| Title: |
Variable Flow Study – Seven Years of Monitoring and Applied Research |
Description:
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Summary of the Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal and San Marcos Springs Ecosystems Aquatic for 2000-2007
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| Title: |
Assessment of Factors Influencing Texas Wild-Rice (Zizania texana) Sexual and Asexual Reproduction |
Description:
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Laboratory and field studies on critical determinants of reproduction in Texas Wild-Rice (Zizania texana)
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| Title: |
Assessment of Instream Flow and Habitat Requirements for Cagle’s Map Turtle (Graptemys caglei) |
Description:
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Field study on population and habitat of Cagle’s Map Turtle and factors affecting them, including instream flow requirements, water quality, and benthics
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| Title: |
Final Report for Deep Aquifer Biota Study of the Edwards Aquifer |
Description:
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Deep-aquifer biota study in five counties of the Edwards Aquifer
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| Title: |
Well Sampling for Aquifer Biota |
Description:
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Sampling plan for studying subterranean species of the Edwards Aquifer Balcones Fault Zone San Antonio Segment
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| Title: |
Evaluation of Augmentation Methodologies in Support of In-Situ Refugia at Comal and San Marcos Springs, Texas |
Description:
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Evaluation of different augmentation methodologies to maintain habitats in Comal and San Marcos Springs during drought conditions
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2011 Annual Report |
Description:
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Annual report for 2011 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2011 Annual Report |
Description:
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Annual report for 2011 on biota study of San Marcos Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2005 Annual Report |
Description:
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Annual report for 2005 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2005 Annual Report |
Description:
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Annual report for 2005 on biota study of San Marcos Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2002 Annual Report |
Description:
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Annual report for 2002 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2002 Annual Report |
Description:
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Annual report for 2002 on biota study of San Marcos Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2001 Annual Report |
Description:
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Annual report for 2001 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2001 Annual Report Appendix C: Drop Net Raw Data |
Description:
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Raw drop-net data for the 2001 Annual report on biota study of San Marcos Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2004 Annual Report |
Description:
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Annual report for 2004 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2004 Annual Report |
Description:
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Annual report for 2004 on biota study of San Marcos Springs/River
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| Title: |
Comal Springs Riffle Beetle Habitat and Population Evaluation/ Final Report Variable Flow Study: Project 802, Task 13 Landa Lake, New Braunfels, Texas |
Description:
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Sampling of Comal Springs riffle beetle in habitat extent study during 2001-2002 |
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| Title: |
Ecology of the Exotic Giant Rams-Horn Snail, Marisa cornuarietis, Other Biological Characteristics and a Species/Ecological Review of the Literature of the Comal Springs Ecosystem of South Central Texas |
Description:
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Literature research on endangered species of the Edwards Aquifer, and field and laboratory studies on the giant rams-horn snail (Marisa cornuarietis) |
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| Title: |
Survey Report on Edwards Underground Reservoir Guadalupe, San Antonio and Nueces Rivers and Tributaries, Texas. Volume 3 Appendix III Geology Appendix V Economic Base Study Appendix VI Recreation and Wildlife |
Description:
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Note: This report is included for its historical value and may have been replaced by more recent studies. Volume 3 (Appendix III Geology Appendix V Economic Base Study Appendix VI Recreation and Wildlife) of survey by the US Army Corps of Engineers and the Edwards Underground Water District, emphasizing possible locations for reservoirs and containment systems.
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| Title: |
Exploring Drought in the San Antonio Area Between 1700 and 1979 |
Description:
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Using tree rings to analyze droughts for the San Antonio area between 1700 and 1979 |
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| Title: |
Trans-Texas Water Program West Central Study Area Phase II Guadalupe-San Antonio River Basin Environmental Criteria Refinement |
Description:
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Modeling, summary of biological studies, and sensitivity analyses to support refinement of environmental criteria for the Trans-Texas Water Program West Central Study Area Phase II Guadalupe-San Antonio River Basin Note: This report is included for its possible historical value but has been replaced by the Texas Water Plan.
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2006 Annual Report |
Description:
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Annual report for 2006 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2006 Annual Report |
Description:
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Annual report for 2006 on biota study of San Marcos Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2008 Annual Report |
Description:
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Annual report for 2008 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2009 Annual Report |
Description:
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Annual report for 2009 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2010 Annual Report |
Description:
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Annual report for 2010 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2003 Annual Report |
Description:
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Annual report for 2003 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2007 Annual Report |
Description:
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Annual report for 2007 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2008 Annual Report |
Description:
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Annual report for 2008 on biota study of San Marcos Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2007 Annual Report |
Description:
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Annual report for 2007 on biota study of San Marcos Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2009 Annual Report |
Description:
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Annual report for 2009 on biota study of San Marcos Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2010 Annual Report |
Description:
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Annual report for 2010 on biota study of San Marcos Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2003 Annual Report |
Description:
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Annual report for 2003 on biota study of San Marcos Springs/River
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| Title: |
Executive Summary of Water Availability Study for the Guadalupe and San Antonio River Basins |
Description:
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Note: This paper is included for its historical value but has been replaced by more recent studies. Summary of studies on proposed reservoirs on the Guadalupe and San Antonio Rivers.
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| Title: |
Comal Springs Riffle Beetle Laboratory Study Evaluation Under Variable Flow Conditions |
Description:
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Laboratory study of the Comal Springs Riffle beetle under varying horizonal and vertical flow conditions
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| Title: |
Fountain Darter Laboratory Study Repoductive Response to Parasites and Temperature Flucuations |
Description:
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Laboratory study of effects of temperature fluctuations and parasites on reproduction in the fountain darter
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| Title: |
Aquatic Vegetation Laboratory Study: Phase 1: Observations of water quality changes and plant growth under various flows. Phase 2: Effects of carbon dioxide level on aquatic plants found in the Comal and San Marcos Springs/River Ecosystems. Final Report Variable Flow Study: Project 802, Task 27 San Marcos National Fish Hatchery & Technology Center, San Marcos, Texas |
Description:
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Study on effects of changing flow rates and CO2 levels on six species of aquatic vegetation found in the Comal and San Marcos River/Springs ecosystems
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the Comal Springs/River Aquatic Ecosystem Final 2012 Annual Report |
Description:
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Annual report for 2012 on biota study of Comal Springs/River
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| Title: |
Comprehensive and Critical Period Monitoring Program to Evaluate the Effects of Variable Flow on Biological Resources in the San Marcos Springs/River Aquatic Ecosystem Final 2012 Annual Report |
Description:
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Annual report for 2012 on biota study of San Marcos Springs/River
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| Title: |
Threatened and endangered plant and animal species of the Edwards Aquifer |
Description:
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Description, distribution, habitat, feeding and breeding requirements of seven species of the Edwards Aquifer listed by the United States Fish & Wildlife Service and/or Texas Parks and Wildlife Department as Threatened or Endangered as of 1995. Note: this document is included for its historical value and may have been superseded by more recent classifications and publications.
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| Title: |
Final report as required by the Endangered Species Program, Texas: grant no. E-38-HP: endangered and threatened species conservation: habitat conservation planning for the development of the Edwards Aquifer Authority habitat conservation plan |
Description:
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Summary of progress on development of the Habitat Conservation Plan (HCP) to protect the Comal and San Marcos spring ecosystems and mitigate any incidental take of listed species that would occur as a result of low spring flows, and Environmental Impact Statement (EIS) for description of the preferred alternative
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| Title: |
Habitat conservation planning for development of the Edwards Aquifer Authority Habitat Conservation Plan: grant no. E-38-HP: grant program, Section 6 habitat conservation plan planning assistance |
Description:
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Summary of progress to 2005 on development of the Habitat Conservation Plan (HCP) to protect the Comal and San Marcos spring ecosystems and mitigate any incidental take of listed species that would occur as a result of low spring flows, and Environmental Impact Statement (EIS) for description of the preferred alternative |
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| Title: |
Technical Assessments in Support of the Edwards Aquifer Science Committee “J Charge” Flow Regime Evaluation for the Comal and San Marcos River Systems |
Description:
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Modeling for critical flow requirements to protect endangered species in the Comal and San Marcos Rivers
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| Title: |
Fauna of Wells Near the Saline Water line of the Edwards Aquifer, Texas |
Description:
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Zara Deep Aquifer Biota Study of Fauna of Wells Near the Saline Water line of the Edwards Aquifer
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| Title: |
Valdina Farms Sinkhole: Hydrogeologic & Biologic Evaluation |
Description:
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Documentation of hydrogeology, structure and fauna in Valdina Farms Sinkhole, Medina County, in 1987
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| Title: |
Effects of Brush Management on the Hydrologic Budget and Water Quality In and Adjacent to Honey Creek State Natural Area, Comal County, Texas, 2001-10 |
Description:
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Effects of brush management on hydrologic budget and water quality. May not be generalizable to all locations. See Fact Sheet companion document of the same name.
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| Title: |
Optimization Technical Studies in Support of the Edwards Aquifer Optimization Program |
Description:
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Summary of proposed optimization studies for the EAA. Note: Is outdated. Has been replaced by more recent modeling studies and water plans.
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