Abstract:
In current study, the relationship between phosphate and nitrite concentration levels
and the distribution of benthic macro-invertebrates in river Sosiani, Eldoret was
investigated. The concentration of phosphate and nitrite and the number of macroinvertebrates
was established by spectrophotometric (spectronic21D and the Dip-net)
methods respectively. The study showed that the concentration of both phosphate and
nitrite were higher than the threshold levels and that the macro-invertebrate species were
fewer in the more polluted regions of the river. Thus, phosphate, and nitrite concentration
levels plays a role in the distribution of macro-invertebrates.
