A FISP Project Working to Mitigate the Impacts of Climate Change on UK Whelk Fisheries nonGeographicDataset https://portal.medin.org.uk/portal/start.php?tpc=010_3bdb38f7-495c-4839-9371-2dcaebedfb37 There were two elements to the project; to understand the biological responses of whelk to marine heatwaves, and reconstructing temperature profiles using stable isotopes for growth rate analyses. These objectives were to allow an understanding of the interaction between whelk, a commercially important species, and the anticipated changes in marine heatwaves and sea bottom temperature for the present (2003 - 2022), near (2040 - 2059) and far - future (2079 - 2098) period. Two data collection methods were employed for each respective component, including simulating marine heatwaves of different intensities and durations in aquaria to assess mortality, righting time and behaviour of whelk. The latter part of the project required collecting stable isotope data from whelk shells from three sites (Shetland, Nefyn and Jersey), varying over a latitudinal gradient. Temperature profiles for individual whelk were produced and analysed. 20250630 20240622