Occurrence, abundance and distribution of benthic macroinvertebrates in the Nyando River catchment, Kenya

Funding Agencies|International Foundation for Science (IFS) [W3982-1]; Higher Education Loans Board (HELB), Kenya
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.

NATURVETENSKAP Geovetenskap och miljövetenskap hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences hsv//eng
biodiversity index; environmental monitoring; Lake Victoria Basin; species distribution; water quality; Winam Gulf

Wandiga, S. O.University of Nairobi, Kenya (författare)
Jumba, I. O.University of Nairobi, Kenya (författare)
Van den Brink, P. J.University of Wageningen and Research Centre, Netherlands (författare)
Naziriwo, B. B.Makerere University, Uganda (författare)
Madadi, V. O.University of Nairobi, Kenya (författare)
Wafula, G. A.University of Nairobi, Kenya (författare)
Nkedi-Kizza, P.University of Florida, FL USA (författare)
Kylin, HenrikLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten,North West University, South Africa(Swepub:liu)henky02 (författare)
University of Nairobi, KenyaUniversity of Wageningen and Research Centre, Netherlands (creator_code:org_t)

Ingår i:African Journal of Aquatic Science: NATL INQUIRY SERVICES CENTRE PTY LTD40:4, s. 373-3921608-59141727-9364

Av författaren/redakt...: Abongo, D. A.; Wandiga, S. O.; Jumba, I. O.; Van den Brink, P ...; Naziriwo, B. B.; Madadi, V. O.; visa fler...; Wafula, G. A.; Nkedi-Kizza, P.; Kylin, Henrik; visa färre...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.