Sources & References

Our advocacy is grounded in scientific research, government reports, and expert analysis. All sources are linked and verifiable.

Our Approach to Evidence

This website presents advocacy positions based on peer-reviewed research, government studies, and expert analysis. We prioritize official government reports and published scientific research over anecdotal claims. Every claim can be traced to the sources listed below.

We encourage visitors to examine primary sources directly and draw their own conclusions.

Verifiable Sources

Manatees, Habitat, & Connectivity

Research on manatee populations, habitat requirements, and ecosystem connectivity

Agency
1997

The Effects of Proposed Restoration on Manatees and Manatee Habitat

Author
Kent Smith
Source
Florida DEP

Analysis of Rodman/Ocklawaha manatee use and restoration implications.

Agency
2001

Florida Manatee Recovery Plan (Third Revision)

Author
U.S. Fish & Wildlife Service
Source
USFWS

Comprehensive recovery plan addressing warm-water refuges and habitat connectivity.

Advocacy
2025

Protecting Manatees with Policy and Purpose

Author
Save the Manatee Club

Policy and advocacy discussion explicitly referencing breaching the dam and restoring access.

Advocacy
2020

Great Florida Riverway: Great Potential for Manatees

Author
Defenders of Wildlife

Analysis of manatee habitat potential and benefits of dam removal.

Advocacy
2020

Ocklawaha River Named Among America's Most Endangered Rivers of 2020

Author
Defenders of Wildlife

Information on flooding impacts, river miles, and Cross Florida Barge Canal legacy.

Agency
2006

Taylor Report on Springs Accessibility

Author
Marine Mammal Commission

Research on Florida springs accessibility and "thermal network" for manatees.

Drawdowns, Hydrology, & Springs

Information on reservoir management, water flow, and spring systems

Agency

SJRWMD Silver Springs Minimum Flows and Levels

Official St. Johns River Water Management District page on Silver Springs minimum flows and levels. Documents the science behind spring flow decline - primarily caused by groundwater withdrawals, not dam-related head pressure. Includes historical flow data and recovery strategies.

Peer-Reviewed

Hydrogeological Analysis of Spring Flow Variability in Florida Karst Systems

Peer-reviewed academic paper analyzing spring flow variability in Florida's karst aquifer systems. Provides scientific evidence that spring discharge is controlled by aquifer recharge and groundwater extraction rates, directly refuting claims that downstream impoundments like Rodman Dam could suppress spring flows.

Peer-Reviewed

USGS: Springshed Nutrient Loading and Spring Flow - Silver Springs (2004)

USGS Scientific Investigations Report 2004-5144. Comprehensive study of Silver Springs hydrology, nutrient loading, and factors affecting spring discharge. Demonstrates that groundwater withdrawals and aquifer levels - not surface water impoundments - are the primary drivers of spring flow changes.

Agency

USGS Silver Springs Real-Time Flow Data

Live USGS monitoring station data for Silver Springs (Station 02239500). Shows real-time and historical discharge measurements, proving spring flow decline correlates with regional groundwater pumping trends, not Rodman Reservoir water levels.

Agency
2017

Technical Fact Sheet: Rodman Reservoir Drawdown (2015–2016)

Author
SJRWMD
Source
St. Johns River Water Management District

Official data summary on drawdown mechanics, frequency, and water quality impacts.

Agency
2021

Drawdowns: A Brief Look at Rodman Reservoir

Author
UF/IFAS CAIP
Source
University of Florida Conflict Assessment and Intervention Program

Educational overview of drawdown frequency, duration, and mechanics.

Agency

Rodman Reservoir Drawdown FAQ

Author
Florida State Parks

Official information including drawdown schedule details and reasons.

Agency

Rodman Reservoir

Author
Florida Fish and Wildlife Conservation Commission

Notes on drawdown timing and details for aquatic plant control and habitat.

Water Quality, Algae, & SAV

Water quality data, algae blooms, and submerged aquatic vegetation

Advocacy

Algae Blooms: What You Need to Know

Author
St. Johns Riverkeeper

How nutrients (N & P) fuel blooms and sources of nutrient pollution.

Agency

Algae & Nutrients Overview

Author
SJRWMD
Source
St. Johns River Water Management District

Official water management district information on algae blooms and nutrient dynamics.

Agency

Tracking Aquatic Vegetation in the Lower St. Johns River

Author
SJRWMD
Source
SJRWMD Streamlines

Hurricane Irma's impact: tannins/dark water → light limitation → SAV stress.

Advocacy

Submerged Aquatic Vegetation (SAV)

Author
St. Johns Riverkeeper

Submerged aquatic vegetation decline post-Irma with light limitation and eelgrass habitat details.

Peer-Reviewed
2020

SAV Patterns & Tannins Study

Author
Journal of Aquatic Plant Management
Source
APMS

Peer-reviewed research on SAV patterns, tannins, and light dynamics.

Dam History & Context

Historical background on Rodman Dam and the Cross Florida Barge Canal

News

On Both Sides of the Dam

Author
WUFT

Comprehensive narrative with key figures: 7,500 acres flooded, 20 springs submerged.

News

Has One Florida Dam's Day Finally Come?

Author
Audubon Magazine

Overview and argument that Rodman is a vestigial canal-era dam without modern purpose.

Agency

Marion County & Moss Bluff Lock

Author
SJRWMD
Source
St. Johns River Water Management District

Moss Bluff Lock & Dam purpose and history: "reconstructed in 1968" for navigation purposes.

Additional Context & Resources

Supplementary sources and background information

Agency

Fish Consumption Advisories

Author
Florida Department of Health

Official guidance on health impacts and management of harmful algal blooms.

Agency

Mercury Testing & Advisory Context

Author
Florida Fish and Wildlife Conservation Commission

Florida Fish and Wildlife Conservation Commission's mercury testing program for freshwater fish.

Agency
2025

Florida Fish Consumption Advisories Guidebook

Author
Florida Department of Health

Comprehensive guidebook on fish consumption advisories.

Advocacy
2020

Ocklawaha River and Springs Environmental Analysis / Synoptic Study

Author
Florida Springs Institute

Scientific research and advocacy for Florida springs restoration and protection.