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Reappearance of the Texas Brown Tide in Upper Laguna Madre, Texas

A bucket sample from a Brown Tide in upper Laguna Madre, Texas. (Photo: Camie Hyatt UTMSI)

A bucket sample from a Brown Tide in upper Laguna Madre, Texas. (Credit: Camie Hyatt, UTMSI)

Harmful Algal Bloom Event Response Program funding allowed researchers from the University of Texas at Austin Marine Science Institute (UTMSI) to rapidly sample the extent of Aureoumbra lagunensis (also known as Texas Brown Tide) when it reappeared in Laguna Madre. Past experience with Aureoumbra lagunensis in the Laguna Madre system suggested this bloom could persist for years, threatening its extensive seagrass meadows. UTMSI researchers were able to determine baseline information on physical and chemical parameters and cell concentrations at the onset of the bloom. Findings communicated to the Texas Parks and Wildlife Division, helped the agency analyze potential risks to popular fisheries dependent on healthy seagrasses in the highly productive system.

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