Population Aspects of Fishes in Geba and Sor Rivers, White Nile System in Ethiopia, East Africa

Table 2

Summary of the percent number (), percent weight (), and % index of relative abundance (% IRI) of fish species of Geba and Sor Rivers. Total number of specimens () = 348.

Species			% IRI
Labeobarbus intermedius	47.13	48.62	60.72
Labeo cylindricus	21.84	15.15	14.66
Labeobarbus nedgia	12.36	15.94	16.83
Labeo forskalii	12.36	12.96	6.02
Oreochromis niloticus	2.87	1.25	0.49
Bagrus docmak	2.01	5.54	1.20
Raiamas senegalensis	0.86	0.24	0.043
Garra sp.	0.29	0.18	0.018
Mormyrus hasselquistii	0.29	0.12	0.016