research fellow
tapolczai.kalman [at] blki.hu
+36 87 448-244 / 121
Brief description of the main scopes: 

The ecology and biodiversity of planktonic and benthic algae communities and their relation to environmental variables. Diatom-based ecological quality assessment of freshwaters using classic and novel (DNA metabarcoding) methods.


Selected publications:

Maria Kahlert, Bonnie Bailet, Teofana Chonova, Satu Maaria Karjalainen, Susanne C. Schneider, Kálmán Tapolczai (in press): Same same, but different: The response of diatoms to environmental gradients in Fennoscandian streams and lakes – barcodes, traits and microscope data compared. Ecological Indicators.

Kálmán Tapolczai, Géza B. Selmeczy, Beáta Szabó, Viktória B-Béres, François Keck, Agnès Bouchez, Frédéric Rimet, Judit Padisák (2021): The potential of exact sequence variants (ESVs) to interpret and assess the impact of agricultural pressure on stream diatom assemblages revealed by DNA metabarcoding. Ecological Indicators 122: 107322.

Kálmán Tapolczai, François Keck, Agnès Bouchez, Frédéric Rimet, Maria Kahlert, Valentin Vasselon (2019): Diatom DNA Metabarcoding for Biomonitoring: Strategies to Avoid Major Taxonomical and Bioinformatical Biases Limiting Molecular Indices Capacities. Frontiers in Ecology and Evolution 7: 409.

Kálmán Tapolczai, Valentin Vasselon, Agnès Bouchez, Csilla Stenger-Kovács, Judit Padisák, Frédéric Rimet (2018): The impact of OTU sequence similarity threshold on diatom-based bioassessment: A case study of the rivers of Mayotte (France, Indian Ocean). Ecology and Evolution 9: 166-179.

Kálmán Tapolczai, Agnès Bouchez, Csilla Stenger-Kovács, Judit Padisák, Frédéric Rimet (2016): Trait-based ecological classifications for benthic algae: review and perspectives. Hydrobiologia 776: 1-17.


Additional publications:

Gábor Várbíró, Gabor Borics, Maria Helena Novais, Maria Manuela Morais, Frédéric Rimet, Agnès Bouchez, Kálmán Tapolczai, István Bácsi, Philippe Usseglio-Polatera, Viktória B-Béres (2020): Environmental filtering and limiting similarity as main forces driving diatom community structure in Mediterranean and continental temporary and perennial streams. Science of the Total Environment 741: 140459.

Viktória B-Béres, Béla Tóthmérész, István Bácsi, Gábor Borics, András Abonyi, Kálmán Tapolczai, Frederic Rimet, Ágnes Bouchez, Gábor Várbíró, Péter Török (2019): Autumn drought drives functional diversity of benthic diatom assemblages of continental intermittent streams. Advances in Water Resources 126: 129-136.

Valentin Vasselon, Agnès Bouchez, Frédéric Rimet, Stéphan Jacquet, Rosa Trobajo, Méline Corniquel, Kálmán Tapolczai, Isabelle Domaizon (2018): Avoiding quantification bias in metabarcoding: Application of a cell biovolume correction factor in diatom molecular biomonitoring. Methods in Ecology and Evolution 9: 1060-1069.

Frédéric Rimet, Nelida Abarca, Agnes Bouchez, Wolf-Henning Kusber, Regine Jahn, Maria Kahlert, Francois Keck, Martyn G Kelly, David G Mann, Andre Piuz, Rosa Trobajo, Kalman Tapolczai, Valentin Vasselon, Jonas Zimmermann (2018): The potential of high throughput sequencing (HTS) of natural samples as a source of primary taxonomic information for reference libraries of diatom barcodes. Fottea 18: 37-54.

Kálmán Tapolczai, Agnès Bouchez, Csilla Stenger-Kovács, Judit Padisák, Frédéric Rimet (2017): Taxonomy- or trait-based ecological assessment for tropical rivers? Case study on benthic diatoms in Mayotte island (France, Indian Ocean). Science of the Total Environment 607-608: 1293-1303-

Valentin Vasselon, Frédéric Rimet, Kálmán Tapolczai, AgnèsBouchez (2017): Assessing ecological status with diatoms DNA metabarcoding: Scaling-up on a WFD monitoring network (Mayotte island, France). Ecological Indicators 82: 1-12.

François Keck, Valentin Vasselon, Kálmán Tapolczai, Frédéric Rimet, Agnès Bouchez (2017): Freshwater biomonitoring in the Information Age. Frontiers in Ecology and the Environment 15: 266-274.

Frédéric Rimet, Agnès Bouchez, Kálmán Tapolczai (2016): Spatial heterogeneity of littoral benthic diatoms in a large lake: monitoring implications. Hydrobiologia 771: 179-193.

Géza B. Selmeczy, Kálmán Tapolczai, Peter Casper, Lothar Krienitz, Judit Padisák (2016): Spatial- and niche segregation of DCM-forming cyanobacteria in Lake Stechlin (Germany). Hydrobiologia 764: 229–240.

Kálmán Tapolczai, Orlane Anneville, Judit Padisák, Nico Salmaso, Giuseppe Morabito, Tamar Zohary, Rémy D. Tadonléké, Frédéric Rimet (2015): Occurrence and mass development of Mougeotia spp. (Zygnemataceae) in large, deep lakes. Hydrobiologia 745: 17–29.

Pawan K. Dadheech, Géza B. Selmeczy, Gábor Vasas, Judit Padisák, Wolfgang Arp, Kálmán Tapolczai, Peter Casper, Lothar Krienitz (2014): Presence of Potential Toxin-Producing Cyanobacteria in an Oligo-Mesotrophic Lake in Baltic Lake District, Germany: An Ecological, Genetic and Toxicological Survey. Toxins 6: 2912-2931.

Viktória Üveges, Kálmán Tapolczai, Lothar Krienitz, Judit Padisák (2012): Photosynthetic characteristics and physiological plasticity of an Aphanizomenon flos-aquae (Cyanobacteria, Nostocaceae) winter bloom in a deep oligo-mesotrophic lake (Lake Stechlin, Germany). Hydrobiologia 221: 263-272.

Main profile in keywords: 
phytoplankton, phytobenthos, periphyton, diatoms, environmental DNA, DNA metabarcoding, ecological quality assessment