Freshwater mussels are among the most overlooked yet vital creatures in Texas rivers. These silent filter feeders clean water, stabilize streambeds, and support entire aquatic food webs. Yet many Texas mussel species face mounting pressure from altered river flows, prolonged droughts, rising temperatures, and habitat changes.
What if your graduate research could directly shape how water is managed across Texas river basins and help prevent further declines in these keystone species?
Up to two fully funded graduate assistantships (one MS and one PhD) are now available in the NRI Mussel Lab at Texas A&M University. These positions offer a rare chance to combine rigorous laboratory experiments, extensive field work, and advanced modeling to inform environmental flow recommendations and conservation planning across the state.
Application deadline: October 1, 2026. Research can begin as early as Summer or Fall 2026, with classes starting Spring 2027.
Scholarship Summary
- Host Country: USA
- Host University: Texas A&M University
- Scholarship Type: MSC Scholarships/PhD Scholarships
- Eligible Countries: All Countries
- Scholarship Benefits: Full tuition fee, Living stipend, etc.
Why Mussel Ecology Research Matters Now in Texas
Texas rivers support unique mussel communities, but many populations are declining. Mussels act as living indicators of river health because they are long-lived, largely immobile, and highly sensitive to changes in flow, temperature, and water quality. When rivers dry out or flows drop too low, mussels can become stranded and die — a process called emersion.
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Understanding exactly how long different species can survive out of water, and what temperature thresholds they can tolerate, provides critical data for setting environmental flow standards that keep mussel beds wetted during critical periods. At the same time, predictive occupancy models help scientists and managers identify where mussels are most likely to persist under current and future conditions.
The projects available through these assistantships tackle both challenges head-on. Students will design and run controlled laboratory experiments to measure species-specific tolerance to desiccation and temperature stress. They will also conduct field surveys across hydrologic and habitat gradients to ground-truth occupancy models. The ultimate goal is to link physiological limits directly to flow management decisions and conservation priorities in Texas river systems.
This work is supported by state and federal natural resource agencies, meaning your research will have immediate relevance to real-world policy and recovery efforts.
Position Details and Funding for Texas A&M Mussel Ecology Graduate Assistantship
Location: Texas A&M AgriLife Research and Extension Center at Dallas (17360 Coit Road, Dallas, Texas). The Dallas center provides excellent access to a variety of north and central Texas river systems for field work.
Supervision: Dr. Charles Randklev (head of the NRI freshwater mussel program) and Dr. Roel Lopez in the Department of Rangeland, Wildlife and Fisheries Management (RWFM) and the Natural Resources Institute.
Funding (fully grant-supported Research Assistantships):
- PhD assistantship: Approximately $35,000 per year for 4 years (includes ~$9,000 tuition + ~$26,000 salary).
- MS assistantship: Approximately $32,000 per year for 2 years (includes ~$9,000 tuition + ~$23,000 salary).
Additional scholarship and funding opportunities may be available. These are competitive, stable positions that allow students to focus fully on research and professional development.
Start dates: Research work can begin Summer or Fall 2026. Formal coursework begins Spring 2027.
More information about the RWFM graduate program: https://rwfm.tamu.edu/graduate-programs/
What You Will Actually Do as a Graduate Student
These positions are hands-on and integrative. Expect a balanced mix of:
- Laboratory experiments quantifying how long mussels of different species can survive emersion and what temperature ranges they tolerate.
- Field surveys collecting data on mussel occurrence, habitat conditions, and hydrologic variables across multiple Texas river systems.
- Working with large environmental and hydrologic datasets to identify thresholds and drivers of mussel persistence.
- Developing and validating predictive occupancy models that managers can use for conservation planning.
- Connecting physiological findings directly to environmental flow (eflow) recommendations.
You will gain advanced skills in experimental design, statistical modeling, field sampling techniques (including potential SCUBA work for the PhD position), data analysis, scientific writing, and science communication — all highly valued in conservation biology, natural resource agencies, consulting, and academia.
The research has clear applied outcomes: better-informed water management decisions that protect biodiversity and ecosystem services in Texas rivers.
See Also:
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- UBC Centennial Scholars Entrance Award: The Complete Guide for Canadian Students Seeking Financial Support at UBC
Required Qualifications for Texas A&M Mussel Ecology Graduate Assistantship
For the PhD assistantship (requires prior master’s degree):
- MS in Biology or related field
- Previous research experience in environmental modeling and statistics
- GPA > 3.5
- GRE scores above 70th percentile (156 verbal, 159 quantitative)
- PADI (or equivalent) SCUBA certification
- Strong analytical, communication, and independent work skills
- Valid driver’s license and insurance; comfortable working in water and outdoors in heat and cold
For the MS assistantship:
- BS in Biology or related field
- Previous research experience in aquatic ecology, community ecology, or ecotoxicology
- GPA > 3.0
- GRE scores above 60th percentile (153 verbal, 156 quantitative)
- Same general requirements for skills, driver’s license, and field comfort
Both positions value detail-oriented, motivated individuals with a genuine passion for freshwater ecosystem conservation.
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How to Applyfor Texas A&M Mussel Ecology Graduate Assistantship
This is not a standard online application. Before applying through the university, you must first contact the professors directly.
Prepare a single PDF containing:
- Letter of interest (describe your qualifications, experience, background, and clearly state whether you are applying for the MS or PhD position)
- Current CV
- GRE scores
- GPA and unofficial transcripts
- Contact information for three academic or research references
Email the complete PDF to BOTH:
- Dr. Charles Randklev: crandklev@ag.tamu.edu
- Dr. Roel Lopez: roel.lopez@ag.tamu.edu
Feel free to reach out to either professor first with specific questions about the projects, the lab, or the graduate program. Early contact is encouraged and appreciated.
Official deadline: October 1, 2026
Full job posting with all details: https://jobs.rwfm.tamu.edu/view-job/?id=115689
Why Choose Texas A&M University for Mussel Ecology Graduate Work?
The Department of Rangeland, Wildlife and Fisheries Management consistently ranks among the top programs in the country for preparing students for careers in conservation, agency work, and research. The NRI Mussel Lab has a strong track record of producing science that directly informs state and federal conservation decisions, including species listing and recovery planning.
Students benefit from access to diverse field sites across Texas, collaboration with agency partners, and a supportive graduate community. The fully funded nature of these positions removes financial barriers and allows focused, high-quality research.
Whether your long-term goal is a career with the U.S. Fish and Wildlife Service, Texas Parks and Wildlife Department, environmental consulting, non-profit conservation, or academia, this experience will position you strongly.
Take the Next Step Toward Meaningful Graduate Research
If you are a motivated student with a strong background in aquatic ecology or related fields and a desire to conduct research that has tangible conservation impact, these assistantships represent an outstanding opportunity.
Texas rivers and their freshwater mussel communities need dedicated scientists who can bridge laboratory science, field data, and management recommendations. This is your chance to be part of that work.
Prepare your application materials and email both Dr. Randklev and Dr. Lopez well before the October 1, 2026 deadline. Reach out with thoughtful questions — they welcome inquiries from serious candidates.
More about the mussel research program: https://nri.tamu.edu/people/research/charles-randklev/
The future of Texas freshwater ecosystems depends on the next generation of well-trained, passionate researchers. Could that be you?
Apply soon and start making a measurable difference in freshwater conservation.