A Preliminary Study on Abundance and Diversity of Aquatic Macro Invertebrates of Nzovwe Stream, in Mbeya, Tanzania

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dc.contributor.authorOjija, Fredrick
dc.contributor.authorKavishe, Regan
dc.date.accessioned2025-08-07T09:09:10Z
dc.date.available2025-08-07T09:09:10Z
dc.date.issued2016
dc.descriptionThis research article was published by Research Publish Journals in 2016
dc.description.abstractThe purpose of this current study was to determine the diversity, species richness, dominance and evenness of macroinvertebrates fauna found in Nzovwe stream. The study was carried out from 02 November to 28 December 2015. A total of 584 aquatic macroinvertebrate from 7 orders and 16 species were recoded. They belonged to 22 families. This study shows that Odonata (35.96%) was the most dominant order according to total number of individuals, followed by Hemiptera (25.514%), Coleoptera (19.007 %), Diptera (12.842%), Plecoptera (5.137%), Gastropoda (1.027%) and Ephemeroptera (1.027%). The most abundant species were Dragonflies (27.226%), Water striders (13.185%), and Creeping water bugs (10.274%), whereas the least abundant species were Giant water bugs and Backswimmers (0.514%). The Shannon-Wiener Index diversity and Evenness index (Pielou’s index) was higher in order Coleoptera (1.33) and Diptera (0.940) respectively. Ephemeroptera, Plecoptera and Gastropoda (Shannon’s, H’ = 0.00) were the lowest. Simpson’s Reciprocal Index diversity was highest in order Coleoptera (3.400) while Ephemeroptera, Plecoptera and Gastropoda (1/D = 1.000) were the lowest. The species richness of macroinvertebrates was calculated by using Margalef’s Index. Moreover, it was found that the stream is poorly managed and threatened by pollution from domestic wastes.
dc.description.sponsorshipPrivate
dc.identifier.issn2348-3148
dc.identifier.issn2348-313X
dc.identifier.urihttps://repository.must.ac.tz/handle/123456789/415
dc.language.isoen
dc.publisherResearch Publish Journals
dc.titleA Preliminary Study on Abundance and Diversity of Aquatic Macro Invertebrates of Nzovwe Stream, in Mbeya, Tanzania
dc.typeArticle
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