Search Results - "Vašek, Mojmír"

Calibration of fish biomass estimates from gillnets: Step towards broader application of gillnet data by Říha, Milan, Prchalová, Marie, Brabec, Marek, Draštík, Vladislav, Muška, Milan, Tušer, Michal, Bartoň, Daniel, Blabolil, Petr, Čech, Martin, Frouzová, Jaroslava, Holubová, Michaela, Jůza, Tomáš, R. Moraes, Karlos, Rabaneda-Bueno, Ruben, Sajdlová, Zuzana, Souza, Allan T., Šmejkal, Marek, Vašek, Mojmír, Vejřík, Lukáš, Vejříková, Ivana, Peterka, Jiří, Kubečka, Jan

“…•The aim of this study was to calibrate gillnet catches using Fish Biomass per Area obtained by active methods.•We found a strong positive linear relationship…”
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Long-term monitoring of fish in a freshwater reservoir: Different ways of weighting complex spatial samples by Tesfaye, Gashaw C., Souza, Allan T., Bartoň, Daniel, Blabolil, Petr, Čech, Martin, Draštík, Vladislav, Frouzová, Jaroslava, Holubová, Michaela, Kočvara, Luboš, Kolařík, Tomáš, Martinez, Carlos, Moraes, Karlos R., Muška, Milan, Prchalová, Marie, Říha, Milan, Sajdlová, Zuzana, Soukalová, Kateřina, Šmejkal, Marek, Tušer, Michal, Vašek, Mojmír, Vejřík, Lukáš, Vejříková, Ivana, Peterka, Jiří, Jůza, Tomáš, Kubečka, Jan

“…Anthropogenic activities continue to pose the greatest challenges to freshwater ecosystems. Therefore, long-term monitoring is essential for the management and…”
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Openness of Fish Habitat Matters: Lake Pelagic Fish Community Starts Very Close to the Shore by Moraes, Karlos, Souza, Allan T., Vašek, Mojmír, Bartoň, Daniel, Blabolil, Petr, Čech, Martin, Santos, Romulo A. dos, Draštík, Vladislav, Holubová, Michaela, Jůza, Tomáš, Kočvara, Luboš, Kolářová, Kateřina, Matěna, Josef, Peterka, Jiří, Říha, Milan, Sajdlová, Zuzana, Šmejkal, Marek, Tsering, Lobsang, Kubečka, Jan

“…Fish communities differ significantly between the littoral and the pelagic habitats. This paper attempts to define the shift in communities between the two…”
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Correction: Biomass and abundance biases in European standard gillnet sampling by Šmejkal, Marek, Ricard, Daniel, Prchalová, Marie, Říha, Milan, Muška, Milan, Blabolil, Petr, Čech, Martin, Vašek, Mojmír, Jůza, Tomáš, Herreras, Agustín Monteoliva, Encina, Lourdes, Peterka, Jiří, Kubečka, Jan

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A simple fish-based approach to assess the ecological quality of freshwater reservoirs in Central Europe by Blabolil, Petr, Říha, Milan, Ricard, Daniel, Peterka, Jiří, Prchalová, Marie, Vašek, Mojmír, Čech, Martin, Frouzová, Jaroslava, Jůza, Tomáš, Muška, Milan, Tušer, Michal, Draštík, Vladislav, Sajdlová, Zuzana, Šmejkal, Marek, Vejřík, Lukáš, Matěna, Josef, Boukal, David S., Ritterbusch, David, Kubečka, Jan

“…The assessment of ecological quality in freshwater ecosystems is a key issue in many countries, but conditions for the development of assessment methodologies…”
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Pelagic underyearling communities in a canyon-shaped reservoir in late summer by JŮZA, Tomáš, VAŠEK, Mojmír, KUBEČKA, Jan, SEĎA, Jaromír, MATĚNA, Josef, PRCHALOVÁ, Marie, PETERKA, Jiří, ŘÍHA, Milan, JAROLÍM, Oldřich, TUŠER, Michal, KRATOCHVÍL, Michal, ČECH, Martin, DRAŠTÍK, Vladislav, FROUZOVÁ, Jaroslava, HOHAUSOVÁ, Eva, ŽALOUDÍK, Jiří

“…The community of pelagic fish fry present during late summer was studied in the canyon-shaped and eutrophic Římov Reservoir, Czech Republic, using nighttime…”
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Longitudinal and Vertical Spatial Gradients in the Distribution of Fish within a Canyon-shaped Reservoir by Vašek, Mojmír, Kubečka, Jan, Peterka, Jiří, Čech, Martin, Draštík, Vladislav, Hladík, Milan, Prchalová, Marie, Frouzová, Jaroslava

“…The large‐scale spatial distribution of fish was investigated within a morphometrically simple canyon‐shaped reservoir with a single major tributary and a…”
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Fish scale stable isotopes as potential indicators of nutrient pollution: Exploring the response of roach (Rutilus rutilus) scale δ15N and δ13C to a gradient of land use disturbance by Vašek, Mojmír, Brabec, Marek, Blabolil, Petr, Čech, Martin, Draštík, Vladislav, Jůza, Tomáš, Kubečka, Jan, Muška, Milan, Peterka, Jiří, Prchalová, Marie, Říha, Milan, Hejzlar, Josef

“…To examine the suitability of fish scales as potential tracers of nutrient pollution, we analysed the nitrogen and carbon stable isotope values (δ15N and δ13C)…”
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A non-lethal stable isotope analysis of valued freshwater predatory fish using blood and fin tissues as alternatives to muscle tissue by Vejřík, Lukáš, Vejříková, Ivana, Sajdlová, Zuzana, Kočvara, Luboš, Kolařík, Tomáš, Bartoň, Daniel, Jůza, Tomáš, Blabolil, Petr, Peterka, Jiří, Čech, Martin, Vašek, Mojmír

“…Stable isotope analysis (SIA) is widely used to study trophic ecology and food webs in aquatic ecosystems. In the case of fish, muscle tissue is generally…”
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A non-lethal stable isotope analysis of valued freshwater predatory fish using blood and fin tissues as alternatives to muscle tissue by Lukáš Vejřík, Ivana Vejříková, Zuzana Sajdlová, Luboš Kočvara, Tomáš Kolařík, Daniel Bartoň, Tomáš Jůza, Petr Blabolil, Jiří Peterka, Martin Čech, Mojmír Vašek

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Sexual segregation in European cyprinids: consequence of response to predation risk influenced by sexual size dimorphism by Žák, Jakub, Prchalová, Marie, Šmejkal, Marek, Blabolil, Petr, Vašek, Mojmír, Matěna, Josef, Říha, Milan, Peterka, Jiří, Seďa, Jaromír, Kubečka, Jan

“…Fish respond to predation threat by size/cohort-dependent presence in particular habitats and this may contribute to sexual segregation between habitats in…”
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Fish scale stable isotopes as potential indicators of nutrient pollution: Exploring the response of roach (Rutilus rutilus) scale δ 15 N and δ 13 C to a gradient of land use disturbance by Vašek, Mojmír, Brabec, Marek, Blabolil, Petr, Čech, Martin, Draštík, Vladislav, Jůza, Tomáš, Kubečka, Jan, Muška, Milan, Peterka, Jiří, Prchalová, Marie, Říha, Milan, Hejzlar, Josef

“…To examine the suitability of fish scales as potential tracers of nutrient pollution, we analysed the nitrogen and carbon stable isotope values (δ N and δ C)…”
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Biomass and abundance biases in European standard gillnet sampling by Šmejkal, Marek, Ricard, Daniel, Prchalová, Marie, Říha, Milan, Muška, Milan, Blabolil, Petr, Čech, Martin, Vašek, Mojmír, Jůza, Tomáš, Monteoliva Herreras, Agustín, Encina, Lourdes, Peterka, Jiří, Kubečka, Jan

“…The European Standard EN 14757 recommends gillnet mesh sizes that range from 5 to 55mm (knot-to-knot) for the standard monitoring of fish assemblages and…”
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Invasive gibel carp use vacant space and occupy lower trophic niche compared to endangered native crucian carp by Tapkir, Sandip, Thomas, Kiran, Kalous, Lukáš, Vašek, Mojmír, Meador, Travis B., Šmejkal, Marek

“…The introduction of invasive species increases interspecific competition with native species, especially if the invasive fish have a similar ecological role in…”
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Optimal gillnet sampling design for the estimation of fish community indicators in heterogeneous freshwater ecosystems by Blabolil, Petr, Boukal, David S., Ricard, Daniel, Kubečka, Jan, Říha, Milan, Vašek, Mojmír, Prchalová, Marie, Čech, Martin, Frouzová, Jaroslava, Jůza, Tomáš, Muška, Milan, Tušer, Michal, Draštík, Vladislav, Šmejkal, Marek, Vejřík, Lukáš, Peterka, Jiří

“…•We studied the impact of sampling effort reduction on fish indicators.•We use data from 29 annual surveys in eight heterogeneous ecosystems.•We compare 31…”
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Environmental DNA metabarcoding uncovers environmental correlates of fish communities in spatially heterogeneous freshwater habitats by Blabolil, Petr, Harper, Lynsey R., Říčanová, Štěpánka, Sellers, Graham, Di Muri, Cristina, Jůza, Tomáš, Vašek, Mojmír, Sajdlová, Zuzana, Rychtecký, Pavel, Znachor, Petr, Hejzlar, Josef, Peterka, Jiří, Hänfling, Bernd

“…[Display omitted] •Non-invasive environmental DNA (eDNA) metabarcoding can be used to describe fish communities.•Temperature, water age and trophic status…”
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Stable isotope evidence from archived fish scales indicates carbon cycle changes over the four-decade history of the Římov Reservoir (Czechia) by Vašek, Mojmír, Souza, Allan T., Říha, Milan, Kubečka, Jan, Znachor, Petr, Hejzlar, Josef

“…Using archived fish scale samples together with long-term monitoring data, this study investigates the potential of fish scales to record historical changes in…”
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Species‐specific schooling behaviour of fish in the freshwater pelagic habitat: an observational study by Holubová, Michaela, Blabolil, Petr, Čech, Martin, Vašek, Mojmír, Peterka, Jiří

“…Social living of animals is a broadly occurring phenomenon, although poorly studied in freshwater systems, fish schooling behaviour is an excellent example…”
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Detailed Insight into Gillnet Catches: Fish Directivity and Micro Distribution by Moraes, Karlos, Souza, Allan T., Vašek, Mojmír, Říha, Milan, Kubečka, Jan

“…Gillnets are widely used in research and commercial fishery activities. As passive gear, gillnets can be selective and dependent on the diel migration of fish…”
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Isotopic niches reveal the impact of topmouth gudgeon and gibel carp on native crucian carp by Šmejkal, Marek, Thomas, Kiran, Šmejkalová, Zuzana, Stepanyshyna, Yevdokiia, Bartoň, Daniel, Tapkir, Sandip, Meador, Travis, Vašek, Mojmír

“…Invasive species pose a major threat to natural ecosystems and directly outcompete many native species, placing them at imminent threat of extinction. The…”
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