Ing. Karel Halačka CSc.
Position grant funded researcher
Direction ichtyology
Workplace Research facility Brno
+420 543 422 532

Research intersts
- ecology, reproduction of fish, histochemistry and karyology,
- study of silver crucian carp (Carassius auratus gibelio) polyploid complex and its dynamics on the territory of the Czech Republic,
- reproduction of fishes, histology of their gonads and integumen,
- conservation of endangered fish species.
Running Projects
Finished projects
Education:
1979-1983: undergraduate study – Mendel University of Agriculture and Forestry, Brno, specialization fishery. Thesis: Influence of aflatoxins contaminated food on fry carp.
Employment
- 1985-1989: Ph.D. stay – Institute of Vertebrate Zoology, Department of Ichthyology, thesis: Histology, histochemistry and ultrastructure of fish epidermis.
- 1989–present: Institute of Vertebrate Biology AS CR – reserach scientist.
Publications and Applied outputs
2025
2024
2023
2022
2021
2020
2019
2018
2017
Halačka K, Muška M, Mendel J, Vetešník L (2017).
A newly discovered population of the Balkan spiny loach Sabanejewia balcanica (Karaman, 1922) in the River Jihlava, Czech Republic. Folia zoologica.
Lusk S, Halačka K, Májsky J, Vetešník L, Mendel J (2017).
Sekavčík balkánský (Sabanejewia balcanica) v České republice – minulost, současnost a budoucnost. Lampetra. Bulletin pro výzkum a ochranu biodiverzity vodních toků, 8: 90-102.
Lusk S, Koščo J, Lusková V, Halačka K, Mendel J, Košúth P (2017).
The nonindigenous fish Perccottus glenii in the Tisza River drainage, Eastern Slovakia – I. part: history of invasion, habitat associations and genetic characteristics (results up to the year 2006). Lampetra. Bulletin pro výzkum a ochranu biodiverzity vodních toků, 8: 127-143.
2016
2015
2014
2013
2012
Halačka K, Vítek T, Vetešník L, Spurný P (2012).
Epidermis structure and blood parameter differences between sculpin Cottus gobio and Siberian sculpin Cottus poecilopus from the Morava watershed. Folia zoologica.
2011
2010
Halačka K, Vetešník L, Mendel J, Papoušek I (2010).
Can spawning marks on females of the spined loach (Cobitis sp., Teleostei) be caused by scratches from males during mating?. Folia zoologica.
2009
2008
Flajšhans M, Rodina M, Halačka K, Vetešník L, Gela D, Lusková V, Lusk S (2008).
Charakteristika spermatu polyploidního karase stříbřitého, Carassius gibelio. Bulletin VÚRH Vodňany, 44: 78-81.
2007
Halačka K, Vetešník L, Lusk S, Mendel J, Papoušek I (2007).
The X1X1X2X2/X1X2Y multiple sex chromosome system in the Zingel zingel (Pisces: Perciformes) from the Morava River (Czech Republic). Caryologia.
Koščo J, Lusk S, Halačka K, Pekárik L, Košuthová L (2007).
Výskyt chránených a invázných druhov rýb v povodí Ipl’a. Natura Carpatica, 48: 141-152.
2006
2005
Koščo J, Lusk S, Halačka K, Lusková V, Košuth P (2005).
Distribution of species of the genus Gobio in the Tisza River drainage area, Slovakia. Folia zoologica.
Lusk S, Halačka K, Lusková V, Horák V (2005).
Distribution of Gobio species in the Czech Republic. Folia zoologica.
Mendel J, Lusková V, Halačka K, Lusk S, Vetešník L (2005).
Genetic diversity of Gobio gobio populations in the Czech Republic and Slovakia, based on RAPD markers. Folia zoologica.
Šlechtová V, Lusková V, Šlechta V, Halačka K, Lusk S, Koščo J (2005).
Intraspecific allozyme diversity of Gobio gobio in Czech and Slovak rivers. Folia zoologica.
2004
Horák V, Lusk S, Halačka K, Lusková V (2004).
Artificial wetlands - yes or no?. Ecohydrology & Hydrobiology.
Lusk S, Hartvich P, Halačka K, Lusková V, Holub M (2004).
Impact of extreme floods on fishes in rivers and their floodplains. Ecohydrology & Hydrobiology.
Lusk S, Koščo J, Lusková V, Halačka K, Košuth P (2004).
Alien fish species in the floodplains of the Dyje and the Bodrog rivers. Ecohydrology & Hydrobiology.
Lusková V, Halačka K, Vetešník L, Lusk S (2004).
Changes of ploidy and sexuality status of "Carassius auratus" populations in the drainage area of the River Dyje (Czech Republic). Ecohydrology & Hydrobiology.
Vetešník L, Lusk S, Halačka K, Spurný P (2004).
Morphometric characteristics and growth of Carassius auratus in the lower part of the River Dyje (Czech Republic). Ecohydrology & Hydrobiology.
2003
Halačka K, Lusková V, Lusk S (2003).
Carassius "gibelio" in the fish communities of the Czech Republic. Ecohydrology & Hydrobiology.
Lusk S, Lusková V, Halačka K, Smutný M (2003).
Anglers' catches as an indicator of fish population status. Ecohydrology & Hydrobiology.
Lusk S, Koščo J, Halačka K, Lusková V, Flajšhans M (2003).
Identification of Cobitis from the Slovakian part of the Tisza basin. Folia Biologica-Krakow.
2002
Lusk S, Lusková V, Halačka K, Horák V (2002).
Osteichthyes. Folia Facultatis Scientiarum Naturalium Universitatis Masarykianae Brunensis, 106: 29-49.
2001
2000
Halačka K, Lusková V, Lusk S (2000).
Fecundity of Cobitis elongatoides in the Nová Říše Reservoir. Folia zoologica.
Halačka K, Lusková V, Lusk S (2000).
Contribution to the occurrence of parasites in Cobitis elonatoides and Cobitis elongatoides x C. sp. Folia zoologica.
Lojkásek B, Lusk S, Halačka K, Lusková V (2000).
Fish communities in the drainage area of the Osoblaha river and effect of the 1997 flood. Czech Journal of Animal Science.
Lusk S, Lusková V, Halačka K (2000).
On the occurrence of populations of the genera Cobitis and Sabanejewia (Pisces, Cobitidae) in the Czech Republic. Folia zoologica.
Šlechtová V, Lusková V, Šlechta V, Lusk S, Halačka K, Bohlen J (2000).
Genetic differentiation of two diploid-polyploid complexes of spined loach, genus Cobitis (Cobitidae), in the Czech Republic, involving C. taenia, C. elongatoides and C. spp.: allozyme interpopulation and interspecific differences. Folia zoologica.
1999
Lusk S, Lusková V, Halačka K (1999).
Vývoj a stav ichtyofauny ve vodách Národního parku Podyjí. Thayensia, 2: 96-107.
Lusk S, Lusková V, Halačka K (1999).
Development and status of the ichthyofauna in the waters of the Podyjí National Park. Thayensia, 2: 108-119.
1998
Halačka K, Lusk S, Lusková V (1998).
Fish communities in artificial pools in the floodplain along the lower reaches of the River Dyje. Folia zoologica.
Lusk S, Lusková V, Halačka K, Šlechta V, Šlechtová V (1998).
Trends and production of a fish communities of the barbel zone in a stream of the Czech Republic. Folia zoologica.
Lusk S, Lusková V, Halačka K (1998).
The status of tench (Tinca tinca (L.)) in aquatic habitats of the floodplain along the lower reaches of the River Dyje (Czech Republic). Polskie Archiwum Hydrobiologii, 45: 407-414.
Lusk S, Halačka K, Lusková V (1998).
The effect of an extreme flood on the fish communities in the upper reaches of the Tichá Orlice River (The Labe drainage area). Czech Journal of Animal Science.
1997
Halačka K, Lusková V, Lusk S (1997).
Manifestations of senescence in the reproduction of nase, Chondrostoma nasus. Folia zoologica.
Lusk S, Halačka K, Jurajda P, Lusková V, Peňáz M (1997).
Diversity of fish communities in the waters of the Podyjí National Park. Živočišná výroba, 42: 269-275.
Lusk S, Halačka K, Lusková V (1997).
Vliv malých vodních elektráren na vodní toky a jejich rybí osídlení. Bulletin VÚRH Vodňany, 33: 111-119.
1996
Baruš V, Halačka K, Prokeš M (1996).
Presence and distribution of the nematode Anguillicola crassus in the European eel in the Morava River drainage basin, Czech Republic. Živočišná výroba, 41: 219-224.
Halačka K (1996).
Structure and histochemistry of the epidermis of Barbel (Barbus barbus). Folia zoologica.
Lusk S, Lusková V, Halačka K (1996).
Distribution of species of the family Percidae in the waters of the Czech republic. Acta Universitatis Carolinae, Biologica, 40: 139-145.
Lusk S, Halačka K, Lusková V, Pražák O (1996).
Fish assemblages of the "Soutok" area in Southern Moravia, Czech Republic. Acta Universitatis Carolinae, Biologica, 40: 147-155.
Lusková V, Halačka K (1996).
Some hematological indices in barbel, Barbus barbus. Folia zoologica.
1995
Halačka K, Lusk S (1995).
Mortality in eggs of nase, Chondrostoma nasus, during incubation. Folia zoologica.
Halačka K (1995).
Structure and histochemistry of the epidermis of nase (Chondrostoma nasus). Folia zoologica.
Halačka K, Lusková V (1995).
Interrelations and bioindicative application of epidermal, hematological and biochemical indices in grayling (Thymallus thymallus L.). Acta Universitatis Carolinae, Biologica, 39: 159-167.
Halačka K (1995).
Embryonic development of brown trout (Salmo trutta m. fario). Folia zoologica.
Lusk S, Halačka K (1995).
The river bottom and fish populations in streams. Folia Facultatis Scientiarum Naturalium Universitatis Masarykianae Brunensis, 91: 95-100.
Lusk S, Halačka K, Lusková V (1995).
Influence of small hydroelectric power stations on fish communities in streams. Živočišná výroba, 40: 363-367.
Lusk S, Halačka K (1995).
The first finding of the Tubenose Goby, Proterorhinus marmoratus, in the Czech Republic. Folia zoologica.
Lusk S, Halačka K (1995).
Anglers' catches as an indicator of population size of the nase, Chondrostoma nasus. Folia zoologica.
Lusková V, Halačka K, Lusk S (1995).
Dynamics of the haemogram in the nase, Chondrostoma nasus. Folia zoologica.
Lusková V, Lusk S, Halačka K (1995).
Yearly dynamics of enzyme activities and metabolite concentrations in blood plasma of Chondrostoma nasus. Folia zoologica.
1994
Halačka K, Jurajda P (1994).
Charakteristika elektrolovných zařízení pro odlov ryb. Živočišná výroba, 39: 733-741.