Using pikeperch ( Sander lucioperca ) as a model species, we investigated the factors influencing fluctuations in the abundance of piscivorous intra‐annual cohorts and assessed the role of three distinct cohorts: extremely small (ES), ordinary (or mid‐sized) fingerlings, and piscivorous in shaping year‐class strength. Our analysis was based on 13 years of data (2003–2024) collected in the Lipno Reservoir, Czechia. Using LASSO...

Extreme weather events such as drought have a significant impact on sensitive crops such as potatoes, which leads to yield losses and affects the chemical composition of tubers. In a 2-year experiment, two groups of cultivars were tested under control and dry conditions in a greenhouse: modern: Adéla and Karo, and traditional: Blaník, Bojar, Krasava, and Norma. Both drought and cultivar proved to be significant factors influen...

Predator species of fish play crucial roles in ecosystem balance through top‐down control, a mechanism frequently exploited in biomanipulation to stock predator species. Juvenile pikeperch ( Sander lucioperca ) were stocked ( n = 52,887) in spring 2023 and 2024 and autumn 2023 to compare stocking efficiency between Recirculation Aquaculture Systems (RAS) and pond culture systems. Post‐stocking mortality was high and differed a...

Senescent cells accumulate with age and contribute to tissue dysfunction and chronic inflammation. Senolytic agents that selectively eliminate senescent cells hold therapeutic promise; however, few mechanistic classes have been established. Using Cell Painting–based morphological profiling, we identified a distinct cluster of senolytic compounds comprised of both known and novel autophagy inhibitors, including AZ191, bafilomyc...

The most important potato viruses, PVY and PLRV, are transmitted by vector aphids, particularly Myzus persicae under the climatic conditions of Czechia. The integrated seed-potato protection requires detailed information on virus transmission potential in the potato fields. We developed a new system for simultaneous detection of PVY and PLRV in aphid vectors using two pairs of virus-specific primers targeting conserved genomic...

Non‐lethal diet sampling is essential where individual‐level monitoring and welfare matter, yet evidence on season‐long outcomes in agastric fishes is scarce. We tested syringe‐based gut flushing in pond‐reared common carp Cyprinus carpio over one growing season (April–September) using PIT‐tagged fish assigned a priori to three handling histories: flushed (sedated, measured, flushed), handled‐only (sedated, measured), and unha...