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      Developing and applying a macroinvertebrate‐based multimetric index for urban rivers in the Niger Delta, Nigeria

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          Abstract

          Urban pollution of riverine ecosystem is a serious concern in the Niger Delta region of Nigeria. No biomonitoring tool exists for the routine monitoring of effects of urban pollution on riverine systems within the region. Therefore, the aim of this study was to develop and apply a macroinvertebrate‐based multimetric index for assessing water quality condition of impacted urban river systems in the Niger Delta region of Nigeria. Macroinvertebrate and physicochemical samples were collected from 11 stations in eight river systems. Based on the physicochemical variables, the stations were categorized into three impact categories namely least impacted stations (LIS), moderately impacted stations (MIS) and heavily impacted stations (HIS). Seventy‐seven (77) candidate metrics were tested and only five: Hemiptera abundance, %Coleoptera + Hemiptera, %Chironomidae + Oligochaeta, Evenness index and Logarithm of relative abundance of very large body size (>40–80 mm) were retained and integrated into the final Niger Delta urban multimetric index (MINDU). The validation dataset showed a correspondence of 83.3% between the index result and the physicochemically‐based classification for the LIS and a 75% correspondence for the MIS. A performance of 22.2% was recorded for the HIS. The newly developed MINDU proved useful as a biomonitoring tool in the Niger Delta region of Nigeria and can thus be used by environmental managers and government officials for routine monitoring of rivers and streams subjected to urban pollution.

          Abstract

          Macroinvertebrate‐based urban multimetric index was developed for Niger Delta region of Nigeria. The newly developed multimetric index proved useful for assessing ecological health of river systems subjected to urban pollution.

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          Species traits in relation to a habitat templet for river systems

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            A Framework for Biological Criteria for Florida Streams Using Benthic Macroinvertebrates

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              The South African Scoring System (SASS) Version 5 Rapid Bioassessment Method for Rivers

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                Author and article information

                Contributors
                ovieedes@gmail.com
                nelskaro@yahoo.com
                Journal
                Ecol Evol
                Ecol Evol
                10.1002/(ISSN)2045-7758
                ECE3
                Ecology and Evolution
                John Wiley and Sons Inc. (Hoboken )
                2045-7758
                29 October 2019
                November 2019
                : 9
                : 22 ( doiID: 10.1002/ece3.v9.22 )
                : 12869-12885
                Affiliations
                [ 1 ] Unilever Centre for Environmental Water Quality Institute for Water Research Rhodes University Grahamstown South Africa
                [ 2 ] Department of Animal Biology (Applied Hydrobiology Unit) Federal University of Technology Minna Nigeria
                Author notes
                [*] [* ] Correspondence

                Augustine O. Edegbene and Oghenekaro N. Odume, Unilever Centre for Environmental Water Quality, Institute for Water Research, Rhodes University, P.O. Box 94, Grahamstown 6140, South Africa.

                Emails: ovieedes@ 123456gmail.com (A.E.) and nelskaro@ 123456yahoo.com (O.O.)

                Author information
                https://orcid.org/0000-0003-4032-3923
                https://orcid.org/0000-0001-5220-3254
                Article
                ECE35769
                10.1002/ece3.5769
                6875576
                d7620c9b-0fbd-4545-b946-00e9c074e8e6
                © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.

                This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

                History
                : 25 July 2019
                : 03 October 2019
                : 04 October 2019
                Page count
                Figures: 7, Tables: 6, Pages: 17, Words: 11388
                Funding
                Funded by: South African National Research Foundation and The World Academy of Sciences (NRF‐TWAS)
                Award ID: 110894
                Categories
                Original Research
                Original Research
                Custom metadata
                2.0
                November 2019
                Converter:WILEY_ML3GV2_TO_JATSPMC version:5.7.2 mode:remove_FC converted:25.11.2019

                Evolutionary Biology
                %chironomidae + oligochaeta,biomonitoring,hemiptera abundance,impact categories,mindu,niger delta and water quality

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