Published July 3, 2017
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Tab. 1 in Seasonal variation in fish trophic networks in two clear-water streams in the Central Llanos region, Venezuela
Authors/Creators
- 1. Community Medical Associates, 76904 San Angelo, Texas, USA
- 2. Department of Wildlife and Fisheries Sciences, and Interdisciplinary Program in Ecology and Evolutionary Biology, Texas A & M University, 77843 College Station, Texas, USA
Description
Tab. 1. Physical and chemical characteristics measured for Charcote and Charcotico during four survey periods. DO was not measured during November and December. January was the low-water period, September was near the peak of the annual flood pulse, and during November and December floodwaters were gradually receding.
| Parameter | September | November | December | January | ||||
|---|---|---|---|---|---|---|---|---|
| Charcotico | Charcote | Charcotico | Charcote | Charcotico | Charcote | Charcotico | Charcote | |
| Water temperature (°C) | 28 | 27 | 27 | 28 | 26 | 27.5 | 29 | 30 |
| Air temperature (°C) | 30 | 26 | 28 | 27 | 30.5 | 30 | 26 | 34 |
| pH | 5.5 | 5.5 | 6 | 5 | 5.5 | 5.5 | 5.5 | 5.75 |
| Water velocity (m/s) | 0.12 | 0.45 | 0.39 | 0.39 | 0.3 | 0.39 | 0 | 0 |
| DO (mg/L) | 6 | 6 | – | – | – | – | 5 | 4 |
| Max. water depth (m) | 1.22 | 2.27 | 1.16 | 2.15 | 1.1 | 1.65 | 0.5 | 1.25 |
| % Aquatic vegetation | 0 | 0 | 0 | 50 | 0 | 75 | 0 | 20 |
| % Canopy cover | 4 | 5 | 5 | 5 | 2 | 3 | 2 | 0 |
| Secchi depth (m) | 1.22 | 2.27 | 1.16 | 2 | 0.5 | 0.4 | 0.2 | 0.35 |
Notes
Published as part of Peterson, Christopher C., Keppeler, Friedrich W., Saenz, David E., Bower, Luke M. & Winemiller, Kirk O., 2017, Neotropical Ichthyology 15 (2) on page e 160125, DOI: 10.1590/1982-0224-20160125, http://zenodo.org/record/20704959
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Related works
- Is part of
- Journal article: 10.1590/1982-0224-20160125 (DOI)
- Journal article: urn:lsid:plazi.org:pub:FC536E03FFDDFFB9FFC9FFEEFF67FFA6 (LSID)
- Journal article: http://zenodo.org/record/20704959 (URL)
- Journal article: http://publication.plazi.org/id/FC536E03FFDDFFB9FFC9FFEEFF67FFA6 (URL)