A5049764704- Fish Ecology and Management Studies
- Point processes and geometric inequalities
- Fish Biology and Ecology Studies
- Marine and fisheries research
- Statistical Methods and Inference
- Advanced Statistical Methods and Models
- Morphological variations and asymmetry
- Statistical Methods and Bayesian Inference
- Spatial and Panel Data Analysis
- Soil Geostatistics and Mapping
- Statistical Methods in Clinical Trials
- Aquatic Ecosystems and Phytoplankton Dynamics
- Aquatic Invertebrate Ecology and Behavior
- Fish biology, ecology, and behavior
- Economic and Environmental Valuation
- Wildlife Ecology and Conservation
- Anomaly Detection Techniques and Applications
- Digital Image Processing Techniques
- Education, Psychology, and Social Research
- Optimal Experimental Design Methods
- Bayesian Methods and Mixture Models
- Traffic and Road Safety
- Regional Economics and Spatial Analysis
- Marine animal studies overview
- Advanced Statistical Process Monitoring
University of South Bohemia in České Budějovice
2015-2024
Mylan (Switzerland)
2020
Aarhus University
2020
Natural Resources Institute Finland
2020
Institute of Hydrobiology, Biology Centre, Academy of Sciences of the Czech Republic
2009-2019
Czech Academy of Sciences, Biology Centre
2008-2019
Czech Academy of Sciences
2012-2019
Prague University of Economics and Business
2019
Sewanee: The University of the South
2005-2012
Czech Academy of Sciences, Institute of Mathematics
2010
Envelope tests are a popular tool in spatial statistics, where they used goodness-of-fit testing. These graphically compare an empirical function $T(r)$ with its simulated counterparts from the null model. However, type I error probability $\alpha$ is conventionally controlled for fixed distance $r$ only, whereas functions inspected on interval of distances $I$. In this study, we propose two approaches related to Barnard's Monte Carlo test building global envelope $I$:(1) ordering and based...
We investigated diel habitat use of fish covering the littoral and pelagic zones Římov Reservoir (Czech Republic) analyzed influence predator presence shifting feeding habitats in all dominant species age groups. Our sampling revealed distinctive changes distribution reservoir, which were age- species-dependent. The overall abundance subadult was significantly higher at night than during daytime. Subadults almost absent day their increased night, although densities smaller littoral. Adults...
The graphical interpretation is realized by a global envelope which drawn jointly for all samples of functions.If mean function computed from the empirical data out given envelope, null hypothesis rejected with predetermined significance level α.The advantages proposed one-way functional ANOVA are that it identifies domains functions responsible potential rejection.We introduce two versions this test: first gives test results in original space and second immediately offers post-hoc...
Abstract The inshore fish community of the Římov Reservoir in Czech Republic was evaluated over 21 years using shore seining at night. development divided into two separate phases: a highly dynamic and unstable phase dominated by perch, Perca fluviatilis L., replaced an extremely stable cyprinid roach, Rutilus rutilus (L.), bream, Abramis brama (L.). abundance both these species oscillated during phase, but with decreasing amplitude. proportion piscivorous such as asp, Aspius aspius pike,...
Abstract Hydroacoustic methods are routinely used for fish population assessment and monitoring in lakes reservoirs around the world particularly embedded European North American lake management. However, comparability of hydroacoustic results can be difficult to assess due large number variables (sound frequency, sound pulse duration, system manufacturer, analysis method, etc.) that influence acoustic estimates. This study investigates effect variations method on commonly produced outputs....
Day and night acoustic surveys were used to compare fish stock estimates at eight European reservoirs one flooded mining pit. During both photoperiods of summer, higher biomass was observed in the uppermost 4 m water column by horizontal beaming than deeper vertical beaming. Comparisons volume backscattering coefficient (sv), (kg ha−1), abundance (ind. ha−1) average weight (g) did not show a common pattern among but found vary significantly across photoperiods. At most reservoirs, had day...
The aim of this study was to quantify the efficiency different lengths beach seine nets for each diel period in freshwater reservoirs. Only fish older than young-of-the-year were considered. Nets 10, 20 and 50 m length ("in-nets") tested an enclosed area framed by a 200 long net (block net). estimate calculated as ratio catches with in-net block divided their respective areas. significantly between day night catches. At night, depended on size fish. 10 decreased reverse correlation size. A...
Fractals are models of natural processes with many applications in medicine. The recent studies medicine show that fractals can be applied for cancer detection and the description pathological architecture tumors. This fact is not surprising, as due to irregular structure, cancerous cells interpreted fractals. Inspired by Sierpinski carpet, we introduce a flexible parametric model random carpets. Randomization introduced usage binomial variables. We provide an algorithm estimation parameters...
Abstract In polygynandrous mating systems, in which females limit reproductive success, males can increase their success by investing courtship. Earlier arrival at the spawning ground compared to when arrive may opportunities competitive systems. this study, we used passive telemetry test whether a male minnow known as asp, Leuciscus aspius , times its grounds relative of females. Males arrived model stream approximately five days earlier than on average and left four later over two years....
Understanding spatial distribution of organisms in heterogeneous environment remains one the chief issues ecology. Spatial organization freshwater fish was investigated predominantly on large-scale, neglecting important local conditions and ecological processes. However, small-scale processes are an essential importance for individual habitat preferences hence structuring trophic cascades species coexistence. In this work, we analysed real-time pelagic Římov Reservoir (Czechia) observed by...
Abstract Diel changes in littoral fish assemblage were studied four reservoirs the Czech Republic (Central Europe). The sampling was performed by beach seining an unstructured zone. Perch, Perca fluviatilis L., roach, Rutilus rutilus (L.), bream, Abramis brama carp, Cyprinus carpio ruffe, Gymnocephalus cernua pikeperch, Sander lucioperca eel, Anguilla anguilla (L.) and A. × R. hybrids exhibited higher densities at night. Only bleak, Alburnus alburnus during day. number of species night...