Ä¢¹½TV

• M.S. in Marine Scince, Kagoshima University
• B.S. in Marine Science, Kagoshima University

Environmental microbiology and chemistry, harmful algal blooms, Karenia brevis ecology, proteomics, microbial water quality, estuarine ecology, cyanobacteria mitigation, fecal indicator bacteria, Vibrio ecology, aquatic biogeochemistry, and environmental monitoring in subtropical aquatic systems.

• 2026
Garcia, P.E., Hancock, T.L., Urakawa, H.E., & Urakawa, H. The interplay of biological and environmental factors in shaping dissolved organic matter and H2O2 dynamics in a subtropical river. Limnology 27(2), 251–264.
• 2025
Garcia, P.E., Urakawa, H.E., Hancock, T.L., & Urakawa, H. Influence of dissolved organic matter origin on hydrogen peroxide concentration in aquatic environments of southern Florida. Environmental Chemistry 22(7), EN25005.
• 2024
Urakawa, H., Adhikari, P.L., Urakawa, H.E., Bartleson, R.D., & Rumbold, D.G. Microbial assessment of the ecological linkage between a red tide of Karenia brevis and bottom water anoxia off the coast of Fort Myers and Sanibel Island, Florida. Regional Studies in Marine Science 78, 103765.
• 2023
Kratz, M.A., Hancock, T.L., Urakawa, H.E., Duke, L.D., Thomas, S., & Urakawa, H. Polyphasic Source Tracking Approach Enables Greater Understanding of Fecal Indicator Bacteria Sources in a Tidal River. SSRN Electronic Journal.
• 2020
Urakawa, H., Hancock, T.L., Steele, J.H., Dahedl, E.K., Urakawa, H.E., Ndungu, L.K., et al. Complete genome sequence of Microcystis aeruginosa FD4, isolated from a subtropical river in southwest Florida. Microbiology Resource Announcements 9(38), e00813-20.
Conference Presentations
• Evaluation of Hydrogen Peroxide–Based Mitigation of Cyanobacterial Blooms at Lake Okeechobee Using Lake Guard Oxy (2026 FLASM)
• Assessment of Lake Guard® Oxy Treatment at Lake Okeechobee Outflow Structure and Canal (2025 FLASM)
• Comparative Analysis of Phytoplankton Communities in 45 Ponds of Bonita Bay Community and Implications for Water Management (2023 FLASM)
• Investigating the Effectiveness of Lake Guard® Oxy (Algaecide) During the 2024 Cyanobacterial Bloom Season at S-77 (2025 FLMS)
• Environmental dynamics of fecal indicator bacteria, and Vibrio after Hurricane Ian in Southwest Florida (2024 FLMS)
• Comparative study of microbial community structures of 52 ponds in Bonita Bay Community (2023 FLMS)
• Effects of water discharge and its Interaction on spring phytoplankton succession at Franklin Lock and Dam in the Caloosahatchee River (2020 Water Resources Conference)
• Determination of Nitrogen species (Ammonia, Nitrite and Nitrate) and Orthophosphate in the Aqueous Environment of Southwest Florida as Explored in the Environmental Chemistry (CHM-1084C) Laboratory Course at Ä¢¹½TV (2018 Southwest Florida Water Resources Conference)