Organic carbon burial calculation using sediment trap and sediment core records from Rostherne Mere, Cheshire, UK (1360-2016)

Sediment trapping using two sequencing traps at 10 m and 25 m water depth was carried out at Rostherne Mere from May 2010 to September 2016. The traps sequentially opened into 12 individual 250 ml HDPE bottles, each representing a two-week collection period (except in January and February longer collection periods of up to four weeks were used). The traps were reset every six months as dictated by the trapping interval used, with trap sediment kept cool, dark and sealed during transport to the laboratory where it was stored frozen prior to analysis. A 112cm long sediment core was collected at 26 m water depth in September 2011 using a Livingstone piston corer. The sealed core was transported vertically to the laboratory, and stored vertically in a dark cold room at 5°C, prior to extrusion at 1cm intervals for the upper 50cm of sediment, and then at 0.5cm intervals for the remainder of the core. Mass-spectrometry elemental analysis was conducted for 23 sediment samples from a combination of sediment core and sediment trap sources. A range of organic matter percentage (OM%) samples were selected to generate an estimated OM to total organic carbon (TOC) conversion, specifically for application to Rostherne Mere sediment samples. The data was collated to Excel spreadsheets held by the lead author at Loughborough University. For ingestion into the Environmental Information data was extracted from the Excel spreadsheets and converted into a comma separated file.

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The impact of nutrient change and climate alteration on the deep eutrophic lake, Rostherne Mere, Cheshire, UK