Abundance of Cottus poecilopus is influenced by <scp>O2</scp> saturation, food density and Salmo trutta in three tributaries of the Rožnovská Bečva River, Czech Republic

Baran, Roman; Kubečka, Jan; Kubín, Miroslav; Lojkásek, Bohumír; Mrkvička, Tomáš; Ricard, D.; Rulı́k, Martin

doi:10.1111/jfb.12565

Cited by 4 publications

(4 citation statements)

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“…Genetic study in Simulium tani also showed that nucleotide diversity was strongly correlated to the levels of dissolved oxygen in the streams (Low, Adler, & Takaoka, ). The cold water fish Cottus poecilopus was also reported to be abundant in streams with high oxygen saturation and high abundance of macroinvertebrates (Baran et al, ). Another study of aquatic organisms found that among‐pond variation in community structure of freshwater zooplankton was partially explained by pH and dissolved oxygen (HolmesSingh, ).…”

Section: Discussionmentioning

confidence: 99%

“…The cold water fish Cottus poecilopus was also reported to be abundant in streams with high oxygen saturation and high abundance of macroinvertebrates (Baran et al, 2015). Another study of aquatic organisms found that among-pond variation in community structure of freshwater zooplankton was partially explained by pH and dissolved oxygen (HolmesSingh, 2016).…”

Section: Influence Of Environmentmentioning

confidence: 99%

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Comprehensive analysis of population genetics of Phoxinus phoxinus ujmonensis in the Irtysh River: Abiotic and biotic factors

Xie

Zhao

Niu³

et al. 2019

Ecology and Evolution

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As a widely distributed species along the Irtysh River, Phoxinus phoxinus ujmonensis (Kaschtschenko, 1899) was used as a model to investigate genetic diversity and population structure as well as the influence of environmental factors on population genetics. In this study, we specifically developed 12 polymorphic microsatellite loci. The analysis of microsatellite and mtDNA markers revealed a high and a moderate genetic diversity across seven populations, respectively. Moderate differentiation was also detected among several populations, indicating the impact of habitat fragmentation and divergence. The absence of isolation by distance implied an extensive gene flow, while the presence of isolation by adaptation implied that these populations might be in the process of adapting to divergent habitats. Correlation analysis showed that abiotic factors like dissolved oxygen, pH, total dissolved solids, and conductivity in water as well as biotic factors like plankton diversity and fish species diversity had impact on genetic diversity and divergence in P. phoxinus ujmonensis populations. The results of this study will provide an insight into the effect of environmental factors on genetic diversity and contribute to the study of population genetics of sympatric species.

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Section: Discussionmentioning

confidence: 99%

Section: Influence Of Environmentmentioning

confidence: 99%

Comprehensive analysis of population genetics of Phoxinus phoxinus ujmonensis in the Irtysh River: Abiotic and biotic factors

Xie

Zhao

Niu³

et al. 2019

Ecology and Evolution

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“…Since variability of water depth can be used as a measure of heterogeneity taking into account microhabitat diversity (Van Liefferinge et al ), meandering and pool‐riffle structures can be seen as predictors for habitat suitability. Furthermore, Baran et al () showed that the abundance of Cottus poecilopus (Alpine bullhead) differed significantly with the water quality (e.g. dissolved oxygen saturation), density of macro‐invertebrates, and the abundance of Salmo trutta (brown trout).…”

Section: Discussionmentioning

confidence: 99%

Microhabitat suitability as a tool to improve the success rate of a translocation or reintroduction, case‐study of the bullhead (Cottus perifretum) in Flanders, Belgium

Liefferinge

Dillen

Vught

et al. 2018

Restoration Ecology

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Microhabitat suitability models are useful tools to enhance the reintroduction success of fish. Since 2008, a translocation and reintroduction program has been carried out in Flanders to prevent substantial loss of genetic variability in the Cottus perifretum (bullhead) population, and to meet the goals set by the Habitat Directive. To this end, habitat suitability of potential headstreams was assessed on a macrohabitat and microhabitat scale prior to the reintroduction. On a macrohabitat scale, water quality, habitat structure, food availability, and fish community were screened. Based on microhabitat models for bullhead in the summer period, microhabitat suitability was assessed in headstreams where macrohabitat characteristics showed a high potential for success. Both macro-and microhabitat assessment showed that reintroduction of bullheads in the Nellebeek, Bruelbeek, and Mollendaalbeek would most likely lead to self-sustaining populations. For the Sint-Annabeek, the microhabitat suitability model, considering depth and stream velocity, estimates that 7.5-9.5% of the headstream is suitable for bullhead. However, when substratum is taken into account, the microhabitat suitability index shows that only 4.3-5.8% of the brook is suitable. The current habitat quality and quantity in the Sint-Annabeek is estimated to support a mean total population of 812 bullheads. However, the microhabitat suitability can be substantially improved by the artificial deposition of medium-sized gravel (5-50 mm) and large gravel (50-100 mm). By doing so, the mean estimated population size could increase up to 1,330 individuals. Our results show that habitat improvement is necessary prior to the reintroduction of bullheads in the Sint-Annabeek. Implications for Practice• Ecological niche modeling is useful for making management decisions about the conservation of fish by giving insight into fish species distribution. • Microhabitat suitability models are useful tools to improve the reintroduction success rate and the viability of translocated or reintroduced populations, necessary for ex situ conservation of endangered fish species. • Microhabitat suitability models reveal key characteristics of streams and of species-specific constraints, which can be used to persuade water managers to alter their current management practices in favor of endangered species. • The habitat suitability index of a rheophilic fish species, e.g. the bullhead, can be used as a guide for habitat improvement by water and wildlife managers.

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“…Stocking hatchery brown trout is known to have a negative impact on the growth and survival of various stream dwelling species (Buoro, Olden, & Cucherousset, ). Alpine bullhead are less abundant at sites with a high abundance of S. trutta (Baran et al., ). However, the effect of habitat degradation and trout stocking on the capacity of Alpine bullhead populations to resist natural disturbances like flash floods has not been addressed.…”

Section: Introductionmentioning

confidence: 99%

Habitat degradation and trout stocking can reinforce the impact of flash floods on headwater specialist Alpine bullhead Cottus poecilopus - A case study from the Carpathian Mountains

et al. 2018

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Summary In freshwater streams, flooding is a typical source of natural disturbance that plays a key role in the dynamics of animal populations and communities. However, habitat degradation and fish stocking might increase the severity of its impact. We tested the effects of a flash flood on the abundance of three size classes of headwater dwelling Alpine bullhead, Cottus poecilopus, in the streams of the Carpathian Mountains in the Czech Republic, that are stocked with hatchery‐reared brown trout, Salmo trutta. We showed that the overall abundance of Alpine bullhead was highest at the sites with the least degraded habitat (i.e., natural habitat) and we caught almost no Alpine bullhead at the sites with the most degraded habitat. The flash flood had a strong negative effect on the abundance of the largest individuals of Alpine bullhead. Abundance of small and medium size Alpine bullhead was negatively affected by the abundance of adult stocked brown trout before as well as after the flash flood. However, negative effect of adult brown trout abundance on abundance of large Alpine bullhead was not significant before the flash flood, and it became significant after the flash flood. This could indicate an accumulation of negative impacts of trout stocking and flash flood on this size class. Overall, our results suggest that stocking of hatchery trout and habitat degradation can reinforce the impact of flash floods on the population of Alpine bullhead in the streams of the Carpathian Mountains.

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Abundance of Cottus poecilopus is influenced by O₂ saturation, food density and Salmo trutta in three tributaries of the Rožnovská Bečva River, Czech Republic

Cited by 4 publications

References 10 publications

Comprehensive analysis of population genetics of Phoxinus phoxinus ujmonensis in the Irtysh River: Abiotic and biotic factors

Comprehensive analysis of population genetics of Phoxinus phoxinus ujmonensis in the Irtysh River: Abiotic and biotic factors

Microhabitat suitability as a tool to improve the success rate of a translocation or reintroduction, case‐study of the bullhead (Cottus perifretum) in Flanders, Belgium

Habitat degradation and trout stocking can reinforce the impact of flash floods on headwater specialist Alpine bullhead Cottus poecilopus - A case study from the Carpathian Mountains

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Abundance of Cottus poecilopus is influenced by O2 saturation, food density and Salmo trutta in three tributaries of the Rožnovská Bečva River, Czech Republic

Cited by 4 publications

References 10 publications

Comprehensive analysis of population genetics of Phoxinus phoxinus ujmonensis in the Irtysh River: Abiotic and biotic factors

Comprehensive analysis of population genetics of Phoxinus phoxinus ujmonensis in the Irtysh River: Abiotic and biotic factors

Microhabitat suitability as a tool to improve the success rate of a translocation or reintroduction, case‐study of the bullhead (Cottus perifretum) in Flanders, Belgium

Habitat degradation and trout stocking can reinforce the impact of flash floods on headwater specialist Alpine bullhead Cottus poecilopus - A case study from the Carpathian Mountains

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Abundance of Cottus poecilopus is influenced by O₂ saturation, food density and Salmo trutta in three tributaries of the Rožnovská Bečva River, Czech Republic