Species composition, diversity, biomass, and chlorophyll of periphyton in greasy creek, red rock creek, and the Arkansas River, Oklahoma
✍ Scribed by Jerry Wilhm; James Cooper; Harold Namminga
- Book ID
- 104614869
- Publisher
- Springer
- Year
- 1978
- Tongue
- English
- Weight
- 470 KB
- Volume
- 57
- Category
- Article
- ISSN
- 1573-5141
No coin nor oath required. For personal study only.
✦ Synopsis
Seventy-nine taxa of periphyton were collected on Plexiglas plates at seven stations in the three streams between March, 1975, and February, 1976 . More taxa and lower densities were generally observed at the upstream stations in the creeks than at the downstream stations resulting in greater species diversity values at the upstream stations . Species diversity was generally lower in the river than in the creeks, reflecting the lower numbers of taxa and the presence of several abundant species . Species diversity did not reflect extremes in physiochemical conditions . Although several different species were abundant in the streams during the present study, the most commonly occurring dominants were Gom- phonema olivaceum and species belonging to the genera Navicula and Nitzschia. No consistent trend was observed in ash-free weight; however, the concentration of chlorophyll a was generally greater at the downstream stations in the creeks than at the upstream stations.