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Table 1
Locations and environmental features of the study sites. The different land uses were determined with Quantum GIS 3.4.9.
| Stream/Site | Latitude S | Longitude W | Land uses (%) | Main pollution sources | Watercolor | Flow | Substratum | Macrophytes richness- coverage | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
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| Urban | Vegetation | Rural | Emergent | Floating | Submerged | |||||||
| Claro/BA7b | 34.40316 | 58.68137 | 75.9 | 24.1 | 0.0 | Urban or road and industrial discharge | Greenish brown | Steady/ Low | Cement | 3 (15%) | 1 (5%) | 0 (0%) |
| Claro/BA7a | 34.44203 | 58.70225 | 79.2 | 20.8 | 0.0 | Urban or road and industrial discharge | Brown | Steady | Cement | 2 (10%) | 0 (0%) | 0 (0%) |
| Pinazo/BA12 | 34.45286 | 58.82164 | 39.7 | 60.3 | 0.0 | Urban or road and industrial discharge | Brown | Steady | Silt/clay | 7 (45%) | 1 (20%) | 0 (0%) |
| Burgueño/BA9 | 34.43387 | 58.86349 | 42.8 | 57.2 | 0.0 | Urban or road discharge | Brown | Low | Pebble/silt/clay | 6 (30%) | 2 (10%) | 5 (20%) |
| Carabassa/BA8 | 34.46459 | 58.95793 | 40.7 | 59.3 | 0.0 | Urban or road discharge | Brown/ Green | Steady | Silt/clay | 8 (30%) | 5 (30%) | 4 (5%) |
| Larena/BA6 | 34.40705 | 59.00979 | 20.6 | 17.4 | 62.0 | Urban or road discharge | Brown | Static | Silt/clay/sand | 6 (40%) | 4 (30%) | 2 (5%) |
| Pereyra/BA2 | 34.60167 | 59.15575 | 11.2 | 22.4 | 66.4 | Urban or road and agricultural discharge | Transparent | Steady | Pebble/calcareous tuff/silt | 9 (60%) | 0 (0%) | 1 (10%) |
| El Chaña/BA26 | 34.61427 | 59.19272 | 10.4 | 17.3 | 72.3 | Urban or road discharge | Brown | Static | Silt/clay | 14 (85%) | 0 (0%) | 0 (0%) |
| Del Oro/BA4 | 34.51107 | 59.44188 | 1.6 | 11.3 | 87.1 | Urban or road discharge | Brown | Static | Silt/clay/sand | 9 (70%) | 0 (0%) | 0 (0%) |
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