Alien fish species in the Czech Republic and their impact on the native fish fauna

Lusk, Stanislav; Lusková, V.; Hanel, Lubomír

doi:10.25225/fozo.v59.i1.a9.2010

Cited by 91 publications

(71 citation statements)

References 39 publications

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“…Besides its negative impact on the natural populations of small cyprinids in small water bodies (Lusk et al 2010), P. parva is an important food competitor for pond fish species . The species has been described as an omnivore (Muchačeva 1950;Šebela & Wohlgemuth 1984;Weber 1984), but has also been considered as planktivorous (Rosecchi et al 1993;Priyadarshana et al 2001;Sunardi et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Impact of topmouth gudgeon (Pseudorasbora parva) on production of common carp (Cyprinus carpio) — question of natural food structure

et al. 2014

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Four production fishponds in the Czech Republic were investigated in 2003 and 2004 during a feeding experiment on common carp (Cyprinus carpio). In 2003, topmouth gudgeon (Pseudorasbora parva) was detected in enormous amounts in all of the investigated fishponds. P. parva got into the fishponds spontaneously by water inflow from connecting channels. The objective of this paper is to describe the condition of natural food in the presence of P. parva and its subsequent effect on carp production. The estimation of the population density of P. parva achieved at least 44 kg ha −1 in 2003. In 2004, precautions against P. parva invasion were taken and its presence wasn't recorded during the season. The impact of P. parva on natural food structure was described in terms of zooplankton and zoobenthos amounts and main fish production parameters. A special focus has been taken on the density of Daphnia genus and chironomid larvae, the most preferred zooplanktonic and zoobenthic groups in feed of P. parva, respectively. In 2003, P. parva suppressed the zooplankton populations significantly, especially large cladocerans of the Daphnia genus. Influence of P. parva on zoobenthos structure and density was not detectable. Unfavorable natural food condition in 2003 caused extremely low carp production which fell to the mean value of 283 kg ha −1 and food conversion ratio reached 3.5. On the contrary, in 2004 the mean carp production and food conversion ratio attained 634 kg ha −1 and 1.6, respectively. The results described harmful competitive effect of huge populations of P. parva and its surprising economic consequences. Costs per 1 kg of growth were increased by approximately 100% in 2003 compared with results from season 2004.

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Section: Introductionmentioning

confidence: 99%

Impact of topmouth gudgeon (Pseudorasbora parva) on production of common carp (Cyprinus carpio) — question of natural food structure

et al. 2014

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“…In other European countries, the first period is similar to that in Slovakia. In the second period, the number of introductions has gradually increased up to the present (Crivelli 1995;Elvira & Almodovar 2001;Copp et al 2007;Hesthagen & Sandlund 2007;Verreycken et al 2007;Lusk et al 2010). …”

Section: Resultsmentioning

confidence: 99%

“…With regard to the number of introduced fish species, Czechoslovakia with 36 non-native fishes (24 exotic and 12 translocated) occupied the 3 rd position while, in relation to the area of the country, it occupied the 14 th position. It was mainly the Czech Republic that, as the part of the former common state (Czechoslovakia), was the source of introductions carried out in Slovakia (Lusk et al 2010). Furthermore, Hungary was also the source of the spontaneous spreading of exotic invasive species such as Ameiurus nebulosus, Ameiurus melas, Carassius gibelio, Pseudorasbora parva, Lepomis gibbosus, Gasterosteus aculeatus and Table 2.…”

Section: Present Statusmentioning

confidence: 99%

Non-native fish species in Slovak waters: origins and present status

et al. 2010

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Abstract:Freshwater fishes recorded in the territory of Slovakia include 95 fish species. As many as one third of these are allochthonous fish species belonging to 14 families, among which several have not occurred in Slovakia recently. Historically, there were three main periods of introduction: the first is the beginning of the 20 th century, the second includes two decades between 1955 and 1975 and the third period is from the year 1990 up to the present time. The origins of the exotic species seen in Slovakia are the four continents -Africa (3), North America (7), Central America (3), and Asia (13) and ten of them are from different regions in Europe. The purpose of intentional introductions of non-native species was to occupy vacant ecological niches in the ecosystems reshaped by human activities, fish stocking, angling or fish farming. Some of these species spread from their original ranges or they penetrated spontaneously from the adjacent countries via the river network system. At the present time, 76 fish species in total form populations in Slovakia. There are 54 autochthonous and 22 allochthonous species, 14 of them are exotic fishes. The invasive characters in 13 fish species were considered, the recent native/total fish ratio is 0.71.

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“…They are increasingly often recognised both in Poland (Witkowski 2002, Grabowska et al 2010) and in other regions, but their complete and objective assessment is not always possible (Cowx 1997, Bartley and Casal 1998, Cowx and Gerdeaux 2004, Van Zyll de Jong et al 2004, Casal 2006, Uzunova and Zlatanova 2007, Gozlan 2008, Lusk et al 2010. Moyle et al (1986) termed the impact of introduced fishes on native species the "Frankenstein effect".…”

Section: Resultsmentioning

confidence: 99%

The Non-Indigenous Freshwater Fishes of Poland: Threats to the Native Ichthyofauna and Consequences for the Fishery: A Review

Witkowski¹,

Grabowska²

2012

Acta Icth et Piscat

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Alien fish species in the Czech Republic and their impact on the native fish fauna

Cited by 91 publications

References 39 publications

Impact of topmouth gudgeon (Pseudorasbora parva) on production of common carp (Cyprinus carpio) — question of natural food structure

Impact of topmouth gudgeon (Pseudorasbora parva) on production of common carp (Cyprinus carpio) — question of natural food structure

Non-native fish species in Slovak waters: origins and present status

The Non-Indigenous Freshwater Fishes of Poland: Threats to the Native Ichthyofauna and Consequences for the Fishery: A Review

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