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Současný stav kvality vody v rybnících
BENEDIKT, Adam
Monitoring the quality of water in a pond in connection with fisheries management did not begin to gain importance until the end of the 20th century. Since then, numerous studies have been conducted on this topic. Currently, the most significant problem affecting not only the fishing companies is the eutrophication and its impact on the function of a pond and the surrounding landscape (including biodiversity and the overall impact of eutrophication on the environment). Anthropogenic activity (e.g., fish farming, wastewater, and agriculture) leads to an excessive release of mineral nutrients, predominately phosphorus and nitrogen, into open waters. This bachelor thesis compares the data obtained from measurements from the year 2017 with data from the 1950s. until 2014 as documented in the written records. The actual data represent the basic physicochemical parameters of water (i.e., temperature, O2 concentration, pH, conductivity and ORP, TN, NH4-N, NO3-N, TP, DRP, TOC, and chlorophyll-a). The evaluation is based on a collection of data from six ponds in the vicinity of České Budějovice (Beranov, Roubíček, Zběhov, Posměch, Kvítkovice, and Dehtář) with a representation of production and fry tanks.
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