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Red Tide (Karenia brevis) Studies Along the Texas Coast - Final Report

This report was commissioned by TPWD in 2001. Some of these files are quite large.

The following documents are provided in PDF format and require the free reader to view. If you have any difficulty accessing these documents, please contact us for an alternative format.

Ecological and genetic characterization of western Gulf of Mexico Gymnodinium breve by Lisa Campbell and Pascale Loret (PDF File size: 399KB)

A Red Tide Monitoring Program for Texas Coastal Waters by Tracy Villareal and Hugo A. Magana (PDF File size: 2.47MB)

Economic Impact of the 2000 Red Tide on Galveston County, Texas, A Case Study by Garen Evans and Lonnie Jones (PDF File size: 4.65MB)

The effect of environmental factors on the growth rate of Karenia brevis(Davis) G. Hansen and Moestrup by Hugo A. Magana and Tracy Villareal (PDF File size: 1.75MB)

Development of HPLC Technology for Detection of Gymnodinium breve by Erla Bjork Ornolfsdottir and James L. Pinckney ( PDF File size:1.33MB)

Remote sensing studies of the Gulf of Mexico - an effort in red tide prediction by Sonia C. Gallegos, Xiaogang Chen, and Melba M. Crawford (PDF File size: 1.08MB)


Additional Information:

The Texas Parks and Wildlife Department and the Texas Department of State Health Services investigate reports of possible red tide along the coast and in the bays.

Three common signs of a red tide bloom are:

  • discolored water
  • dead fish
  • breathing difficulty.

From the Centers for Disease Control:
The human health effects associated with eating brevetoxin-tainted shellfish are well documented. However, scientists know little about how other types of environmental exposures to brevetoxin—such as breathing the air near red tides or swimming in red tides—may affect humans. Anecdotal evidence suggests that people who swim among brevetoxins or inhale brevetoxins dispersed in the air may experience irritation of the eyes, nose, and throat, as well as coughing, wheezing, and shortness of breath. Additional evidence suggests that people with existing respiratory illness, such as asthma, may experience these symptoms more severely.

To report sightings of red tide during normal business hours, call your local TPWD office or 361-825-3244. Outside of normal business hours you may call TPWD's 24-hour communications centers at 512-389-4848 (Austin) or 281-842-8100 (Houston.)

Although some travelers may be concerned with how the red tide may affect their vacation plans, there are miles of clean beaches to enjoy on the Texas coast. When making travel plans, heed the advice of the Texas Department of State Health Services : get the current facts and draw your own conclusions.

For more information about red tide and the latest updates, call the TPWD hotline at (800) 792-1112, select fishing, then select red tide.

Current information about shellfish closures can be obtained by contacting the Seafood Safety Division of the Texas Department of State Health Services at (800) 685-0361. The Texas Parks and Wildlife Department and the Texas Department of State Health Services investigate reports of possible red tide along the coast and in the bays.

 

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