florida Spring Ecosystems
Submerged Aquatic Vegetation
Wetland Solutions, Inc.
Ichetucknee Springs SAV
Florida Spring Ecosystems
Filamentous Algae Cover
Wetland Solutions, Inc.
Ichetucknee Springs Algal Cover
Florida Spring Ecosystems
Water Quality
Wetland Solutions, Inc.
Ichetucknee Springs Nitrate
Concentration
Ichetucknee Research Agenda
•Monitor flow and water
quality at all major spring
boils and at Dampier’s
Landing, US 27, and above
SFR confluence
•Extend plant community
monitoring to SFR
•Routine fish and turtle counts
•Whole ecosystem monitoring
John Moran Photo
Recommendations
Florida Spring Ecosystems
Howard T. Odum Florida Springs Institute
Spring Institute’s Mission:
•Conduct monitoring of spring baseline
conditions and trends
•Recommend science-based
management goals and methods for
spring recovery
•Provide public education and
technical support for setting policy for
springs’ restoration and protection
•Encourage economic
development/policies that protect,
restore, and preserve Florida’s springs
Springs Institute Concept