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Composition and seasonality of benthic invertebrates, and drift in the Naro Moru River, Kenya
Mathooko, J.M.; Mavuti, K.M. (1992). Composition and seasonality of benthic invertebrates, and drift in the Naro Moru River, Kenya, in: Mavuti, K.M. et al. (Ed.) (1993). Recent Advances in Hydrobiology and Fisheries in Eastern Africa: Proceedings of the 1st Symposium of Hydrobiological Society of East Africa, on State of Knowledge and Recent Research Advances in Freshwater and Marine Biology in Eastern Africa, held in Nairobi, Kenya, 13-16 December 1988. pp. 47-56
In: Mavuti, K.M.; Jaccarini, V.; Martens, E.E. (Ed.) (1993). Recent Advances in Hydrobiology and Fisheries in Eastern Africa: Proceedings of the 1st Symposium of Hydrobiological Society of East Africa, on State of Knowledge and Recent Research Advances in Freshwater and Marine Biology in Eastern Africa, held in Nairobi, Kenya, 13-16 December 1988. Kluwer Academic: Dordrecht. IX, 110 pp., more
In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158, more
Peer reviewed article  

Available in  Authors 
Document type: Conference paper

Keyword
    Fresh water

Authors  Top 
  • Mathooko, J.M.
  • Mavuti, K.M.

Abstract
    A survey was carried out to establish the nature and composition of the benthos along the Naro Moru, a tropical river in central Kenya using artificial substrate baskets, from November 1986 to October 1987. A clear longitudinal zonation existed for Diptera and Ephemeroptera which were the major benthic taxa. Maximum colonization took place after ten days of exposure. Seasonal variations in abundance were also observed. All taxa collected from the bottom samples were also collected in the drift samples, but the percentage composition of the benthos showed variations with that of the drift. Simulium sp. dominated the benthos whilst Baetis ssp. dominated the drift. There was a positive correlation between drift rate and benthic fauna density.

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