To better understand abiotic dynamics in Southern reservoirs receiving heated effluents, water was analyzed before and after impoundment in 330 ha North Lake. Macronutrients, metals, and chlorinated hydrocarbons were measured. Concentrations of nutrients and metals in sediments were quantified in this 2 yr study. River water prior to impoundment contained 16 times more total phosphorus, and supported 23 times more Selenastrum capricornutum cells in an algal assay than reservoir water. The reservoir has essentially no drainage and since evaporation is high, the concentrations of many dissolved solids have increased since the reservoir was filled in 1958. North Lake is now phosphorus limited. Apparently altered chemical equilibria have caused precipitation or adsorption of phosphorus with calcium and iron.
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc663687 |
| Date | 12 1900 |
| Creators | Sams, Barry L. |
| Contributors | Silvey, J. K. G. (Joseph Kean Gwynn), 1907-1989, Norton, S. J., Stanford, Jack Arthur, 1947-, Fitzpatrick, Lloyd C. |
| Publisher | North Texas State University |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | viii, 112 leaves: ill.. map, Text |
| Coverage | United States - Texas - Denton County - Northlake |
| Rights | Public, Sams, Barry L., Copyright, Copyright is held by the author, unless otherwise noted. All rights |
Page generated in 0.0025 seconds