Photoautotrophic-Periphyton Composition in Reaches with Differing Nutrient Concentrations in the Harpeth River of Middle Tennessee
| Autor: | Josh C. Kraft, Zach A. Irick, Samantha L. Childs, Cooper A. Breeden, Bailey S. Hauskins, Jonathan M. Krausfeldt, Nicole I. Santoyo, Jefferson G. Lebkuecher, Matthew C. Evans, Sandra Bojic |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Chlorophyll a biology 010604 marine biology & hydrobiology Plant Science biology.organism_classification 010603 evolutionary biology 01 natural sciences chemistry.chemical_compound Nutrient chemistry Algae Benthic zone Environmental chemistry Environmental science Composition (visual arts) Sewage treatment Periphyton Trophic level |
| Zdroj: | Castanea. 83:288 |
| ISSN: | 0008-7475 |
| DOI: | 10.2179/18-163 |
| Popis: | Four sites of the Harpeth River, two upstream and two downstream of the Franklin Wastewater Treatment Facility in Franklin, Tennessee, were sampled to assess the impact of nutrient enrichment on the integrity of photoautotrophic periphyton. Concentrations of total phosphorus of water samples ranged from 310 μg.L−1 at the uppermost site to 1035 μg.L−1 at the site immediately downstream of the wastewater treatment facility. Concentrations of total nitrogen of water samples ranged from 687 μg.L−1 at the uppermost site to 1,434 μg.L−1 at the site immediately downstream of the wastewater treatment facility. Concentrations of benthic chlorophyll a did not differ significantly among the sites and ranged from 103 ± 11 mg.m−2 at the site immediately upstream of the wastewater treatment facility to 151 ± 13 mg.m−2 at the site immediately downstream. Percent composition of 186 algae taxa were documented: 92 taxa of soft-bodied algae and 94 taxa of diatoms. Values for the algae trophic index for soft-bodied... |
| Databáze: | OpenAIRE |
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