Lake Texoma Temperature and Oxygen Profile Update :

August 29, 2007

 
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Southcentral Region fisheries personnel monitored water quality parameters on August 29, 2007.  This was a follow up survey to determine if water quality had improved at the three sites sampled on August 16, 2007.   Water temperatures and dissolved oxygen readings were once again taken from surface to bottom at the previous three sites; the Denison Dam area; Railroad bridge; and Roosevelt bridge.  The profiles indicate oxygen levels improved greatly compared to those taken on August 16, 2007.   Oxygen levels were generally good for fish survival down to 50 feet or more compared to less than 20 feet at Roosevelt Bridge on August 16, 2007.  The improved oxygen levels can be attributed to several days of high winds, which stirred the surface and allowed the water to absorb more oxygen.  Fishing conditions should take a turn for the better by late September, as water quality gradually improves when the lake water cools and remixes from top to bottom.   




 Denison Dam:

This area of the lake still has the best water quality for fish survival. Water temperatures varied from 83°F at the surface to 75 °F at the bottom (98 feet). Oxygen levels ranged from 6 ppm at the surface to 0.02 ppm at the bottom (98 feet). Oxygen levels were adequate for fish survival down to 55 feet, then dropped to nearly 0 ppm at 65 feet. Oxygen levels should continue to improve throughout the entire water column in late September as the lake destratifies.

Frisco Bridge:

As you go up the lake toward Roosevelt bridge the water quality declines, but has greatly improved since August 16, 2007.  At the Frisco Bridge profile site, water temperatures varied from 85°F at the surface to 78°F at the bottom (79 feet). Oxygen levels ranged from 7.9 ppm to 0.14 ppm at the bottom. Oxygen levels were adequate for fish survival to 55 feet (compared to 15 feet on August 16, 2007), then dropped to 0.36 ppm at 65 feet.  Fishing conditions should improve in late September as oxygen increases in the water column when the lake destratifies.



Roosevelt Bridge:

Continuing up the lake toward Roosevelt Bridge, the water quality improved greatly compared to August 16, 2007.  At the Roosevelt Bridge profile site, water temperatures ranged from 86°F at the surface to 76°F at the bottom (76 feet). Oxygen levels were 8.3 ppm at the surface and 0.41 ppm at the bottom (76 feet).  Oxygen levels were adequate for fish survival down to 70 feet (comapared to 15 feet on August 16, 2007).  Fishing conditions should improve in this part of the lake in late September as the water cools and oxygen increases in the water column when the lake destratifies. 


 
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