Phytoplankton productivity of Lake Texoma was measured for one year from August 1999 to August 2000 for four stations, using the oxygen change method and laboratory incubation. Mean values of the photosynthetic parameters, PBmax and alphaB ranged from 4.86 to 46.39 mg O2.mg Chl-1.hr-1 for PBmax and 20.06 to 98.96 mg O2.mg Chl-1.E-1.m2 for alphaB. These values were in the range to be expected for a highly turbid, temperate reservoir. Estimated gross annual areal productivity ranged from 594 g C.m2.yr-1 (P.Q. = 1.2), at a station in the Washita River Zone to 753 g C.m2.yr-1 at a station in the Red River Zone, of the reservoir. Gross annual areal productivity at Station 17, in the Main Lake Zone, was 708 g C.m2.yr-1. Gross areal and volumetric productivity showed distinct seasonal variation with Photosynthetically Available Radiation (PAR) and temperature. Trophic status estimated on a station-by-station basis, using net productivity values derived from gross productivity and respiration estimates, was mesotrophic for all the stations, though one station approached eutrophy. Net productivity values ranged from 0.74 to 0.91 g C. m-2.d-1. An algal bioassay conducted at two stations in August 2000, revealed that phosphorus was most likely the nutrient limiting photosynthesis at both …

Semi-monthly newspaper from Oklahoma City, Oklahoma that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.

Weekly newspaper from Tulsa, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Tulsa, Oklahoma that includes local, state, and national news along with advertising.

Photograph of a scene at the Oklahoma City National Memorial and Museum, the Murrah Federal Building bombing site.

Photograph of the exterior of the E.W. Marland Mansion.

Photograph of the exterior of the E.W. Marland Mansion.

Photograph of a scene at the Oklahoma City National Memorial and Museum, the Murrah Federal Building bombing site.

Photograph of a scene on the Lake Hefner Trails.

Photograph of a scene during the National Drag Boat Races, on Lake Overholser.

Photograph of the exterior of the E.W. Marland Mansion.

Photograph of a scene at the Oklahoma City National Memorial and Museum, the Murrah Federal Building bombing site.

Photograph of a scene at the Oklahoma City National Memorial and Museum, the Murrah Federal Building bombing site.

Photograph of a scene during the National Drag Boat Races, on Lake Overholser.

Photograph of a scene during the National Drag Boat Races, on Lake Overholser.

Photograph of the exterior of the E.W. Marland Mansion.

Photograph of a scene during the National Drag Boat Races, on Lake Overholser.

Photograph of the exterior of the E.W. Marland Mansion.