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Spatial and Temporal Patterns of Areal and Volumetric Phytoplankton Productivity of Lake Texoma
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 …
Date:
August 2001
Creator:
Baugher, Tessy
System:
The UNT Digital Library
Layered Double Hydroxides And the Origins of Life on Earth
Thesis written by a student in the UNT Honors College discussing the origins of life on Earth and how layered double hydroxides were involved.
Date:
March 13, 2001
Creator:
Brister, Brian
System:
The UNT Digital Library
A Single Group
Thesis written by a student in the UNT Honors College discussing groups for single middle-aged people and what they offer.
Date:
Spring 2001
Creator:
Carter, Adrienne
System:
The UNT Digital Library
Factors Influencing Judicial Decision Making
Thesis written by a student in the UNT Honors College discussing the decision making process of state trial judges and what role gender plays (if any) in determining sentences.
Date:
Spring 2001
Creator:
Finley, Briana
System:
The UNT Digital Library
Political Literature: A Pistol Shot in the Dark
Thesis written by a student in the UNT Honors College discussing the significance of political fiction as a means to educate its audience about political ideologies.
Date:
Summer 2001
Creator:
Zirges, Amber
System:
The UNT Digital Library
Charting Cultural Changes Through the Movie Adaptations of The Three Musketeers
Thesis written by a student in the UNT Honors College discussing the differences between film adaptations of The Three Musketeers and the novel while placing each adaptation within the historical context of the decade in which it was created.
Date:
Autumn 2001
Creator:
Fee, Jeremy
System:
The UNT Digital Library