This dataset contains hourly water temperature data and hourly air temperature data of an experimental mesocosm facility from 21st April to 7th November 2023. The sixteen mesocosms (1 m deep, 2 m diameter) were filled with water from Windermere. The water temperature was measured every five minutes and an hourly average was calculated. Air temperature was measured by a weather station within the mesocosm compound. The experiment aimed to investigate different N:P nutrient ratios and water temperature was measured as this is an important factor needed to understand the results. Full details about this dataset can be found at https://doi.org/10.5285/406aee8f-3b85-4be6-ae7d-c92c8168a06f

Measurements were collected during the 92 day lab-based experiment carried out on replicate macrofaunal mesocosms of Astarte crenata, Ctenodiscus crispatus, Cistenides hyperborea from the Western Barents Sea and Aequiyoldia eightsi and Laternula elliptica from Rothera Point, Antarctic Peninsula. Macrofauna were collected on cruise JR18006 in the Western Barents Sea and by hand during scuba dives in the cove adjacent to Rothera research station. Experimental measurements include carbonate chemistry indices measured in water samples; carbon dioxide concentration levels; benthic invertebrate response rate, burial rate, sediment particle reworking, bioirrigation, and associated nutrient concentrations; benthic invertebrate body size and individual biomass; sediment organic material content, and sediment particle size. Supported by the INSPIRE Doctoral Training Partnership programme (grant NE/S007210/1) and 'The Changing Arctic Ocean Seafloor (ChAOS) - how changing sea ice conditions impact biological communities, biogeochemical processes and ecosystems' project (NE/N015894/1 and NE/P006426/1, 2017/2021), Natural Environment Research Council (NERC) in the UK.

This dataset contains mesocosm experimental data quantifying the ability of the bacterium Salmonella enterica Serovar Typhimurium (S. Typhimurium) to persist on microplastic beads in podzol and loamy soil. Persistence was determined through measuring surviving colony forming units (CFUs) of S. Typhimurium on the plastics after destructive sampling of the mesocosm jars. The results of a flooding and leachate experiment are also included, containing transfer potential and leachate gradients of S. Typhimurium in each soil under ambient, and flooding conditions. Water was added to soil columns containing the microbeads to simulate flooding, and the CFUs in the water and on virgin plastics were measured to determine transfer potential. In the persistence experiment samples were measured on days 1, 2, 3, 4, 7, 10, 14, 21, 28 and 35, and in the transfer and leachate experiments samples were measured after 7, 14 and 21 days, with four replicates being taken at each time point. This dataset was created as part of a study investigating how human pathogens enter agricultural environments via flooding or contaminated irrigation, and to determine the survivability of S. Typhimurium in these soils. This work is supported by the National Environmental Research Council (NE/V005847/1). Full details about this nonGeographicDataset can be found at https://doi.org/10.5285/0bfdfa23-15f8-4ffd-b1dc-e77178af0304