Stability of the macrobenthic community in a regulated section of the Brazos River, Texas, was evaluated. Physicochemical data and information on spatial distribution of macrobenthos were collected. Populations of two invertebrate species, Isonychia sicca and Neoperla clymene, had been greatly reduced since 1970-71 and I. sicca had been practically eliminated from this section of the Brazos. Three other insect populations, Choroterpes mexicanus, Cheumatopsche campyla and Cheumatopsyche lasia, had more than doubled their numbers since the 1970-71 study. A physicochemical gradient existed in this regulated section of the Brazos but it appeared to have changed little in comparison of earlier chemical data. A gradation of the macrobenthic community was evident as distance from the dam increased,
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc504393 |
| Date | 08 1900 |
| Creators | Coulter, James D. (James Duard) |
| Contributors | Stanford, Jack Arthur, 1947-, Stewart, Kenneth W., Beitinger, Thomas L., Zimmerman, Earl G. |
| Publisher | North Texas State University |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | i, 51 leaves: ill., map, Text |
| Coverage | United States - Texas, {1970..1971,1978} |
| Rights | Public, Coulter, James D. (James Duard), Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved. |
Page generated in 0.0026 seconds