A review of the alien and expansive species of freshwater cyanobacteria and algae in the Czech Republic

Kaštovský, Jan; Hauer, Tomáš; Mareš, Jan; Krautová, Markéta; Bešta, Tomáš; Komárek, Jiří; Desortová, Blanka; Heteša, Jiří; Hindáková, Alica; Houk, Václav; Janeček, Emil; Kopp, Radovan; Marvan, Petr; Pumann, Petr; Skácelová, Olga; Zapomělová, Eliška

doi:10.1007/s10530-010-9754-3

Cited by 81 publications

(82 citation statements)

References 135 publications

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“…Impoverishment of the microflora caused by acidification or nutrient enrichment in the last decades (Almer et al, 1974;Ruggiu et al, 1998) was a striking indicator of the undesirable processes. Long-term studies on phytoplankton diversity are also important in highlighting the trends in species invasions (Kaštovský et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

The role of phytoplankton diversity metrics in shallow lake and river quality assessment

Borics

Görgényi

Grigorszky

et al. 2014

Ecological Indicators

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Ecological water quality problems are frequently connected to increment of phytoplankton productivity and overdominance of some phytoplankton species. Metrics that show monotonously increasing or decreasing tendencies along stressor gradients is recommended for ecological state assessment. Diversity metrics are influenced by various physical disturbances and show high within-year variability; thus, there is no agreement on the usefulness of these metrics as state indicators.To test the usefulness of phytoplankton diversity in ecological state assessment we investigated the productivity-diversity relationships for lakes and rivers in the Carpathian Basin (Hungary). We demonstrated that the shape of productivity-diversity relationship depends on the investigated water body type. Regarding lakes, hump-shaped relationship was found for all computed metrics. Parallel with the increase in phytoplankton productivity values, diversity metrics showed monotonously increasing tendencies in rhithral and decreasing tendencies in large potamal rivers. We found no systematic relationship in the case of small lowland rivers. Changes of diversity metrics calculated for species and functional groups showed similar tendencies within the types, only the slopes of regression lines differ each other. The use of diversity metrics as ecological state indicators should be restricted to water body types where diversity decreases or increases monotonously with phytoplankton biomass. Regarding the lakes the use of diversity metrics is not recommended for ecological state assessment. In rhithral and large potamal river assessment, application of diversity metrics should be strongly considered. We demonstrated that diversity metrics can be useful components of multimetric indices proposed to use by the Water Framework Directive.

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Section: Discussionmentioning

confidence: 99%

The role of phytoplankton diversity metrics in shallow lake and river quality assessment

Borics

Görgényi

Grigorszky

et al. 2014

Ecological Indicators

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“…Moreover, in aquatic environments usually the introduction of species occurs by microscopic organisms, whose invasions are poorly understood, and its impact on the environment is probably underestimated. The invasion and spread of non-native species of many different kinds of organisms is of increasing interest to researchers (Kastovsky et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Invasion of the dinoflagellate Ceratium furcoides (Levander) Langhans 1925 at tropical reservoir and its relation to environmental variables

et al. 2012

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Resumo: Dinoflagelados do gênero Ceratium são principalmente marinhos, porém existem raras ocorrências em água doce. Neste estudo analisamos a invasão e o estabelecimento progressivo de Ceratium furcoides, uma espécie exótica no reservatório da UHE de Furnas. Foram coletadas amostras em 36 locais em todo o reservatório durante os meses de março, junho, setembro e dezembro de 2007. Variáveis físicas e químicas foram aferidas em cada local. C. furcoides ocorreu em 20 dos 36 pontos de coleta, em densidades que variaram entre 0.57 e 28.564.913 ind.m -3 . A maior densidade da espécie foi registrada na região do rio Marimbondo (G14) classificada como mesotrófica e local onde alto volume de esgoto doméstico sem tratamento é lançado diariamente. A densidade de C. furcoides foi correlacionada com os valores de temperatura, nutrientes dissolvidos (nitrato e nitrito) e com a condutividade elétrica. Até o momento do presente estudo, a presença de Ceratium furcoides no reservatório aparentemente não afetou as condições ambientais ou outras comunidades, porém, ao se tornar plenamente estabelecida poderá se transformar em um risco ecológico e até mesmo espalhar-se para outras bacias. Palavras-chave: espécie invasora, blooms algais, eutrofização, ecologia de reservatórios.

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“…Although it had a very rare occurrence in Lake Visovačko during this study, it has been increasingly reported in the last decades from both lacustrine and riverine systems with different halobity, presumably as result of increased eutrophication, and is considered a potentially invasive species (Kaštovský et al, 2010;Abonyi et al, 2012;Kiss et al, 2012).…”

Section: Assemblage Analysesmentioning

confidence: 73%

Defining centric diatoms of most relevant phytoplankton functional groups in deep karst lakes

et al. 2016

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Phytoplankton in karst lakes is characterized by co-occurrence of chrysophytes (Chrysophyceae), dinoflagellates (Dinophyceae), and diatoms (Bacillariophyta) as the most diverse and abundant group. Using Reynolds functional approach in ecological phytoplankton investigations makes karstic lakes comparable and facilitates interpretation of their responses to changing environmental conditions. Accurate taxonomic identification to species level, based on precise resolution of specific characteristics by electron microscopy, is essential in order to correctly associate species into coda. This paper defines the most abundant centric diatoms and coexisting species in the phytoplankton of karst lakes in Croatia as a contribution to better description of phytoplankton functional groups dominated by centric diatoms. Several representatives for diatom-based Reynolds functional groups of four lakes in Croatia were described in this paper: Pantocsekiella costei and Stephanocostis chantaica for group A, Pantocsekiella ocellata and Cyclotella distinguenda for group B, and Stephanodiscus neoastraea for group C, together with their ecological preferences which clearly correspond to pertaining functional classification. Selected and coexisting functional groups define natural, oligo-to mesotrophic karst deep lake systems.

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A review of the alien and expansive species of freshwater cyanobacteria and algae in the Czech Republic

Cited by 81 publications

References 135 publications

The role of phytoplankton diversity metrics in shallow lake and river quality assessment

The role of phytoplankton diversity metrics in shallow lake and river quality assessment

Invasion of the dinoflagellate Ceratium furcoides (Levander) Langhans 1925 at tropical reservoir and its relation to environmental variables

Defining centric diatoms of most relevant phytoplankton functional groups in deep karst lakes

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