Benthic Diatom Communities Along pH and TP Gradients in Hungarian and Swedish Streams

Kovács, Csilla; Kahlert, Maria; Padisák, Judit

doi:10.1007/s10811-006-9080-4

Cited by 55 publications

(23 citation statements)

References 24 publications

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“…In general, the relationship between epiphyton and water chemistry has been demonstrated many times (ács et al 1991, 1994kitner & Poulíčková 2003;Blanco et al 2004;HájKová et al 2011) and submerged macrophytes have been recommended for routine monitoring (Kelly et al 1998;Blanco et al 2004). We found significant relationship to selected environmental variables (water streaming, pH) in congruence with other studies (PotaPova & cHarles 2003;kitner & Poulíčková 2003;kovács et al 2006;FránKová et al 2009;yang & FloWer 2012). However, the results of this method of water quality status assessment are strongly influenced by following stones and sediments in streams and by macrophytes and sediments in shallow lakes and ponds.…”

Section: Discussionsupporting

confidence: 90%

Epiphytic diatoms in lotic and lentic waters - diversity and representation of species complexes

Kollár¹,

Fránková²,

Hašler³

et al. 2015

Fottea

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Small streams and shallow ponds represent sensitive ecosystems and attached diatoms can serve as integrative indicator with fast response to environmental changes. Development of methods for ecological monitoring throughout Europe and their calibration for particular ecoregions are not finished yet and databases need to be filled by data from undersampled regions and overlooked substrates. The present study aims to explore the diversity of epiphytic diatoms in unexplored catchment areas with special attention to substrate specificity and distribution of unresolved diatom species complexes. Significant differences were found in diversity of both regions and water types (lotic/lentic). No significant differences were found in the case of substrates. CCA analysis showed significant influence of pH, water streaming (streaming/stagnant) and Lemna substrate to species composition. Surprisingly species complexes represent the majority of epiphytic assemblages with no significant differences between lotic and lentic waters or substrates except of Lemna. The high representation of complexes does not lead automatically to reduction of overall diversity of the sample.

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Section: Discussionsupporting

confidence: 90%

Epiphytic diatoms in lotic and lentic waters - diversity and representation of species complexes

Kollár¹,

Fránková²,

Hašler³

et al. 2015

Fottea

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“…The presence of another species, Nitzschia palea, in the FH1 group is also reassuring because this species is defined as a characteristic species of saline lakes (Blinn 1993), although it is also common in freshwaters (Lange-Bertalot 2013). The dominant Achnanthidium minutissimum, however, is associated with electrolyte-poor environments at different pH (van Dam et al 1994, Kovács et al 2006 and trophic levels (Lange-Bertalot 2013).…”

Section: Managementmentioning

confidence: 99%

Vanishing world: alkaline, saline lakes in Central Europe and their diatom assemblages

Stenger‐Kovács

Lengyel

Buczkó

et al. 2014

Self Cite

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European shallow, alkaline, saline lakes are potential indicators of climate change. Diatoms have often been reported as valuable proxies for different kinds of anthropogenic activities. Diatom assemblages and 14 environmental variables from shallow, alkaline lakes from 2 different regions of the Carpathian basin (Europe) were investigated for 3 years to (1) elucidate the physical and chemical parameters and diatom assemblages of these lakes, (2) select the principle variables affecting the diatom communities, and (3) , and Cl − ), platinum (Pt) units (colour), and oxygen saturation. Dominance by the stress-tolerant, motile diatom ecological guild, represented mainly by Nitzschia and Navicula species, was characteristic in these saline, turbid environments. Indicator species of the 2 regions were found to be different. Diatom assemblage composition was chiefly determined by conductivity and HCO 3 − and SO 4 2− concentrations. Nutrient loads, extreme weather events, and consequences of habitat maintenance management were unequivocally identifiable by variations in the benthic diatom assemblage composition. Diatoms are valuable indicators for assessment of ecological status of these saline, alkaline lakes. Including these organisms in ecological status assessments of inland saline lakes may improve the effectiveness of directives for conservation management and might be useful in preserving these pristine habitats that depend on natural hydrological processes.

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“…However, most studies focus on structural attributes, such as biomass, chlorophyll concentration and diatom composition (Chen et al 2010;Lewis et al 2002;Kovács et al 2006;Lane and Brown 2007). Compared to structural approaches, much less effort has been devoted to the use of ecological functional attributes of biofilms in assessing the ecological health of aquatic ecosystems (Feio et al 2010;Gessner and Chauvet 2002).…”

Section: Introductionmentioning

confidence: 99%

Biofilms as potential indicators of macrophyte-dominated lake health

Liu

Wang

2011

Ecotoxicology

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The structural and functional attributes of biofilms from Lake Baiyangdian, China, were tested to evaluate the utility of biofilms as indicators of macrophyte-dominated lake health. Biofilms on artificial substrata were sampled at 8 sites in the lake during different seasons. The responses of biofilms to land use and water quality changes were analyzed. The biofilm structural and functional attributes fluctuated seasonally. All attributes we tested differed significantly with different land use. Generally, biomass and enzyme activities increased, whereas chl c/a decreased with human disturbance. Attributes were strongly correlated to environmental variables, especially the trophic status of the lake. Overall, biofilms were good indicators of macrophyte-dominated lake health. The proportions of Bacillariophyta and Cyanophyta, Chlorophyll-a, b, chlorophyll-b/a, chlorophyll-c/a, algal density, β-glucosidase, aminopeptidase and ash-free dry weight of biofilms are recommended as tools for assessing responses to land use changes, and for monitoring the effectiveness of ecosystem rehabilitation.

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Benthic Diatom Communities Along pH and TP Gradients in Hungarian and Swedish Streams

Cited by 55 publications

References 24 publications

Epiphytic diatoms in lotic and lentic waters - diversity and representation of species complexes

Epiphytic diatoms in lotic and lentic waters - diversity and representation of species complexes

Vanishing world: alkaline, saline lakes in Central Europe and their diatom assemblages

Biofilms as potential indicators of macrophyte-dominated lake health

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