Modern Trends in Diatom Identification
Fundamentals and Applications
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Article
Open AccessExploring epipelic diatom species composition across wetlands conductivity gradients in southern Spain
The objective of this study was to explore the environmental factors having the greatest influence on the distribution and abundance of epipelic diatom species in different wetlands in southern Spain. We previ...
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Article
Development of a new Diatom-Based Index (BDIAR) for biomonitoring Mediterranean streams using data from Algerian Rivers
For the first time, we propose a diatom-based biomonitoring index (BDIAR) for Algerian Rivers. BDIAR is based on water conductivity and diatom autecological profiles. Our study was conducted along the Coastal ...
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Article
Open AccessWhat do diatom indices indicate? Modeling the specific pollution sensitivity index
Diatoms are commonly used in environmental assessments to detect pollution and eutrophication. The specific pollution sensitivity index (SPI) is one of the most frequently used indices, which assigns scores to...
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Chapter and Conference Paper
Biodeposition of Diatoms in Recycled Aggregates
This work studies the behaviour of diatoms in artificial culture environments and analyses the biodeposition of diatom frustules in different sizes of mixed recycled aggregates. In order to be able to use this...
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Article
Determinant factors of diatom assemblage’s distribution along the Coastal Central Constantine (Northeastern Algeria)
The present study is based on the identification of benthic diatoms sampled along the Coastal Central Constantine in northeastern of Algeria. Our work aims to address relationships between environmental variab...
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Article
A new Trophic Diatom Index for Tropical Reservoirs (TDIR)
We developed the Trophic Diatom Index for Reservoirs (TDIR), the first index proposal for water trophic quality assessment of tropical reservoirs in Brazil. Furthermore, we applied four borrowed diatom indices...
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Book
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Chapter
Overview: Antecedents, Motivation and Necessity
This chapter introduces the antecedents, motivation, and necessity of the use of automatic identification methods in diatom taxonomy. Expert biologists have a repetitive and laborious identification mission. T...
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Chapter
Diatom Taxonomy and Identification Keys
Correct identification of diatom taxa is indispensable for diatom-based water quality studies, as well as for biotechnological applications. Biological applications of taxonomy include the identification of ta...
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Chapter
Water Quality Assessment
Diatom metrics methods are becoming important tools for the assessment of environmental conditions in aquatic systems. Diatoms have several advantages as bioindicators: their ubiquitous distribution across wor...
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Chapter
Naturally and Environmentally Driven Variations in Diatom Morphology: Implications for Diatom-Based Assessment of Water Quality
Diatom identification must consider the large variability in both morphological and morphometric features, characteristic of this group of microorganisms. This chapter describes variations in shape/size observ...
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Chapter and Conference Paper
Deep Learning Versus Classic Methods for Multi-taxon Diatom Segmentation
Diatom identification is a crucial process to estimate water quality, which is essential in biological studies. This process can be automated with machine learning algorithms. For this purpose, a dataset with ...
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Article
Exploring the effects of acid mine drainage on diatom teratology using geometric morphometry
Metal pollution of aquatic habitats is a major and persistent environmental problem. Acid mine drainage (AMD) affects lotic systems in numerous and interactive ways. In the present work, a mining area (Roșia M...
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Article
Modelling Primary Producers in Some Shallow Spanish Lakes
Increased nutrient loading is regarded as one of the major causes of a shift from macrophyte to phytoplankton dominance in shallow lakes. This work investigates the responses of phytoplankton and epiphyton bio...
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Article
Quality assurance of diatom counts in Europe: towards harmonized datasets
Investigations on organism ecology, biodiversity and biogeography often use large compiled datasets to extract information on species ecological preferences, which then can be used in environmental assessment....
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Article
Recovery of the algae and macroinvertebrate benthic community after Didymosphenia geminata mass growths in Spanish rivers
This study aims to assess the ecological profile of the invasive alga Didymosphenia geminata in NW Spain, analysing the biotic and abiotic factors related to the presence of massive colonies and their effect on r...
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Article
The Duero Diatom Index (DDI) for river water quality assessment in NW Spain: design and validation
Diatom indices developed in certain geographic regions are frequently used elsewhere, despite the strong evidence that such metrics are less useful when applied in regions other than that where species–environ...
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Article
Are diatom diversity indices reliable monitoring metrics?
A biological survey was carried out in 640 stations spread over the Loire-Bretagne National Network (France) between 1996 and 2000. Epilithic diatom inventories were obtained following standard methods. A tota...
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Article
Ecological assessment of Portuguese reservoirs based on littoral epilithic diatoms
The objective of this study was to evaluate whether biological methods based on epilithic littoral diatoms are a valuable complement to other biological elements for the assessment of the ecological potential ...
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Article
Identification versus counting protocols as sources of uncertainty in diatom-based ecological status assessments
In 2009, seventeen analysts participated in a pan-European diatom ring-test (intercalibration), analyzing nine samples from seven countries following the European standard EN 14407. The objective of this exerc...
