Effects Of Water Hyacinth (eichhornia Crassipes) On Water Quality And Composition And Abundance Of Phyto- And Zooplankton In The Littoral Region Of Koka Reservoir Ethiopia

Invasion of aquatic habitats by non-native species is a global environmental challenge with serious ecological, social and economic consequences demanding urgent action. Water hyacinth, Eichhornia crassipes (Martius) Solms, is one of the world’s most rampant invasive aquatic plants recognized as one of the top 10 worst weeds in the world. Its appearance in Koka Reservoir was reported in 1965 and has become a threat to the aquatic ecosystem. Although several limnological studies have been made on the reservoir, the effects of water hyacinth on water quality and plankton have not been addressed. Samples were collected monthly from three weed-infested and three non-infested sites from March to July 2018 to assess its effect on water quality, plankton composition and abundance in the reservoir. Potential toxicity of water hyacinth extract was also investigated using white albino mice. During this investigation, the differences between weed-infested and non-infested sites in DO, NO3-N, NO2-N, SRP, TP, NH3, TSS, Turbidity, Silica and Secchi disk depth were significant (P

Get Full Work

Report copyright infringement or plagiarism