doc. Ing. Josef Hejzlar, CSc.

Job Position: Senior scientist - Department of Hydrochemistry and Ecosystem Modelling (HEM)

Contact details

Phone: 420387775876
E-mail: hejzlar@hbu.cas.cz
Room: 323NB

Description

Limnology of lakes and reservoirs, mainly cycles of nutrients (carbon, nitrogen, phosphorus, sulphur etc.), eutrophication, material transport from the catchment in surface waters and mathematical modelling of hydrodynamics and water quality in water bodies

Curriculum vitae

Born: 1956 in Liberec, the Czech Republic
 
Education:
Master of Sciences, 1980, Institute of Chemical Technology in Prague. Emphasis on water technology and water analysis.
Doctor of Philosophy (PhD), 1985, Institute of Chemical Technology in Prague. Emphasis on water and environmental chemistry. Dissertation title: "Analysis of the high molecular weight dissolved organic substances produced by microorganisms of the activated sludge."
Habilitation, 2003, University of South Bohemia in České Budějovice. Thesis title: "Phosphorus cycling in the reservoir ecosystem"
 
Professional experience:
Institute of Landscape Ecology CAS, since April 1, 1990, Hydrobiological Institute CAS
1985-1992, research scientist, member of hydrochemical laboratory
Since 1993, senior scientist, member of hydrochemical laboratory
1998- 2015, head of the Department of Hydrochemistry and Ecosystem Modelling
Since 1995, Faculty of Science, University of South Bohemia in České Budějovice, a part-time contract as assistant or associated professor
 
Projects:
Principal investigator or co-investigator of 12 national projects (GACR, GAAVCR, MSMT-COST, MZe-NAZV) and participation in 2 EU projects focused on modeling the global and local impacts in aquatic and terrestrial ecosystems (EUROHARP, REFRESH)

Teaching

Description:

Tématika výuky zahrnuje limnologické a hydrochemické aspekty ekologie jezer a umělých nádrží, např. koloběhy živin (C, N, P, S), organické hmoty (primární produkce, humusové látky) a dalších prvků (Si, Fe, Mn, Al) v ekosystému "povodí - nádrž/jezero" a vododohospodářské řízení množství a kvality vody v nádržích.
 



Publications
Total found: 229 records
Kopáček J., Bače R., Hejzlar J., Kaňa J., Kučera T., Matějka K., Porcal P., Turek J. (2020) Changes in microclimate and hydrology in an unmanaged mountain forest catchment after insect-induced tree dieback Science of the Total Environment 720 : 137518.
DOI: 10.1016/j.scitotenv.2020.137518
Kopáček J., Hejzlar J., Oulehle F., Porcal P., Weyhenmeyer G., Norton S. (2020) Disruptions and re-establishment of the calcium-bicarbonate equilibrium in freshwaters Science of the Total Environment 743 : 140626.
DOI: doi.org/10.1016/j.scitotenv.2020.140626
Koschorreck M., Downing A.S., Hejzlar J., Marcé R., Laas A., Arndt W.G., Keller P.S., Smolders A.J.P., van Dijk G., Kosten S. (2020) Hidden treasures: Human-made aquatic ecosystems harbour unexplored opportunities Ambio 49 : 531–540.
DOI: 10.1007/s13280-019-01199-6
Stockwell J., Doubek J.P., Adrian R., Anneville O., Carey C.C., Carvalho L., De Senerpont Domis L.N., Dur G., Frassl M.A., Grossart H., Ibelings B.W., Lajeunesse M.J.  , Lewandowska A.M., Llames M.E., Matsuzaki S.I., Nodine E.R., Noges P., Patil V.P., Pomati F., Rinke K., Rudstam L.G. , Rusak J., Salmaso N., Seltmann C.T. , Straile D., Thackeray S., Thiery W., Urrutia-Cordero P., Venail P., Verburg P., Woolwayay R.I., Zohary T. , Andersen M.R., Bhattacharya R., Hejzlar J., Janatian N., Kpodonu A.T.N.K., Williamson T.J., Wilson H.L. (2020) Storm impacts on phytoplankton community dynamics in lakes Global Change Biology 26 : 2756–2784.
DOI: 10.1111/gcb.15033
Vystavna Y., Schmidt S., Kopáček J., Hejzlar J., Holko L., Matiatos I., Wassenaar L., Persoiu A., Badaluta C.A., Huneau F. (2020) Small-scale chemical and isotopic variability of hydrological pathways in a mountain lake catchment Journal of Hydrology 585 : 124834.
DOI: 10.1016/j.jhydrol.2020.124834
Zemanová J., Šorf M., Hejzlar J., Šorfová V., Vrba J. (2020) Planktivorous fish positively select Daphnia bearing advanced embryos Marine and Freshwater Research 71 : 505-511 .
DOI: 10.1071/MF18466
Znachor P., Nedoma J., Hejzlar J., Seďa J., Komárková J., Kolář V., Mrkvička T., Boukal D.S. (2020) Changing environmental conditions underpin long-term patterns of phytoplankton in a freshwater reservoir Science of the Total Environment 710 : 135626.
DOI: 10.1016/j.scitotenv.2019.135626
Gabaldon Tebar C., Devetter M., Hejzlar J., Šimek K., Znachor P., Nedoma J., Seďa J. (2019) Seasonal strengths of the abiotic and biotic drivers of a zooplankton community Freshwater Biology 64 : 1326–1341.
DOI: 10.1111/fwb.13308
Hejzlar J., Kopáček J., Vystavna Y. (2019) Predikce koncentrace fosforu a trofie v údolních nádržích [Prediction of phosphorus concentration and trophic conditions in reservoirs] In: Kosour D. et al. (eds.) Sborník konference Vodní nádrže 2019, 23.–24.10.2019, Brno, ČR, Povodí Moravy, s.p., Brno, SBN 978-80-907141-3-7, 101–106.
Kubečka J., Souza A., Říha M., Muška M., Vašek M., Boukal D., Prchalová M., Jůza T., Čech M., Draštík V., Frouzová J., Hejzlar J., Matěna J., Moraes K. , Peterka J., Randák T., Šmejkal M., Tušer M., Blabolil P., Vejřík L. (2019) Kýžený ráj candátů? Kvalitativní zamyšlení nad kvantitativními průzkumy nádrže Lipno [Pikeperch paradise? Qualitative reflections on quantitative surveys of the Lipno reservoir] Limnologické noviny 2019 (1) : 1–6.
Rutegwa M. , Gebauer R., Veselý L., Regenda J., Strunecký O., Hejzlar J., Drozd B. (2019) Diffusive methane emissions from temperate semi-intensive carp ponds Aquaculture Environment Interactions 11 : 19-30.
DOI: 10.3354/aei00296
Rutegwa M. , Potužák J., Hejzlar J., Drozd B. (2019) Carbon metabolism and nutrient balance in a hypereutrophic semi-intensivefishpond Knowledge and Management of the Aquatic Ecosystystms 420 : 49.
DOI: 10.1051/kmae/2019043
Scharfenberger U., Jeppesen E. , Beklioglu M., Søndergaard M., Angeler D., Çakıroğlu, A.İ., Drakare S., Hejzlar J., Mahdy A., Papastergiadou E., Stefanidis K., Šorf M., Tuvikene A., Zingel P., Adrian R. (2019) Effects of trophic status, water level, and temperature on shallow lake metabolism and metabolic balance: A standardized pan-European mesocosm experiment Limnology and Oceanography 64 : 616-631.
DOI: 10.1002/lno.11064
Weyhenmeyer G., Hartmann J., Hessen D.O., Kopáček J., Hejzlar J., Jacquet S., Hamilton S.K., Verburg P., Leach T.H., Schmid M., Flaim G., Nõges T., Nõges P., Wentzky V.C., Rogora M., Rusak J., Kosten S., Paterson A.M., Teubner K., Higgins S.N., Lawrence G., Kangur K., Kokorite I., Cerasino L., Funk C., Harvey R., Moatar F., De Wit H., Zechmeister T. (2019) Widespread diminishing anthropogenic effects on calcium in freshwaters Scientific Reports 9 : 10450.
DOI: 10.1038/s41598-019-46838-w
Hejzlar J., Jarošík J., Kopáček J., Vystavna Y. (2018) Trendy vývoje koncentrací fosforu v nádržích Orlík a Slapy /Trends in development of phosphorus concentrations in Orlík and Slapy Reservoirs/ VTEI 2018 (2) : 30-35.
Hejzlar J., Potužák J., Drozd B., Rutegwa M. (2018) Metabolismus uhlíku a bilance živin v hypertrofním produkčním rybníku [Carbon metabolism and nutrient balance in a hypertrophic production fishpond] In: Říhová Ambrožová J., Pecinová A. (Edit.) Sborník konference Vodárenská biologie 2018, 6.-7. 2. 2018, Praha, Vodní zdroje EKOMONITOR spol. s r. o., Chrudim, ISBN 978-80-88238-06-5. 109–116.
Kopáček J., Evans C., Hejzlar J., Kaňa J., Porcal P., Šantrůčková H. (2018) Factors Affecting the Leaching of Dissolved Organic Carbon after Tree Dieback in an Unmanaged European Mountain Forest Environmental Science & Technology 52 : 6291-6299.
DOI: 10.1021/acs.est.8b00478
Kopáček J., Hejzlar J. (2018) Vltavská kronika [Chronicle of the Vltava River] Vesmír 97 (7) : 452-455.
Kopáček J., Hejzlar J., Kaňa J., Porcal P., Turek J. (2018) Fluxes of ecologically important solutes in the Čertovo catchment–lake system from 1998–2017 Silva Gabreta 24 : 85-114.
Kopáček J., Hejzlar J., Kaňa J., Porcal P., Turek J. (2018) Fluxes of ecologically important solutes in the Plešné catchment–lake system from 2000–2017 Silva Gabreta 24 : 115-147.

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CONTACT

Biology Centre CAS
Institute of Hydrobiology
Na Sádkách 702/7
370 05 České Budějovice

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