Genus-level, trait-based multimetric diatom indices for assessing the ecological condition of rivers and streams across the conterminous United States

Riato, Luisa; Hill, Ryan A.; Herlihy, Alan T.; Peck, David V.; Kaufmann, Philip R.; Stoddard, John L.; Paulsen, Steven G.

doi:10.1016/j.ecolind.2022.109131

Cited by 15 publications

(3 citation statements)

References 74 publications

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“…The number of genera has doubled in recent years, and the ecological preferences of each are better defined. Today, diatom indices constructed from a genus-level taxonomy can be effective for large-scale assessments (Riato et al, 2022). Many studies are finding that the use of genus-level diatoms produce a similar or greater diatom-environment relationship than at the species level (Kilroy et al, 2017).…”

Section: Application Of Molecular Methods For Biomonitoring?mentioning

confidence: 99%

Environmental Drivers of Genetic Variability in common Diatom Genera: Implications for Shallow Lake Biomonitoring

Borrego-Ramos

Rimet

Bécares³

et al. 2023

Preprint

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Diatoms are microalgae, known to present several characteristics that make them excellent bioindicators. In this study, we analyzed the epiphytic diatom communities of shallow lakes, with the aim of exploring the genetic variability explained by physical, chemical or geographical variables. We selected 77 lakes within the Spanish part of the Duero River Basin characterized by wide chemical variability. In each lake, physical parameters were measured in situ and water samples were taken to determine nutrient levels in the laboratory. Diatom communities were collected and identified by both microscopy and DNA-metabarcoding, amplifying a genetic barcode of rbcL gene. We analyzed the phylogenetic signal for several environmental parameters at the genus level for the three most representative genera of these lakes. Our results indicate significant phylogenetic signals that differ from a genus to another. Processes related to spatial scales appear to be the main predictors controlling the genetic diversity of diatom communities in these ponds, with genetic variants deffering among geographical areas for a given species. These molecular studies confirm the enormous diversity present in the diatom communities that inhabit these ecosystems, but further research is needed to apply diatom-based techniques in shallow lakes monitoring or conservation programs. Our results reinforce the view that considering not only morphological but also molecular and ecological characters is necessary to describe new diatom species, especially given the high number of species described each year.

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Section: Application Of Molecular Methods For Biomonitoring?mentioning

confidence: 99%

Environmental Drivers of Genetic Variability in common Diatom Genera: Implications for Shallow Lake Biomonitoring

Borrego-Ramos

Rimet

Bécares³

et al. 2023

Preprint

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“…The use of MMI as a rapid lake biomonitoring tool needs to be adopted for sustainable applications in lake ecosystem management and as an integrated approach to monitoring human-induced stress especially in developing countries where there is a paucity of information.2008; Reaches et al 2021). The use of MMI is globally recognized as a potential approach for water quality monitoring (Ruaro et al 2020;Riato et al 2022). Indeed, MMIs provide both temporal and spatial trends of water quality and can be used in identifying effective management strategies for the conservation and restoration of aquatic ecosystems (…”

mentioning

confidence: 99%

“…2008; Reaches et al 2021). The use of MMI is globally recognized as a potential approach for water quality monitoring (Ruaro et al 2020;Riato et al 2022). Indeed, MMIs provide both temporal and spatial trends of water quality and can be used in identifying effective management strategies for the conservation and restoration of aquatic ecosystems (…”

mentioning

confidence: 99%

A review of the application of the Macroinvertebrate-based Multimetric Index (MMI) for water quality monitoring in lakes

Ndatimana

Nantege

Arimoro

2022

Preprint

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The increasing stress on lake ecosystems is affecting their functioning such as providing goods and services to inhabiting organisms and riparian communities. Monitoring of water quality is important for sustainable management and restoration of lake ecosystems. However, the costs associated with traditional approaches have become prohibitive while not giving reliable early warning signals on resource conditions. Therefore, the current shift in the use of bioindicators and multimetric indices (MMIs) in the monitoring of water quality is currently gaining global recognition with more emphasis on its application in lotic ecosystems. Therefore, this paper provides an elaborated insight into the application of macroinvertebrate-based MMIs in lentic ecosystems and the successes achieved so far. The various metrics and indices, the development strategies, application challenges, the use of macroinvertebrates as bioindicators, and the future projection of enhancing MMI usage in lentic environment monitoring particularly in developing countries are extensively covered. The use of MMI as a rapid lake biomonitoring tool needs to be adopted for sustainable applications in lake ecosystem management and as an integrated approach to monitoring human-induced stress especially in developing countries where there is a paucity of information.

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Ecosystem services provided by freshwater and marine diatoms

et al. 2022

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Diatoms, a unique group of algae colonising a wide range of aquatic habitats and contributing to human well-being in many ways. We list and summarise these services using the classification of the Millennium Ecosystem Assessment (MEA), i.e. supporting, regulating, provisioning and cultural services. The most relevant supporting services are photosynthesis and primary production, as well as sediment formation. They also play a key role in nutrient cycling and habitat provisioning and serve as food for many organisms. Regulating services as oxygen production, climate control or sediment stabilisation are difficult to discuss without diatoms. Many provisioning services, directly used by humans, can be obtained from diatoms. These are tangible products such as medicines and immunostimulants but direct technologies such as wastewater treatment, micro- and nanotechnologies were also developed using diatoms. Studying of the past, present, and future linked to diatoms as a tool for palaeolimnology, ecological status assessment of waters and climate modelling is essential. Finally, the impressive morphology and ornaments of diatom frustules make them one of the most spectacular microorganisms, inspiring artists or providing a number of educational opportunities. Therefore, protecting aquatic habitats they inhabit is not simply a nature conservation issue but the key for human well-being in the future.

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Genus-level, trait-based multimetric diatom indices for assessing the ecological condition of rivers and streams across the conterminous United States

Cited by 15 publications

References 74 publications

Environmental Drivers of Genetic Variability in common Diatom Genera: Implications for Shallow Lake Biomonitoring

Environmental Drivers of Genetic Variability in common Diatom Genera: Implications for Shallow Lake Biomonitoring

A review of the application of the Macroinvertebrate-based Multimetric Index (MMI) for water quality monitoring in lakes

Ecosystem services provided by freshwater and marine diatoms

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