Mgr. Matej Polačik, Ph.D.

Position: full-time researcher
Research topics: ecology of fish
Department: Research facility Brno
Phone: +420 543 422 557

Finished Projects

Adaptive coexistence of distinct life history strategies in fish of the genus Nothobranchius



Blažek R., Polačik M., Kačer P., Cellerino A., Řežucha R., Methling C., Tomášek O., Syslová K., Terzibasi Tozzini E., Albrecht T., Vrtílek M., Reichard M.: Repeated intraspecific divergence in life span and aging of African annual fishes along an aridity gradient, Evolution 71 (2017) 386-402.

Janáč M., Roche K., Šlapanský L., Polačik M., Jurajda P.: Long-term monitoring of native bullhead and invasive gobiids in the Danubian rip-rap zone, Hydrobiologia (2017) .

Polačik M., Smith C., Reichard M.: Maternal source of variability in the embryo development of an annual killifish, Journal of Evolutionary Biology 30 (2017) 738-749.

Polačik M., Janáč M.: Costly defense in a fluctuating environment-sensitivity of annual Nothobranchius fishes to predator kairomones, Ecology and Evolution 7 (2017) 4289-4298.

Reichard M., Blažek R., Polačik M., Vrtílek M.: Hatching date variability in wild populations of four coexisting species of African annual fishes, Developmental Dynamics 246 (2017) 827-837.

Reichard M., Janáč M., Polačik M., Blažek R., Vrtílek M.: Community assembly in Nothobranchius annual fishes: nested patterns, environmental niche and biogeographic history, Ecology and Evolution 7 (2017) 2294-2306.

Vrtílek M., Polačik M., Reichard M.: The role of energetic reserves during embryonic development of an annual killifish, Developmental Dynamics 246 (2017) 838-847.


Lanés L. E. K., Godoy R. S., Maltchik L., Polačik M., Blažek R., Vrtílek M., Reichard M.: Seasonal dynamics in community structure, abundance, body size and sex ratio in two species of Neotropical annual fishes, Journal of Fish Biology 89 (2016) 2345-2364.

Polačik M., Blažek R., Reichard M.: Laboratory breeding of the short-lived annual killifish Nothobranchius furzeri, Nature Protocols 11 (2016) 1396-1413.


Bartáková V., Reichard M., Blažek R., Polačik M., Bryja J.: Terrestrial fishes: rivers are barriers to gene flow in annual fishes from the African savanna, Journal of Biogeography 42 (2015) 1832-1844.

Polačik M., Jurajda P., Blažek R., Janáč M.: Carcass feeding as a cryptic foraging mode in round goby Neogobius melanostomus, Journal of Fish Biology 87 (2015) 194-199.

Reichard M., Douda K., Przybylski M., Popa O. P., Karbanová E., Matasová K., Rylková K., Polačik M., Blažek R., Smith C.: Population-specific responses to an invasive species, Proceedings of the Royal Society. B - Biological Sciences 282 (2015) 167-174.


Polačik M., Blažek R., Řežucha R., Vrtílek M., Terzibasi Tozzini E., Reichard M.: Alternative intrapopulation life-history strategies and their trade-offs in an African annual fish, Journal of Evolutionary Biology 27 (2014) 854-865.

Polačik M., Harrod C., Blažek R., Reichard M.: Trophic niche partitioning in communities of African annual fish: evidence from stable isotopes, Hydrobiologia 721 (2014) 99-106.

Reichard M., Polačik M., Blažek R., Vrtílek M.: Female bias in the adult sex ratio of African annual fishes: interspecific differences, seasonal trends and environmental predictors, Evolutionary Ecology 28 (2014) 1105-1120.

Smith C., Phillips A., Polačik M., Reichard M.: Male coloration signals direct benefits in the European bitterling (Rhodeus amarus), Environmental Biology of Fishes 97 (2014) 335-341.


Bartáková V., Reichard M., Janko K., Polačik M., Blažek R., Reichwald K., Cellerino A., Bryja J.: Strong population genetic structuring in an annual fish, Nothobranchius furzeri, suggests multiple savannah refugia in southern Mozambique, BMC Evolutionary Biology 13 (2013) 196.

Blažek R., Polačik M., Reichard M.: Rapid growth, early maturation and short generation time in African annual fishes, EvoDevo 4 (2013) 24.

Jurajda P., Všetičková L., Polačik M., Vassilev M.: Can round goby (Neogobius melanostomus) caught by rod and line be used for diet analysis?, Journal of Great Lakes Research 39 (2013) 182-185.

Terzibasi Tozzini E., Dorn A., Ng’oma E., Polačik M., Blažek R., Reichwald K., Petzold A., Watters B. R., Reichard M., Cellerino A.: Parallel evolution of senescence in annual fishes in response to extrinsic mortality, BMC Evolutionary Biology 13 (2013) 77.


Ondračková M., Slováčková I., Trichkova T., Polačik M., Jurajda P.: Shoreline distribution and parasite infection of black-striped pipefish Syngnathus abaster Risso, 1827 in the lower River Danube, Journal of Applied Ichthyology 28 (2012) 590-596.

Polačik M., Janáč M., Vassilev M., Trichkova T.: Morphometric comparison of native and non-native populations of round goby Neogobius melanostomus from the River Danube, Folia zoologica 61 (2012) 1-8.


Dorn A., Ng'oma E., Janko K., Reichwald K., Polačik M., Platzer M., Cellerino A., Reichard M.: Phylogeny, genetic variability and colour polymorphism of an emerging animal model: the short-lived annual Nothobranchius fishes from southern Mozambique, Molecular Phylogenetics and Evolution 61 (2011) 739-749.

Francová K., Ondračková M., Polačik M., Jurajda P.: 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 (2011) 879-886.

Polačik M., Reichard M.: Asymmetric reproductive isolation between two sympatric annual killifish with extremely short lifespans, PLoS ONE 6 (2011) .

Polačik M., Donner M. T., Reichard M.: Age structure of annual Nothobranchius fishes in Mozambique: is there a hatching synchrony?, Journal of Fish Biology 78 (2011) 796-809.

Reichard M., Bryja J., Polačik M., Smith C.: No evidence for host specialization or host-race formation in the European bitterling (Rhodeus amarus), a fish that parasitizes freshwater mussels, Molecular Ecology 20 (2011) 3631-3643.


Ondračková M., Francová K., Dávidová M., Polačik M., Jurajda P.: 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 (2010) 857-866.

Polačik M., Reichard M.: Diet overlap among three sympatric African annual killifish species (Nothobranchius spp.) from Mozambique, Journal of Fish Biology 77 (2010) 754-768.

Reichard M., Polačik M.: Reproductive isolating barriers between colour-differentiated populations of an African annual killifish, Nothobranchius korthausae (Cyprinodontiformes), Biological Journal of the Linnean Society 100 (2010) 62-72.

Reichard M., Polačik M., Tarkan A. S., Spence R., Gaygusuz Ö., Ercan E., Ondračková M., Smith C.: The bitterling–mussel coevolutionary relationship in areas of recent and ancient sympatry, Evolution 64 (2010) 3047-3056.

Reichard M., Watters B. R., Wildekamp R. H., Sonnenberg R., Nagy B., Polačik M., Valdesalici S., Cellerino A., Cooper B. J., Hengstler H., Rosenstock J., Sainthouse I.: Potential negative impacts and low effectiveness in the use of African annual killifish in the biocontrol of aquatic mosquito larvae in temporary water bodies, Parasites & Vectors 3 (2010) 89.


Polačik M., Reichard M.: Indirect fitness benefits are not related to male dominance in a killifish, Behavioral Ecology and Sociobiology 63 (2009) 1427-1435.

Polačik M., Janáč M., Jurajda P., Adámek Z., Ondračková M., Trichkova T., Vassilev M.: Invasive gobies in the Danube: invasion success facilitated by availability and selection of superior food resources, Ecology of Freshwater Fish 18 (2009) 640-649.

Reichard M., Polačik M., Sedláček O.: Distribution, colour polymorphism and habitat use of the African killifish, Nothobranchius furzeri, the vertebrate with the shortest life span, Journal of Fish Biology 74 (2009) 198-212.


Polačik M., Trichkova T., Janáč M., Vassilev M., Jurajda P.: The ichthyofauna of the shoreline zone in the longitudinal profile of the Danube River, Bulgaria, Acta Zoologica Bulgarica 60 (2008) 77-88.

Polačik M., Janáč M., Jurajda P., Vassilev M., Trichkova T.: The sampling efficiency of electrofishing for Neogobius species in a riprap habitat: a field experiment, Journal of Applied Ichthyology 24 (2008) 601-604.

Polačik M., Janáč M., Trichkova T., Vassilev M., Keckeis H., Jurajda P.: The distribution and abundance of the Neogobius fishes in their native range (Bulgaria) with notes on the non-native range in the Danube River, Large Rivers 18 (2008) 193-208.