Natural substrate | ||||||
Average dissimilarity: 42.22 | ||||||
Control | Impacted | |||||
Species | Av.Abund | Av.Abund | Av.Diss | Diss/SD | Contrib% | Cum.% |
Amphora pediculus (Kützing) Grunow | 4.85 | 3.87 | 1.84 | 1.34 | 4.37 | 4.37 |
Nitzschia inconspicua Grunow | 3.1 | 2.05 | 1.61 | 1.35 | 3.81 | 8.18 |
Navicula capitatoradiata Germain | 1.93 | 0.98 | 1.43 | 1.28 | 3.39 | 11.57 |
Reimeria uniseriata Sala, Guerrero & Ferrario | 1.64 | 1.37 | 1.14 | 1.26 | 2.69 | 14.26 |
Cocconeis placentula var. trilineata (Peragallo & Héribaud) Cleve | 0.81 | 1.8 | 1.07 | 1.09 | 2.54 | 16.8 |
Amphora copulata (Kützing) Schoeman & Archibald | 2.18 | 2.3 | 1.03 | 1.45 | 2.45 | 19.25 |
Navicula tripunctata (O. F. Müller) Bory | 0.63 | 1.32 | 0.97 | 1.29 | 2.3 | 21.55 |
Amphora indistincta Levkov | 1.49 | 2.03 | 0.91 | 1.35 | 2.16 | 23.71 |
Melosira varians C. Agardh | 1.56 | 1.35 | 0.89 | 1.42 | 2.1 | 25.81 |
Nitzschia dissipata (Kützing) Grunow | 1.12 | 1.08 | 0.87 | 1.34 | 2.07 | 27.88 |
Cocconeis placentula var. lineata (Ehrenberg) Van Heurck | 1.63 | 2.25 | 0.87 | 1.44 | 2.06 | 29.94 |
Navicula antonii Lange-Bertalot | 1.76 | 1.78 | 0.86 | 1.4 | 2.04 | 31.99 |
Achnanthidium minutissimum (Kützing) Czarnecki | 1.2 | 0.78 | 0.83 | 1.39 | 1.97 | 33.95 |
Nitzschia palea (Kützing) W. Smith | 1.24 | 0.93 | 0.83 | 1.37 | 1.96 | 35.91 |
Rhoicosphenia abbreviata (C. Agardh) Lange-Bertalot | 1.03 | 1.43 | 0.82 | 1.33 | 1.94 | 37.85 |
Gomphonema parvulum (Kützing) Kützing | 1.04 | 0.56 | 0.81 | 1.13 | 1.91 | 39.76 |
Gomphonema rhombicum M. Schmidt | 0.79 | 1.17 | 0.8 | 1.3 | 1.89 | 41.66 |
Cocconeis pediculus Ehrenberg | 0.73 | 1.3 | 0.8 | 1.23 | 1.89 | 43.55 |
Staurosira construens var. venter (Ehrenberg) P. B. Hamilton | 0.86 | 0.26 | 0.71 | 1.35 | 1.69 | 45.24 |
Pleurosira laevis (Ehrenberg) Compère | 0.33 | 0.76 | 0.7 | 1.8 | 1.66 | 46.9 |
Cocconeis placentula Ehrenberg var. euglypta (Ehrenberg) Grunow | 1.43 | 1.8 | 0.7 | 1.3 | 1.65 | 48.55 |
Navicula veneta Kützing | 0.54 | 0.49 | 0.69 | 1.1 | 1.64 | 50.18 |