Stewart Michael McDaniel, AALSO Founding Member and Marine Science Innovator, Found Dead in Baltimore Home
The Baltimore community mourns the unexpected passing of Stewart Michael McDaniel, a distinguished marine biologist, entrepreneur, and founding member of the Aquatic Life Support Operators (AALSO). Stewart was discovered deceased in his Baltimore home on Tuesday evening, August 12, 2025, when police conducted a welfare check. The cause of death has not yet been determined.
A Life Anchored in Science and Innovation
Born in Ewing, New Jersey, Stewart grew up in a nurturing household with his mother, teacher Doris Jean McDaniel, and his father, Weldon “Mac” McDaniel, who worked for U.S. Steel. Raised alongside his grandparents, Stewart developed a profound respect for family, education, and community values.
He attended The Hun School before earning a degree from Oberlin College (Oberlin ’87), where his lifelong passion for marine science and sustainability took root.
Cultivator of Aquatic Life & Sustainability
Stewart’s career was built on a blend of scientific skill, creativity, and sustainability:
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He performed vital work at the National Zoo and National Aquarium, building expertise in aquatic systems.
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Stewart later traveled to Las Vegas to care for Steve Wynn’s dolphins at The Mirage.
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In Florida, he led Water Life Design, overseeing filtration systems for aquariums, zoos, and theme parks.
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One of his proudest achievements was creating a rooftop hydroponic greenhouse in downtown Winter Garden—using waste from tilapia tanks to fertilize vegetables, exemplifying innovative urban farming.
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He also shared his environmental ethos directly with community members through his work at Backyard Farms.
Building a Network of Aquatic Support
A true visionary, Stewart co-founded the Aquatic Life Support Operators (AALSO). What began as a small group of professionals grew into an influential network, fostering collaboration and career growth for hundreds in the aquatic life support field. Stewart was known for his mentorship, optimism, and his ability to meld scientific expertise with human connection.
A Renaissance Spirit
Stewart’s personal life mirrored his wide-ranging interests. Friends remember him as an atheist philosopher, art lover, and a thinker whose compassion and intellect illuminated every conversation. Though no longer married, he remained a devoted father to his son—his greatest source of pride.
A Community United in Mourning
Stewart’s loss resonates across scientific communities, AALSO, Oberlin College alumni, and countless colleagues and friends. He leaves behind a legacy defined by innovation, mentorship, and a deep commitment to environmental stewardship. Though the circumstances of his passing remain under investigation, his contributions continue to inspire.
Honoring Stewart’s Legacy
During this time of grief, there are many ways to honor Stewart’s life:
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Memorial Gatherings: Once plans are shared, gatherings—formal or informal—could serve to celebrate Stewart’s vision, humor, and impact.
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Innovation in Sustainability: In Stewart’s spirit, investing in community hydroponics or aquatic conservation initiatives would reflect his passion for creative environmental solutions.
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Mentorship Tributes: Continuing his legacy by supporting young professionals in aquatic science clubs, scholarships, or mentorship efforts would be a fitting homage.
In Conclusion
Stewart Michael McDaniel made a lasting difference—through scientific ingenuity, community-building, and personal warmth. His memory endures in the waters he nurtured, the networks he fostered, and the lives he touched.
To Stewart’s friends, family, and colleagues: you are in my deepest thoughts. If you wish to share personal stories, service details, or further reflections, I’d be honored to help craft a tribute that captures the fullness of who Stewart was.