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: 220 records
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
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
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 Roports 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.
Vystavna Y., Diadin D., Rossi P.M., Gusyev M., Hejzlar J., Mehdizadeh R., Huneau F. (2018) Quantification of water and sewage leakages from urban infrastructure into a shallow aquifer in East Ukraine Environmental Earth Sciences 77 : 748.
DOI: 10.1007/s12665-018-7936-y
Vystavna Y., Holko L., Hejzlar J., Persoiu A., Graham N.D., Juras R., Huneau F., Gibson J. (2018) Isotopic response of runoff to forest disturbance in small mountain catchments Hydrological Processes 32 : 3650-3661.
DOI: 10.1002/hyp.13280
Znachor P., Nedoma J., Hejzlar J., Seďa J., Kopáček J., Boukal D., Mrkvička T. (2018) Multiple long-term trends and trend reversals dominate environmental conditions in a man-made freshwater reservoir Science of the Total Environment 624 : 24-33 .
DOI: 10.1016/j.scitotenv.2017.12.061
Znachor P., Nedoma J., Hejzlar J., Seďa J., Kopáček J., Boukal D., Mrkvička T. (2018) Multiple long-term trends and trend reversals dominate environmental conditions in a man-made freshwater reservoir. Science of Total Environment 624 : 24-33.
DOI: 10.1016/j.scitotenv.2017.12.061
Gabaldon Tebar C., Devetter M., Hejzlar J., Šimek K., Znachor P., Nedoma J., Seďa J. (2017) Repeated flood disturbance enhances rotifer dominance and diversity in a zooplankton community of a small dammed mountain pond Journal of Limnology 76 : 292–304 .
DOI: 10.4081/jlimnol.2016.1544
Hejzlar J., Jarošík J., Kopáček J., Vystavna Y. (2017) Koncentrace fosforu v nádržích Orlík a Slapy: výsledek socioekonomického vývoje v povodí a změny klimatu [Phosphorus concentration in the Orlík and Slapy reservoirs: a result of socio-economic trends in the catchment and climate change]. In: Kosour, D. et al. (edit.) Sborník konference Vodní nádrže 2017, 3.–4.10.2017, Brno, Povodí Moravy, s.p., ISBN 978-80-905368-5-2 60–67.
Kopáček J., Fluksová H., Hejzlar J., Kaňa J., Porcal P., Turek J. (2017) Changes in surface water chemistry caused by natural forest dieback in an unmanaged mountain catchment. Science of the Total Environment 584–585 : 971–981 .
DOI: 10.1016/j.scitotenv.2017.01.148
Kopáček J., Hejzlar J., Porcal P., Posch M. (2017) Trends in riverine element fluxes: A chronicle of regional socio-economic changes Water Research 125 : 374–383.
DOI: 10.1016/j.watres.2017.08.067
Kopáček J., Kaňa J., Bičárová S., Fernandez I., Hejzlar J., Kahounová M., Norton S., Stuchlík E. (2017) Climate change increasing calcium and magnesium leaching from granitic alpine catchments. Environmental Science & Technology 51 : 159–166.
DOI: 10.1021/acs.est.6b03575
Kubečka J., Boukal D.S. , Baran R., Blabolil P., Čech M., Draštík V., Frouzová J., Hejzlar J., Jůza T., Matěna J., Muška M., Prchalová M., Říha M., Šmejkal M., Tušer M., Vašek M., Vejříková I. (2017) Může Lipno uspokojit všechny? [Can Lipno satisfy everyone] Rybářství 2017 (4) : 52-54.

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CONTACT

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

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