Sites | T° | Flow Velocity (cm s −1) | pH | Cond (μS cm−1) | TDS (mg l−1) | Sal (PSU) | NO− 2(mg l−1) | NH+ 4(mg l−1) | PO 3− 4(mg l−1) |
---|---|---|---|---|---|---|---|---|---|
C1 | 17 | 25 < v < 50 | 7.67 | 517 | 228 | 0.2 | 0.03 | 0.17 | 0.14 |
C2 | 22 | 25 < v < 50 | 7.43 | 655 | 289 | 0.2 | 0.02 | 0.06 | 0.1 |
C3 | 17 | v < 10 | 7.66 | 608 | 269 | 0.2 | 0.03 | 0.11 | 0.05 |
B1 | 20 | 25 < v < 50 | 8.12 | 702 | 338 | 0.3 | 0 | 0 | 16.8 |
B2 | 18 | 25 < v < 50 | 8.14 | 722 | 348 | 0.3 | 0 | 0 | 2.4 |
B3 | 17 | 25 < v < 50 | 8.16 | 725 | 349 | 0.3 | 0 | 0 | 0.09 |
E1 | 24 | 25 < v < 50 | 8.12 | 615 | 271 | 0.2 | 0.02 | 0.05 | 0.02 |
E2 | 26 | 25 < v < 50 | 7.74 | 523 | 230 | 0.2 | 0.02 | 0.02 | 0.03 |
E3 | 24 | 25 < v < 50 | 8.04 | 550 | 242 | 0.2 | 0.02 | 0.02 | 0.04 |
H1 | 19 | 10 < v < 25 | 7.05 | 633 | 293 | 0.2 | 0.02 | 0.02 | 0.08 |
H2 | 20 | 25 < v < 50 | 7.74 | 669 | 303 | 0.3 | 0.01 | 0.17 | 0.06 |
H3 | 20 | 10 < v < 25 | 7.82 | 921 | 416 | 0.4 | 0.02 | 0.15 | 0.14 |
G1 | 19 | v < 10 | 7.21 | 665 | 333 | 0.3 | 0 | 0 | 0.15 |
G2 | 20 | 25 < v < 50 | 7.5 | 741 | 371 | 0.3 | 0 | 0.18 | 0.15 |
G3 | 19 | 10 < v < 25 | 7.1 | 873 | 437 | 0.4 | 0 | 0.03 | 0.15 |
Y1 | 17 | v > 50 | 7.37 | 421 | 187 | 0.1 | 0.01 | 0.4 | 0.01 |
Y2 | 16 | v > 50 | 7.41 | 562 | 247 | 0.2 | 0.03 | 0.05 | 0.14 |
Y3 | 16 | v < 10 | 7.35 | 662 | 293 | 0.2 | 0.02 | 0.21 | 0.04 |
Order/Family | Genus/Species | Code | W.C | W.B | W.E | W.H | W.G | W.Y | AF (%) |
---|---|---|---|---|---|---|---|---|---|
Ephemeroptera | |||||||||
Baetidae | 12.24 | 29.72 | 18.2 | 5.37 | 11.02 | 13.33 | |||
1.02 | 0.24 | 1.65 | 0.39 | ||||||
6.30 | 2.20 | 1.42 | |||||||
Heptageniidae | 11.22 | 0.71 | |||||||
7.14 | 0.45 | ||||||||
Leptophlebiidae | 3.06 | 0.19 | |||||||
Caenidae | 1.02 | 5.40 | 0.45 | ||||||
Total Ephemeroptera | 35.71 | 41.44 | 18.45 | 0 | 7.02 | 13.22 | 16.96 | ||
Plecoptera | |||||||||
Capiniidae | 4.08 | 0.26 | |||||||
Chloroperlidae | 2.04 | 53.84 | 0.58 | ||||||
3.06 | 0.19 | ||||||||
Nemouridae | 1.24 | 0.32 | |||||||
Total Plecoptera | 9.18 | 0 | 1.24 | 53.84 | 0 | 0 | 1.36 | ||
Heteroptera | |||||||||
Notonecti dae | 0.41 | 0.06 | |||||||
Hydrometridae | 1.02 | 0.90 | 0.49 | 0.26 | |||||
Mesoveliidae | 0.14 | 0.06 | |||||||
Veliidae | 6.12 | 0.44 | 0.58 | ||||||
Nepidae | 0.24 | 0.14 | 0.13 | ||||||
Total Heteroptera | 7.14 | 0.90 | 0.74 | 0 | 0.41 | 0.72 | 1.10 | ||
Hymenoptera | |||||||||
Agriotypidae | 4.13 | 0.65 | |||||||
Coleoptera | |||||||||
Scirtidae | 25.51 | 30.76 | 1.88 | ||||||
Dyscidae | 0.24 | 0.41 | 0.13 | ||||||
0.24 | 0.06 | ||||||||
3.06 | 0.24 | 0.41 | 0.44 | 0.45 | |||||
3.06 | 0.24 | 0.41 | 0.44 | 0.06 | |||||
0.82 | 0.44 | 0.32 | |||||||
Hydroporinae und. | 1.02 | 0.06 | |||||||
Elmidae | 0.49 | 0.13 | |||||||
0.74 | 0.19 | ||||||||
Hydrophiidae | 0.24 | 0.06 | |||||||
Hydraenidae | 0.24 | 0.06 | |||||||
0.24 | 0.06 | ||||||||
Noteridae | 2.04 | 7.69 | 0.19 | ||||||
Spercheidae | 1.02 | 0.06 | |||||||
Total Coleoptera | 32.65 | 0 | 2.74 | 38.46 | 41.64 | 0.88 | 3.75 | ||
Trichoptera | |||||||||
Brachycentridae | 2.24 | 70.24 | 11.76 | 16.76 | |||||
Hydropsychidae | 6.12 | 42.43 | 0.24 | 3.5 | |||||
1.02 | 42.43 | 0.24 | 0.06 | ||||||
Total Trichoptera | 7.14 | 42.43 | 0.49 | 70.24 | 11.76 | 20.32 | |||
Diptera | |||||||||
Limoniidae | 4.08 | 7.69 | 0.44 | 0.52 | |||||
Scatophagidae | 3.06 | 0.41 | 0.26 | ||||||
Tabanidae | Tabanidae und. | 0.74 | 0.19 | ||||||
Culicidae | 0.24 | 0.06 | |||||||
Chaoboridae | 0.14 | 0.06 | |||||||
Chironomidae | 0.24 | 0.06 | |||||||
Dixidae | 9 | 0.14 | 0.71 | ||||||
Simuliidae | Simuliidae und. | 1.02 | 6.30 | 73.06 | 16.11 | 72.64 | 53.98 | ||
Total Diptera | 8.16 | 15.31 | 74.31 | 7.69 | 16.52 | 73.36 | 55.86 |
Wadis | Site | Alttitude (m) | Longitude (N) | Latitude (E) | Dominant substrate | Human pressure |
---|---|---|---|---|---|---|
W. Chaaba | C1 | 1331 | 35°33ʹ42ʺ | 06°00ʹ43ʺ | coarse sand, stone, rocks | forest |
C2 | 1270 | 35°33ʹ07ʺ | 06°00ʹ24ʺ | coarse sand, stone, rocks | forest | |
C3 | 1233 | 35°32ʹ34ʺ | 06°00ʹ37ʺ | coarse sand, fine sand, Stone | forest/agricultural | |
W. Bouilef | B1 | 1065 | 35°37ʹ02ʺ | 06°11ʹ16ʺ | fine sand, stone | forest/agricultural |
B2 | 1032 | 35°36ʹ29ʺ | 06°11ʹ39ʺ | coarse sand, rocks | agricultural | |
B3 | 1024 | 35°36ʹ21ʺ | 06°11ʹ50ʺ | coarse sand, stone | agricultural | |
W. El Ma | E1 | 1431 | 35°35ʹ55ʺ | 06°02ʹ25ʺ | coarse sand, rocks | forest |
E2 | 1235 | 35°36ʹ40ʺ | 06°02ʹ05ʺ | coarse sand, stone | forest/ agricultural | |
E3 | 1143 | 35°37ʹ19ʺ | 06°02ʹ14ʺ | coarse sand, stone | urban | |
W. Hamla | H1 | 1406 | 35°34ʹ47ʺ | 06°03ʹ03ʺ | fine sand, stone | forest |
H2 | 1289 | 35°34ʹ51ʺ | 06°04ʹ09ʺ | stone, rocks | agricultural | |
H3 | 1246 | 35°34ʹ45ʺ | 06°04ʹ37ʺ | coarse sand, fine sand | urban | |
W. Chelia | G1 | 1560 | 35°17ʹ30ʺ | 06°38ʹ11ʺ | coarse sand, stone, | forest/agricultural |
G2 | 1415 | 35°17ʹ04ʺ | 06°38ʹ50ʺ | rocks coarse sand, stone | forest/urban | |
G3 | 1320 | 35°16ʹ47ʺ | 06°40ʹ01ʺ | coarse sand, stone, rocks | agricultural | |
W. Yabous | Y1 | 1365 | 35°21ʹ10ʺ | 06°38ʹ35ʺ | coarse sand, stone, rocks | forest/agricultural |
Y2 | 1285 | 35°21ʹ39ʺ | 06°38ʹ37ʺ | coarse sand, stone, rocks | agricultural/urban | |
Y3 | 1097 | 35°24ʹ54ʺ | 06°39ʹ19ʺ | coarse sand, stone, rocks | agricultural/urban |
Taxonomic richness (S) | Abundance | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Df | Deviance | Resid. Df | Resid. Dev | Pr (> Chi) | Df | Deviance | Resid. | Df Resid. Dev | Pr (> Chi) | |
Null | 773 | 2824.7 | 0.08758 | 773 | 79260 | |||||
Altitude | 1 | 2.92 | 772 | 2821.8 | 0.08758 | 1 | 2687.7 | 772 | 76572 | < 2.2 × 10−16 *** |
Conductivity | 1 | 600.92 | 771 | 2220.8 | < 2.2 × 10−16 *** | 1 | 9284.5 | 771 | 67288 | < 2.2 × 10−16 *** |
NO2− | 1 | 230.92 | 770 | 1989.9 | < 2.2 × 10−16 *** | 1 | 758.1 | 770 | 66772 | < 2.2 × 10−16 *** |
pH | 1 | 33.17 | 769 | 1956.8 | 8.427 × 10−9 *** | 1 | 4227.5 | 769 | 45952 | < 2.2 × 10−16 *** |
PO43− | 1 | 40.01 | 768 | 1916.7 | 2.522 × 10−10 *** | 1 | 655.6 | 768 | 45108 | < 2.2 × 10−16 *** |
H. pressure | 2 | 416.64 | 766 | 1500.1 | < 2.2 × 10−16 *** | 2 | 22932.3 | 766 | 14560 | < 2.2 × 10−16 *** |