Czech University of Life Sciences Prague 2 articles published in JoVE Environment Bioindication Testing of Stream Environment Suitability for Young Freshwater Pearl Mussels Using In Situ Exposure Methods Michal Bílý1, Simona Němčíková1, Ondřej P. Simon1,2, Karel Douda3, Vojtěch Barák1, Bohumil Dort1 1Faculty of Environmental Sciences, Czech University of Life Sciences Prague, 2T. G. Masaryk Water Research Institute, 3Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague In situ bioindications enable determination of the suitability of an environment for endangered mussel species. We describe two methods based on the juvenile exposure of freshwater pearl mussels in cages to oligotrophic river habitats. Both methods are implemented in variants for open water and hyporheic water environments. Environment The Effect of the Application of Thyme Essential Oil on Microbial Load During Meat Drying Helga Hernández1, Adéla Fraňková2, Pavel Klouček2, Jan Banout1 1Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, 2Department of Quality of Agricultural Products, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague Microorganisms such as Escherichia coli that contaminate meat products cause foodborne illnesses. The use of essential oils in the meat drying process has not been deeply studied. Here, we present a novel method of applying thyme essential oil to meat during drying to reduce the microbial load in dried meat.