Tab 1. Habitat characteristics of the 17 study sites in the Río Acahuapa, San Vicente, El Salvador, 2011-2012. Average values of each of the environmental variables for five sampling campaigns.
| Sites |
T (°C) |
pH |
DO (mg/L) |
Conductivity (uS) |
Width (m) |
Depth (cm) |
Salinity (ppt) |
Water velocity (m/s) |
Sand (%) |
Rock (%) |
Leaves (%) |
Logs (%) |
Silt (%) |
Elevation (m) |
| ALE |
30.8 |
6.5 |
9.8 |
325.6 |
23.0 |
23.1 |
0.11 |
0.20 |
61.7 |
28.3 |
2.0 |
1.7 |
6.3 |
19 |
| ACA2 |
31.0 |
6.9 |
6.3 |
331.1 |
19.4 |
28.6 |
0.09 |
0.31 |
18.9 |
41.3 |
3.6 |
33.3 |
2.9 |
95 |
| ACA5 |
30.1 |
7.0 |
6.4 |
364.6 |
15.2 |
24.0 |
0.12 |
0.18 |
25.3 |
33.0 |
2.1 |
31.6 |
8.0 |
110 |
| ACA4 |
31.1 |
6.9 |
6.2 |
258.8 |
11.7 |
25.9 |
0.08 |
0.18 |
25.5 |
28.1 |
3.2 |
30.6 |
12.6 |
115 |
| SFE |
30.0 |
8.5 |
6.6 |
291.6 |
9.6 |
26.4 |
0.05 |
0.18 |
12.9 |
46.1 |
3.7 |
37.4 |
0.0 |
137 |
| SIS |
30.2 |
6.9 |
6.3 |
296.9 |
10.3 |
21.8 |
0.10 |
0.21 |
17.7 |
44.9 |
2.3 |
35.1 |
0.0 |
177 |
| LJO |
30.0 |
6.7 |
6.1 |
226.6 |
11.8 |
27.1 |
0.08 |
0.24 |
46.0 |
29.6 |
1.0 |
21.2 |
2.2 |
184 |
| ACA12 |
26.5 |
6.5 |
4.9 |
224.1 |
5.4 |
11.3 |
0.07 |
0.11 |
27.5 |
32.0 |
2.7 |
21.9 |
15.9 |
267 |
| SCR |
27.4 |
6.7 |
6.4 |
457.7 |
7.3 |
34.3 |
0.08 |
0.21 |
24.6 |
37.1 |
5.5 |
18.9 |
13.9 |
301 |
| AMA |
26.5 |
6.2 |
5.5 |
234.2 |
5.2 |
17.9 |
0.08 |
0.21 |
21.5 |
37.0 |
3.7 |
22.6 |
15.3 |
314 |
| GRA |
27.6 |
6.3 |
5.9 |
225.8 |
4.2 |
24.1 |
0.08 |
0.16 |
24.7 |
38.2 |
2.4 |
18.7 |
16.0 |
325 |
| ACH |
27.8 |
6.4 |
6.1 |
328.5 |
3.8 |
27.5 |
0.08 |
0.18 |
17.7 |
40.4 |
3.3 |
28.7 |
10.0 |
341 |
| TEM |
27.6 |
6.4 |
5.4 |
484.4 |
4.6 |
13.7 |
0.08 |
0.15 |
13.0 |
39.3 |
2.7 |
33.3 |
11.7 |
348 |
| FRI |
26.1 |
6.2 |
5.4 |
180.3 |
4.3 |
16.9 |
0.08 |
0.12 |
21.9 |
40.5 |
2.5 |
23.2 |
11.9 |
351 |
| ACA16 |
28.3 |
8.0 |
5.5 |
344.4 |
8.3 |
18.0 |
0.08 |
0.17 |
34.3 |
38.5 |
2.0 |
20.2 |
5.0 |
419 |
| ISM |
27.7 |
6.3 |
4.7 |
324.4 |
4.2 |
17.9 |
0.08 |
0.12 |
24.5 |
28.6 |
8.9 |
12.9 |
25.1 |
509 |
| IST |
28.5 |
6.8 |
5.0 |
438.4 |
9.6 |
20.8 |
0.18 |
0.20 |
21.9 |
33.0 |
3.4 |
23.4 |
18.3 |
519 |