Biology Centre of the Academy of Sciences of the Czech Republic, Institute of Hydrobiology - homeBiology Centre of the Academy of Sciences of the Czech Republic, Institute of Hydrobiology
Jaroslava Komárková

Komárková Jaroslava, RNDr CSc. (PhD)

Komárková Jaroslava, RNDr CSc. (PhD) 

Born: 20-01-1938 Prague, Czech Republic,

Home address: Svobody 1011, CZ - 379 01 Třeboň, Czech Republic 

Education. Charles University, Prague, 1956 - 1961, spec.   Botany-Algology, Diploma work (RNDr) Systematics of the genus   Ankistrodesmus CORDA,  defended in 1961.

Postgradual student at Hydrobiological laboratory of Czechoslovak Acad.Sci. during 1965-1968, head Doc. J. Hrbáček. Theses (PhD.): Limitation of phytoplankton by the lack of nutrients (defended in   1971). 

Employments. Hydrobiological Laboratory Cz.Acad.Sci. 1962-1968, Prague

             Institute of Microbiology Cz.Acad.Sci. 1970-1972  Department at Třeboň

             Institute of Botany, Department of Hydrobotany at Třeboň 

                       - scientific worker, 1972-1984

             Hydrobiological Institute, Acad.Sci.of Czech. Rep., České Budějovice

                      -  senior sci. worker 1984 – 2010, (recently 30%)

    Biological Faculty, University of South Bohemia, České Budějovice, Czech Republic

                      scientific assistent 1996 - 2010, (recently 10%).

Field of research. Ecology of freshwater phytoplankton;  phytoplankton composition and biomass,  chlorophyll  concentration, primary production of phytoplankton, limiting  factors, circadian cycles in photosynthesis of phytoplankton, role of phytoplankton and periphyton in the food chain, hypertrophy and water-blooms. Taxonomy of planktonic  Cyanophyceae (Cyanobacteria) and Chlorophyceae.

Algae and cyanobacteria in tropical freshwaters, marshes and salines.

Recently: experimental studies of morphology of Cyanobacteria on isolated strains, DNA isolation and 16S rRNA sequenation, phylogenetic relationships between chroococcal types.  

Scientific results. More than 130 scient. papers and 2 chapters in books (author or co-author, see the List of publications), further papers in press.

During last years Principal Investigator or cooperating worker in 10 projects concerning hydrobiological and taxonomical problems, cooperator on the project of EU MIDI-CHIP, dealing with the genetic identification of the cyanobacterial clones forming water-blooms in freshwaters. Her students (Faculty of Sciences, University of South-Bohemia), formed the staff of the Laboratory of Phytoplankton Ecology at the Institute of Hydrobiology of Biological Center AS CR in České Budějovice (   

Scientific projects during last 10 years  

1998 – 2000 Autotrophic picoplankton, their composition and development in Římov and Slapy reservoirs and in acidified Šumava mountain lakes’; GA AV ČR no. A 601 7803, Principal Investigator.

2000 – 2004   ‘Water quality in reservoirs’ - Program Support of Targeted Research in the Academy of Sciences of ČR, No. S6017004 - cooperation

2001 – 2004   ‘Design and testing of DNA microarrays to measure and monitoring microbial diversity, using cyanobacteria in freshwater as model system‘; EU project – No. MIDI-CHIP EVK2-CT-1999-0026 MIDI-CHIP.Awarded to Annick Wilmotte, Univ Liege, Belgium – participant South-Bohemian University - cooperation

2001 – 2003   ‘Algal Community Assessment Under Different Nutrient and Grazing Intensity Regimes: Selenium Volatilization and Ecotoxic Risk‘; NSF project  – USA SalSe – awarded to E. Rejmánková, Univ. of California – Co-investigator.

2003 - 2006, ‘Linking Ecosystem Processes and Community Structure along Salinity and Nutrient Gradients in Tropical Marshes.‘ Kontakt-NSF project (MSMT) – Principal Investigator.

2004 – 2009   ‘ALTER-NET A long-term Biodiversity, Ecosystem and Awareness Research Network’; GOCE-CT-2003-505298 - V. Straškrabová (coordinated by Natural Environment Research Council,UK) - cooperation.

2005 – 2009   ‘Limnological basis of suitable management of reservoirs’; Program Support of Targeted Research in the Academy of Sciences of ČR, No. 1QS600170504 - cooperation.

2003-2005 GA AS  A6005308 Czech Republic. ‘Relationship among molecular, phenotypic and ultrastructural features of heterocytous cyanobacteria. Awarded to J. Komárek – cooperation.

2006-2009 GA AS   heterocytosní awarded to J. Komárek – cooperation.

2009-2013 GA Czech Republic. Cyanobacterial competition mechanisms influencing species composition of the phytoplankton communities. No. GA206/09/0309  - cooperation. 

International activities. Member of International Limnological Society, IAC/SIL (Int. Ass. for Cyanophyte Research), Internat. Ass. for Phytoplankton Ecology and Taxonomy, and of International Member of   Czech Botanical Algological and Limnological Scientific Associations.

During the last 5 years 18 lectures at different international   conferences and congresses, most of them published in the Proceedings.

Recent cooperation with Viiki University Helsinki, Department of Applied Chemistry and Microbiology - Division of Microbiology (Dr. Kaarina Sivonen) and CNR - Italy, Institute for Ecosystem Study - Section of Firenze (Dr. Stefano Ventura). 

Teaching practice. Student assistant at the Algological Dept. of F. of  Sci. Prague, (3 terms), lecturer at the Course for postgraduated students at the Univ. in Lund, Sweden (1 month, 1977), lecturer at the Charles University, Hydrobiol. Dept., practice in phytoplankton ecology methods. Several lectures during the stay at the University in Waterloo and Manitoba, Canada, as a visiting professor in 1989. Lectures and   practice in the course for postgradual students "Ecology of phytoplankton" at the UNAM, Mexico in 1993. Lectures and practice of the course for Brasilian algologists (University of Sao Carlos 1996, visiting professor). Recently lecturer (10% employment)  on the University of South Bohemia   (algal ecology), supervisor for 13 diploma, 12 master and 4 PhD students.


List of Publications

Komárková, J.,  J. Jezberová, O. Komárek & E. Zapomělová (2010): Variability of Chroococcus (Cyanobacteria) morphospecies with

regard to phylogenetic relationships. Hydrobiologia 639: 69-83.

Zapomělová, E., Řeháková, K., Jezberová, J., Komárková, J. (2010): Polyphasic characterization of eight planktonic Anabaena strains (cyanobacteria) with reference to the variability of 61 Anabaena populations observed in the field. Hydrobiologia 639: 99–113.  
Zapomělová, E., Jezberová, J., Hrouzek, P., Hisem, D., Řeháková, K.,
 Komárková, J. (2009): Polyphasic characterization of three strains of Anabaena reniformis and Aphanizomenon aphanizomenoides (cyanobacteria) and their re-classification to Sphaerospermum gen. nov. (incl. Anabaena kisseleviana). Journal of Phycology 45: 1363–1373.

Vymazal, J., Komárková, J., Řeháková, K., Kaštovský, J., Bastl, M. (2008) Algal responses to long-term nutrient additions. In: Richardson, C.J. (ed.), The Everglades Experiments. Lessons for Ecosystem Restoration, ISBN 978–0–387–98796–5. Ecological Studies, 201: pp. 261–275. Chapter in the book

Zapomělová, E., Hrouzek, P., Řeháková, K., Šabacká M., Stibal, M., Caisová, L., Komárková, J., Lukešová, A. (2008) Morphological variability in selected heterocystous cyanobacterial strains as a response to varied temperature, light intensity and medium composition. Folia Microbiologica, 53 (4): 333–341.

Zapomělová, E., Hisem, D., Řeháková, K., Hrouzek, P., Jezberová, J., Komárková, J., Korelusová, J., Znachor, P. (2008) Experimental comparison of phenotypical plasticity and growth demands of two strains from the Anabaena circinalis/A. crassa complex (cyanobacteria). Journal of Plankton Research, 30 (11): 1257–1269.

Komárek, J. , Komárková–Legnerová, J. (2007) Taxonomic evaluation of the cyanobacterial microflora from alkaline marshes of northern Belize. 1. Phenotypic diversity of coccoid morphotypes. Nova Hedwigia, 84 (1–2): 65–111.

Komárek, J. , Komárková–Legnerová, J. (2007) Several rare freshwater planktic Cyanobacteria (Cyanoprokaryotes) from reservoirs in South America. Hoehnea, 34 (1): 49–58.

Jezberová, J., Komárková, J.  (2007) Morphometry and growth of three Synechococcus-like picoplanktic cyanobacteria at different culture conditions. Hydrobiologia, 578 (1): 17–27.

Zapomělová, E., Řeháková, K., Znachor, P., Komárková, J. (2007) Morphological diversity of coiled planktonic types of the genus Anabaena (cyanobacteria) in natural populations – taxonomic consequences. Cryptogamie, Algologie, 28 (4): 353–371.

Komárková, J., Nedoma, J. (2006) The CYATAXO Database. Czech Phycology, 6: 49–54.

Znachor, P., Jurczak, T. , Komárková, J., Jezberová, J., Mankiewicz, J. , Kaštovská, K., Zapomělová, E.  (2006) Summer changes in cyanobacterial bloom composition and microcystin concentration in eutrophic Czech reservoirs. Environmental Toxicology 21 (3): 236–243.  
Rajaniemi-Wacklin, P. , Rantala, A. , Mugnai, M.A. , Turicchia, S. , Ventura, S. , Komárková, J., Lepistö, L. , Sivonen, K.  (2006) Correspondence between phylogeny and morphology of Snowella spp and Woronichinia naegeliana, cyanobacteria commonly occurring in lakes. Journal of Phycology, 42: 226–232.

Rejmánková, E. , Komárková, J. (2005) Response of cyanobacterial mats to nutrient and salinity changes. Aquatic Botany, 83 (2): 87–107.

Mankiewicz, J. , Komárková, J., Izydorczyk, K. , Jurczak, T. , Tarczynska, M. , Zalewski, M.  (2005) Hepatotoxic cyanobacterial blooms in the lakes of northern Poland. Environmental Toxicology, 20 (5): 499–506.

Hejzlar, J., Hohausová, E., Komárková, J., Kopáček, J., Peterka, J., Duras, J. (2005) Drinking water reservoir Nýrsko - influence of macrophytes on water quality. In: Ambrožová, J., Tlustá, P. (eds.), Sborník konference Vodárenská biologie 2005. Praha, February 2–3, 2005, Vodní zdroje EKOMONITOR, Chrudim, ISBN 80–86832–07–4: pp. 173–179.

Komárková, J., Mugnai, M.A. , Sili, C. , Komárek, O. , Turicchia, S. (2005) Stable morphospecies within the 16S rRNA monophyletic genus Microcystis (K?TZING) (K?TZING). Algological Studies (Cyanobacterial Research 6), 117: 279–295.

Komárek, J. , Ventura, S. , Turicchia, S. , Komárková, J., Mascalchi, C. , Soldati, E. (2005) Cyanobacterial diversity in alkaline marshes of northern Belize (Central America). Algological Studies (Cyanobacterial Research 6), 117: 265–278.

Boutte, Ch. , Komárková, J., Grubisic, S. , Znachor, P., Bataille, A. , Zapomělová, E. , Gullukaya, A. , Jezberová, J., Wilmotte (2005) Algological Studies (Cyanobacterial Research 6), 117: 177–195.

Sant’Anna, C.L. , Azevedo, M.T.P. , Senna, P.A.C. , Komárek, J. , Komárková, J. (2004) Planktic cyanobacteria from S?o Paulo State, Brazil: Chroococcales. Revista Brasileira de Botânica, 27 (2): 213–227.

Rejmánková, E. , Komárková, J., Rejmánek, M. (2004) ?15N as an indicator of N2-fixation by cyanobacterial mats in tropical marshes. Biogeochemistry, 67 (3): 353-368.

Rejmánková, E. , Komárek, J. , Komárková, J. (2004) Cyanobacteria – a neglected component of biodiversity: patterns of species diversity in inland marshes of northern Belize (Central America). Diversity and Distributions, 10: 189–199.

Komárek, J. , Komárková,J. (2004) Taxonomic review of the cyanoprokaryotic genera Planktothrix and Planktothricoides. Czech Phycology, Olomouc, 4: 1–18.

Vymazal, J. , Komárková, J., Kubečková, K., Kaštovský, J. (2003) Periphyton composition change along the phosphorus gradient in the Florida Everglades. Czech Phycology, Olomouc, 2: 83-92.

Štrojsová, A.,Vrba, J., Nedoma, J., Komárková, J., Znachor, P. (2003) Seasonal study of extracellular phosphatase expression in the phytoplankton of a eutrophic reservoir. European Journal of Phycology, 38: 295-306.

Nedoma, J., Štrojsová, A., Vrba, J., Komárková, J., Šimek K. (2003) Extracellular phosphatase activity of natural plankton studied with ELF97 phosphate: fluorescence quantification and labelling kinetics. Environmental Microbiology, 5 (6): 462-472.

Komárek, J., Komárková, J. (2003) Phenotype diversity of the cyanoprokaryotic genus Cylindrospermopsis (Nostocales); review 2002. Czech Phycology, Olomouc, 3: 1-30.

Komárková, J., Šimek K. (2003) Unicellular and colonial formations of picoplanktonic cyanobacteria under variable environmental conditions and predation pressure. Archiv für Hydrobiologie Algological Studies, 109: 327-340.

Komárková, J., Tavera, R. (2003) Steady state of phytoplankton assemblage in the tropical Lake Catemaco (Mexico). Hydrobiologia, 502: 187-196.

Komárková, J., Komárek, O. , Hejzlar, J. (2003) Evaluation of the long term monitoring of phytoplankton assemblages in a canyon-shape reservoir using multivariate statistical methods. Hydrobiologia, 504 (Special Issue): 143-157.

Azevedo, M.T. de P. , Sant'Anna, C.L.  , Senna, P.A.C. , Komárek, J. , Komárková, J. (2003) Contribution to the microflora of chroococcalean cyanoprokaryotes from Sao Paulo State, Southeast Brazil. Hoehnea, 30 (3): 285-295.

Vymazal, J., Komárková, J., Kubeeková, K., Kaštovský, J. (2002) Zminy složení nárostu v závislosti na koncentraci fosforu ve floridských Everglades [Periphyton composition change along the phosphorus gradient in the Florida Everglades]. Czech Phycology, Olomouc, 2: 83-92.   

Komárková, J. (2002) Cyanobacterial picoplankton and its colonial formations in two eutrophic canyon reservoirs (Czech Republic). Archiv für Hydrobiologie, 154 (4): 605–623.

Komárková, J. (2002) Do cyanobacterial picoplankton exist in eutrophic reservoirs? Verhandlungen Internationale Vereinigung für theoretische und angewandte Limnologie, 28: 497–500.

Komárek, J., Komárková–Legnerová, J., Sant’anna, C.L., Azevedo, M.T. de Paiva, Senna, P.A.C. (2002) Two common Microcystis species (Chroococcales, Cyanobacteria) from tropical America, including M. panniformis sp. nov. Cryptogamie. Algol., 23 (2): 159–177

Komárek, J. , Komárková-Legnerová, J. (2002) Preparation of the world cyanobacterial database. Research Report from the National Institute for Environmental Studies, 171: 64-69.

Komárek, J. , Komárková-Legnerová, J. (2002) Contribution to the knowledge of planktic cyanoprokaryotes from central Mexico. Preslia, 74: 207-233

Desortová, B. , Komárková, J. (2002) Phytoplankton of the Klíčava reservoir during 1959–1970. Acta Universitatis Carolinae. Environmentalica, 15 (1–2): 33-55.

Komárek, J. , Komárková, J., Kling, H. (2003) Filamentous Cyanobacteria. In: Wehr, J.D., Sheath, R.G. (ed.), Freshwater Algae of North America. Academic Press, Elsevier Science, San Diego, pp. 117-196. ISBN 0-12-741550-5. Chapter in the book

Komárek, J., Azevedo, S.M. , Domingos, P. , Komárková, J., Tichý, M. (2001) Background to the Caruaru tragedy; a case taxonomic study of toxic cyanobacteria. Archiv für Hydrobiologie Algological Studies, 103: 9-29.

Rejmánková, E. , Komárková, J. (2000) A function of cyanobacterial mats in phosphorus-limited tropical wetlands. Hydrobiologia, 431: 135-

Komárková, J., Laudares-Silva, R. , Senna, P. A. C.  
(1999) Extreme morphology of Cylindrospermopsis raciborskii (Nostocales, Cyanobacteria) in the Lagoa do Peri, a freshwater coastal lagoon, Santa Catarina, Brazil. Algological Studies, 94: 207-222. 

© 2022 - Laboratory of Phytoplankton Ecology
Biology Centre of the Academy of Sciences of the Czech Republic, Institute of Hydrobiology