A review on freshwater biomonitoring with benthic invertebrates in Ethiopia

Mezgebu, Amare

doi:10.1016/j.indic.2022.100174

Cited by 6 publications

(4 citation statements)

References 24 publications

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“…The range of possible scores for the Lao MMI was determined by the minimum and maximum scores from <13 to ≥53. The range of the Lao MMI was then quadrisected in order to establish the five classes of water quality assessment; excellent condition (score ≥ 53), which pertained to the desired reference biological condition with a low degree of alteration in biological integrity; good (49)(50)(51)(52) with good water quality and slightly disturbed biological integrity; fair (25-48) with fair quality of water and moderately disturbed biological integrity; poor (13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24), with poor quality of water and highly disturbed biological integrity, and impaired condition (score < 13) with very poor water quality and severe impairment of biological integrity (Table 7).…”

Section: Development Of Lao MMImentioning

confidence: 99%

“…However, these methods are insufficient in assessing the consequences of certain human disturbances, as they only reflect the water quality at the time and place of sampling and do not directly measure the biological response to pollution [11,12]. Therefore, physicochemical methods cannot detect biogeochemical changes that occur in aquatic ecosystems over an extended period of time [13]. On the other hand, biomonitoring methods can reflect the consequences of changes in water quality and the biological response to human disturbance and pollution, both in the past and present [12,[14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…The use of biological indices for biomonitoring the water quality in freshwater ecosystems has been established for a significant amount of time [11,[13][14][15][16][17]. However, there are limitations when using a single index for water quality monitoring [32].…”

Section: Introductionmentioning

confidence: 99%

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Benthic Macroinvertebrate Communities in Wadeable Rivers and Streams of Lao PDR as a Useful Tool for Biomonitoring Water Quality: A Multimetric Index Approach

Sripanya

Vongsombath

Vannachak

et al. 2023

Water

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Lao PDR, a landlocked country in the lower Mekong River basin of Southeast Asia, has been considered a global biodiversity hotspot with a high level of biological endemism. In recent years, urban development and industrialization have affected the water quality of freshwater ecosystems in Lao PDR. However, the assessment of water quality in the country is primarily focused on a physicochemical method, while the application of a multimetric index (MMI) approach using benthic macroinvertebrates for biomonitoring in rivers and streams has not been established. MMI, based on benthic macroinvertebrates, is a biomonitoring tool that considers the effects of multiple anthropogenic impacts on benthic macroinvertebrate metrics associated with their biological attributes (e.g., taxa richness, composition, pollution tolerance, habits, and functional feeding) and aggregates individual metrics into a single value for assessing the water quality and health conditions of aquatic ecosystems. Here, we developed an MMI based on macroinvertebrate communities collected during 2016–2018 from 10 localities of streams and wadeable rivers in Lao PDR. Of the 54 potential metrics tested, 35 candidate macroinvertebrate metrics representing richness, composition, trophic structure, habit, and tolerance to pollution were selected, while 19 metrics were excluded. Of the 35-candidate metrics, a total of 11 core metrics (Total taxa, EPT taxa, Ephemeroptera taxa, %Diptera, %Plecoptera, %Tolerant, Beck’s biotic index, %Intolerant, Filterers taxa, %Sprawlers, and %Burrowers) were finally selected for the development of MMI based on their sensitivity, redundancy, and easy-to-apply tool for the biomonitoring program. These metrics can be used to distinguish the reference (seven sites) from stressed conditions (seven sites). In addition, the final MMI scores classified 40 sampling sites into four classes of water quality, including excellent (25%), good (10%), fair (60%), and poor (5%), which the conventional physicochemical method could not clearly distinguish. The Lao MMI developed in this study is an effective tool for evaluating the water conditions of sites affected by human activities, particularly agricultural areas, and, thus, is appropriate for use in future studies for assessing the ecological conditions of rivers and streams in the Mekong region.

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Section: Development Of Lao MMImentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Benthic Macroinvertebrate Communities in Wadeable Rivers and Streams of Lao PDR as a Useful Tool for Biomonitoring Water Quality: A Multimetric Index Approach

Sripanya

Vongsombath

Vannachak

et al. 2023

Water

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“…Monitoring of biological indicators is very important and useful for detecting impacts from anthropogenic pressures on aquatic ecosystems [1]. Indeed, the use of bioindicators provide better information than physico-chemical variables on ecosystem conditions, as organisms used in biomonitoring assessment can either integrate the biogeochemical changes within the ecosystem, or respond to several stresses over a long period of time [2]. To assess the potential toxic effects arising from environmental exposure to chemicals, information on their bioaccumulation in biota is essential, since they can provide information on their bioavailability.…”

Section: Introductionmentioning

confidence: 99%

Before-During-After Biomonitoring Assessment for a Pipeline Construction in a Coastal Lagoon in the Northern Adriatic Sea (Italy)

et al. 2022

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During 2006–2008, a pipeline was buried in Vallona lagoon in the Northern Adriatic Sea (Italy). A Before-During-After environmental monitoring programme was scheduled to monitor possible alterations. Bioaccumulation of metal(loid)s, BTs (butyltins) and HMW-PAHs (High Molecular Weight Polycyclic Aromatic Hydrocarbons), and biological responses (Condition index, air Survival—LT50, Acetylcholinesterase, Micronuclei—MN, acyl-CoA oxidase, catalase, malondialdehyde—MDA, and the total oxyradical scavenging capacity—TOSCA) were investigated in Manila clams (Ruditapes philippinarum) from November 2005 to June 2015. In opera (IO) results showed higher levels of HMW-PAHs (73 ± 13 ng/g), BTs (90 ± 38 ng Sn/g) and increasing levels of Pb (6.7 ± 0.7 mg/kg) and Zn (73.6 ± 6.08 mg/kg) probably linked to works. Other contaminant alterations, especially metal(loid)s, before (AO) and after (PO) the burial, were attributed to a general condition of the area and mostly unrelated to works. In addition, LT50, MN and TOSCA showed alterations, probably due to hotspots occurring in IO. TOSCA and MDA increases, right after the burial, were considered delayed responses of IO, whilst other biological responses detected later were connected to the general condition of the area. Comparisons between results of Principal Component Analyses (PCAs) highlighted partial overlapping of AO and IO, whilst PO differed only for contaminants. Visual correlations between PCAs highlighted the biomarkers’ latter response.

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Assessing the ecological health of the upper and middle Awash River, Ethiopia, using benthic macroinvertebrates community structure and selected environmental variables

Muluye,

Mengistou,

Fetahi

2023

Environ Monit Assess

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A review on freshwater biomonitoring with benthic invertebrates in Ethiopia

Cited by 6 publications

References 24 publications

Benthic Macroinvertebrate Communities in Wadeable Rivers and Streams of Lao PDR as a Useful Tool for Biomonitoring Water Quality: A Multimetric Index Approach

Benthic Macroinvertebrate Communities in Wadeable Rivers and Streams of Lao PDR as a Useful Tool for Biomonitoring Water Quality: A Multimetric Index Approach

Before-During-After Biomonitoring Assessment for a Pipeline Construction in a Coastal Lagoon in the Northern Adriatic Sea (Italy)

Assessing the ecological health of the upper and middle Awash River, Ethiopia, using benthic macroinvertebrates community structure and selected environmental variables

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