Occurrence, abundance and distribution of benthic macroinvertebrates in the Nyando River catchment, Kenya
View/ Open
Date
2015Author
Abong'o, DA
Wandiga, SO
Jumba, IO
Brink, PJ Van den
Naziriwo, BB
Madadi, VO
Wafula, GA
Nkedi-Kizza, P
Kylin, H
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
A baseline study was conducted of the occurrence of macroinvertebrates at 26 sites in the Nyando River catchment
in 2005–2006. A total of 13 orders and 16 families of Arthropoda, Mollusca, Platyhelminthes and Annelida were
collected, with the order Ephemeroptera being most abundant in the up- and mid-stream reaches, followed by
Hemiptera and Plecoptera respectively. The downstream sections of the river were dominated by Hirudinea and
tubificids, as the water quality deteriorated mainly due to local land use, raw sewage effluent discharge and
annual floods. Insects and annelids were the main invertebrates found and the extent of pollution increased from
mid-section (Site 15) downwards as the river flowed into the Winam Gulf. Stringent management measures are
required to safeguard the environment and ecosystems of Lake Victoria.
URI
https://www.tandfonline.com/doi/pdf/10.2989/16085914.2015.1113397http://erepository.uonbi.ac.ke/handle/11295/155397
Citation
: DA Abong'o, SO Wandiga, IO Jumba, PJ Van den Brink, BB Naziriwo, VO Madadi, GA Wafula, P Nkedi-Kizza & H Kylin (2015) Occurrence, abundance and distribution of benthic macroinvertebrates in the Nyando River catchment, Kenya, African Journal of Aquatic Science, 40:4, 373-392, DOI: 10.2989/16085914.2015.1113397Publisher
University of Nairobi
Rights
Attribution-NonCommercial-NoDerivs 3.0 United StatesUsage Rights
http://creativecommons.org/licenses/by-nc-nd/3.0/us/Collections
The following license files are associated with this item: