Towards harmonized standards for freshwater biodiversity monitoring and biological assessment using benthic macroinvertebrates

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 918, P. 170360 - 170360

Published: Feb. 2, 2024

Monitoring programs at sub-national and national scales lack coordination, harmonization, systematic review analysis continental global scales, thus fail to adequately assess evaluate drivers of biodiversity ecosystem degradation loss large spatial scales. Here we the state art, gaps challenges in freshwater assessment for both biological condition (bioassessment) monitoring ecosystems using benthic macroinvertebrate community. To existence nationally- regionally- (sub-nationally-) accepted protocols that are put practice/used each country, conducted a survey from November 2022 May 2023. Responses 110 respondents based 67 countries were received. Although responses varied their consistency, clearly demonstrated being done levels lakes, rivers artificial waterbodies. Programs bioassessment more widespread, some cases even harmonized among several countries. We identified 20 challenges, which classed into five major categories, these (a) field sampling, (b) sample processing identification, (c) metrics indices, (d) assessment, (e) other challenges. Above all, identify harmonization as one most important gaps, hindering efficient collaboration communication. IUCN SSC Global Freshwater Macroinvertebrate Sampling Protocols Task Force (GLOSAM) means address globally-harmonized protocols.

Language: Английский

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Responses of multimetric indices to disturbance are affected by index construction features

Environmental Reviews, Journal Year: 2024, Volume and Issue: 32(2), P. 278 - 293

Published: Feb. 22, 2024

Multimetric indices (MMIs) are used worldwide to assess the ecological conditions of aquatic and terrestrial ecosystems. Different criteria approaches construct MMIs, resulting in widely different indices. Therefore, scientists, managers, policymakers sometimes question whether such MMIs useful for biomonitoring bioassessment programs. Crucial design issues programs include MMI responsiveness, bioindicator group used, survey design, field sampling methods, level taxonomic resolution, metric selection scoring, reference condition identification. We performed a meta-analysis on development applications analyze response disturbance factors determine degree which construction features influence their responsiveness anthropogenic disturbances. Web Science database find articles that applied an related values environmental stressor, we extracted data from 157 articles. random-effects modeling estimate overall effect responses subgroup analysis extent sizes varied as function features. found had major disturbance. The type, number metrics, ecosystem type were contributed more weakly size variance. general was little affected by group, criteria, or scoring method. These findings have important implications designing programs, including developing improving cost-effective biological indices, because they could enhance application protocols.

Language: Английский

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Rehabilitation of tropical urban streams improves their structure and functioning

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 926, P. 171935 - 171935

Published: March 26, 2024

Language: Английский

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A review of the application of the macroinvertebrate-based multimetric indices (MMIs) for water quality monitoring in lakes

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(29), P. 73098 - 73115

Published: May 18, 2023

Language: Английский

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Biomonitoring for Watershed Protection from a Multiscale Land-Use Perspective

Diversity, Journal Year: 2023, Volume and Issue: 15(5), P. 636 - 636

Published: May 8, 2023

The types and intensification of land use in the watershed affect living organisms aquatic ecosystems differently; this impact will also vary according to temporal spatial scales. Understanding these interactions is crucial design biomonitoring programs detect effect different pollutants freshwater improve management conservation strategies. Therefore, paper qualitatively reviews studies evaluate on multiple scales watersheds. organized into four sections. first section presents systems (streams, rivers, lakes, reservoirs). In second section, we describe characteristics main types. third explain how biomonitoring. Finally, fourth focus planning future prediction discuss models eDNA Our review assist decision-making regarding watersheds guide bioindicators for various diverse worldwide.

Language: Английский

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Bioassessment of multiple stressors in Afrotropical rivers: Evaluating the performance of a macroinvertebrate-based index of biotic integrity, diversity, and regional biotic indices

Frontiers in Environmental Science, Journal Year: 2023, Volume and Issue: 11

Published: March 15, 2023

Many streams and rivers outside conservation areas across the Afrotropics face multiple stressors from land use change, urbanization, excessive water withdrawals. Thus, there is a need to develop cost-effective tools for assessing monitoring ecological changes inform management decisions. Studies utilizing macroinvertebrate communities as indicators of condition in diverse methods, including diversity, richness, biotic multimetric indices. However, some these indices are region- or country-specific, which limits their general regions countries. In this study, we address challenge by testing comparing performance diversity richness (e.g., Shannon-Wiener Simpson), regional (the African Scoring System Version 5 [SASS5], Tanzanian River [TARISS] index developed Ethiopian highlands [ETHbios]), macroinvertebrate-based integrity (M-IBI) Afrotropical with transboundary Mara River, Kenya Tanzania, case study. analyzed habitat quality degradation caused such organic pollution flow alteration corresponding responses communities. We utilized macroinvertebrates data collected 143 sites covering entire gradient river its major tributaries Tanzania. To M-IBI, used 12 metrics that describe community composition, tolerance disturbances (indicator taxa), composition functional feeding groups. Although all were sensitive poor human disturbance river, M-IBI performed better than (SASS5, System, highlands), having higher discriminatory ability site categories according different levels types disturbance. Diversity poorly failed discriminate between stressor gradients river. This study demonstrates evaluating protocols before adoption biomonitoring other countries regions. There an even greater assess taxa inclusion improved discriminators stressors.

Language: Английский

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Patterns in and predictors of stream and river macroinvertebrate genera and fish species richness across the conterminous USA

Knowledge and Management of Aquatic Ecosystems, Journal Year: 2023, Volume and Issue: 424, P. 19 - 19

Published: Jan. 1, 2023

Both native and non-native taxa richness patterns are useful for evaluating areas of greatest conservation concern. To determine those patterns, we analyzed fish macroinvertebrate data obtained at 3475 sites collected by the USEPA's National Rivers Streams Assessment. We also determined which natural anthropogenic variables best explained in regional richness. Macroinvertebrate increased with number sampled per region. Therefore, residual from deviation observed predicted given Regional markedly exceeded average site both macroinvertebrates fish. Predictors macroinvertebrate-genus fish-species residual-regional differed. Air temperature was an important predictor cases but positive negative macroinvertebrates. land use were significant predictors This study is first to mean aquatic across conterminous USA, key drivers Thus, it offers insights into USA biodiversity hotspots.

Language: Английский

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Estimating biotic integrity to capture existence value of freshwater ecosystems

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 120(18)

Published: April 24, 2023

The US Environmental Protection Agency (EPA) uses a water quality index (WQI) to estimate benefits of proposed Clean Water Act regulations. WQI is relevant human use value, such as recreation, but may not fully capture aspects nonuse existence value. Here, we identify an biological integrity supplement the in forthcoming national stated preference survey that seeks value streams and lakes more accurately within conterminous United States (CONUS). We used literature focus group research evaluate aquatic indices regularly reported by EPA’s National Aquatic Resource Surveys. chose quantifies loss biodiversity observed-to-expected (O/E) ratio taxonomic composition because participants easily understood its meaning environmental changes would result incremental improvements. However, available datasets this do provide spatial coverage account for how conditions near respondents affect their willingness pay improvement. Therefore, modeled interpolated values from sampled sites 1.1 million stream segments 297,071 across CONUS required coverage. models explained 13 36% variation O/E scores demonstrate modeling can data at density estimation. close discussing future work improve performance link condition with habitat will allow us forecast resulting regulatory options.

Language: Английский

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Ecological river health assessments, based on fish ordination analysis of ecological indicator entities and the biological integrity metrics, responding to the chemical water pollution

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(19), P. 28306 - 28320

Published: March 27, 2024

Abstract Evaluation of the ecological health rivers requires a focused examination how biological indicators respond to chemical stressors offer key insights for effective conservation strategies. We examined influence on aquatic ecosystems by analyzing various entities and biotic integrity metrics fish communities. A nonmetric multidimensional scaling (NMDS) approach was applied determine scores based 19 (FEs) fish-based multi-metric index (mIBI-F). The composition communities in reference clusters differed from disturbed due instream stressors. These stressors, including high levels nutrients, organic matter, ionic/suspended solids, were linked variation indicator FEs, whose guild identities closely associated with degradation. FEs (abundance weighted) mIBI-F first NMDS axis (NMDS1) significantly ( p < 0.001), such as total phosphorus R 2 = 0.67 0.47), electrical conductivity 0.59 0.49), chlorophyll- 0.48 0.25). NMDS1 showed better accuracy than conventional score capturing river status determined water pollution. Our study suggests that ordination approach, these systems reflected health.

Language: Английский

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Reservoir ecological health assessment Methods: A systematic review

Ecological Indicators, Journal Year: 2025, Volume and Issue: 171, P. 113130 - 113130

Published: Jan. 23, 2025

Language: Английский

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