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Research Paper | May 1, 2013

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The Association between benthic invertebrates and aquatic macrophytes in a tropical lake, Nguru Lake: a preliminary survey

M. M. Abubakar, M. L. Balarabe, J. Auta

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J. Bio. Env. Sci.3(5), 36-40, May 2013

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Abstract

This study was carried out with the purpose of determining which benthic invertebrate fauna are associated with aquatic macrophytes in Nguru Lake. Water and sediment samples were collected over a twelve month period between May 2006 and April 2007.The samples were analysed using standard methods. Seven species of benthic macroinvertebrates belonging to classes Mollusca, Insecta, Annelida and Nematoda were recorded. Distribution of the various physico-chemical parameters was also determined. The density of benthic community recorded from stations infested by aquatic macrophytes particularly Typha sp. are significantly less than those recorded from stations with no or sparse aquatic macrophytes (p<0.01). This benthic macroinvertebrate community observed in the present study was different from that found in Nguru Lake in 1997. And the diversity of taxa was also generally low.

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The Association between benthic invertebrates and aquatic macrophytes in a tropical lake, Nguru Lake: a preliminary survey

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