Mgr. Markéta Ondračková Ph.D.

Position full-time researcher
Direction fish parasitology

+420 543 422 522

Research interests

  • biology and ecology of freshwater fish metazoan parasites,
  • invasive biology; parasites and life history traits of non-native fish species,
  • fish ecology; community ecology, diversity and population dynamics of freshwater fishes.

Running Projects

Impact of non-native species on parasite diversity in aquatic ecosystems (2023–2025)

Finished projects

Genetic variability and parasitism in one of the most successful fish invader across in Europe (2020–2022)
Parasite acquisition by non-native fish hosts: determinants and impacts on native fish fauna (2020–2022)
The role of parasites during the invasion process of Ponto-Caspian gobies (2012–2014)
Parasitism and invasive species: effect of parasite infection on the biology of Neogobius kessleri in its native and introduced range (2005–2006)

Education

  • 1996-2000: undergraduate study – Masaryk University Brno, Faculty of Science, Systematic zoology and ecology.
  • 200-2004: PhD study – Masaryk University Brno, Faculty of Science, Parasitology.

Employment

  • 2001-2004: IVB ASCR, research assistant,
  • 2005-present:  IVB ASCR, research scientist,
  • 2003-2018: IBZ, Faculty of Science MU, research assistant,
  • 2011-2016: maternity leave.

International experience and current cooperation

  • Field research in Europe, Asia and Africa; Lab research in France, UK.
  • Dr. T. Trichkova; Institute of Biodiversity and Ecosystem Research BAS, Sofia, Bulgaria.
  • Dr. J. Borcherding; University of Cologne, Grietherbusch Ecology Research Station, Germany.

Current PhD students

  • Markéta Pravdová: Relationship between parasite infection and fish host personality.

Former PhD student

  • Veronika Nezhybová (Michálková): Parasite-associated changes in fish host physiology and behaviour.
  • Kateřina Francová: Host-parasite interactions in 0+ juvenile fishes: effect of host, parasite and environmental characteristics.

Publications

2023

Kvach Y, Tkachenko M, Bartáková V, Kutsokon Y, Janáč M, Demchenko V, Ondračková M (2023). Parasite communities and genetic structure of non-native pumpkinseed, Lepomis gibbosus, in different Black Sea drainages of Ukraine. Knowledge and Management of Aquatic Ecosystems, 424: 1.
Ondračková M, Tkachenko M, Bartáková V, Bryjová A, Janáč M, Zięba G, Pyrzanowski K, Kvach Y (2023). Population genetic structure, parasite infection and somatic condition of pumpkinseed Lepomis gibbosus (Actinopterygii: Centrarchidae) in the Oder river basin. Journal of Fish Biology, 102: 426-442.

2022

Pravdová M, Kolářová J, Grabicová K, Randák T, Janáč M, Kvach Y, Jurajda P, Ondračková M (2022). Pharmaceutical contamination and biotic factors affecting parasitism in common carp (Cyprinus carpio). Aquaculture Research, 53: 4116-4127.

2021

Kvach Y, Tkachenko M, Bartáková V, Zięba G, Ondračková M (2021). The role of the non-indigenous pumpkinseed Lepomis gibbosus (Actinopterygii: Centrarchidae) in the life cycle of Bothriocephalus claviceps (Cestoda: Bothriocephalidae) in Europe. Parasitology Research, 120: 3163-3171.
Kvach Y, Tkachenko M, Seifertová M, Ondračková M (2021). Insights into the diversity, distribution and phylogeny of three ergasilid copepods (Hexanauplia: Ergasilidae) in lentic water bodies of the Morava river basin, Czech Republic. Limnologica, 91: 125922.
Ondračková M, Janáč M, Borcherding J, Grabowska J, Bartáková V, Jurajda P (2021). Non-native gobies share predominantly immature parasites with local fish hosts. Journal of Vertebrate Biology, 70:1205 21050.
Ondračková M, Bartáková V, Kvach Y, Bryjová A, Trichkova T, Ribeiro F, Carassou L, Martens A, Masson G, Zechmeister T, Jurajda P (2021). Parasite infection reflects host genetic diversity among non-native populations of pumpkinseed sunfish in Europe. Hydrobiologia, 848: 2169-2187.
Ondračková M, Bartáková V, Kvach Y (2021). Ophiotaenia europaea Odening, 1963 (Cestoda: Onchoproteocephalidea) adopts a North American brown bullhead catfish Ameiurus nebulosus Lesueur, 1819 as intermediate/paratenic host in Europe. BioInvasions Records, 10: 948-959.
Pravdová M, Ondračková M, Palíková M, Papežíková I, Kvach Y, Jurajda P, Bartáková V, Seidlová V, Němcová M, Mareš J (2021). Low-level pathogen transmission from wild to farmed salmonids in a flow-through fish farm. Acta Veterinaria Hungarica, 69: 338-346.
Pravdová M, Kolářová J, Grabicová K, Mikl L, Bláha M, Randák T, Kvach Y, Jurajda P, Ondračková M (2021). Associations between pharmaceutical contaminants, parasite load and health status in brown trout exposed to sewage effluent in a small stream. Ecohydrology & Hydrobiology, 21: 233-243.

2020

Kvach Y, Ondračková M (2020). Checklist of parasites for Ponto-Caspian gobies (Actinopterygii: Gobiidae) in their native and non-native ranges. Journal of Applied Ichthyology, 36: 472-500.
Kvach Y, Seifertová M, Carassou L, Ondračková M (2020). First record of the American cestode Proteocephalus ambloplitis (Leidy, 1887) (Proteocephalidae) in Europe. Journal of Helminthology, 94: e144.
Nezhybová V, Janáč M, Reichard M, Ondračková M (2020). Risk-taking behaviour in African killifish – a case of parasitic manipulation?. Journal of Vertebrate Biology, 69:1205 20022.
Nezhybová V, Reichard M, Methling C, Ondračková M (2020). Limited impacts of chronic eye fluke infection on the reproductive success of a fish host. Biological Journal of the Linnean Society, 129: 334-346.
Ondračková M, Pravdová M, Seifertová M, Přikrylová I, Kvach Y, Ribeiro F (2020). Onchocleidus principalis (Monogenea: Ancyrocephalidae) co-introduced to Europe with centrarchid fish. Acta Parasitologica, 65: 974-979.
Ondračková M, Seifertová M, Bryjová A, Leis E, Jurajda P (2020). Morphometric and genetic evidence for cryptic diversity of Gyrodactylus nebulosus (Monogenea) in non-native European populations of Ameiurus nebulosus and A. melas. Parasitology, 147: 1700-1711.

2019

Kvach Y, Ondračková M, Janáč M, Krasnovyd V, Seifertová M, Jurajda P (2019). Parasites of round goby, Neogobius melanostomus, currently invading the Elbe River. Oceanological and Hydrobiological Studies, 48: 56-65.
Kvach Y, Ondračková M, Seifertová M, Hulak B (2019). Gyrodactylus ginestrae n. sp. (Monogenea: Gyrodactylidae), a parasite of the big-scale sand smelt, Atherina boyeri Risso, 1810 (Actinopterygii: Atherinidae) from the Black Sea. Parasitology Research, 1148: 3315-3325.
Nezhybová V, Blažek R, Kašný M, Slamková D, Leontovyč R, Ondračková M (2019). Morphological and molecular characterization of Apatemon sp. infecting killifish in Mozambique. Parasitology International, 73: 101967.
Ondračková M, Fojtů J, Seifertová M, Kvach Y, Jurajda P (2019). Non-native parasitic copepod Neoergasilus japonicus (Harada, 1930) utilizes non-native fish host Lepomis gibbosus (L.) in the floodplain of the River Dyje (Danube basin). Parasitology Research, 118: 57-62.
Ondračková M, Kvach Y, Martens A, Jurajda P (2019). Limited parasite acquisition by non-native Lepomis gibbosus (Actinopterygii: Centrarchidae) at two ponds in the Upper Rhine basin, Germany. Journal of Helminthology, 93: 453-460.
Ondračková M, Všetičková L, Adámek Z, Kopeček L, Jurajda P (2019). Ecological plasticity of tubenose goby, a small invader in South Moravian waters. Hydrobiologia, 829: 217-235.
Yuryshynets V, Ondračková M, Kvach Y, Masson G (2019). Trichodinid ectoparasites (Ciliophora: Peritrichia) of non-native pumpkinseed (Lepomis gibbosus) in Europe. Acta Protozoologica, 58: 69-79.

2018

Kvach Y, Ondračková M, Trichkova T, Drobiniak O, Zamorov V, Jurajda P (2018). Parasitization of monkey goby, Neogobius fluviatilis (Pallas, 1814) (Actinopterygii: Gobiidae), at localities with different salinity levels. Oceanological and Hydrobiological Studies, 47: 376-383.
Kvach Y, Ondračková M, Kutsokon Y, Dzyziuk N (2018). New record of monogenean parasites on non-indigenous fishes in the Ukrainian Danube Delta. BioInvasions Records, 7: 65-72.
Kvach Y, Matvienko N, Bryjová A, Ondračková M (2018). Aquaculture as a possible vector in the spread of Posthodiplostomum centrarchi (Hoffman, 1958) (Digenea: Diplostomidae) in Europe. BioInvasions Records, 7: 427-432.
Kvach Y, Ondračková M, Janáč M, Jurajda P (2018). Methodological issues affecting the study of fish parasites. III. Effect of fish preservation method. Diseases of Aquatic Organisms, 127: 213-224.
Pravdová M, Ondračková M, Přikrylová I, Blažek R, Mahmoud Z, Gelnar M (2018). Dactylogyrids (Platyhelminthes: Monogenea) from Sudanese Labeo spp., with a description of Dogielius sennarensis n. sp. and a redescription of Dogielius flosculus Guégan, Lambert & Euzet, 1989. Helminthologia, 55: 306-321.

2017

Janáč M, Bryja J, Ondračková M, Mendel J, Jurajda P (2017). Genetic structure of three invasive gobiid species along the Danube-Rhine invasion corridor: similar distributions, different histories. Aquatic Invasions, 12: 551-564.
Kvach Y, Jurajda P, Bryjová A, Trichkova T, Ribeiro F, Přikrylová I, Ondračková M (2017). European distribution for metacercariae of the North American digenean Posthodiplostomum cf. minimum centrarchi (Strigeiformes: Diplostomidae). Parasitology International, 66: 635-642.
Kvach Y, Ondračková M, Bryjová A, Jurajda P (2017). Parasites as biological tags of divergence in Central European gudgeon populations (Actinopterygii: Cyprinidae: Gobioninae). Biologia, 72: 671-679.
Kvach Y, Ondračková M, Janáč M, Jurajda P (2017). The parasite community of round goby Neogobius melanostomus (Pallas, 1814) (Actinopterygii: Gobiidae) newly introduced into the upper Elbe. Knowledge and Management of Aquatic Ecosystems, 418: 19.
Kvach Y, Janáč M, Nehring S, Ondračková M, Jurajda P (2017). Parasite communities and infection levels of the invasive Chinese sleeper Perccottus glenii (Actinopterygii: Odontobutidae) from the Naab river basin, Germany. Journal of Helminthology, 91: 703-710.
Nezhybová V, Reichard M, Blažek R, Ondračková M (2017). Metazoan parasites of African annual killifish (Nothobranchiidae): abundance, diversity, and their environmental correlates. Biotropica, 49: 229-238.

2016

Kvach Y, Ondračková M, Jurajda P (2016). First report of metacercariae of Cyathocotyle prussica parasitising a fish host in the Czech Republic, Central Europe. Helminthologia, 53: 257-261.
Kvach Y, Ondračková M, Janáč M, Jurajda P (2016). Methodological issues affecting the study of fish parasites. II. Sampling method affects ectoparasite studies. Diseases of Aquatic Organisms, 121: 59-66.
Kvach Y, Ondračková M, Janáč M, Jurajda P (2016). Methodological issues affecting the study of fish parasites. I. Duration of live fish storage prior to dissection. Diseases of Aquatic Organisms, 119: 107-115.
Ondračková M (2016). Gyrodactylus proterorhini in its non-native range: distribution and ability to host-switch in freshwaters. Parasitology Research, 115: 3153-3162.

2015

Havlátová L, Ondračková M, Přikrylová I (2015). Monogenean parasites of Lepomis gibbosus Linnaeus introduced into the River Durance, France. Helminthologia, 52: 323-330.
Ondračková M, Valová Z, Hudcová I, Michálková V, Šimková A, Borcherding J, Jurajda P (2015). Temporal effects on host-parasite associations in four naturalized goby species living in sympatry. Hydrobiologia, 746: 233-243.
Ondračková M, Hudcová I, Dávidová M, Adámek Z, Kašný M, Jurajda P (2015). Non-native gobies facilitate the transmission of Bucephalus polymorphus (Trematoda). Parasites & Vectors, 8: 382.

2014

Francová K, Ondračková M (2014). Effect of habitat conditions on parasite infection in 0+juvenile perch (Perca fluviatilis L.) in two Czech reservoirs. Hydrobiologia, 721: 57-66.
Michálková V, Ondračková M (2014). Experimental evidence for parasite-induced over-winter mortality in juvenile Rhodeus amarus. Journal of Fish Biology, 84: 1377-1388.

2013

Francová K, Ondračková M (2013). Overwinter body condition, mortality and parasite infection in two size classes of 0+ year juvenile European bitterling Rhodeus amarus. Journal of Fish Biology, 82: 555-568.

2012

Blažek R, Ondračková M, Vošlajerová Bímová B, Vetešník L, Petrášová I, Reichard M (2012). Fish diversity in the Niokolo Koba National Park, middle Gambia River basin, Senegal. Ichthyological Exploration of Freshwaters, 23: 263-272.
Ondračková M, Valová Z, Kortan J, Vojtek L, Adámek Z (2012). Consequent effects of the great cormorant (Phalacrocorax carbo sinensis) predation on parasite infection and body condition of common carp (Cyprinus carpio). Parasitology Research, 110: 1487-1493.
Ondračková M, Šimková A, Civáňová K, Vyskočilová M, Jurajda P (2012). Parasite diversity and microsatellite variability in native and introduced populations of four Neogobius species (Gobiidae). Parasitology, 139: 1493-1505.
Ondračková M, Slováčková I, Trichkova T, Polačik M, Jurajda P (2012). Shoreline distribution and parasite infection of black-striped pipefish Syngnathus abaster Risso, 1827 in the lower River Danube. Journal of Applied Ichthyology, 28: 590-596.
Ondračková M, Matějusová I, Grabowska J (2012). Introduction of Gyrodactylus perccotti (Monogenea) into Europe on its invasive fish host, Amur sleeper (Perccottus glenii, Dybowski 1877). Helminthologia, 49: 21-26.
White SM, Ondračková M, Reichard M (2012). Hydrologic connectivity affects fish assemblage structure, diversity, and ecological traits in the unregulated Gambia River, West Africa. Biotropica, 44: 521-530.

2011

Borcherding J, Staas S, Krüger S, Ondračková M, Šlapanský L, Jurajda P (2011). Non-native Gobiid species in the lower River Rhine (Germany): recent range extensions and densities. Journal of Applied Ichthyology, 27: 153-155.
Červenka R, Bednařík A, Komárek J, Ondračková M, Jurajda P, Vítek T, Spurný P (2011). The relationship between the mercury concentration in fish muscles and scales/fins and its significance. Central European Journal of Chemistry, 9: 1109-1116.
Dávidová M, Blažek R, Trichkova T, Koutrakis E, Gaygusuz Ö, Ercan E, Ondračková M (2011). The role of the European bitterling (Rhodeus amarus, Cyprinidae) in parasite accumulation and transmission in riverine ecosystems. Aquatic Ecology, 45: 377-387.
Francová K, Ondračková M (2011). Host-parasite interactions in sympatric and allopatric populations of European bitterling. Parasitology Research, 109: 801-808.
Francová K, Ondračková M, Polačik M, Jurajda P (2011). Parasite fauna of native and non-native populations of Neogobius melanostomus (Pallas, 1814) (Gobiidae) in the longitudinal profile of the Danube River. Journal of Applied Ichthyology, 27: 879-886.
Ondračková M, Dávidová M, Přikrylová I, Pečínková M (2011). Monogenean parasites of introduced pumpkinseed Lepomis gibbosus (Centrarchidae) in the Danube River Basin. Journal of Helminthology, 85: 435-441.
Smith C, Ondračková M, Spence R, Adams S, Betts DS, Mallon E (2011). Pathogen-mediated selection for MHC variability in wild zebrafish. Evolutionary Ecology Research, 13: 589-605.

2010

Janáč M, Ondračková M, Jurajda P, Valová Z, Reichard M (2010). Flood duration determines the reproduction success of fish in artificial oxbows in a floodplain of a potamal river. Ecology of Freshwater Fish, 19: 644-655.
Ondračková M, Francová K, Dávidová M, Polačik M, Jurajda P (2010). Condition status and parasite infection of Neogobius kessleri and N. melanostomus (Gobiidae) in their native and non-native area of distribution of the Danube River. Ecological Research, 25: 857-866.
Reichard M, Polačik M, Tarkan AS, Spence R, Gaygusuz Ö, Ercan E, Ondračková M, Smith C (2010). The bitterling–mussel coevolutionary relationship in areas of recent and ancient sympatry. Evolution, 64: 3047-3056.
Wenger M, Ondračková M, Machala M, Neča J, Hyršl P, Šimková A, Jurajda P, von der Ohe P, Segner H (2010). Assessing relationships between chemical exposure, parasite infection, fish health, and fish ecological status: a case study using chub (Leuciscus cephalus) in the Bílina River, Czech Republic. Environmental Toxicology and Chemistry, 29: 453-466.

2009

Jurajda P, Janáč M, White S, Ondračková M (2009). Small – but not easy: evaluation of sampling methods in floodplain lakes including whole-lake sampling. Fisheries Research, 96: 102-108.
Ondračková M, Dávidová M, Blažek R, Gelnar M, Jurajda P (2009). The interaction between an introduced fish host and local parasite fauna: Neogobius kessleri in the middle Danube River. Parasitology Research, 105: 201-208.
Polačik M, Janáč M, Jurajda P, Adámek Z, Ondračková M, Trichkova T, Vassilev M (2009). Invasive gobies in the Danube: invasion success facilitated by availability and selection of superior food resources. Ecology of Freshwater Fish, 18: 640-649.
Reichard M, Ondračková M, Bryjová A, Smith C, Bryja J (2009). Breeding resource distribution affects selection gradients on male phenotypic traits: experimental study on lifetime reproductive success in the bitterling fish (Rhodeus amarus). Evolution, 63: 377-390.
Ryšavá-Nováková M, Ondračková M, Jurajda P (2009). The importance of surrogate habitats in lowland river floodplains for fish community composition. Fisheries Management and Ecology, 16: 468-477.

2008

Dávidová M, Ondračková M, Jurajda P, Gelnar M (2008). Parasite assemblages of European bitterling (Rhodeus amarus), composition and effects of habitat type and host body size. Parasitology Research, 102: 1001-1011.
Grabowska J, Pietraszewski D, Ondračková M (2008). Tubenose goby Proterorhinus marmoratus (Pallas, 1814) has joined three other Ponto-Caspian gobies in the Vistula River (Poland). Aquatic Invasions, 3: 261-265.
Šimková A, Lafond T, Ondračková M, Jurajda P, Ottová E, Morand S (2008). Parasitism, life history traits and immune defence in cyprinid fish from Central Europe. BMC Evolutionary Biology, 8: 1-11.

2007

Šimková A, Pečínková M, Řehulková E, Vyskočilová M, Ondračková M (2007). Dactylogyrus species parasitizing European Barbus species: morphometric and molecular variability. Parasitology, 134: 1751-1765.
Vyskočilová M, Ondračková M, Šimková A, Martin J (2007). Isolation and characterization of microsatellites in Neogobius kessleri (Perciformes, Gobiidae) and cross-species amplification within the family Gobiidae. Molecular Ecology Notes, 7: 701-704.

2006

Moravec F, Šimková A, Pečínková M, Ondračková M (2006). Morphology of Philometroides barbi (Nematoda: Philometridae), a rare tissue parasite of the Mediterranean barbel Barbus meridionalis (Osteichthyes). Diseases of Aquatic Organisms, 69: 265-268.
Ondračková M, Dávidová M, Gelnar M, Jurajda P (2006). Susceptibility of Prussian carp infected by metacercariae of Posthodiplostomum cuticola (v. Nordmann, 1832) to fish predation. Ecological Research, 21: 526-529.
Ondračková M, Trichkova T, Jurajda P (2006). Present and historical occurrence of metazoan parasites in Neogobius kessleri (Pisces: Gobiidae) in the Bulgarian section of the Danube River. Acta Zoologica Bulgarica, 58: 401-408.
Reichard M, Ondračková M, Przybylski M, Liu H, Smith C (2006). The costs and benefits in an unusual symbiosis: experimental evidence that bitterling fish (Rhodeus sericeus) are parasites of unionid mussels in Europe. Journal of Evolutionary Biology, 19: 788-796.

2005

Dávidová M, Ondračková M, Baruš V, Reichard M, Koubková B (2005). Nematode infections of the European bitterling (Rhodeus sericeus Pallas, 1776: Cypriniformes). Helminthologia, 42: 45-48.
Jurajda P, Černý J, Polačik M, Valová Z, Janáč M, Blažek R, Ondračková M (2005). The recent distribution and abundance of non-native Neogobius fishes in the Slovak section of the River Danube. Journal of Applied Ichthyology, 21: 319-323.
Ondračková M, Dávidová M, Pečínková M, Blažek R, Gelnar M, Valová Z, Černý J, Jurajda P (2005). Metazoan parasites of Neogobius fishes in the Slovak section of the River Danube. Journal of Applied Ichthyology, 21: 345-349.
Ottová E, Šimková A, Jurajda P, Dávidová M, Ondračková M, Pečínková M, Gelnar M (2005). Sexual ornamentation and parasite infection in males of common bream (Abramis brama): a reflection of immunocompetence status or simple cost of reproduction?. Evolutionary Ecology Research, 7: 581-593.
Reichard M, Bryja J, Ondračková M, Dávidová M, Kaniewska P, Smith C (2005). Sexual selection for male dominance reduces opportunities for female mate choice in the European bitterling (Rhodeus sericeus). Molecular Ecology, 14: 1533-1542.

2004

Jurajda P, Ondračková M, Reichard M (2004). Managed flooding as a tool for supporting natural fish reproduction in man-made lentic waterbodies. Fisheries Management and Ecology, 11: 237-242.
Ondračková M, Šimková A, Gelnar M, Jurajda P (2004). Posthodiplostomum cuticola (Digenea: Diplostomatidae) in intermediate fish hosts: factors contributing to the parasite infection and prey selection by the definitive bird host. Parasitology, 129: 761-770.
Ondračková M, Bartošová Š, Valová Z, Jurajda P, Gelnar M (2004). Occurrence of black-spot disease caused by metacercariae of Posthodiplostomum cuticola among juvenile fishes in water bodies in the Morava River basin. Acta Parasitologica, 49: 222-227.
Ondračková M, Matějusová I, Šimková A, Gelnar M (2004). New reports of dactylogyridean species (Monogenea) for Central Europe. Helminthologia, 41: 139-145.
Ondračková M, Reichard M, Jurajda P, Gelnar M (2004). Seasonal dynamics of Posthodiplostomum cuticola (Digenea, Diplostomatidae) metacercariae and parasite-enhanced growth of juvenile host fish. Parasitology Research, 93: 131-136.

2002

Ondračková M, Jurajda P, Gelnar M (2002). The distribution of Posthodiplostomum cuticola matacercariae in young-of-the-year cyprinid fishes. Journal of Fish Biology, 60: 1355-1357.
Reichard M, Jurajda P, Ondračková M (2002). The effect of light intensity on the drift of young-of-the year cyprinid fishes. Journal of Fish Biology, 61: 1063-1066.
Reichard M, Jurajda P, Ondračková M (2002). Interannual variability in seasonal dynamics and species composition of drifting young-of-the-year fishes in two European lowland rivers. Journal of Fish Biology, 60: 87-101.
Šimková A, Ondračková M, Gelnar M, Morand S (2002). Morphology and coexistence of congeneric ectoparasite species: reinforcement of reproductive isolation?. Biological Journal of the Linnean Society, 76: 125-135.

2001

Bartošová Š, Jurajda P, Ondračková M, Reichard M (2001). Importance of lentic waterbodies as fish nurseries in the flood plain of the Dyje River, Czech Republic. Ecohydrology & Hydrobiology, 1: 347-353.