RNDr. Marek Šmejkal, Ph.D.

Job Position: Research Scientist - Department of Fish and Zooplankton Ecology (FZE)

Contact details

Phone: +420 387 77 5856, +420 778 485 295
E-mail: marek.smejkal@hbu.cas.cz
Room: 327NB


I am interested in causes and consequences of various migration strategies of cyprinid fish termed asp (Leuciscus aspius). Males of this species are protandric, meaning that they arrive earlier and leave the spawning ground later on the seasonal and also partly on daily basis. Since asp is long-lived iteroparous species, I am interested how reproductive strategies of males and females change with their experience. Because cyprinid fish species have generally good sense of olfaction, asp ongoing project also investigates whether females communicate their readiness to spawn to males by pheromone release. We also adress effect of hydropeaking on the eggs of preophilous fish, which are periodically swept down by hydropeaking events on the study site. 

Curriculum vitae

Date of birth:

9.3.1988, Prague, Czech Republic


2007-2010 BSc. Faculty of Science of Charles University in Prague, CR(Thesis: The importance of various types of habitats in reservoirs for fish).

2010-2013 MSc. Faculty of Science University of South Bohemia, CR (Thesis: The importance of various types of littoral habitats for fish in reservoirs).

2013-2017 PhD. student, Faculty of Science University of South Bohemia, CR (Thesis:Ecology of top fish predators, European catfish and asp, with consequences to fish communities)

10. 9. – 29. 9. 2013 and 1. 10. - 18. 12. 2015 – study visit in Lund University, Sweden (Department of aquatic ecology)

Scientific and proffesional experience:

2009 - 2017 part-time job as a student at the Institute of Hydrobiology

2017 - 2019 - postdoc at the Institute of Hydrobiology

since 2020 researcher position at the Institute of Hydrobiology

Web of Science ResearcherID: E-1269-2017, Total publications: 31, H-index: 7, Sum of times cited: 122, Without self citations: 100

Projects - main investigator

TJ02000012 The enhancement of rheophilous fish reproduction in the artificial river environment, TACR

QK1920326 Aquaculture of rheophilous fish, GA MZe (main investigator for Biology centre)

580300/992200 Strategie AV 21, Role of pheromones on spawning migration timing in fish (2017-2019, Czech Academy of Science)


Total found: 63 records
Anton - Pardo M., Muška M., Jůza T., Vejříková I., Vejřík L., Blabolil P., Čech M., Draštík V., Frouzová J., Holubová M., Říha M., Sajdlová Z., Šmejkal M., Peterka J. (2021) Diel changes in vertical and horizontal distribution of cladocerans in two deep lakes during early and late summer Science of the Total Environment 751 : 141601.
DOI: doi.org/10.1016/j.scitotenv.2020.141601
Baran R., Blabolil P., Čech M., Draštík V., Frouzová J., Holubová M., Jůza T., Koliada I. , Muška M., Peterka J., Prchalová M., Říha M., Sajdlová Z., Šmejkal M., Tušer M., Vejřík L., Kubečka J. (2021) New way to investigate fish density and distribution in the shallowest layers of the open water. Fisheries Research 238 : 105907.
DOI: 10.1016/j.fishres.2021.105907
Bartoň D., Bretón F., Blabolil P., Souza A., Vejřík L., Sajdlová Z., Kolařík T., Kubečka J., Šmejkal M. (2021) Effects of hydropeaking on the attached eggs of a rheophilic cyprinid species. Ecohydrology 14 : e2280.
DOI: 10.1002/eco.2280
Blabolil P., Čech M., Draštík V., Holubová M., Kočvara L., Kubečka J., Muška M., Prchalová M., Říha M., Sajdlová Z., Šmejkal M., Tušer M., Vašek M., Vejřík L., Vejříková I., Peterka J., Jůza T. (2021) Less is more – Basic quantitative indices for fish can be achieved with reduced gillnet sampling. Fisheries Research 240 : 105983.
DOI: 10.1016/j.fishres.2021.105983
Jůza T., Blabolil P., Bartoň D., Čech M., Draštík V., Frouzová J., Holubová M., Ketelaars H.A.M. , Kočvara L., Kubečka J., Muška M., Prchalová M., Říha M., Sajdlová Z., Šmejkal M., Tušer M., Vašek M., Vejřík L., Vejříková I., Wagenvoort A.J., Peterka J. (2021) Recovery of the ruffe (Gymnocephalus cernua) population after an invasion boom of round goby (Neogobius melanostomus) in De Gijster Lake (the Netherlands). Aquatic Invasions 16 : 499-511.
DOI: 10.3391/ai.2021.16.3.07
Lennox R.J. , Westrelin S., Souza A., Šmejkal M., Říha M., Prchalová M., Nathan R., Koeck B., Killen S., Jarić I., Gjelland K., Hollins J., Hellstrom G., Hansen H., Cooke S.J., Boukal D., Brooks J.L., Brodin T., Baktoft H., Adam T., Arlinghaus R. (2021) A role for lakes in revealing the nature of animal movement using high dimensional telemetry systems. Movement Ecology 9 : 40.
DOI: 10.1186/s40462-021-00244-y
Říha M., Gjelland K.O., Děd V., Eloranta A.P., Rabaneda Bueno R., Baktoft H., Vejřík L., Vejříková I., Draštík V., Šmejkal M., Holubová M., Jůza T., Rosten C., Sajdlová Z., Økland F., Peterka J. (2021) Contrasting structural complexity differentiate hunting strategy in an ambush apex predator. Scientific Reports 11 : 17472.
DOI: 10.1038/s41598-021-96908-1
Šmejkal M., Bartoň D., Brabec M., Sajdlová Z., Souza A., Ribeiro de Moraes K., Soukalová K., Blabolil P., Vejřík L., Kubečka J. (2021) Climbing up the ladder: male reproductive behaviour changes with age in a long-lived fish. Behavioral Ecology and Sociobiology 75 : 22.
DOI: doi.org/10.1007/s00265-020-02961-7
Blabolil P., Bartoň D., Halačka K., Kočvara L., Kolařík T., Kubečka J., Šmejkal M., Peterka J. (2020) The fate of 0+ asp (Leuciscus aspius) after being stocked in a reservoir Biologia 75 : 989-996.
DOI: doi.org/10.2478/s11756-019-00355-3
Blabolil P., Hänfling B., Harper L.R., Sellers G., Di Muri C., Knežević Jarić J., Jůza T., Vašek M., Sajdlová Z., Čech M., Šmejkal M., Muška M., Fiala I., Lisnerová M., Peterka J. (2020) Environmentální DNA metabarkóding vody [Environmantal DNA water metabarcoding] Holubová, M. & Blabolil, P. (eds.) Sborník abstraktů z XVII. České rybářské a ichtyologické konference, České Budějovice, Biologické Centrum AV ČR, v.v.i. 19-25.
Blabolil P., Sajdlová Z., Knežević Jarić J., Jůza T., Vašek M., Čech M., Šmejkal M., Muška M., Říha M., Kubečka J., Fiala I., Lisnerová M., Peterka J. (2020) Další střípek do mozaiky poznání rybích společenstev. [Another piece of mosaic knowledge of fish communities.] Rybářství 11 : 40-45.
Jarić I., Roll U., Arlinghaus R. , Chen Y., Belmaker J., China V., Douda K., Essl F., Jähnig S.C., Jeschke J. M., Kalinkat G., Kalous L., Ladle R., Lennox R.J. , Rosa R., Sbragaglia V., Šmejkal M., Soriano-Redondo A., Sherren K., Souza A., Wolter C., Correia R.A. (2020) Expanding conservation culturomics and iEcology from terrestrial to aquatic realms PLoS Biology 18 : e3000935.
DOI: doi.org/10.1371/journal.pbio.3000935
Peterka J., Čech M., Draštík V., Jůza T., Sajdlová Z., Blabolil P., Vejřík L., Vejříková I., Šmejkal M., Holubová M., Kočvara L., Bartoň D., Kolařík T., Prachař Z., Říha M., Frouzová J., Muška M., Soukalová K., Prchalová M., Vašek M., Tušer M., Kubečka J. (2020) Ryby v rekultivovaných důlních jámách – udržení kvality vody a socioekonomický rozvoj [Fish in reclaimed post-mining pits - maintaining water quality and socio-economic development] Živa 5/2020 : 261-264.
Říha M., Šmejkal M. (2020) Rybám na stopě (6): Není ryba jako ryba [On a fish track: individual differences among fish] Rybářství 1 : 44-47.
Šmejkal M. (2020) Rybí (d)obyvatelé souše. [Fish conquerors of land.] Rybářství 8 : 90-93.
Šmejkal M. (2020) Jaký význam by mělo zavedení maximální lovné míry ryb? [What could be the impacts of maximum fish length limit introduction?] Rybářství 10 : 16-19.
Šmejkal M., Bartoň D. (2020) O lososech a lidech. [Of salmon and men.] Rybářství 2 : 92-95.
Šmejkal M., Bartoň D., Děd V., Souza A., Blabolil P., Vejřík L., Sajdlová Z., Říha M., Kubečka J. (2020) Negative feedback concept in tagging: Ghost tags imperil the long-term monitoring of fishes PLoS ONE 15 : e0229350.
DOI: 10.1371/journal.pone.0229350
Šmejkal M., Kolařík T., Bartoň D., Sajdlová Z., Blabolil P., Kočvara L. (2020) Ověření technologie: Využití univerzálních anténových systémů k detekci značených ryb ve větších vodách. [The application of antenna arrays for detection of tagged fish in large inland waters.] Biologické centrum AV ČR, v.v.i. 20pp..
Souza A., Soukalová K., Děd V., Šmejkal M., Blabolil P., Říha M., Jůza T., Vašek M., Čech M., Peterka J., Vejřík L., Vejříková I., Tušer M., Muška M., Holubová M., Boukal D.S. , Kubečka J. (2020) Ontogenetic and interpopulation differences in otolith shape of the European perch (Perca fluviatilis) Fisheries Research 230 : 105673.
DOI: doi.org/10.1016/j.fishres.2020.105673

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

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