Benthic diatom flora in a small Hungarian tributary of River Danube (Rakos-stream)

2004 ◽  
Vol 111 ◽  
pp. 79-94 ◽  
Author(s):  
Katalin Szabó ◽  
Keve T. Kiss ◽  
Luc Ector ◽  
Mihály Kecskés ◽  
Éva Ács
Keyword(s):  
Benthic Diatom ◽  
Diatom Flora ◽  
River Danube

Benthic diatom flora (Bacillariophyta) of Keban Reservoir (Elazig, Turkey)

2006 ◽  
Vol 8 (2) ◽  
pp. 162-173
Author(s):  
A. Kadri Cetin ◽  
Bulent Sen
Keyword(s):  
Benthic Diatom ◽  
Diatom Flora

Use of Kohonen Self Organizing Maps (SOM) for the characterization of benthic diatom associations of the River Danube and its tributaries

River Systems ◽  
2007 ◽  
Vol 17 (3-4) ◽  
pp. 395-403 ◽  
Author(s):  
Gábor Várbíró ◽  
Gábor Borics ◽  
Keve T. Kiss ◽  
Katalin E. Szabó ◽  
Andelka Plenković-Moraj ◽  
...  
Keyword(s):  
Benthic Diatom ◽  
Self Organizing Maps ◽  
River Danube ◽  
Self Organizing

scholarly journals Spatial and temporal patterns of benthic diatom flora in Lake Stechlin, Germany

2017 ◽  
Vol 41 ◽  
pp. 211-222 ◽  
Author(s):  
Beáta SZABÓ ◽  
Judit PADISÁK ◽  
Géza B. SELMECZY ◽  
Lothar KRIENITZ ◽  
Peter CASPER ◽  
...  
Keyword(s):  
Temporal Patterns ◽  
Benthic Diatom ◽  
Spatial And Temporal Patterns ◽  
Diatom Flora ◽  
Lake Stechlin

scholarly journals Diatom species composition of the Nisava river and its tributaries Jerma and Temska rivers (southern Serbia)

2012 ◽  
Vol 64 (3) ◽  
pp. 1127-1140 ◽  
Author(s):  
Jelena Andrejic ◽  
Jelena Krizmanic ◽  
M. Cvijan
Keyword(s):  
Species Composition ◽  
Benthic Diatom ◽  
Future Research ◽  
Diatom Species ◽  
Diatom Flora ◽  
Chemical Agents ◽  
Floristic Analysis

The main objective of this paper is to report the diatom taxa identified from the Nisava River and its tributaries, the Jerma and Temska rivers. The study area included 11 sampling sites along the Nisava River, with one site on the Jerma River and one on the Temska River. Monthly samples (from stones, sediments and macrophytes) were collected from May 2008 to May 2009. Diatom frustules were cleaned with chemical agents, and mounted on permanent slides. In total, 194 diatom taxa were identified. The most species rich genera are Navicula (25), Nitzschia (17) and Gomphonema (13), while other genera are presented with one or more species. Detailed floristic analysis of the benthic diatom flora has not been conducted before on these rivers. Therefore, this paper provides a baseline for future research.

scholarly journals Benthic diatom flora in supraglacial habitats: a generic-level comparison

2010 ◽  
Vol 51 (56) ◽  
pp. 15-22 ◽  
Author(s):  
M.L. Yallop ◽  
A.M. Anesio
Keyword(s):  
Hot Spots ◽  
Benthic Diatom ◽  
Arctic Lakes ◽  
The Arctic ◽  
Aquatic Habitats ◽  
Generic Level ◽  
Lotic Ecosystems ◽  
Diatom Flora ◽  
Multiple Origins

AbstractMeltwaters on the surface of glaciers have been identified as hot spots for microbial activity. Records indicate that cyanobacteria and green algae dominate the autotrophic assemblages found in the benthic debris in cryoconite holes. Diatoms are commonly recorded in lentic and lotic ecosystems within polar habitats and, in line with the ubiquity principle for microbial communities, potentially, diatoms should be frequently found in the cryoconite of supraglacial environments. In this study, we cultured debris from cryoconite material collected in Svalbard and Greenland, to promote the growth of diatoms. Diatom generic richness varied between 12 and 17 between sites and was ∼5-fold higher than previously reported. Cryoconite supported aerophytic, halophytic, epipelic and bryophilic diatoms, suggesting multiple origins of colonizing cells. Twenty-seven genera were cultured from material that had been frozen (–20°C) for >1 year, indicating their long-term cryotolerance. The diatom flora composition was similar to that recorded in relatively acidic arctic lakes of low conductivity, and bore similarities at the generic level to those from terrestrial/semi-terrestrial moss communities from both the Arctic and Antarctic. As glaciers retreat, the diatom cells residing in cryoconite have the potential to act as seeding agents for a variety of terrestrial and aquatic habitats in proglacial regions and beyond.

scholarly journals Diatom species composition in the Raska river (Southwestern Serbia)

2015 ◽  
pp. 29-40
Author(s):  
Danijela Vidakovic ◽  
Jelena Krizmanic ◽  
Sanja Sovran ◽  
Katarina Stojanovic ◽  
Jelena Djordjevic
Keyword(s):  
Species Composition ◽  
Benthic Diatom ◽  
Diatom Species ◽  
Diatom Flora ◽  
Epilithic Diatoms ◽  
Acid Method ◽  
Floristic Analysis

The paper presents data on the composition of epilithic diatoms in the Raska River. Samples were collected by scraping stone surfaces with a brush from 5 localities along the Raska River in April, June, August and November 2011 and March and May 2012. Diatom frustules were cleaned using cold acid method, and mounted on permanent slides. An investigation of the Raska River resulted in description of 106 diatom taxa. The most species rich genera are Navicula (10), Gomphonema (10) and Nitzschia (9), while other genera are presented with one or more species. Detailed floristic analysis of the benthic diatom flora in this river has not been conducted before. Therefore, this paper provides a groundwork for future researches.

scholarly journals Epipelic Diatom Communities in Pengilon Lake Dieng, Central Java

2019 ◽  
Vol 125 ◽  
pp. 01023 ◽  
Author(s):  
Tri Retnaningsih Soeprobowati ◽  
Jumari ◽  
Riche Hariyati ◽  
Fini Wulandari
Keyword(s):  
Diversity Index ◽  
Benthic Diatom ◽  
Acidic Environment ◽  
Diatom Species ◽  
Diatom Flora ◽  
Central Java ◽  
Physical Chemical ◽  
Diatom Communities ◽  
Tropical Areas ◽  
High Diversity

Diatom communities in the lake have an advantage of environmental assessment and paleo reconstruction study, due to the ability of diatom preserved in the sediment. There are only limited studies about taxonomy, ecology, and diversity of diatom flora in tropical areas, especially Indonesia. The main objective of the research is to describe the structure of benthic diatom communities in Pengilon Lake, together with physical chemical variables. Sediment samples were collected at an altitude of more than 2,000 msal habitats with pH around 5.40-6.86. A total of 83 diatom species identified as belonging to 16 families. The diversity index ranges from about 2.25 to 3.01 indicated the ecosystem that naturally stable with none diatom dominant. The most abundant genera were Eunotia with high diversity around 14 taxa. The composition of Eunotia assemblages was different among habitat and season variation. Eunotia has a wide tolerance of pH because of its ability to survive in an area with an acidic environment and circumneutral water. The most dominance diatom species in Pengilon Lake were Eunotia paludosa (Grunow) 39.2%, Nitzschia frustulum (Kutzing) 28.1%, Pinnularia viridis (Krammer & Lange-Bertalot) and Pinnularia divergentissima (Grunow) 24.6%.

Three new records for diatoms from the Nišava River and its tributary, the Jerma River (Southern Serbia)

2012 ◽  
Vol 41 (3) ◽  
Author(s):  
Jelena Andrejić ◽  
Jelena Krizmanić ◽  
Mirko Cvijan
Keyword(s):  
New Taxa ◽  
New Records ◽  
Benthic Diatom ◽  
Diatom Species ◽  
Diatom Flora ◽  
Floristic Richness ◽  
Chemical Agents ◽  
New Findings

AbstractThe main objective of this paper is to report three benthic diatom species from the Nišava and Jerma Rivers, which prove to be new findings in the context of the Serbian diatom flora. These are also new distributional records for all three species. Monthly samples (from stones, sediments and macrophytes) were collected from May 2008 to May 2009. Diatom frustules were cleaned using chemical agents, and mounted on permanent slides. Descriptions (main valve measurement of the populations in the Nišava and Jerma Rivers), ecology, distribution in Serbia and Europe, and appropriate photomicrographs of three species are presented. Navicula novaesiberica Lange-Bertalot and Neidiomorpha binodiformis (Krammer) Lange-Bertalot & Cantonati are rarely found in Europe, while Parlibellus protracta (Grunow) Witkowski is more common. Navicula novaesiberica and Neidiomorpha binodiformis were found at higher water temperatures in comparison to temperatures reported in the existing literature. These new taxa significantly contribute to diatom floristic richness of the Nišava and Jerma Rivers in Serbia.

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