Table 2 Total fish abundance recorded from Gereb Tsedo and Elala streams (habitat wise), Mekelle city, Ethiopia (S, species richness, the total number of species; H’, Shannon-Weaver diversity index; J, measure of evenness)
Fish species | Pool | Run | Riffle | Total | % relative species abundance |
|---|---|---|---|---|---|
G. aethiopica | 41 | 2 | 0 | 43 | 0.7 |
G. blanfordii | 2464 | 1772 | 573 | 4809 | 73.4 |
G. dembecha | 444 | 197 | 172 | 813 | 12.4 |
G. ignestii | 493 | 341 | 55 | 889 | 13.5 |
Total | 3442 | 2312 | 800 | 6554 | 100 |
% relative abundance | 53 | 35 | 12 | 100 | – |
Richness (S) | 4 | 4 | 3 | – | – |
Shannon (H’) | 0.835 | 0.702 | 0.752 | – | – |
Evenness (J) | 0.602 | 0.507 | 0.685 | – | – |