Today, the ongoing climate change, overfishing, habitat degradation, eutrophication, and alteration of spawning and nursery grounds pose a serious threat to the viability of the pikeperch population in many temperate water bodies. This thesis aims to overview some aspects of the population dynamics of pikeperch and propose some approaches that help for effective and sustainable fisheries management. Specifically, the research findings herein address (1) the somatic growth of pikeperch in relation to temperature and other environmental factors, (2) the main drivers of abundance (recruitment) of young-of-the-year (YOY) pikeperch, (3) the trophic ecology of YOY pikeperch and (4) evaluate the contribution of stocking for the overall local population of pikeperch.An increase in water temperature and Chl-a concentration positively influences the somatic growth of pikeperch, highlighting the potential benefits of warming and turbid water. Conversely, efforts to curb eutrophication in Central Europe by increasing the clarity of the water in the future may offset these benefits. Additionally, biochronological archives were found to be valuable tools for identifying the environmental drivers of somatic growth.YOY pikeperch consist of three intra annual cohorts differing by size, habitat, diet, trophic level, survival rate and even in hatching date. The increasing spring and summer temperatures and the availability of large cladocerans positively influence extremely small and ordinary YOY intra-annual cohorts of pikeperch. Additionally, an increase in copepod density during summer benefits the extremely small cohort, while summer precipitation and low abundance of predators favour the ordinary intra-annual cohort. Interestingly, a higher abundance of extremely small conspecifics and YOY perch and higher densities of large cladocerans in summer positively influence the piscivorous intra-annual cohort. Piscivorous and ordinary intra-annual cohorts contribute directly to the formation of a new year class at age 1+ and further. On the other hand, the contribution of extremely small is indirect by supporting the development of piscivory.Young of the year, pikeperch exhibited distinct feeding patterns, transitioning from zooplanktivory to benthivory and piscivory. These feeding patterns were consistent with their stable isotopic signatures, with the piscivorous intra-annual cohort occupying the highest trophic position, followed by the ordinary and extremely small cohorts.Microchemistry analysis of otolith cores revealed that the pikeperch stocking contributes approximately about 18 % of the overall local population in Lipno reservoir suggesting the efficiency of the stocking program should be further evaluated. The use of multiple micro- elemental tracers in the discrimination of pikeperch natal origin was found highly effective, with fish born in the reservoir displaying a much higher ratio of Rb/Ca. I gratefully acknowledge the financial support provided by the following projects, which made this research possible:• South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses(CENAKVA) in accordance with the objectives of the European consortium DANUBIUS-RI.• Czech National Agency of Agricultural Research, project QK22020134 Innovative fisheries management of a large reservoir.• The Water for Life of the Strategy AV21 program of the Czech Academy of Sciences.